UL Certified certified

UL Certified

DOE 2017 Compliant certified

DOE 2017 Compliant

NSF Approved certified

NSF Approved

Ultra Low Temperature Freezer Manufacturers 2026

ELT Custom Coolers offers a comprehensive range of commercial walk-in freezer doors, sliding doors, complete walk-in boxes, and doorway accessories engineered for high-traffic cold storage environments. Designed for restaurants, food processing, grocery, and distribution facilities, these products deliver durable, energy-efficient, and drop-in-ready solutions across the USA.

Walk-In Freezer Replacement Doors (Prehung with Frame)
Walk-in Freezer Sliding Doors (Prehung with Jamb Sandwich Frame and Header)
Kason® 402 Easimount Strip Curtain Set (6"W x 84"H Strip), 38" Door Width
Walk-in Cooler Sliding Doors Prehung with Jamb Sandwich Frame and Header
8'x8'x8' High Walk-In Cooler or Freezer Box

Our Range of Products

Walk-In Freezer Replacement Doors (Prehung with Frame)

Walk-In Freezer Replacement Doors (Prehung with Frame)

  • 51 in-stock SKUs, ships immediately
  • Heated frame stops frost, ice & door-stick
  • Custom sizes for non-standard openings
Walk-in Freezer Sliding Doors (Prehung with Jamb Sandwich Frame and Header)

Walk-in Freezer Sliding Doors (Prehung with Jamb Sandwich Frame and Header)

  • 7 sizes: 47"x78" up to 96"x120"
  • Heated jamb prevents frost & door freeze-up
  • Prehung drop-in install, ships ready
Kason® 402 Easimount Strip Curtain Set (6"W x 84"H Strip), 38" Door Width

Kason® 402 Easimount Strip Curtain Set (6"W x 84"H Strip), 38" Door Width

  • Easimount allows tool-free strip swap
  • 6"W x 84"H strips fit 38" door width
  • Cuts compressor run-time by 20–40%
Walk-in Cooler Sliding Doors Prehung with Jamb Sandwich Frame and Header

Walk-in Cooler Sliding Doors Prehung with Jamb Sandwich Frame and Header

  • 18 sizes from 36"x78" to 12'x12'
  • Electric power sliding option on 12'x12'
  • Pre-assembled frame, track & trolley included
8'x8'x8' High Walk-In Cooler or Freezer Box

8'x8'x8' High Walk-In Cooler or Freezer Box

  • 8'x8'x8' dual-use cooler or freezer box
  • Includes insulated box and prehung door
  • Financing available, $2,000 off sale price

Frequently Asked Questions

What are the top freezer door brands?

ELT Custom Coolers and Kason are among the leading names in commercial walk-in freezer doors and accessories. ELT Custom Coolers manufactures UL Certified, DOE-compliant prehung replacement doors and sliding doors, while Kason supplies industry-standard strip curtain accessories. Together, they cover the full spectrum of commercial cold-storage door needs across restaurants, grocery, and distribution.

What is the best company for freezers?

What is the world's number one freezer brand?

What sizes are available for walk-in freezer replacement doors?

What is a heated jamb freezer door and do I need one?

Can I get a sliding door for my walk-in freezer?

Is equipment financing available for walk-in freezer doors and boxes?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Food Service & Restaurants

Food Service & Restaurants

Prehung replacement freezer doors and complete walk-in boxes for commercial kitchens, ghost kitchens, and commissaries.

Grocery & Retail Cold Storage

Grocery & Retail Cold Storage

Large-format sliding and swing freezer doors for supermarket backrooms, c-stores, and frozen-food retail operations.

Food Processing & Distribution

Food Processing & Distribution

Heavy-duty sliding freezer doors with forklift pass-through clearance for meat packing, seafood, and 3PL warehouses.

Pharmaceutical & Cold Chain

Pharmaceutical & Cold Chain

Insulated walk-in freezer doors with heated jamb for vaccine cold chain, biotech labs, and pharmaceutical cold storage.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Food Service & Cold Storage Operators Choose ELT Custom Coolers

18+ Years of Freezer Door Expertise

Family-owned since 2008, ELT Custom Coolers brings deep cold-storage knowledge and proven craftsmanship to every walk-in freezer door project across the USA.

Drop-In Ready, In-Stock Inventory

With 51+ freezer door SKUs and sliding door variants all in stock, orders ship quickly — no waiting on custom fabrication for standard commercial freezer openings.

UL Certified & DOE Compliant Products

All products meet UL certification and DOE 2017 energy standards, ensuring code compliance, energy savings, and food-safe temperature integrity for your cold storage operation.

Get a Quote on Walk-In Freezer Doors Today

Submit your requirements and our team will respond with product recommendations, sizing guidance, and pricing — typically within one business day.

Contact Us Today

You can also send us a quick email at sales@eltcustomcoolers.com.