How to service commercial refrigerator seals

Refrigerator Seals: How They Work, Types, and Replacement

Refrigerator seals, also called door gaskets, are flexible strips installed along the edges of refrigerator doors and drawers to create an airtight barrier that keeps cold in, reduces energy loss, and promotes temperature stability.

Key Takeaways

  • Refrigerator seals help prevent cold air leaks and temperature loss
  • Worn seals increase energy use and strain refrigeration systems
  • Most gaskets are model- or brand-specific, not universal
  • Replacing a damaged seal is often more cost-effective than major repairs

What Is a Refrigerator Seal (Door Gasket)?

Typically made of rubber, PVC, vinyl, or other flexible materials, refrigerator door gaskets have folds that compress against the refrigerator frame to form a seal, preventing cold air from escaping while aiding insulation and food freshness.

How Do Refrigerator Door Seals Work?

Refrigerator seals keep cold air inside a cabinet with an airtight seal against the frame. Manufacturers often employ magnets or self-closing doors to hold seals in place.

What Are the Different Types of Refrigerator Seals?

Seal designs vary by shape, material, sealing method, and installation. Most commercial gaskets are push-in or dart style. These employ a small arrow on the bottom that is pushed into a groove on the inside of the refrigerator door.

Less common models include screw-in gaskets secured with metal retainers, and adhesive strips attached with glue. Compression models are designed to add extra force against the refrigerator cabinet for a tight seal.

Dart gasket with magnet

Magnetic push-in refrigerator gasket

Are All Fridge Seals Universal?

No. Every refrigerator manufacturer uses specific door gaskets that must be the correct size for your model. When purchasing a replacement refrigerator seal, be sure to find OEM gaskets using the correct model number specified on your product documentation.

What Are Signs of a Failing Refrigerator Seal?

You may need to replace your refrigerator seal if you notice:

  • Visible cracks or warping
  • Condensation around the door
  • Cold air escaping from the door
  • Temperature inconsistency
  • Doors not closing firmly

Worn refrigerator seals are among the top culprits that deplete refrigerator efficiency. Learn more about common causes of inefficient operation and refrigerator water leaks in our Learning Center.

Why Do Fridge Door Seals Fail?

Refrigerator seals degrade over time due to age, wear, cleaning or food chemicals, and heat exposure. We recommend inspecting each seal's condition regularly as part of your preventative maintenance routine.

How Long Do Fridge Seals Last?

Commercial refrigerator door gaskets can last from 6 months to several years. Regularly clean gaskets to improve their lifespan.

Is It Worth Replacing a Fridge Seal?

Yes. Worn seals leak cold air and put undo strain on compressors. Replacing them saves energy costs, can extend the lifespan of refrigerators, and is much less expensive than replacing a whole unit.

How Much Does It Cost to Replace a Door Gasket?

Replacing a fridge seal is not an expensive repair, especially if you do it yourself. Commercial refrigerator gasket prices vary by size and manufacturer, but most range between $50 and $200.

How to Replace a Refrigerator Door Seal

  1. Inspect the seal area; you may need to remove the refrigerator door to completely access it
  2. Remove old seals; if they're dart seals, simply pull them out. Otherwise, you may need to unscrew them or use a solvent to remove glue
  3. Thoroughly clean the track and surrounding area
  4. Align the new gasket with the door to ensure proper fit
  5. Install the gasket, starting with one corner and working your way along the edge to ensure no bubbles develop

Can I Replace Seals Myself?

Yes. Replacing refrigerator seals is a simple task on most refrigerators and requires little technical knowledge. Consult your owner's manual for any special directions, or call the manufacturer, before attempting a DIY replacement.

What Tools Do I Need to Replace a Seal?

Most push-in seals don't require tools for replacement. If you need to remove a refrigerator door or are replacing screw-in seals, you'll need a screwdriver or drill with the proper attachment. Have some clean rags on hand for wiping down surfaces.

How to Make a Fridge Seal Stronger

After installing a new fridge seal, make sure each side is completely clean and that the seal fully aligns with the door frame. If your new seal isn't seated properly on the cabinet, you may briefly apply heat from a heat gun against the closed seal to help it conform to the cabinet.

Refrigerator Seal Maintenance Best Practices

"One of the simplest maintenance tips is ensuring the door gaskets are cleaned regularly to maintain a tight seal." – Jim Van Vleet, PMR
  • Inspect door alignment and hinges regularly
  • Ensure doors seal fully and consistently
  • Keep gaskets and cabinet frames clean
  • Watch for condensation around door edges
  • Monitor temperature consistency
  • Avoid overloading or blocking door opening

How to Clean a Refrigerator Door Gasket

  1. Prepare a detergent with warm water and gentle dish soap
  2. Use a soft cloth or brush to wipe the gaskets and door frame. Be sure to pull the seals up to access crevices or folds.
  3. Thoroughly dry the seal and surrounding area

How to Remove Mold from a Refrigerator Seal

If you notice mold growing in your refrigerator seal, clean it immediately with vinegar or a bleach mixture. If the mold has been growing for some time, vigorously scrub it, keep the area dry, and monitor the seals. You may need to replace them if mold rapidly grows back.

Shop Refrigerator Seals and Replacement Parts at KaTom

KaTom offers specific refrigerator parts and door gaskets. Maintain proper operation and keep your cold storage equipment up to date with proper seals and parts from KaTom.