The weather seals on a garage door are the quiet workhorses. They keep out dirt, water, leaves, pests, and a surprising amount of heat loss. In Las Vegas, they also take more abuse than almost anywhere else in the country, because the combination of UV exposure, extreme summer heat, and monsoon humidity eats rubber and vinyl faster than it does in milder climates.
The Quick Check: Can You See Daylight Under the Door?
Stand inside your closed garage with the lights off. If you can see a line of daylight along the bottom of the door or around the perimeter, your seals have failed or are failing. That daylight gap is also how dust, heat, water, and pests get in. It is the simplest, most reliable signal that seal replacement is due.
Types of Weather Seals
Bottom seal. The long rubber or vinyl strip on the bottom edge of the door that presses against the concrete when the door closes. This is the most commonly replaced seal because it takes the most abuse, especially in Vegas where heat and UV crack and harden the rubber.
Perimeter seals. The flexible vinyl or rubber strips that run along the sides and top of the door opening. These seal the gap between the door edge and the jamb. They crack, peel, and fall away from the jamb over time.
Threshold seal. An optional rubber strip bonded to the concrete floor where the door lands. A threshold seal improves the seal against uneven concrete and stops water intrusion during monsoon storms. We install these on existing doors as a retrofit.
Why Standard Rubber Seals Fail Faster in Las Vegas
Garage door seals in mild climates typically last 15+ years. In Las Vegas, most bottom seals need replacement at 5 to 8 years, and perimeter seals at 6 to 10 years. The reason is simple physics. UV breaks down the polymer. Heat cycling cracks it. The combination of hot dry summers and monsoon humidity hardens and splits the material two to three times faster than in mild climates.
If you are replacing seals for the second time in 10 years on a garage door, that is completely normal for the Vegas market and not a sign of a defective product.
The Silicone Upgrade Worth Asking About
Most garage doors come standard with EPDM rubber or PVC vinyl seals. In Vegas, we often recommend upgrading to silicone seals on replacement jobs. Silicone resists UV breakdown significantly better than standard rubber, stays flexible across the extreme Las Vegas temperature swing (you can go from 40°F winter mornings to 115°F summer afternoons), and typically lasts 10+ years even in full south and west facing exposure.
The cost delta is modest. The service life gain is large. Not every seal job needs the silicone upgrade, but for high exposure installs, it is usually worth the incremental cost. We quote both options and let you decide.
See our blog post on Las Vegas heat and garage door damage for more on the climate factor.
What We Do on a Seal Replacement Call
We inspect all three seal locations, identify which need replacement, match the seal profile to your door (T-style, U-style, bulb, brush, etc.), and swap them. Most calls are single visit same day. For threshold seals we include the concrete prep, adhesive, and trimming. Where applicable, we offer the silicone upgrade alongside the standard replacement option.
Pricing
Seal replacement pricing in Las Vegas typically falls in these ranges:
- Bottom seal replacement: typically $175 to $300 depending on door width and material
- Perimeter seal replacement (all three sides): typically $300 to $475
- Threshold seal retrofit: typically $200 to $350
- Silicone upgrade: typically adds 20 to 40 percent to the seal material cost
We always quote the full price before the work starts, and we walk through standard versus silicone options so you can decide.
If door insulation is on your list, see new garage door installation.