Garage Door Weatherstripping and Bottom Seal Replacement in Lubbock

A cracked bottom seal lets in dust, heat and pests. HomeGuide puts professional replacement at about $45 to $180 per door.

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Garage door weatherstripping is the rubber or vinyl seal along the bottom, sides and top of the door, and replacing it is usually a short, inexpensive job. HomeGuide puts professional replacement at about $45 to $100 for a single door and $80 to $180 for a double.

South Plains Garage Door is a referral website, not a garage door company. We send your request to one independent local garage door company. You never pay us; companies we refer you to may pay us for referrals. To have your seals replaced, send a request with the form.

Three seals, three jobs

A garage door has up to three kinds of weatherstripping. HomeGuide lists them with typical material prices for a single 8-by-7-foot door:

Seal	Where it is	What it does	Material cost (single door)
Bottom seal	Along the bottom edge of the door, usually in a metal or vinyl channel	Seals the gap between the door and the floor when the door is closed	About $15 to $30
Doorstop molding	On the frame, along both sides and the top	Seals the edges of the door against the frame	About $10 to $30
Panel weatherstripping	Between sections, on doors whose sections don't interlock	Closes the gaps between sections	About $20 to $40

Most homeowners notice the bottom seal first, because it takes the most abuse: it's pressed against the concrete every time the door closes.

Signs your seals need replacing

Daylight under the door when it's closed, along part or all of the bottom.
Dust drifts just inside the door after a windy day.
Rubber that's cracked, brittle, flattened or torn, or pieces missing.
Water on the floor inside the door after a rain.
Insects, mice or leaves getting in at the corners.
A gap that comes and goes at the top of an insulated door. That can be thermal bowing, which DASMA says makes foam-core insulated doors bow toward the warmer side; on a hot day that can mean the top section rubs the header, and in other conditions a gap opens at the top.

Why seals wear out faster in Lubbock

Dust, and lots of it. National Weather Service storm reports describe "blinding blowing dust" during Lubbock wind events. During the June 2019 haboob, the Lubbock airport logged a 47 mph gust and visibility of a quarter mile. A worn bottom seal lets that dust blow straight into the garage, where it settles in the tracks, rollers and opener.

Heat and cold on the same strip of rubber. Lubbock's records run from 114°F to -17°F. The bottom seal sits in full sun on a hot driveway in summer and stiffens in winter cold, so it eventually cracks, shrinks or loses its shape.

Wind-driven rain. A seal that no longer meets the floor lets storm rain run under the door.

Bottom seals aren't one-size-fits-all

Bottom seals come in different shapes and widths, and the new one has to match the channel (the retainer) on your door. Channels vary from door to door. Before buying one yourself, cut a short piece off the old seal or photograph the end of the channel, and measure the door's width.

A rubber insert that slides into an intact channel is a common do-it-yourself job. Stop and get help if:

The channel is bent, rusted or pulling loose, or the bottom section itself is damaged.
You'd have to touch the bottom corner brackets. DASMA says those brackets connect to the springs, are "under extreme tension," and should be adjusted or loosened only by a trained door technician.

Test the door afterward. A new, fuller seal can change how the door meets the floor. DASMA's inspection checklist tests the reversing system with a 1½-inch-high solid object, such as a 2x4 laid flat on the floor under the center of the door. When the closing door touches it, the door should reverse and go back to fully open. Stand clear of the door while testing. If it doesn't, DASMA recommends a trained technician adjust the opener's sensitivity.

What seal replacement costs

National figures from HomeGuide, checked October 2026:

Job	Typical national range
Weatherstripping, single-wide garage door (materials and installation)	About $45 to $100
Weatherstripping, double-wide garage door (materials and installation)	About $80 to $180
Labor for weatherstripping work	About $50 to $150 an hour; many charge a one-hour minimum

Seals are a natural add-on to another visit. HomeGuide notes that premium garage door tune-up packages can include replacing worn weather seals, so ask about seals if you're booking a garage door tune-up or another repair. The company you're connected with sets its own price and schedule. Prices for springs, cables and openers are in the garage door repair cost guide.

Seals and an insulated door

DASMA counts weather seals among the parts that resist heat flow through a complete door, and its tested U-factor measures the whole assembly, seals included. A worn bottom seal lets air and dust bypass even a well-insulated door. If you're weighing an upgrade, see insulated garage doors.

Questions to ask the company

Which seals need replacing: bottom, sides and top, or between sections?
Is the bottom channel in good shape, or does it need replacing too?
Is the floor uneven enough that the seal can't close the gap? What are the options?
Will you test the safety reverse after the new seal is in?

Seasonal checks for seals and other parts are in how Lubbock weather wears out garage doors. If dust has already worn the rollers, see noisy garage door repair. For anything else on the door, start at garage door repair in Lubbock.

Common questions

How much does it cost to replace the weather stripping on a garage door?

HomeGuide puts professional garage door weatherstripping at about $45 to $100 for a single-wide door and $80 to $180 for a double-wide door, materials and installation included. A bottom seal alone for a single 8-by-7-foot door runs about $15 to $30 in materials.

Can the weather stripping on a garage door be replaced?

Yes. The bottom seal usually slides into a channel (retainer) along the bottom of the door, and the side and top seals are strips fastened to the door frame. Both wear out and are meant to be replaced.

Where can I buy a rubber strip for the bottom of my garage door?

Home centers and garage door parts suppliers sell them, but they come in different shapes and widths, and the new seal has to fit the channel on your door. Cut off a short piece of the old seal or photograph the end of the channel before you shop.

What is the weather stripping around a garage door called?

There are three kinds. The bottom seal runs along the bottom edge. Doorstop molding (sometimes called perimeter or stop seal) seals the sides and top against the frame. Panel or section seals close the gaps between sections on doors whose sections don't interlock.

Why is there a gap at the top of my garage door some days?

If the door is insulated, it may be thermal bowing. DASMA says foam-core insulated doors bow toward the warmer side when the inside and outside temperatures differ a lot, which can open a gap at the top or make the top section rub the header. Struts across the door, or an adjustment to the top seal or track, are the usual fixes.

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Last updated 2026-10-24