White combo walk-in cooler freezer box

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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 are available in both through-wall applications or freestanding.

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 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

Energy efficient and durable

White Polar King combo box
  • 12 Year Complete Structural Warranty
  • Cuts Operating Costs
  • Lowers Power Bills
  • Reduces Maintenance/Repair Costs
  • Eliminates Construction and Replacement Costs

The patented process for constructing our energy efficient walk-in cooler incorporates urethane insulation completely encased in fiberglass, both inside and out. This method provides superior structural strength since it forms a one-piece structure. There are no seams on a Polar King unit; therefore the structure remains completely intact so air and moisture cannot deteriorate the insulation.

One-piece seamless construction allows the unit to be set outside without the use of a roof cap or any other type of expensive protection. The walk-in is completely weatherproof and requires no assembly. Every Polar King comes with a 12-year complete structural warranty ensuring you superior durability even in the worst of weather conditions.

The Polar King walk-in is designed to save you money by being as energy efficient as possible, cutting operating costs, lowering power bills, reducing maintenance/repair costs and eliminating construction and replacement costs. Polar King uses fiberglass, so you never have to worry about rusting, denting or corroding, and you can be certain that your unit will always look factory new with regular care and cleaning. If you’re looking for a freezer rental or a walk-in cooler rental check out PolarLeasing.com.

Common walk-in cooler sizes & layouts

Inside of a Polar King industrial freezer
Blue and grey layout of refrigeration units
Some commonly requested sizes include:

  • 6×6
  • 7×7
  • 6×8
  • 8×8
  • 8×10
  • 8×12
  • 10×10

When choosing a Polar King outdoor walk-in, you have the flexibility to choose a thru-wall or freestanding unit. Thru-wall installations allow the operator to place the unit outdoors while providing the convenience of accessing the unit from indoors. Freestanding units on the other hand, are stand alone units that are not attached to the building and are accessed from outside.

The type of unit that is right for you will depend on how you intend to use the walk-in or what type of an operation you have. In many cases, a freestanding unit can later be used for a thru-wall application and vice-versa.

Whether you need a cooler, freezer or combination of both, a Polar King walk-in will save inside space and increase your buying power. Every Polar King unit allows you to design your own floor plan and enables you to locate doors and walls virtually anywhere. This flexibility provides foodservice operators unlimited storage opportunities ideally suited for their application.

Freestanding and thru-wall units come in a wide range of sizes and variations. You can get your Polar King in widths from 6′ to 16′ and in lengths up to 60′. Before you plan to expand, consider the savings a Polar King will provide.

Equipment for any cooler application

Metal shelving on the inside of a Polar King commercial freezer

Every Polar King unit includes top quality, dependable refrigeration equipment built for years of worry-free operation. All systems are installed and tested by our expert technicians prior to delivery.* There is no need for a refrigeration contractor on-site when the walk-in arrives to your location. In fact, a simple electrical connection is the only thing required to put most units into operation.**

Standard equipment for Polar King walk-in coolers and walk-in freezers includes:

  • Seamless Fiberglass Interior/Exterior
  • Hasp Lock (Ext. Door)
  • Safety Release Handle
  • Lockable Door Latch
  • Close Assist Hinges
  • Heated Door Jamb
  • Magnetic Gasket
  • Door Closer
  • Sweep Seal
  • 208-230/1/60 Refrigeration System
  • Low Ambient Controls
  • Defrost Timer
  • Light Switch/Pilot Light
  • Exterior Color Choice
  • Rain Cap Exterior Doors
  • Remote Thermometer
  • Interior Lighting
  • Crowned Roof
  • Heavy Duty Non-Skid Floor
  • Heated Freezer Door

* – Units specified with remote refrigeration are shipped detached from the walk-in and do not include installation and testing of the refrigeration system.  Unless otherwise specified, remote systems do not include refrigerant.

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

Available colors

Paint swatches

Standard Colors

Every Polar King walk-in comes standard with any one color finish of your choosing. Our manufacturing process allows us to custom match an exterior building color, so you can choose from thousands of exterior colors to match your décor.

When choosing your exterior color you can choose from any one of our standard colors, or simply provide us with a paint code for the color of your choice. If you are unable to determine which color is most suitable for your application, we can make a near perfect match by using a sample from your current building color.

Polar King can even provide alternative exterior finishes including brick, granite, or even an exact match to the pattern of your building. For examples of previous work and more information, go to our Custom Exteriors & Paint page.

Accessories for any need

Food shelving and different parts of Polar King freezer unit

The specific needs of each application can vary. That’s why Polar King offers a wide spectrum of optional accessories to make your walk-in even more suitable to your facility.

Polar King also offers graphic design services and customized finish work for walk-in cooler applications requiring logos, advertisements, or intricate color schemes.  Ask you sales representative which options are right for you.

  • Shelving
  • Ramps
  • Door View Windows
  • Security Hasp Locks
  • Stainless Steel Kick Plates
  • Digital Thermometers
  • Temperature Data Recorders
  • Exterior Lighting
  • Much More!

Humidity Control Systems

At Polar King, we recognize that the perfect combination of humidity and temperature control is critical in a number of industries. Incorrect humidity levels and fluctuating temperatures can cause spoilage, damage products, and significantly decrease shelf life. We can design a system that provides a variety of different humidity levels and have multiple systems to add and remove moisture.

Delivered pre-wired, pre-assembled, tested and approved. Ready to operate.

Crane lifting a tan colored walk in freezer for delivery

Polar King uses our own experienced drivers and our own trucks to deliver every unit. You can be certain your new outdoor walk-in freezer will arrive in the same condition it left the factory and will never be out of the hands of company personnel.

When we arrive on-site for delivery we will unload the unit and set it in place using our truck-mounted crane, forklift or whatever is required for a smooth delivery.

There is no need for a refrigeration contractor on site because the refrigeration has been installed and tested at the factory. A simple electrical connection to the building is the only requirement to put the unit into operation.

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Featured applications


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

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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

Medical/Pharmaceutical Cold Rooms

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

See cold rooms
Polar King

Custom Exteriors

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Polar King

Custom Paint

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