Window/Door and Specialty Weatherstripping

Thermwell created the do-it-yourself weather sealing industry when it introduced Frost King Felt Weather-Strip, “The Original Weather-Strip,” more than 50 years ago.

Today Frost King has a comprehensive line of soft foam tapes and aluminum weatherizing products to help you save money, save energy and stay comfortable.

In addition to self-stick tapes, Frost King offers many nail-on weather-strips, including felt (the most economical); and tubular vinyl gasket.

Browse the products below. Have a question about window and door weather-stripping? Download this handy Home Checklist. View the FAQs below or, if you have a different question, call (800) 299-5700.

Product Lines

FAQ's

Q
How do I install Foam Tape?
A

It’s quick, and it’s easy to install the Frost King Home Weather stripping tape. You can print out our easy to use instructions, or take a quick look at the handy guys video.

Q
Should I clean the window or door before I install the Foam Tape?
A

A little warm water and soap should be enough to clean off any loose dust or oil from your window sill or door jam.

It’s generally good practice to clean any surface before you put down Frost King Tape. Not only will the seal be stronger, but the tape will adhere to the surface for a longer stretch of time.

Q
Can I stop cold air from leaking out the sides of my window Air Conditioner unit?
A

Air Conditioners that leak cold air into the summertime heat can cost you money.

Frost King Foam Tape and Air Conditioner Accessories are the perfect complement to your home AC Unit. The entire line of Foam Tape can be used around the edges of your AC unit to keep the cold air in and the heat out, plus The Handy Guys can show you what else Frost King can do for your Window or Central Air Conditioning Unit.

Q
How much money can uninsulated windows cost me?
A

Drafts are more than just nuisances, they can be costly, between 10% and an astonishing 25% of your home’s energy bill can be lost due to leaky windows.

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EPDM Rubber Weatherseal – 10-Year Guarantee

EPDM Rubber Weatherseal – 10-Year Guarantee

Our finest quality self stick tape. Will not harden, crack or freeze even ...

Rubber Foam Weatherseal – 5-Year Guarantee

Rubber Foam Weatherseal – 5-Year Guarantee

A tough, durable self-stick tape with minimal compression. Use the Rubber Foam ...

Vinyl Foam Weatherseal – 3-Year Guarantee

Vinyl Foam Weatherseal – 3-Year Guarantee

A versatile self-stick tape with medium compression. Vinyl Foam Weather-seal is ...

Poly Foam Weatherseal – 1-Year Guarantee

Poly Foam Weatherseal – 1-Year Guarantee

Our most compressible self-stick tape, designed for interior use, squeezes down to ...

Felt Weatherstrip

Felt Weatherstrip

The Original Weatherstrip...and still the most economical way to seal out drafts ...

V-Seal Weatherstrip

V-Seal Weatherstrip

Frost King V-Seal Weatherstrip has a built-in hinge that lets it compress ...

Fingertip Rope Caulk

Fingertip Rope Caulk

A high quality caulking compound which will not harden, crack, chip or ...

Mortite Caulking Cord

Mortite Caulking Cord

Mortite is the original name in Do-It-Yourself caulking, and it's still famous ...

Caulk Saver

Caulk Saver

Reduces the amount of caulk you need to fill or seal large ...

Socket Sealers

Socket Sealers

Made of U.L. listed fire retardant plastic, they slip into place easily ...

Tubular Vinyl Gasket Weatherstrip

Tubular Vinyl Gasket Weatherstrip

This tubular gasket effectively seals gaps around windows and doors while it ...

Door Corner Guards for Inswing Entry Doors

Door Corner Guards for Inswing Entry Doors

Door Corner Guards for Inswing Entry Doors (4-Pack) will provide a seal ...

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