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Get your free estimateCraftsman Weather Seal Replacement: The San Antonio Owner’s Guide
We stock and install Craftsman-compatible weather seal replacement in San Antonio, with most jobs running $120 – $240 installed depending on door width and seal condition. The swap itself takes under an hour in most cases, and we carry the common sizes on the truck. You’ll usually find this page because you’ve noticed daylight under the door, felt a draft in the garage, or seen shredded black rubber hanging from the bottom edge. That’s the weather seal doing its job until it can’t anymore – and in San Antonio’s heat, it fails faster than most people expect.
Before you keep reading: this is the part that runs along the bottom of your garage door. It’s sometimes called a bottom seal, astragal, or weatherstrip. On Craftsman doors, it slides into a T-shaped aluminum retainer channel. When it cracks, flattens, or tears, water seeps in during the spring storms, dust blows in during the dry months, and your air-conditioned air escapes every time the garage door is closed. Jaylen Ross and our team have replaced hundreds of these in San Antonio homes, and the fix is almost always straightforward once you’ve matched the right seal profile.
Which Craftsman Models This Applies To
Most Craftsman residential garage doors sold through retailers and installed in San Antonio homes use a standard 3-inch or 4-inch T-style bottom seal. The width measurement refers to the flat portion of the rubber that hangs below the door. The T-shaped top slides into a channel on the bottom of the door panel. Older Craftsman models from the mid-2000s sometimes use a narrower 2-1/2-inch seal, and a few of the premium Craftsman door lines use a bubble-style seal with a hollow core for better compression against uneven concrete.
The simplest way to identify what you need: pull a torn piece of the old seal free and look at the profile from the end. If it’s shaped like a T, you’re in the majority. If it looks like a P or has a hollow center, it’s the bubble style. Door width matters too. Most single doors are 8 or 9 feet wide; doubles are 16 feet. We sell the seal cut to your exact door, not a universal length that leaves you with a leftover coil in the garage. On the OEM question: Craftsman-branded seals are fine but not magic. The aftermarket seals we use are EPDM rubber, which holds up in San Antonio UV better than the PVC blends used in some cheaper replacements. EPDM stays flexible down to minus 40 and doesn’t crack in direct sun the way vinyl does. That matters here, where a west-facing door can bake at 140+ degrees surface temperature in July.
Styles & brands we work with






Signs Your Craftsman Weather Seal Replacement Is Failing
- Daylight under the door in one or more spots. The slab has settled, and the old seal has compressed permanently where the floor is highest. Once the rubber takes a set, it won’t rebound. You’re seeing actual gaps, not shadows.
- Leaves, dirt, or water pooling just inside the door after a storm. San Antonio gets fast, heavy downpours. If debris is making it under the door, the seal isn’t meeting the concrete anymore, and water is next.
- Visible cracks or missing chunks in the rubber. This is UV and heat damage. The rubber oxidizes, turns hard, and starts breaking off in pieces, especially at the outer corners where the door flexes most.
- You can slide a credit card under the edge without touching the seal. Take the test: close the door, try to slide a card between the seal and the floor. If it passes easily, your seal is too compressed or too worn to do its job.
- Higher electric bills or a garage that smells damp. Every gap in the seal is an air leak. In August, that’s conditioned air leaving and 100-degree air coming in. Over a full San Antonio summer, the old seal costs you real money.
Replacement Cost & What’s Included
In San Antonio, Craftsman weather seal replacement typically runs $120 – $240 installed. The range comes down to three things: door width (a 16-foot double door uses twice the rubber of an 8-footer), seal profile (standard T-style is less expensive than the bubble style), and whether the aluminum retainer channel itself is damaged and needs replacement. That retainer is a separate piece and costs a bit more.
Every quote includes the part, the labor, removal of the old seal, cleaning of the retainer channel, and proper trimming at both ends. The price we quote is the price you pay – we hand you a written number before any work starts, and it doesn’t move after we begin. The work is covered by our 365-Day Done Right Promise. If the seal fails within a year, we come back and make it right at no charge. No fine print, no prorating.
See the difference
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AfterDIY or Call Us?
Replacing a T-style bottom seal is one of the more approachable garage door fixes, but it has a couple of San Antonio-specific gotchas. First: the old seal often welds itself into the channel from heat and dirt, and getting it out without damaging the aluminum retainer takes patience and the right tools. Second: getting the new seal fed evenly across a 16-foot door without kinking it is a two-person job in practice. Third: trimming it too short means starting over with a new length.
If you’re comfortable with basic hand tools and your retainer is in good shape, you can try it. If the channel is bent, the door sits unevenly, or the old seal won’t budge, that’s when we’d step in. We carry the common Craftsman profiles on the truck, so we can usually tell you the exact price on the phone and complete the swap the same visit. Call (361) 314-2738 and describe what you’re seeing. Generally, the sooner you fix the seal, the less water and heat damage you’ll deal with later.
FAQs
In San Antonio’s heat and UV exposure, a bottom seal lasts roughly 3 to 5 years before it starts cracking or compressing. South- and west-facing doors wear out faster. If yours is older than that and showing gaps, it’s due.
No. Once the rubber tears or compresses, patching doesn’t work. The seal is a consumable part, like wiper blades. We replace the full length so the door seals evenly across the entire width.
Most Craftsman weather seal replacements take 30 to 60 minutes on site. That includes removing the old seal, cleaning the retainer, installing the new seal, and trimming both ends. It’s a single-visit job in almost every case.
We stock the common Craftsman T-style and bubble seals in the standard San Antonio door widths on our trucks. If your door needs an unusual size or profile, we can usually have it ready within a day or two.
Get Your Free Estimate
If your Craftsman garage door is leaking water, letting in dust, or showing daylight at the bottom, call us at (361) 314-2738 for a free estimate. We’ll tell you what seal your door needs, what it costs, and when we can get it done. You’ll get a written price before we start and the 365-Day Done Right Promise backing the work.
Written by Jaylen Ross, Owner, Marlow Garage Door Repair San Antonio at Marlow Garage Door Repair San Antonio, serving San Antonio and nearby areas.