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Weatherstripping Failure
in Glendale, AZ
Weatherstripping is the rubber or vinyl seal that runs along the top and sides of the garage door frame. In Glendale, AZ, that material takes a beating because temperatures regularly hit 110 degrees or higher in summer, and UV radiation at this latitude is intense year-round. Cracked or missing weatherstripping sends your cooling bills up and turns your garage into an easy entry point for scorpions, roof rats, and blowing dust.
Quick Answer
Garage door weatherstripping cracks and crumbles in Glendale's heat faster than almost anywhere else in the country. Temperatures over 110 degrees dry out rubber and vinyl seals in two to three years. Replacing the seals along the sides and top of the door frame keeps your garage cooler and keeps out dust and insects. This is a low-cost fix that makes a real difference in a desert climate. Call (928) 404-0934 to have the seals inspected.
Telltale Signs
Warning Signs to Watch For
- You can see daylight around the sides or top of the closed door from inside the garage
- Dust accumulates inside the garage shortly after cleaning it
- The rubber seal along the door frame is visibly cracked, brittle, or missing in sections
- You find scorpions or other insects inside the garage regularly
- The garage feels noticeably hotter than it should even with the door closed
Root Causes
What Causes Weatherstripping Failure?
UV and Heat Degradation
Glendale gets over 300 sunny days per year, and UV rays break down rubber and vinyl weatherstripping from the outside while heat bakes it from the door side. Standard weatherstripping can crack and harden within two to three years under those conditions, far faster than the product is rated for.
The Fix
Weatherstripping Replacement
A technician removes the old cracked seal and installs new weatherstripping rated for high-UV and high-temperature environments. Getting the right material matters in a desert climate — standard hardware-store vinyl won't last long here.
Physical Wear from Door Contact
The seal along the sides of the door frame gets compressed every time the door closes. Over time that repeated compression flattens it out. Once it's flat, it no longer fills the gap between the door and the frame, even if it hasn't cracked yet.
The Fix
Frame Seal and Stop Replacement
The flattened stop seal gets pulled off and replaced with new material that is thick enough to compress against the door panel and still form a complete seal. A technician checks that the door is closing evenly against the frame before calling the job done.
Self-Diagnosis
Which Cause Applies to You?
Check the signs you're observing to narrow down the likely root cause before your inspection.
| What You're Seeing | UV and Heat Degradation | Physical Wear from Door Contact |
|---|---|---|
| Seal is visibly cracked, brittle, or breaking off in pieces | ||
| Seal looks intact but is completely flat with no spring-back when pressed | ||
| Daylight visible along the sides of the closed door from inside | ||
| Seal failure is worse on the south or west face of the door frame | ||
| Gap between door and frame is only on one side |
Free Inspection
Get a Diagnosis in Glendale
An on-site inspection is the only way to confirm which cause applies to your property. Free, no obligation.
(928) 404-0934Free on-site inspection
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