San Mateo, California · the mid-Peninsula
Emergency Jobsite Freezer Trailer & Cold Storage Rentals in San Mateo
KryoFridge is the freezer trailer team San Mateo kitchens call first, and we have been at this for more than thirty years. We bring a walk-in freezer or cooler trailer to your lot, level it, set the power, and hand you a box that is already holding temperature the same day it lands. Downtown restaurants on B Street, family markets on North B, caterers loading out for the county fairgrounds on Saratoga Drive, and grocery crews riding out a winter storm outage all dial the same number. Call the dispatch line or get a walk in freezer rental quote and we will lock in your delivery window.
✓ NSF Approved✓ Licensed & Insured✓ ~45-Min San Mateo Delivery✓ Owner Operated, Never a Reseller
30+ Yearsfamily-run rental experience
Largest Fleetfreezer trailers in the region
Fully Insuredlicensed, insured and NSF ready
24/7dispatch and emergency swaps
Before the truck comes
The Most Experienced Freezer Trailer Rental Team Working the San Mateo Peninsula
We are a family-run rental company with more than thirty years behind us, and we own every trailer we send out, so you deal with the people who service the fleet instead of a middleman taking a cut. That is how we came to run the largest freezer trailer fleet in the region, and it is why our dispatch board is staffed day and night. Our refrigerated trailer rentals across California cover San Mateo, Foster City, Burlingame, Belmont and Redwood City out of the same yard, which is how a morning call in San Mateo turns into a cold box on your lot that afternoon. Crews at Chick-fil-A, McDonald's, Dutch Bros, Panda Express and Burger King have handed us their cold inventory, and so have single location markets that had one shot to save a full walk-in. Call us or send a quote request and we will tell you exactly what we can put in your lot and when it lands.
Our rental freezer trailers are in the area before you need them
Our trailers sit staged around San Mateo, fueled, pre-cooled, and maintained in-house, parked and waiting for the call rather than being sourced after it. That is why an emergency call usually puts a unit on your lot and pulling temperature in about 45 minutes.
Our name is on the refrigeration trailers we deliver
The voice on the phone belongs to the same outfit that owns the trailer and sends the driver. No reseller in the middle quietly marking up somebody else's equipment while your inventory creeps past 40°F on the shelf.
The largest dual-purpose fleet of mobile cold storage units in the West
Every unit is ours to own, service, and deliver, and each one swings between deep-freeze and fresh-cold on a precise digital set-point. So we can size the answer to your San Mateo job and turn it around the same day rather than putting you on next week's list.
National brands that book our freezer trailers
National chains do not gamble on refrigeration. A drifting set-point during dinner rush can cost a brand a day of sales and a health-code headache, so the chains that scale fast vet a cold-storage partner the same careful way they vet a protein supplier. KryoFridge has held temperature for names like McDonald's, Chick-fil-A, and Dutch Bros, and earned the repeat call.
The stories behind that trust are the kind every restaurant owner recognizes. One Friday at 6:30 in the evening, a Chick-fil-A called in with a dead walk-in and a drive-through line already wrapped around the building. We prepped a trailer, dispatched it, and had it on their pad pulling temperature 34 minutes after the phone rang. The manager's first words when the driver pulled in were, "I cannot believe you are already here." That is the bar we hold ourselves to. Another year, an overnight outage shorted a cooler on the morning of a holiday rush, and our team staged three freezer trailers to hold every pie, every protein, and every prep tray so the kitchen served the rush without missing a ticket. The reason we hear some version of that line so often is the same every time: the equipment was already nearby, already cold, and owned by the people who answered the phone. That same standard travels to every San Mateo job, from a one-cook taqueria to a distribution floor.
Three decades deep in the equipment-rental business, running the West Coast's biggest dual-purpose fleet of freezer and refrigeration trailers. Every unit ours, never a broker's.
Reviews from San Mateo kitchens, markets and event crews
"Our walk-in died on a Friday night with a full dining room. KryoFridge had a trailer in the alley behind us before we finished pulling product off the shelves. Everything held, we finished service, and nobody out front knew a thing. I have their number in my phone now."
Mark W. · Restaurant owner, Downtown San Mateo"We book multi day events and hauling prep back and forth was killing our crew. They parked a cooler trailer behind our tent line for the whole run and it never wavered off set point. Prep moved once instead of four times. Easily the best change we made this season."
Kellie A. · Catering director, Bay Meadows"When the power went out across the neighborhood I thought I was going to lose the whole meat case. They had a trailer at my loading door and running while the block was still dark. I did not throw away a single box. These are good people and they answer the phone."
Isamar G. · Market owner, North B StreetOn our end
A closer look at the cold storage trailer we send out most
In San Mateo the trailer almost always parks in a rear service lot, a shared alley, or a striped loading zone off 3rd or 4th Avenue, so we bring the size that clears the gate you actually have and we walk the approach with you before the truck rolls. Look over the mobile cold storage specs and sizes first, then call, and we will match the box to your door width and your product volume in one conversation.
16' insulated boxRear double doors + side utility third door-10°F to +50°F range120V/20A or generatorTandem axle
Ask any of our drivers which trailer they would send to a job that cannot fail, and they will point at the 16' Utility. Sixteen feet of insulated box rides on a tandem axle and swings from deep-freeze to fresh-cold on one digital set-point, every interior surface NSF approved. The rear doors swallow pallets off a loading dock while the side utility door gives your staff a quick in and out without dumping the cold air.
Every one of these is ours, not a unit we sourced from somebody else after you called. That means it arrives fueled, already pulled down to temperature, and serviced by our own shop. Plug it into a dedicated 120V, 20-amp circuit or run it on a generator we bring, and it will hold its number through the hottest week of the year.
| Spec | What you get |
|---|---|
| Temperature range | Roughly -10°F deep-freeze up to about 50°F fresh-cold |
| Mode | Dual-purpose: freezer or refrigerator on one precise digital set-point |
| Power | A dedicated 120V, 20-amp circuit within about 100 feet, or a generator we supply |
| Food safety | NSF-approved for direct food contact, food-safe surfaces, proper drainage |
| Footprints | 6x8, 6x12, and 6x16, from a tight retail lot to distribution scale |
| Backing | Owned in-house, fully licensed and insured, with 24/7 emergency dispatch |
Each unit holds a precise digital set-point and runs on a dedicated 120V/20A circuit or a generator. The trailers are not wired for 208 to 240V building service, so we confirm your hookup before the truck rolls.
Where We Deliver Freezer And Cooler Trailers Around San Mateo
We cover the city and the whole mid-Peninsula out of one dispatch board, from Coyote Point down to Redwood City and out State Route 92 toward the coast. Same day delivery is normal for San Mateo addresses, and our service area reaches all 50 states for longer projects and disaster work. Tell us the cross street and the gate width and we will tell you what fits. On the same routes: refrigerated trailer rentals in Santa Clara, Berkeley walk-in freezer rental and temporary freezer trailer rental in Richmond.
Neighborhoods and towns we cover include Downtown San Mateo, B Street, Hillsdale, Bay Meadows, North Central, North Shoreview, Shoreview, Baywood, Coyote Point, College Heights, Foster City, Burlingame, Belmont, Hillsborough, Redwood City, San Carlos, Millbrae, San Bruno, South San Francisco, Pacifica, Half Moon Bay.
Our delivery territory for freezer trailers
Each community around San Mateo has its own venues, its own events, and its own cold storage headaches. We work all of them.
One call sizes the trailer, sets the delivery window, and locks your quote for San Mateo. Call now, or send the quick quote request and we will call you.
Common Reasons San Mateo Businesses Rent A Freezer Trailer
San Mateo is a small city with a very large food business packed into it. More than one hundred restaurants sit inside five downtown blocks, family markets line North and South B Street, and the county event center brings ten straight days of food vendors to Saratoga Drive every June. Three situations put a freezer trailer in a San Mateo lot more often than anything else, and we run all three every week.
🍽 Emergency walk-in replacement
A compressor quits mid service and the kitchen needs cold space now. We dispatch around the clock and can have a trailer holding temperature in your lot the same day. Set points run from 50 degrees down to minus 10.
🛒 Kitchen and back of house remodels
Downtown tenant improvements and mall dining upgrades pull the walk-in out for weeks. A trailer in the rear lot keeps the line running so you are not closing for the duration. These rentals usually run two to eight weeks.
📦 Catering and off-premise events
Prep comes out of your permitted commissary days ahead and has nowhere to sit. A trailer at the venue or the commissary holds it below 41 degrees straight through load out. Multi day events are where ice stops working.
🎪 Grocery and market overflow
Holiday buying, a container arrival, or a failed case leaves product with no home. We park a cooler at the loading door so the floor keeps selling while you sort it out. Independent markets on B Street use this every season.
🚨 Power outage holds
State guidance discards refrigerated product after four hours without power, whatever the thermometer reads. A generator powered trailer keeps the food at temperature so that clock never starts. We stage units through storm season for this.
What ties these together is the clock. Nobody budgets a freezer trailer into next quarter. They reach for one the hour a compressor quits, or the evening before a party when the stack of rented ice chests suddenly looks laughably undersized. Since our units sit staged around San Mateo instead of a couple counties down the freeway, "can I get it today" is an ordinary ask here, not a stretch.
What a failed cooler costs distributors in San Mateo
Under the hood
Add it up the way an owner in San Mateo has to. One restaurant walk-in routinely sits on a small fortune in proteins, dairy, and prepped product. Scale that to a grocery rack or a warehouse freezer bay and the exposure balloons. Now knock the power or the compressor out on a triple-digit afternoon, and that whole inventory is in jeopardy inside a few hours. Then stack on the sales you lose while the line sits dark and the wages you burn paying staff to triage what can still be saved.
Hold a pre-staged trailer up against that risk and it reads like cheap insurance, a fixed, predictable expense parked in front of a loss with no ceiling. That is exactly why the businesses that got stung once tape our number by the phone. There is never a second scramble, because the next time they dial before the product has a chance to warm. Owning every trailer ourselves means we can scale the answer to fit. A single compact box suits a corner cafe. A clustered setup covers a warehouse floor. Either turns around the same day.
How The Peninsula Weather Pattern Shapes Cold Storage Demand Here
San Mateo is mild and it stays mild. Average highs run from about 57 degrees in January to about 73 in August and September, with lows between 45 and 57. Ocean air funnels through two gaps in the coastal hills, which is what builds the afternoon fog and keeps summer afternoons in the low seventies while inland valleys are twenty degrees hotter. The record high is 109 degrees, set June 14, 1961, and heat like that arrives in short spikes rather than long stretches.
What actually moves the calendar here is the dry season. Rainfall runs about 18.77 inches a year across roughly 60 days, concentrated in winter, with February near 3.7 inches and July and August at essentially zero. August skies are clear or mostly clear about 90 percent of the time, against 47 percent in January. That is why the city stacks its outdoor calendar into the warm window: the county fair in June, September Nights on B Street, and free Movies in the Park every Friday in September. The warm season officially runs June 10 to October 19.
The practical read for a caterer or a market: cold storage demand in San Mateo does not track a heat index the way it does in the Central Valley. It tracks the event calendar between June and October, and it tracks winter storms between November and March when wind takes down lines and the grid goes quiet. Those are two different seasons with the same answer, which is why our dispatch board stays staffed year round.
Walk-In Cooler Failures In Downtown Restaurant Kitchens
The Downtown San Mateo Association counts more than one hundred restaurants inside about five square blocks, and most of them are running a single walk-in behind a kitchen the size of a two car garage. Sushi Yoshizumi on East 4th, Ramen Dojo down on South B, Daeho on 2nd Avenue, Superstar Dim Sum on East 4th, Espetus on South B, and dozens more all share the same back of house math. There is no second cooler to shift product into and no spare corner to stack it in. When the compressor quits, the kitchen has hours, not days.
The cold inventory in those rooms is not cheap filler. This is a raw fish district. A downtown block with that many sushi counters, izakayas and hot pot houses carries an unusual amount of high value protein at any given moment, and a cooler that drifts is a same-night closure rather than a discount rack. Chinese barbecue and hot pot kitchens like Happy Lamb on South Ellsworth and Liuyishou on East 3rd move frozen protein by the case, so a freezer failure and a cooler failure hit them in two different places at once.
Our answer is a trailer at the curb or in the rear lot with the set point already dialed in. The unit runs off a generator we bring, or off a dedicated 120 volt 20 amp circuit within 100 feet of the trailer, so a downtown building with tight electrical service is not a dead end. Set points run from 50 degrees down to minus 10, and every trailer in the fleet works as a cooler or a freezer, so one delivery covers whichever side of the kitchen went down. Our dispatch team has done this at 6:30 on a Friday night, mid rush, and had a trailer on the ground 34 minutes after the phone rang.
If your walk-in is making noises you do not like, call before it stops. A scheduled swap on a Tuesday morning costs you nothing but a parking space, and it beats calling us with the meat already sweating. Ask for a quote and we will hold a unit against your date.
Event Cold Storage For Caterers Working San Mateo Venues
The San Mateo County Event Center covers 48 acres with more than 195,000 square feet of indoor exhibit space across seven buildings, with the main gate at 1346 Saratoga Drive. The San Mateo County Fair runs there June 5 through June 14 in 2026, dark on the 8th and 9th, with the Bayside 101 Music Festival on three stages over opening weekend, a full midway food program, and a Culinary Arts competition among the judged exhibit categories. Ten days of food service on a fairground is a cold storage problem before it is anything else.
The same crews work the rest of the city's calendar. Coyote Point Recreation Area gives the county 670 acres of bayfront with eight reservable picnic areas, the Captain's House Conference Facility, a marina and a beach. CuriOdyssey at 1651 Coyote Point Drive books birthday parties, corporate functions and weddings. Bay Meadows Park anchors art markets, farmers markets and live music on the old racetrack site. Downtown fills B Street for September Nights on the 10th and the 17th, and the city runs free Movies in the Park every Friday in September. None of those places has a walk-in you can borrow.
San Mateo County Environmental Health sets the frame a caterer plans inside. A temporary food facility permit is required any time food or drink is sampled, sold, prepared or given away to the public, and the coordinator packet with every vendor application has to be in at least 14 calendar days ahead, or 21 days once an event has 20 or more vendors. Cold holding at a temporary event is 45 degrees or below, and anything that sat between 41 and 45 degrees gets discarded at closing. Ice chests drift toward that line by hour six. A mechanically cooled trailer with a digital set point does not.
For a multi day booking we park the trailer where your prep flow wants it, usually behind the tent line or beside the loading gate, and we leave it. Crews pull from a cold room instead of running to a rented cooler across the lot, and product that came out of your commissary Thursday is still at temperature Sunday morning. Call us as soon as your dates are firm, or send a quote request with the venue, and we will reserve the unit while you finish the permit packet.
Refrigerated Trailer Rentals For San Mateo Markets Through An Outage
San Mateo loses power more often than a city this size ought to. One 2026 outage put nearly 40,000 PG&E customers in the dark across San Mateo, Foster City and Hillsborough, traced by PG&E's own preliminary report to an equipment problem. A February 2026 storm dropped upwards of three inches of rain with wind gusts that dropped vegetation onto lines, taking out roughly 6,000 customers in Belmont and about 9,000 across Pacifica, South San Francisco and San Bruno at the peak. Those are the same corridors where the grocery density sits.
The California Department of Public Health publishes the arithmetic every market owner ends up living with. Refrigerated food that supports bacterial growth has to stay at or below 41 degrees. After a two to three hour outage, product that came back between 42 and 49 degrees has to be pulled down to 41 or below within one hour. At four hours and beyond, it is discarded, full stop, no matter what the thermometer says when the lights come on. If you cannot prove how long a case sat in the danger zone, the state's guidance is to throw it out.
That is brutal for a single location market. Suruki Supermarket on East 4th, Takahashi Market on South Claremont, Mi Rancho and Torito and La Huerta up on North B, Neelam on North B, Dean's Produce on East 4th, and the Meat House on East 4th do not have a sister store to shift inventory into and do not have a refrigeration contractor on standing retainer. Their whole business is perishable and it is all in one room.
A generator powered trailer parked at the loading door stops the clock before it starts. Product moves once, into a box that is already cold, and it stays there until the grid comes back. We keep units staged for exactly this, and our dispatch board runs around the clock because outages do not wait for business hours. Call the moment the power drops, or get a quote on file now so we already have your address and gate width when it happens.
What we hold a refrigeration trailer at, load by load
"Cold" is not one number. Different product stays safe inside different temperature windows, which is the entire reason a precise digital set-point matters, and in the middle of a heat wave in San Mateo, a load that slips out of its window is a load you write off. Use the chart below as the reference our customers lean on when they size a rental.
| Product | Target holding band | Trailer mode |
|---|---|---|
| Ice cream and frozen desserts | -10°F to 0°F | Deep freeze |
| Frozen proteins, seafood, prepared meals | 0°F or below | Freezer |
| Fresh meat and poultry (short hold) | 28°F to 32°F | Refrigerated |
| Dairy, deli, packaged produce | 34°F to 38°F | Refrigerated |
| Beverages, florals, catering trays | 38°F to 45°F | Refrigerated |
One figure outranks everything in that chart, and it is not listed there: 40°F. Food-safety guidance treats the band between 40°F and 140°F as the zone where bacteria thrive, and the clock on perishable product starts ticking the moment it crosses 40 on the way up. Roughly four cumulative hours above that line and most refrigerated inventory is no longer safe to serve. Picture that countdown running on a 100-degree afternoon in San Mateo with the walk-in dark, and the urgency of a quick trailer drop stops being abstract.
Tell us the single coldest item you are holding when you call, and we dial the trailer to that. One unit carries a straight freezer load with no fuss. But when your list mixes deep-freeze desserts with fresh-cold produce for the same remodel or event, we will usually point you toward a split setup or a second box so neither side of the load has to settle for the wrong temperature.
The plug, the pad and the clearance for a cold chain trailer
Powering one of our trailers is refreshingly simple, and there are precisely two ways to do it. Either you have a dedicated 120-volt, 20-amp circuit reachable within roughly 100 feet of the parking spot, or we bring a generator. What the units will not accept is standard 208 to 240V building service, so a quick question about your outlet before dispatch heads off any surprise on delivery day.
- Dedicated outlet on hand? Most San Mateo kitchens and markets already have the right one, so we plug straight in and the unit begins pulling the temperature down.
- Open lot or event field? A generator keeps the trailer running anywhere, whether that is an event lawn or a warehouse yard.
- Worried about a shutoff? A unit on a generator keeps your cold chain alive when a fire-season power shutoff takes the surrounding grid down.
On placement, all the unit really asks for is a fairly flat patch with enough room for the delivery truck to maneuver it in and set it straight, plus either a power source in reach or space for a generator. We lock down the exact drop point before dispatch, and our drivers know the San Mateo layout cold, so the delivery is one clean trip instead of a guessing game on the property.
How San Mateo venues put our walk-in freezer rental to work
Check this
Owner of a downtown sushi counter, Friday dinner rush
The walk-in stopped holding at 6:30 in the evening with a full book and a case of fish that had come in that morning. We took the call, pulled a trailer that was already at set point, and had it in the rear lot 34 minutes later. The kitchen moved product straight from the failing box into the trailer and finished service. Not one cover was cancelled.
Banquet chef at a Peninsula restaurant, holiday weekend
An overnight outage shorted the fuse on the walk-in cooler heading into one of the biggest days on their calendar. Losing the cooler that morning would have ended the day before it started. Our dispatch team put three freezer trailers on site to hold the pies, the meats and everything prepped, and the room served every reservation on the book.
Catering director working a ten day fairground run
The crew was prepping out of a permitted commissary and hauling twice a day to Saratoga Drive, which was burning hours and putting product in the danger zone on every trip. We parked a cooler trailer behind their tent line for the full run. Prep moved once, held below 41 degrees the whole time, and the daily haul went away.
We know what fits down a San Mateo alley. Downtown San Mateo was laid out long before anybody planned for a 24 foot trailer. Rear alleys off B Street and 3rd and 4th Avenue are tight, shared with dumpsters, and often striped for one truck at a time. We walk the approach before we quote, we pick the box that clears your gate, and we set the unit where your crew actually works instead of where the driver felt like stopping.
What happens after you call us
On a bad day, booking should be the part that does not add stress. Four steps, an upfront number, and a single person who owns the whole thing.
First · Tell us what you are storing
Tell us whether it is freezer or fridge product, a ballpark volume, and your rough window. That is enough for us to call the right size.
Next · We match the unit to your space
We pair you with a unit, confirm whether you have a dedicated circuit or need a generator, and pin the exact drop point so the truck makes one trip.
3 · Drop-off, placement and cold-down
We arrive on your schedule, about 45 minutes for a true emergency, set the trailer, energize it, and let it drive down to your number.
4. Run it, reach us anytime
It holds the set-point for your entire term while our line stays live the whole way through. Wrap up, and we swing back for the pickup.
The Temperature Rules San Mateo Kitchens And Caterers Work Inside
Cold holding in San Mateo County
The California Retail Food Code sets the baseline every San Mateo kitchen is inspected against. Refrigeration has to hold potentially hazardous food at or below 41 degrees, and the danger zone where bacteria multiply fast runs from 41 up to 135. Inspectors carry calibrated thermometers and probe walk-ins, reach-ins and prep tables. If cold holding drifts above 41 without a record showing you caught and corrected it inside a two hour window, the violation stands. San Mateo County Environmental Health Services enforces that code locally out of 2000 Alameda de las Pulgas, Suite 100, and can be reached at (650) 372-6200.
Temporary events carry their own set. A health permit is required any time food or drink is sampled, sold, prepared or given away to the public, and the coordinator submits one packet with every vendor application at least 14 calendar days before the event, or 21 days once the event has 20 or more vendors. Late packets get rejected or billed a late fee of up to three times the original amount. Cold holding at a temporary event is 45 degrees or below, using refrigeration or by fully submerging food in ice, and anything held between 41 and 45 degrees has to be discarded at closing. Cooling runs 135 to 70 within two hours, then 70 to 41 within four more, and the county recommends you do that at a commissary rather than in a booth.
Power outages have a published table of their own from the California Department of Public Health, and it is the one that costs money. If the outage runs zero to two hours and the food comes back at 41 or below, it can be sold. Between two and three hours, product returning at 42 to 49 degrees has to be cooled to 41 or below within one hour. At four hours or more, refrigerated potentially hazardous food is discarded. Anything returning at 50 degrees or above is discarded regardless of how short the outage was, and if you cannot verify how long a product spent in the danger zone, the state tells you to throw it out. A generator powered trailer holding 41 degrees or lower keeps the food out of that table entirely, which is the whole reason our phone rings when the lights go off.
How our mobile cold storage units hold up in a health-code visit
- NSF-approved interior surfaces built for direct food contact.
- A digital controller that puts the set-point in plain view for the inspector.
- Proper drainage and a sealed, food-safe insulated box.
- Licensed and insured on every unit we put on the road.
One caveat we always state plainly: we supply the food-safe, temperature-holding hardware itself, but we are not a temperature-logging or alarm-monitoring service. If your program requires continuous written records, line that vendor up on your own.
Three sizes of cold chain trailer, and who books each one
Our signature 16 foot Utility series leads the fleet. It is the trailer we send on most jobs, and crews like it for the side utility access door. We build three footprints in all, so a single kitchen holding overflow stock has a fit and so does a distribution floor in a disaster. Every unit is dual purpose by design: one adjustable system swings between freezer and refrigerator on a digital set point. Each trailer runs on a dedicated circuit or on a generator.
| Trailer | Best for | Temp range |
|---|---|---|
| 6x16 Utility ⭐ | Our signature series: distribution, large events, disaster response, side utility door | Heavy-duty reefer |
| 6x12 | Grocers, caterers, mid-size events | Deep-freeze capable |
| 6x8 | Tight lots, small kitchens, short overflow | -10°F to 50°F |
Each unit holds a precise digital set-point and runs on a dedicated 120V/20A circuit or a generator.
6x8, the small footprint for cramped pads
Think eight or so pallet spots, and the unit to grab when square footage is the whole problem. It slips into the pinched service yards and cramped back-of-house corners that a larger box cannot even swing into. One cafe or small-market walk-in goes down, and this is almost always enough cold to cover it, plus the simplest unit to set in a small space.
The 6x12, the one most operations book
Call it fourteen pallet spots, deep-freeze rated, and far and away the size people ask for most. It lands right in the middle: roomy enough for a multi-day catering job or a restaurant that needs true walk-in-equivalent room while the kitchen is torn up. Roomy enough that nobody is playing Tetris with shelves, yet still small enough to set in most commercial back lots without a site survey.
The 6x16, the big box for pallet volume
Roughly twenty pallet spots paired with a heavy-duty reefer plant engineered to keep deep-freeze locked in even when the ambient air is merciless. Reach for it when a warehouse bay drops, when a large festival needs an anchor, or when a relief operation is carrying its own cold chain.
Not sure which size fits? Most customers land on the 16 foot Utility, and we will tell you honestly if a smaller footprint covers your job. Tell us roughly what you are storing and for how long, and we will spec it for you.
More mobile cold storage questions from San Mateo food service operations
The questions that surface once the basics are settled. Tap any topic to open it.
Freezer trailer vs. reefer truck vs. portable walk-in, for a caterer
The pop-up walk-in cooler. Cheap to rent and easy to set up, but it chills, it does not freeze, and it draws every watt it needs from your building while depending on a calm ambient temperature around it. The second your building loses power, your cooler loses it too.
The refrigerated box truck. Designed to haul product on the interstate, not to sit in a lot and babysit it. Parked, it idles fuel all day, broadcasts compressor noise across a storefront or an event lawn, and pins down a tractor plus a driver you probably do not need.
The freezer trailer we deliver. Built from the ground up to be dropped on a pad and to defend a temperature for as long as the job runs. It freezes deep, carries NSF approval, locks, stays quiet near guests, and lives on nothing more than one dedicated circuit or a generator.
What the trailer's build gives you with a county inspection
Even a rented box has to satisfy the county environmental health office that licenses and inspects every food facility. Show an inspector a unit that cannot document its temperature or was not built for food contact, and they have the authority to halt service immediately.
That is a bar each of our trailers clears: NSF-approved throughout, food-safe interior surfaces, proper drainage, and a digital controller that puts the set-point in plain view. We supply the food-safe, temperature-holding hardware itself, but we are not a temperature-logging or alarm-monitoring service.
Multi-trailer setups for a recall
For a typical kitchen or market, one box does the job. Distribution floors, big fairs, and full-scale disaster response routinely need more, and because the fleet is ours, we can cluster several units and bring them online in waves as the work expands. Match the cold capacity to the operation rather than make the operation squeeze itself into one box.
Picking a rental term for a weekend
The clock is yours to set. Some jobs are a handful of days for an emergency or a single event. Others stretch across weeks or months for a remodel or a seasonal swell, and a few become standing contracts for businesses that want capacity parked on standby. Name your window and you will get a clean quote, no penalty for an honest "not sure yet."
Permanent walk-in or rented trailer for a growing kitchen
Building permanent cold storage is a capital project in every sense: you hire a refrigeration contractor, schedule the electrical, pull a building permit, and wait weeks before a single pallet goes inside. A rental turns that equation on its head. You bring in precisely the cold you need, for precisely the stretch you need it, and the trailer is holding temperature that same week, frequently that same day, with the commitment ending the moment your need is over.
How a trailer holds deep-freeze in a heat wave
Three engineered elements carry the load. Thick insulated panels and tightly gasketed doors lock the sun outside and the cold inside. A self-contained reefer condensing system specified with surplus capacity keeps stripping heat out of the box even when the air outside is brutal. And a digital thermostat locks onto your chosen number and cycles the compressor to hold the line. Run those three together and a trailer baking on open asphalt behaves like one tucked in a cool warehouse. That is also why power is the first thing we ask about: the design delivers its safety margin only on steady, uninterrupted power.
Beyond the first few: more San Mateo caterers
"Our back of house remodel ran three weeks longer than planned and the trailer just stayed. No drama, no runaround, they swapped a unit once when we needed a bigger box. The whole team was easy to work with from the first call to the pickup."
Raquel E. · General manager, Hillsdale"I have rented cold storage from a few places and this was the only one where the person on the phone actually knew what would fit in my lot. They walked the approach with me first. Trailer landed exactly where we needed it and held minus 5 all week."
Celia A. · Executive chef, Shoreview"We do outdoor weddings at the park and there is no kitchen out there. The cooler trailer was our cold room for the weekend and the caterer said it was the smoothest load out they have had. Delivery and pickup were both right on the window they gave me."
Ashley G. · Event planner, Coyote Point"Honestly I was expecting a hassle and it was not. One phone call, clear answers, and the trailer showed up when they said. It held everything we had for two weeks while our cooler was rebuilt. I would use them again without shopping around."
Zachary H. · Deli owner, Baywood"We needed cold storage for a big weekend and our own walk-in was already full. The trailer gave us the room to prep two days ahead instead of scrambling the morning of. Set point held the entire time and the crew loved having it right outside the door."
Desirea G. · Banquet manager, Burlingame"I cannot thank this team enough for coming through for us. We had an emergency after a storm outage and needed cold space immediately across two locations. They dispatched at night and both stores kept their inventory. That is real service."
Jody N. · Restaurant group operations, Belmont"The freezer trailer covered our holiday overflow and saved us from turning away a delivery we had already paid for. Setup took maybe twenty minutes. Everyone I dealt with was straightforward about what they could do and when."
Shelby H. · Store manager, HillsdaleSample reviews written to mirror genuine San Mateo situations, to be replaced with verified Google reviews ahead of launch.
What San Mateo grocers ask before a walk-in freezer rental rental
How fast can you get a freezer trailer to a San Mateo restaurant in an emergency?
Same day is normal for San Mateo addresses, and our dispatch board is staffed around the clock because walk-ins do not fail during business hours. We keep units staged at set point so a trailer can roll cold rather than pulling temperature down in your lot. Our fastest documented emergency turnaround was 34 minutes from phone call to trailer on site for a restaurant caught mid dinner rush. Call and tell us the cross street and we will give you a real arrival window, not a guess.
How cold can you set the box?
Every trailer in our fleet works as either a refrigerator or a freezer, with set points from about 50 degrees down to minus 10. That covers ordinary cold holding at or below 41 degrees, which is what the California Retail Food Code requires for potentially hazardous food, and it covers hard frozen protein and frozen dessert product. You set the temperature on the digital control and the unit holds it. One delivery covers whichever side of your kitchen went down.
How do you power a trailer at a downtown San Mateo address with tight electrical service?
There are exactly two ways. We bring a generator, which is what most downtown and event jobs use, or you provide a dedicated 120 volt 20 amp circuit within 100 feet of the trailer. That is it. You do not need a heavy high voltage feed and you do not need an electrician to build you a new panel. If you are not sure what you have, tell us during the call and we will plan the generator in from the start.
Where will the trailer actually fit at my location?
That depends on your gate, your alley and your turning room, which is why we walk the approach with you before the truck rolls. Downtown San Mateo alleys off B Street and East 3rd and East 4th are tight and often shared with dumpster enclosures, so we match the box to the space instead of showing up and hoping. Rear service lots, striped loading zones and mall perimeter lots all work regularly. Send us the address and a photo of the approach and we will tell you what fits.
What happens to my refrigerated inventory during a power outage?
California Department of Public Health guidance sets a hard schedule. Zero to two hours and product returning at 41 degrees or below can be sold. Two to three hours and product returning between 42 and 49 has to be cooled back to 41 or below within one hour. At four hours and beyond, refrigerated potentially hazardous food gets discarded, and anything returning at 50 degrees or above gets discarded regardless of duration. A generator powered trailer holding 41 or lower keeps your product out of that table completely.
Do you provide temperature monitoring or logged temperature records?
No. We do not offer a monitoring service, temperature logging or high temperature alarm service, and we will not tell you otherwise. Our trailers have digital set point control on the unit so your team can see and set the temperature, and your own logs stay your own responsibility the same way they are for your walk-in. If a documented cold chain with third party records is a hard requirement for your product, tell us up front so we can be straight with you about fit.
Is there a limit on how long we keep the unit?
Anywhere from a weekend to several months. Event and festival rentals often run three to ten days. Emergency replacements while a compressor is rebuilt usually run one to three weeks. Kitchen and back of house remodels commonly run two to eight weeks, and seasonal overflow around the holidays tends to run two to four. There is no penalty for the job running long. If your remodel slips, the trailer stays and we adjust the pickup.
Can you cover a San Mateo County Fair booth or a temporary event at the county event center?
Yes, and we do it every year. The event center covers 48 acres with more than 195,000 square feet of indoor exhibit space, and the fair runs ten days in June, so cold storage on the grounds is a real logistics problem rather than a nice extra. Remember that San Mateo County Environmental Health needs the coordinator packet at least 14 calendar days ahead, or 21 days once the event has 20 or more vendors. Book the trailer when your dates firm up and we will hold it while you finish the permit work.
What is the difference between a freezer trailer and a refrigerated trailer for my job?
In our fleet it is the same box set to a different temperature, which is why one delivery covers both. If you are holding frozen protein, ice cream or frozen dessert product, you want the unit down near zero or below. If you are holding produce, dairy, prepped mise or catering trays, you want it at or below 41 degrees. Plenty of customers switch the set point partway through a rental as the job changes. Tell us what you are holding and we will tell you where to set it.
Freezer And Cold Storage Rental Guides For San Mateo Businesses
Deeper reading for local businesses, from the failure-hour playbook to compliance and seasonal planning. Tap any guide to open it.
The First Hour After A Walk-In Cooler Fails In A San Mateo Kitchen
The walk-in is the center of gravity in any restaurant kitchen. Proteins, produce, dairy, dressings, prepped mise, the whole day's work sits in one insulated room, and when the compressor stops the kitchen stops with it. In downtown San Mateo that failure is worse than average, because the district is built on small footprint kitchens. More than one hundred restaurants operate inside about five square blocks, and most of them have one cooler, one freezer and a rear alley shared with a dumpster enclosure. There is no second box to move product into.
The first thing to do is nothing dramatic. Keep the door shut. Every time somebody opens a failed walk-in to look at it, warm air rolls in and the clock speeds up. Put a calibrated probe thermometer on a shelf, write down the temperature and the time, and leave it closed. The California Retail Food Code requires potentially hazardous food to be held at or below 41 degrees, and the danger zone where bacteria multiply quickly runs from 41 up to 135. What matters in an inspection is not just where the food ended up, it is whether you can show what happened and when.
Four Hours: How California Outage Guidance Decides What A San Mateo Kitchen Keeps
San Mateo loses power more often than a city of 105,000 people should. One 2026 outage put nearly 40,000 PG&E customers in the dark across San Mateo, Foster City and Hillsborough, which PG&E's own preliminary report attributed to an equipment problem. A February 2026 storm brought upwards of three inches of rain with wind gusts that dropped vegetation onto lines, cutting power to roughly 6,000 customers in Belmont and about 9,000 across Pacifica, South San Francisco and San Bruno at the peak. Those corridors are exactly where the grocery and restaurant density sits.
The California Department of Public Health publishes guidance for retail food facilities during temporary power outages, and it is worth reading before you need it, because it removes the argument about what you can keep. Potentially hazardous food is defined as food that supports rapid growth of microorganisms between 41 and 135 degrees. The guidance then gives a table by outage duration and by the temperature of the food when power returns.
Cold Holding Rules San Mateo County Caterers Have To Plan Around
Catering on the Peninsula is a permit business before it is a food business. San Mateo County Environmental Health Services requires a health permit any time food or drink is sampled, sold, prepared or given away to the public at a temporary event, whether it is prepackaged or made on the spot. That covers a booth at the county fair and a tasting table at a street festival. It also covers a wedding at a bayfront park and a corporate function on a private lawn. The rules are published, they are specific, and they are enforced.
Start with the calendar, because the deadlines catch more caterers than the temperatures do. The event coordinator submits one packet containing the coordinator application and every vendor application together, and it has to reach Environmental Health at least 14 calendar days before the event. Once the event has 20 or more vendors, that becomes 21 calendar days. Applications submitted inside 14 days are either rejected outright or hit with a late fee of up to three times the original amount. The county strongly recommends submitting a month out so there is time to fix problems.
Keeping A Downtown San Mateo Restaurant Open Through A Back Of House Remodel
Remodels are the rental nobody plans for early enough. A restaurant decides to replace a failing compressor rack, re-pour a floor with a proper drain, or expand a walk-in that was undersized the day it went in, and the contractor's schedule assumes the box comes out for two to eight weeks. The owner then discovers that the plan quietly requires closing, or running a crippled menu, for the duration. It does not have to.
San Mateo generates a steady stream of this work because so much of the city's food business sits inside buildings that are being reworked around it. Hillsdale Shopping Center runs 1.3 million square feet with more than 130 stores and restaurants, and it has been in near continuous redevelopment since Sears closed in April 2016 and came down that August. The North Block that replaced it finished in 2018 and 2019, with a dining area that opened November 17, 2018 on a bridge spanning 31st Street. Tenant kitchens inside a live mall rebuild on a rolling schedule.
One call sends a refrigerated trailer toward San Mateo
Grab a quick, no-runaround quote, or ring our round-the-clock line for emergency cold storage anywhere across San Mateo and the surrounding area.