Boulder, Colorado · the Boulder Valley

Boulder: Mobile Same-Day Freezer Trailer Rentals

Pre-cooled KryoFridge mobile cold storage unit photographed in side profile on a lot in Boulder, Colorado

KryoFridge is Boulder's local team for portable freezer trailer rentals, working with North Boulder food and beverage makers on one side of town and farm stands, market vendors, and nurseries around the county on the other. Every trailer arrives cleaned, cooled down, and ready to load the moment it parks, whether that is behind a Gunbarrel production line or beside a farm truck at the edge of a field. Call us now for same-day dispatch, or request a free quote and we will confirm your delivery window today.

✓ NSF Approved✓ Licensed & Insured✓ ~45-Min Boulder Delivery✓ Owner Operated, Never a Reseller
24/7emergency dispatch
+50 to -10one trailer, cooler or freezer
30+ yrsfamily rental experience
866-699-5802straight to dispatch
What it costs

The clear first choice for portable freezer trailer rentals in Boulder

We are a direct owner-operated company, not a broker matching you to someone else's equipment, backed by more than 30 years in the event and equipment rental business. When a Boulder food plant or a farm runs short on cold space, the usual fix is stacking more product into a cooler that is already packed tight. We bring real walk-in room instead, racked, pallet ready, and rolled straight to your dock or your field. Call us now or request a free quote and we will confirm a delivery window that fits your site today.

One trailer, two jobs

Most rental companies split cooler and freezer into separate equipment. Ours is one adjustable box that covers both, so there is less guessing about which refrigerated trailer to book.

We own what we deliver

KryoFridge is not a broker matching you to someone else's trailer. We own the fleet, so the company on the phone is the company that shows up at your dock.

Three decades in the rental business

KryoFridge comes out of a rental family with more than 30 years in the event and equipment world. We have seen most versions of a cold storage emergency before it happens to you.

Simple power, no surprises

A generator or a dedicated 120 volt circuit, nothing more complicated. We confirm the setup before the truck leaves the yard so delivery day has no last-minute electrical puzzle.

Dispatch that answers at 2 a.m.

A walk-in does not fail on a schedule, and neither does our dispatch team. Same-day and 24/7 emergency freezer trailer dispatch is standard, not an upcharge.

Sized to the job, not the lot

A food plant's recall hold and a farm stand's Saturday overflow are not the same size problem. We size the trailer to what you are actually storing instead of handing you whatever happens to be free.

National accounts on our refrigeration trailers route

The names below have all run our trailers on real jobs. When a brand this size hands you their frozen inventory, they have already checked everything worth checking.

A white KryoFridge dual-purpose freezer and refrigerated trailer delivered to Chick-fil-AChick-fil-A

Trailer cold storage through store remodels so frozen prep stock stayed at temperature from teardown to reopening.

zero thaw loss
A clean white KryoFridge refrigerated trailer delivered to Burger KingBurger King

Frozen stock held at spec through a compressor replacement so the location never dropped a menu item.

same-day swap
A plugged-in KryoFridge dual-purpose freezer and refrigerated trailer delivered to Panda ExpressPanda Express

Overflow freezer space behind high-volume locations, holding bulk frozen product between distributor drops.

bulk overflow
A KryoFridge mobile cold storage unit on site at Dutch BrosDutch Bros

Trailer capacity holding frozen and dairy inventory for multi-stand markets between deliveries.

multi-site account
A clean white KryoFridge cold chain trailer delivered to McDonald'sMcDonald's

Overflow frozen holding behind high-volume locations during remodels and equipment swaps, so the menu never shortens.

national account
Three decades deep in the equipment-rental business, running one of the largest dual-purpose fleets of freezer and refrigeration trailers in the West. Every unit ours, never a broker's.

Reviews from the Boulder caterers we serve

"A supplier transition left us with more raw ingredient than our cooler could hold for about ten days. KryoFridge had a trailer at our dock the next morning."

Derek Solano · production supervisor, North Boulder

"Our walk-in compressor died two days before a big holiday order. They got us running again without losing the batch."

Naomi Reyes · bakery owner, Pearl Street

"A hail storm took out a big part of our tomato crop's growing time in one afternoon and forced an early pick. Having somewhere cold to put it saved most of what we pulled."

Grant Whitfield · farm stand owner, Boulder Farmers Market
See all the Boulder reviews
No surprises

Front of the fleet: our everyday cold storage trailer

Whether it is locked near freezing behind a Gunbarrel production line or dropped to a hard freeze for an event kitchen at Boulder Reservoir, the same KryoFridge trailer covers both ends of the job.

The flagship 16' Utility portable refrigeration unit, spotless for rental in Boulder
16' insulated boxRear double doors + side utility third door-10°F to +50°F range120V/20A or generatorTandem axle

The 16' Utility is the trailer our crews reach for when the job is serious. A 16-foot insulated box on a tandem axle holds anything from -10°F deep-freeze to 50°F fresh-cold on one precise digital set-point, with NSF-approved surfaces throughout. Rear double doors take pallet loads straight off a dock, and the side utility door lets a cook grab one tray without opening the whole box to the heat.

We own every one of these units, so the trailer that shows up is fueled, pre-cooled, and maintained in-house. It runs on a dedicated 120V, 20-amp circuit or a generator we supply, and it holds its number through triple-digit afternoons. When a walk-in dies or a harvest runs long, this is the box that carries the load.

SpecWhat you get
Temperature rangeRoughly -10°F deep-freeze up to about 50°F fresh-cold
ModeDual-purpose: freezer or refrigerator on one precise digital set-point
PowerA dedicated 120V, 20-amp circuit within about 100 feet, or a generator we supply
Food safetyNSF-approved for direct food contact, food-safe surfaces, proper drainage
Footprints6x8, 6x12, and 6x16, from a tight retail lot to distribution scale
BackingOwned 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.

Freezer trailer rental delivery across the Boulder area

Our trucks run the city grid from Pearl Street to Gunbarrel, and out through the county to Longmont, Louisville, and Lafayette. We also run the canyon roads toward Lyons and Nederland when a job calls for it. If your site is on this map, we have probably parked a trailer near it.

Neighborhoods and towns we cover include Downtown Boulder, Pearl Street, University Hill, North Boulder, Gunbarrel, East Boulder, South Boulder, Table Mesa, Martin Acres, Mapleton Hill, Chautauqua, Newlands, Niwot, Louisville, Lafayette, Longmont, Superior, Lyons, Nederland, Erie, Jamestown, Ward.

Communities near Boulder we run portable refrigeration units to

Each community around Boulder has its own venues, its own events, and its own cold storage headaches. We work all of them.

Longmont

Longmont anchors the county's northeast side and runs its own Boulder County Farmers Markets location. We run cold storage out to Longmont the same day we run it inside Boulder.

Louisville and Superior

Both towns are still rebuilding years after the Marshall Fire tore through in December 2021. New restaurants, grocery stores, and construction-site kitchens opening on that timeline need cold storage before their own walk-ins are even installed.

Lafayette and Erie

Lafayette and Erie sit along the growth corridor toward Denver's northern suburbs, and new food and retail concepts keep opening as the housing does. We deliver out here on the same schedule as anywhere closer to Boulder.

Lyons

Lyons sits at the mouth of two canyons and hosts its own run of summer festivals along the St Vrain River. Event and emergency cold storage out this way often means a canyon-road delivery, which we plan for ahead of time.

Nederland

Nederland sits up in the mountains west of Boulder, far enough that a normal grocery delivery truck already runs a longer route. We treat a cold storage call from up there the same as one from inside city limits.

Niwot

Niwot's small downtown mixes shops, a farm supply store, and a few restaurants without room for a second walk-in. A trailer parked behind a Niwot storefront solves that without a remodel.

One call sizes the trailer, sets the delivery window, and locks your quote for Boulder. Call now, or send the quick quote request and we will call you.

More ways Boulder businesses use KryoFridge mobile cold storage trailer rentals

Every Boulder business needs cold space for a different reason. Here is how our portable freezer trailer rentals cover three of the biggest ones, from a food plant's overflow to a nursery's spring rush.

A pre-cooled KryoFridge freezer trailer supporting Bolder Boulder and Boulder Creek Festival weekend in Boulder

🍽 Bolder Boulder and Boulder Creek Festival weekend

Both events land on the same Memorial Day weekend and fill Folsom Field and the creek path with food vendors at once. A trailer staged nearby covers a vendor row that a single cooler cannot.

A KryoFridge refrigeration trailer covering Folsom Field and CU Events Center game days work in Boulder

🛒 Folsom Field and CU Events Center game days

A football Saturday or a basketball night at the CU Events Center spikes catering volume for a few hours at a time. We deliver and pick up around the campus event calendar.

A pre-cooled KryoFridge refrigerated trailer supporting Avery and Gunbarrel brewery packaging runs in Boulder

📦 Avery and Gunbarrel brewery packaging runs

A packaging run or a seasonal release can push a brewery's keg cold room past capacity for a week at a stretch. A trailer on the lot covers the overflow without a permanent build-out.

A white KryoFridge cold storage trailer supporting Marshall Fire rebuild zone emergency response in Boulder

🎪 Marshall Fire rebuild zone emergency response

Superior and Louisville are still rebuilding years after the county's worst wildfire. A power interruption or a construction-site kitchen out that way still needs the same fast emergency freezer trailer response.

A staged KryoFridge dual-purpose freezer and refrigerated trailer supporting Boulder County Farmers Market Saturday staging in Boulder

🚨 Boulder County Farmers Market Saturday staging

Vendors and the Food Hub's same-day produce runs both need a cold staging spot between the farm truck and the buyer. We park where the market director tells us to.

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 Boulder instead of a couple counties down the freeway, "can I get it today" is an ordinary ask here, not a stretch.

Weighing mobile cold storage against the loss

Skip the guesswork

Add it up the way an owner in Boulder 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.

Mobile cold storage rentals built for Boulder's elevation and heat spikes

Boulder sits at 5,430 feet, and the weather here swings harder than the calendar suggests it should. Summers run 30 or more days above 90 degrees most years, and a compressor built for a normal week struggles on the days that break the pattern.

Wind is the other half of it. High wind events both raise wildfire risk and put pressure on the power grid, and a walk-in cooler does not care why the power went out. When it does, the clock on everything inside starts running the moment the lights do.

Winter adds a delivery-side wrinkle instead of a storage-side one. The Front Range freeze-thaw cycle turns a muddy lot into rutted ice overnight, harder on a delivery pad than a steady, predictable cold snap somewhere else would be. We plan gravel pads and daytime delivery windows around that instead of fighting it.

Peak heat in Boulder, the load a refrigeration trailer has to hold against

Refrigerated trailer rentals for Boulder food and beverage makers

North Boulder has been a food and beverage town for decades. Celestial Seasonings built its custom North Boulder headquarters in 1990, after years of blending herbal tea out of what used to be an old barn outside town. Justin's has run its nut butter business out of Boulder since 2004, through a Hormel acquisition in 2016 and a new ownership split with Forward Consumer Partners last fall. Companies like that do not sit still.

Ownership changes. Co-packers change. A product line launches, or gets cut, faster than a fixed cooler can adjust to. A finished-goods cooler sized for last year's volume does not flex for a new production run or a recall hold. It does not flex for a warehouse move between one partner and the next either.

portable refrigerated trailer parked at a loading dock behind a Boulder food and beverage production facility, workers moving pallets, daytime

We have parked trailers behind loading docks in exactly that spot more than once, holding packaged product or raw ingredient batches while a plant works out its next step. Boulder County Farmers Markets runs its own Food Hub, an online marketplace moving local product from area producers straight to buyers outside regular market days. A chain like that lives or dies on cold holding at every hand-off point, from the farm truck to the final buyer.

Boulder has no shortage of food and beverage brands that have outgrown their own walk-in at some point in their growth. A portable freezer trailer rentals unit rolled to the dock buys real time without shutting down a production line or leasing warehouse space you only need for three weeks. Tell us what you are holding and we will size the trailer to the batch.

A KryoFridge freezer trailer built for two jobs in Boulder

One trailer, two settings. Set it toward the refrigerator range and it holds close to 50 degrees. Set it toward the freezer range and it drops to roughly 10 below zero. You are not picking between two different machines on our lot. You are picking a setting on the same box.

Power comes one of two ways. Either a generator we bring with the trailer, or a dedicated 120 volt, 20 amp circuit within 100 feet of where it parks. Nothing more complicated than that. Boulder sits inside our nationwide freezer trailer rental network, so the same fleet and the same dispatch team answering calls elsewhere answers here too.

Want exact dimensions before you call? Check the full KryoFridge freezer trailer lineup for door width and shelving layout on every size we run, then call to confirm what actually fits your Boulder site.

Portable cold storage rentals for Boulder harvest season

Boulder County Farmers Markets runs markets in Boulder and Longmont plus a winter market, an online Food Hub, and subscription boxes that move fresh produce straight from a field to a buyer's door. Growing Gardens runs weekly farm stands out of its Hawthorn Avenue site every Wednesday afternoon through November, on top of a teen farming program and a goat dairy. None of that works without cold holding somewhere between the field and the table.

Front Range harvest windows run short and the weather does not always cooperate. A hail storm rolling off the foothills or an early frost can force a grower to pull a season's worth of produce off the field in a single afternoon instead of over the two or three weeks that were planned.

portable freezer trailer parked at the edge of a Boulder County farm field near harvest time, crates of produce being loaded, morning light

A folding table with a cooler full of ice covers a slow Saturday. It does not cover a rushed pick, a market cancellation, or a Food Hub order that has to wait an extra day for a delivery slot. We have delivered trailers straight to a field edge before a truck was even loaded, and to a market lot before the first vendor set up a tent.

Most growers don't need a walk-in the size of a grocery store's meat case. A grower needs enough portable cold storage rentals capacity to hold one rough week of extra product, then send it back once the season settles down. That is the exact size of problem this trailer solves.

Walk-in freezer trailer rentals for Boulder florists and nurseries

Harlequin's Gardens has run its two-acre nursery on North 26th Street for 35 years, selling native plants, hardy roses, fruit trees, and perennials bred for Colorado's swings. Its own posted hours tell the story better than we can. Three days a week in the dead of winter. Seven days a week from April through September.

That kind of jump does not happen by accident. Spring in Boulder means a few concentrated weeks of plant sales, wedding orders, and Mother's Day flowers, all landing close enough together that a normal cooler runs out of room fast.

portable refrigerated trailer parked in a nursery yard in north Boulder surrounded by potted plants and flower flats, spring afternoon

Cut flowers and bare-root stock both sit inside a narrow safe range. Too warm and they wilt before they sell. Too cold and tender stock freezes solid, a loss either way. A florist or a grower who orders ahead of a big weekend needs somewhere cold, not freezing, to park the surplus until it moves.

We size a walk-in freezer trailer rentals unit to hold that surplus at the right range, then pick it back up once the rush passes. It is a short-term answer to a problem that only shows up a few weeks a year, which is exactly when renting beats building.

Trailer holding temperatures for Boulder caterers

"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 Boulder, 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.

ProductTarget holding bandTrailer mode
Ice cream and frozen desserts-10°F to 0°FDeep freeze
Frozen proteins, seafood, prepared meals0°F or belowFreezer
Fresh meat and poultry (short hold)28°F to 32°FRefrigerated
Dairy, deli, packaged produce34°F to 38°FRefrigerated
Beverages, florals, catering trays38°F to 45°FRefrigerated

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 Boulder 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.

Electrical and access for a walk-in freezer rental around Boulder

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 Boulder 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.
A white KryoFridge walk-in freezer trailer on generator power in Boulder

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 Boulder layout cold, so the delivery is one clean trip instead of a guessing game on the property.

Recent refrigeration trailer saves around Boulder

Practical limits

Production line manager, North Boulder

A co-packer transition left us holding a batch longer than planned. KryoFridge had a trailer at our dock the next morning, and we did not lose a single pallet.

Farm stand owner, Boulder Farmers Market

A hail storm forced an early pick on half our tomato crop in one afternoon. Having somewhere cold to put it meant we sold most of it instead of composting it.

Nursery manager, north Boulder

Mother's Day weekend always catches our cooler short. Renting ahead of the rush this year meant nothing wilted before it sold.

Built for a mile-high swing. Boulder can hit 90-plus degrees in July and a hard freeze by December in the same year. Our units are mechanically refrigerated either way, so the weather outside never decides how cold your product stays inside.

The process for getting a refrigeration trailer on your Boulder site

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.

Start here · Describe what goes in the box

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.

Then · We settle size, power and placement

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.

Delivery day · Delivery 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.

From then on · Use it as long as the job needs

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.

Temporary cold storage trailer rentals and Boulder food safety rules

Rules that apply

Colorado's retail food code is specific. Potentially hazardous food has to sit at 41 degrees or below, or 135 degrees or above, at all times except while it is actively being prepped. Boulder County Public Health applies that rule locally out of its Broadway office, the same standard behind Colorado freezer trailer rentals from Longmont to Superior.

Boulder County Public Health also licenses every retail food business, runs routine inspections, and requires at least one employee at each site to complete formal food protection manager training. Festivals and markets add a separate layer. A food vendor working a booth at the Boulder Creek Festival or a Saturday farmers market needs its own Temporary and Special Events permit on top of a standing license.

None of that is a reason to skip a festival booth or scale back a harvest. It is a reason to have a trailer on site that holds a verified 41 degrees, so the inspector's first question is already answered before they walk the row. For agency and research-institution work around CU Boulder and the federal labs in town, we carry SAM.gov registration and the licensing that comes with it.

How our refrigeration trailers hold up in an inspection

  • 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.

Which freezer trailer size fits the job

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.

One of three KryoFridge footprints, a freezer trailer ready for delivery around Boulder
TrailerBest forTemp range
6x16 UtilityOur signature series: distribution, large events, disaster response, side utility doorHeavy-duty reefer
6x12Grocers, caterers, mid-size eventsDeep-freeze capable
6x8Tight 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.

The compact 6x8, the compact unit for a few pallets

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.

6x12 trailer, the middle box for steady volume

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.

6x16 footprint, the heavy hauler for distribution and disaster

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.

Additional questions from Boulder customers

The questions that surface once the basics are settled. Tap any topic to open it.

Freezer trailer, portable walk-in or reefer truck for a job site?

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.

Food-contact surfaces, drainage and a food-safety audit

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.

When one box is not enough: a warehouse

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.

Emergency rentals against long-term contracts for a season

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."

The rent-or-build question for a second site

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 insulation and the unit handle desert heat

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.

More review notes from Boulder renters, the route that runs out to Longmont

"Selling through the Food Hub means product sometimes sits an extra day before it moves. The trailer buys us that day without losing quality."

Carla Jimenez · produce grower, Niwot

"Spring plant sales hit us faster than our cooler space could keep up with this year. Renting ahead of the rush instead of after it made all the difference."

Owen Pruitt · nursery manager, north Boulder

"Mother's Day orders always outgrow our cooler. This was the first year nothing wilted waiting for pickup."

Renata Fischer · florist, downtown Boulder

"Power flickered out for most of an afternoon and our walk-in never fully recovered. KryoFridge showed up with a trailer and a generator before we had to close."

Marcus Yee · kitchen manager, Pearl Street

"A recall hit one of our meat suppliers and we had to pull an entire lot fast. They gave us somewhere cold to put it that was not our regular case."

Bethany Cole · grocery manager, Table Mesa

"Running a booth all Memorial Day weekend means the cold has to hold no matter how busy the creek path gets. Renting from them took that worry off my plate."

Tomas Alvarez · festival concession vendor, Boulder Creek Festival

"Game day catering at Folsom Field is not like a normal Saturday for us. Extra cold storage for one weekend, delivered and picked back up, was exactly what we needed."

Priya Nakamura · catering coordinator, CU Boulder campus

"A seasonal release filled our cold room faster than usual this year. We book a trailer ahead of time now instead of hoping there is room."

Sam Ostrander · packaging supervisor, Gunbarrel

"During the rebuild after the Marshall Fire we needed cold storage for a temporary kitchen with almost no notice. They delivered it that same day."

Dana Whitcomb · relief logistics volunteer, Superior

What Boulder event crews ask before a refrigerated trailer rental

Where does my product go if the rented trailer itself breaks down during my rental?

That almost never happens because every trailer is inspected and pulled down to temperature before it leaves our yard, but if a unit ever acts up, call dispatch and we send a swap trailer and transfer your product ourselves. We do not leave a customer holding warm product while we sort out equipment on our end. Most swaps happen within hours, not days, because we own the fleet and are not waiting on a broker to locate a replacement somewhere else.

What happens if I wait until the week of Memorial Day to book a trailer?

You can still get one, but the window shrinks fast because the Bolder Boulder and the Boulder Creek Festival both land on the same weekend and pull cold storage demand from across the whole city at once. Booking two to three weeks ahead gets you the size and the date you actually want. Booking the week of gets you whatever is left on the lot.

When do I need a bigger trailer instead of the standard size?

It comes down to pallet count and how much door traffic the space will see, not a guess. A single kitchen covering one bad week of overflow needs a lot less room than a grocery counter holding a full recall lot or a nursery stocking a spring rush. Tell us what you are storing and roughly how much of it, and we size the trailer instead of overselling you one.

How does a rented trailer help me pass a Boulder County Public Health inspection?

Boulder County Public Health licenses every retail food business and runs routine inspections, and cold holding is one of the first things an inspector checks. A trailer that holds a verified 41 degrees answers that question before it gets asked, instead of a backup cooler stacked with ice that may or may not still be cold by afternoon. If your event needs a Temporary and Special Events permit on top of your regular license, tell us the dates and we will plan delivery around it.

Do the trailers lock up safely if mine has to sit on an open lot or a field overnight?

Yes. The doors take a solid padlock and the box itself is commercial construction, not a light camper shell. We also think about placement, facing the doors toward a lit area or an access road rather than an empty back fence, which does more for security than the lock alone.

Will a freezer trailer actually hold temperature through a Boulder heat spike or a hard cold snap?

Yes, the unit is mechanically refrigerated either way, so a 90 degree July afternoon or a hard December freeze does not change what happens inside the box. The bigger challenge at our elevation is usually the delivery pad, not the trailer itself. We plan gravel pads and daytime delivery windows around the Front Range freeze-thaw cycle so the truck gets in and out cleanly.

Can I park a trailer on my own property, or do I need a permit first?

On private property, placement is between you and your landlord or property manager, and we do not need a city permit for that. The moment the trailer becomes part of a public event on a city street or in a park, Boulder requires its own event permit alongside the county health permit. Tell us the address and the reason for the rental and we can tell you which situation applies.

Is loading a trailer with a pallet jack and shelving realistic for a small crew?

Yes. The trailer takes a standard pallet jack through the door, and the interior racking holds shelving for anything that is not palletized. A two-person crew loads most jobs without extra equipment. If your site has a specific loading setup, tell us before delivery and we will confirm the door and ramp height work for it.

What size trailer covers a nursery's spring plant rush without freezing tender stock?

Most nurseries need less space than they expect, because the goal is holding a few weeks of surplus stock at a cool, not freezing, range rather than storing a whole season's inventory. We set the unit to the refrigerator range for that job, not the freezer range, so cut flowers and bare-root stock survive the hold instead of getting damaged by it. Tell us your peak week's volume and we will size accordingly.

How does a recall get handled if it hits a Boulder grocery counter or food manufacturer?

The trailer becomes your quarantine space. You pull the affected lot, keep it cold, and separate it clearly from everything still in service, then hold it until you get further instruction from the supplier or the agency involved. That keeps one bad batch from shutting down your whole walk-in while you sort it out.

Does KryoFridge deliver out to Longmont, Louisville, and Superior as fast as inside Boulder?

Yes. Our trucks run the full county grid, well beyond the city core, and same-day and 24/7 emergency dispatch applies the same way in Louisville or Superior as it does on Pearl Street. Distance from downtown Boulder does not change how fast we respond.

What should a farm do with produce pulled early because of a hail storm or a frost?

Get it cold as fast as possible and sort out the sales channel second. A trailer staged at the field edge buys time to move product through the Food Hub, a Saturday market, or a direct sale instead of losing it to spoiled product while you figure out where it is going. We have delivered on short notice for exactly this kind of unplanned pick before.

The KryoFridge Resource Library for Boulder mobile freezer trailer rentals

Here is the rest of the KryoFridge fleet, in case a different size fits your job better.

The Boulder fieldwork behind our guides, a KryoFridge cold chain trailer mid-job
Sizing portable freezer trailer rentals for a Boulder food brand's ownership change

Boulder has produced more than its share of food and beverage brands that grew past a single building. Celestial Seasonings moved into a custom North Boulder headquarters in 1990 after years running out of an old barn. Justin's grew from a kitchen experiment in 2004 into a national nut butter brand, then went through a Hormel acquisition in 2016 and a new ownership split with Forward Consumer Partners in 2025.

None of those transitions happen on a clean calendar. A new co-packer needs time to ramp up production while the old one winds down. An acquisition closes on a date set by lawyers, not by how full your cooler happens to be that week.

What to ask before you book a freezer trailer rental ahead of Memorial Day weekend in Boulder

Memorial Day weekend is the single busiest food-vendor stretch on Boulder's calendar, and knowing that ahead of time saves a vendor a bad surprise the week of the event.

The Bolder Boulder draws over 54,000 runners, walkers, and wheelchair racers through the city and finishes inside Folsom Field with one of the country's largest Memorial Day gatherings. The Boulder Creek Festival runs the same four days along the creek, with more than 30 restaurants and 200 artisan vendors on site.

Boulder County Public Health Food Safety Program

Sizing a freezer trailer rental for a Front Range farm after a hail storm or an early frost

A Front Range grower plans a harvest around a normal calendar and then the weather does something else entirely. A hail storm rolling off the foothills, or a frost that lands two weeks earlier than usual, can force a farm to pull a season's worth of produce off the field in a single afternoon.

The first decision is not how big a cooler to rent. It is how much of the crop is actually worth saving right now, because not everything that gets rushed off the field survives the trip anyway.

Boulder County Farmers Markets

Generator or dedicated circuit: powering a rental freezer trailer on a Boulder farm or nursery lot

Every power question about a rental mobile freezer trailer comes down to one decision: generator or dedicated circuit. There is no third option, and knowing that ahead of time saves a round of back and forth on delivery day.

A dedicated 120 volt, 20 amp circuit within 100 feet of the trailer is the simplest path when a site already has one available. The word dedicated matters more than people expect. A circuit already feeding a walk-in's condensing unit or a row of grow lights is not dedicated, and it trips under the added load.

What actually changes the cost of a portable freezer trailer rental in Boulder

We do not put prices on this page, and for good reason. The real cost of a rental depends on details that change from one Boulder job to the next. Here is what actually moves the number, so a phone call feels like a conversation instead of a guessing game.

Size is the first variable. A single production run's overflow needs a lot less trailer than a grocery counter holding a recall lot or a nursery stocking a full spring rush. We size to the job, not the other way around.

Ready for a freezer trailer rental in Boulder?

Call now or request a free quote, and we will confirm your delivery window the same day you reach out.

Call (866) 699-5802 - 24/7 Dispatch