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Walk In Coolers

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White combo walk-in cooler freezer box
White Polar King freezer unit outside
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White Polar King walk-in freezer unit on a sunny day
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Close up of a Polar King white commercial walk-in freezer unit
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White Polar King freezer unit outside on concrete
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Polar King metal ramp on concrete
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White walk-in cooler door open outside on a sunny day
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Inside of a Polar King industrial freezer
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Metal shelving on the inside of a Polar King commercial freezer
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The top of the Polar King walk in freezer door
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Inside of a refrigeration unit with tile floors and white walls
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Black fans on a white ceiling of a Polar King commercial freezer unit
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Inside of a Polar King small refrigerated trailer with white walls and three black fans
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Inside of Polar King commercial refrigeration unit
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Grey temperature control on a white wall
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Silver light switch
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Lightbulb inside of cooler warehouse
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Commercial Walk In Coolers Engineered Specifically for Outdoor Use

The operating temperatures of Polar King walk in coolers range from 35°F (0°C) to 55°F (13°C).

Polar King commercial walk in coolers are designed specifically for outdoor applications requiring refrigerated storage. Each cooler unit is custom-built with our patented seamless fiberglass construction and available in both through-wall or freestanding applications.

All Polar King outdoor walk in coolers are delivered fully assembled and are ready to operate on delivery with a simple electrical connection. No on-site assembly or refrigeration work is required because our refrigeration experts have done all the work in advance, within Polar King’s quality-controlled facility. With a 100% seamless fiberglass design, Polar King offers the industry’s only one-piece, outdoor unit. If you’re looking for a walk in refrigerator rental, check out Polar Leasing.

The Polar King Warranty

  • 25-Year Coverage Internal Foam Structure
  • 12-Year Coverage Walk In Structure
  • 5-Year Extended Compressor Coverage
  • 1-Year Miscellaneous Parts and Accessories
  • 1-Year Refrigeration System & Components

The most energy-efficient walk in cooler on the market

White Polar King combo box
  • Cuts operating costs
  • Reduces power bills
  • Lowers maintenance/repair costs
  • Eliminates replacement and construction costs
  • Includes a 12-year structural warranty

Know why there aren’t any seams on a Polar King walk in cooler? The sleek, continuous design isn’t just for looks—it’s part of what makes our walk in coolers so energy efficient. Our patented construction process starts with premium polyisocyanurate rigid board insulation that we completely encase in durable fiberglass, inside and out. This one-piece construction increases the strength of the structure and blocks air and moisture from contacting the insulation and causing it to deteriorate. The rigid insulation completely surrounds the insulated chamber, eliminating the possibility of “hot spots” found in other units.

Polar King walk ins are so efficient that they can reduce maintenance & repair costs, cut power bills, and eliminate construction & replacement costs. The durable fiberglass structure won’t rust, dent or corrode, and it can stand up to the elements without needing a roof cap or other expensive protection. Walk in coolers arrive ready to operate without the added cost of onsite assembly — and because they’re outdoor units, you can effectively add to your square footage by relocating your cold storage outside.

The attractive units can stay looking factory new for many years with regular care and cleaning and with our 12-year complete structural warranty, you can count on your walk in cooler to last even in the most extreme weather conditions.

Need an outdoor freezer or walk-in cooler rental? Check out PolarLeasing.com.

Configurations that fit your needs

Inside of a Polar King industrial freezer
Blue and grey layout of refrigeration units

Outdoor walk in coolers can be installed as thru-wall or freestanding units, depending on what works best for your workflow. Freestanding units stand alone and are accessed from outside. Thru-wall installations combine the space-saving efficiency of an outdoor unit with the ease of indoor access. If your needs change, units can often be modified later to switch between thru-wall or outdoor access.

Polar King walk-ins can offer cooler or freezer storage — or even give you a combination of both. And because you can design your own layout with doors and walls wherever you need them, you can give your operators unlimited storage opportunities created specifically for your application. Additional configuration options can organize your walk-in cooler for even more efficiency.

Need more space inside of your building? Polar King walk ins come in 6′ to 16′ widths and can be up to 60′ in length. Before you consider expanding your structure, consider how much additional room you can gain by relocating your cold storage outside of your floor plan.

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What to expect with Polar King walk in coolers

Metal shelving on the inside of a Polar King commercial freezer

Installing a Polar King walk in cooler couldn’t be easier.  Your unit arrives at your location pre-built, tested, and ready to go* with just a simple electrical connection**. The reliable, high-quality refrigeration equipment is designed to give you many years of trouble-free operation.

Polar King walk-in coolers and walk-in freezers come standard with:

  • A smooth, continuous fiberglass surface both inside and out
  • 208-230/1/60 refrigeration system
  • Interior lighting
  • Lockable door latch
  • Hasp lock on external door
  • Rain cap exterior doors
  • Close assist hinges
  • Door closer
  • Safety release handle
  • Heated door jamb
  • Sweep seal
  • Magnetic gasket
  • Defrost timer
  • Low ambient controls
  • Light switch/pilot light
  • Your choice of exterior colors
  • Remote thermometer
  • Heavy-duty non-skid floor
  • Heated freezer door
  • Crowned roof

* – Units specified with remote refrigeration are detached from the walk-in on arrival and do not include installation or refrigeration system testing.  Remote systems do not include refrigerant unless otherwise specified.

** – Polar King delivery drivers do not perform any on-site electrical work. Electrical connections and on-site wiring are the sole responsibility of the customer and  be completed by a licensed electrician.

Colors that match your design

Paint swatches
Different color tile

Standard Colors

Your Polar King walk in cooler can be painted a solid color to match your exterior building with your choice of thousands of exterior colors.

You can choose one of our standard colors or provide us with a suitable paint code. We can also make a near perfect match with a sample of your current building color.

We even offer a variety of exterior finishes, including brick and granite, and may even be able to provide an exact match for the pattern of your building. See our Custom Exteriors & Paint page for more information and examples of our work.

Accessories that fit your application

Food shelving and different parts of Polar King freezer unit

Whether you need shelving to organize ingredients, temperature data recorders for compliance monitoring, or anything in between, Polar King has accessories to create the custom walk in you’ve been looking for.

We even offer graphic design services and custom finish work so your Polar King walk in can provide an opportunity to showcase your brand or artwork.  Ask your sales representative which options are right for you.

Accessories include:

  • Ramps
  • Shelving
  • Door view windows
  • Security hasp locks
  • Stainless steel kick plates
  • Digital thermometers
  • Temperature data recorders
  • Exterior lighting
  • And more!

Humidity Control Systems

Because fluctuating humidity and temperature can cause spoilage, damage products, and significantly decrease shelf life in sensitive products, we offer systems with precise temperature and humidity control. We can build custom walk ins to provide a variety of different humidity levels and add or remove moisture as needed for your application.

Safe delivery you can count on

Crane lifting a tan colored walk in freezer for delivery

You won’t get third-party delivery drivers with Polar King. Your new outdoor walk in cooler will arrive in the same condition it left the factory on company trucks, driven by experienced Polar King drivers. They’ll set your walk in in place with a truck-mounted crane, forklift, or other appropriate equipment to ensure a safe, smooth, and timely delivery.

Because your unit has been assembled and tested at the factory, there’s no need for an onsite refrigeration contractor. All you’ll need is a simple electrical connection to get your walk in cooler running in just a few hours.

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Featured applications

Restaurants

Walk in coolers provide outside solutions to inside storage problems, in both stand-alone and through-wall applications.

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Polar King walk-in beer cooler

Beer/Keg Coolers

Polar King’s walk in keg and beer coolers can be customized to accommodate any taproom, brewery or beer cave need.

See beer coolers
Metal shelving inside cold storage unit

Medical/Pharmaceutical Cold Rooms

Temperature-controlled environmental rooms and walk in cold rooms specifically designed for the storage of pharmaceutical products, samples and specimens.

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Custom Exteriors

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Custom Paint

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Ready to get started?

Simply fill out the contact form below and one of our specialists will be in touch soon to discuss how a Polar King walk-in can help your operation.

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Frequently Asked Questions about walk in coolers

Want to know more about Polar King walk in coolers? If you don’t see what you’re looking for below, check out complete answers to our 14 most frequently asked questions here.

How does a walk in cooler work?

Heat energy always moves from areas of higher temperature to areas of lower temperature.  Refrigerant inside of a walk in cooler absorbs heat inside, then passes through a compressor as it travels outside. The higher pressure increases the temperature of the refrigerant until it transfers heat to the outside air. When the refrigerant passes back inside, it is expanded again, cooling the refrigerant and beginning the process again.

What temperature does a walk in cooler operate at?

Walk in coolers are usually set at 35°, but specific applications may require higher or lower temperatures.

Can a walk in cooler be used as a freezer?

Standard walk ins may be able to be converted into freezers if their insulation is thick enough, but they would require major system changes. If you need a unit that can work as a walk in cooler or freezer, Polar King offers dual-temperature units that can be set for cooling or freezing temperatures with the turn of a dial.

What are common walk in cooler sizes?

Most manufacturers offer panel boxes that are assembled on site with 8’x10’ or 8’x20’ dimensions. Because Polar King’s outdoor walk ins are custom built and aren’t constrained by the size of your existing structure, we can build your walk in to whatever size fits your needs — up to 16’ x 65’.

How much electricity does a walk in cooler use?

There are many factors that affect how much electricity your walk in cooler uses, including the size of the unit, its location, and what it’s used for. Many walk-in coolers are 1½-3 horsepower systems needing 15-30 amps and 208-230 volts, 3-phase, but this may vary, depending on your application.

What type of insulation is used in walk in coolers?

Panel Boxes use foamed-in-place polyurethane components that can leave voids that allow heat to flow into the unit. Polar King walk in coolers use Polyisocyanurate rigid board insulation, which provides high compressive strength, excellent adhesion to facers, low water absorption, and low vapor transmission, and superior energy efficiency.