Why Is My Garage Door Leaking Air? Weather Stripping & Seals in Gervais
2026-07-13 7 min read
In our years serving Gervais, we've seen this problem again and again: homeowners feel cold air pouring around their garage door, yet they don't realize a worn bottom seal or threshold is the culprit. The good news is straightforward. Weather stripping and seals are affordable repairs that stop drafts, lower utility bills, and protect your garage from moisture and pests.
What Causes Air Leaks Around Your Garage Door
Your garage door sits in a frame that's exposed to Oregon's weather year-round. Over time, rubber seals crack, compress, and shrink. The bottom seal takes the worst beating because it flexes every time the door opens and closes. Weathering, UV exposure, and cold temperatures make rubber brittle. Even small gaps let heated air escape in winter and allow humid air inside during wet months.
A worn threshold is equally problematic. This is the horizontal seal running along the ground where the door meets the concrete floor. When it deteriorates, water pools beneath the door, and cold drafts find their way into your garage and adjacent living spaces.
Most homeowners don't notice the problem until they see their heating bill spike or notice condensation forming on garage walls. By then, the damage has been happening for months.
How Weather Stripping & Seals Protect Your Home
Quality weather stripping creates a tight seal that does three critical jobs. First, it prevents heated air from escaping during cold months. Second, it blocks moisture and rain from entering, which protects your door's hardware and foundation. Third, it keeps pests and insects from finding their way inside.
The cost of replacing worn seals is far lower than the energy waste they allow. A single season of heating loss can exceed the price of new seals. Beyond the financial argument, proper sealing protects the structural integrity of your garage. Water infiltration leads to rust on springs, corrosion of brackets, and wood rot on framing.
Different seal types suit different needs. The bottom seal handles the most stress and should be heavy-duty rubber. Side seals prevent lateral drafts. Top seals stop water from running down the door face into the threshold. Each plays a role in your garage's weathertightness.
**Need weather stripping & seals in Gervais today?** Call (971) 363-3466. we cover same-day service across the area.
Signs Your Seals Need Replacement
Watch for these warning signs. Cold air flowing into your garage on windy days, visible cracks or gaps in existing seals, water stains on the concrete floor near the door, or pest droppings inside the garage all point to seal failure. You might also notice your garage is noticeably colder than it should be, even with the door closed.
If your door is more than 10 years old, the seals have likely degraded regardless of visible damage. Rubber degrades from the inside out. A seal that looks fine from a distance may be brittle and ineffective.
The best time to replace seals is before winter arrives in the Pacific Northwest. Spring and early summer work too, but addressing the issue in fall prevents months of wasted energy. We recommend having your seals inspected as part of your annual garage door maintenance routine.
Getting a Same-Day Estimate in Gervais
The cost of weather stripping and seal replacement varies based on your door's condition and which seals need work. A bottom seal replacement typically costs less than replacing all four perimeter seals. Our team can provide a detailed estimate after inspecting your door.
We don't believe in surprising customers with hidden charges. When you call for an estimate, we explain what needs fixing, why, and what the job will cost. Most seal replacements can be completed the same day, so you're not left vulnerable to weather or pests.
Check our detailed weather stripping and seals replacement cost guide for Gervais to understand typical pricing in your area. If you're considering a full door replacement instead, read about when to replace your garage door to weigh your options.
For additional weatherproofing strategies, explore our full range of garage door services to see what else might improve your garage's performance.
Don't Wait Until Winter Hits
A garage with failing seals bleeds money every month. The problem only worsens as weather gets colder and wetter. Scheduling a same-day inspection now means you'll have a tight, protected garage before the season changes.
Garage Door Gervais has been helping homeowners solve this exact problem for years. We use quality materials and take pride in finishing the job right the first time. Schedule a free quote today by calling (971) 363-3466 or filling out our contact form.
Frequently Asked Questions
How long do garage door seals last? Quality rubber seals typically last 5 to 8 years depending on climate and door use frequency. Oregon's wet weather can shorten this timeframe. Inspect seals annually as part of your maintenance routine.
Can I replace weather stripping myself? Basic side seals can be a DIY project, but bottom seals require proper alignment to function correctly. Mistakes lead to water damage and continued drafts. Professional installation ensures the seal works as designed.
What's the difference between a bottom seal and a threshold? The bottom seal is the rubber strip attached to the door's bottom edge. The threshold is the permanent frame piece on the floor. Both are necessary for a complete weatherproof barrier.
Will new seals help with my heating bill? Yes. A single-car garage with failing seals can waste 15 to 25 percent of heated air during winter. New seals typically pay for themselves within one heating season.
Do I need to replace all seals at once? Not always. We assess each seal independently during inspection. Sometimes only the bottom seal needs replacement, while other times all perimeter seals are compromised. We'll recommend the most cost-effective approach for your door.