2026-04-23 7 min read
If you've noticed cold air sneaking under your garage door or water pooling during our coastal Lomita rains, your weather stripping and seals are probably failing. These rubber strips and threshold seals protect your garage from drafts, moisture, pests, and energy waste.and they wear out faster than most homeowners realize.
Your garage door isn't just a barrier.it's part of your home's thermal envelope. A compromised bottom seal or worn side stripping can cost you hundreds in wasted heating and cooling. In Lomita and nearby communities along the coast, salt air and humidity make this problem worse.
Here's what these components actually do:
- Bottom seal stops water and pests at the threshold - Side seals prevent drafts along the left and right edges - Top seal blocks air leakage where the door meets the frame - Threshold creates a physical barrier on the concrete floor
Without them, you're paying to condition air that escapes the moment your door opens. Over time, UV exposure, temperature swings, and moisture degrade rubber. Most weather stripping lasts 3,5 years before needing replacement.
Don't wait for visible damage. Watch for these red flags:
- Visible gaps between the door and frame - Water pooling inside after rain - Drafts you can feel with your hand - Rodent droppings near the threshold - Cracked or hardened rubber that no longer flexes - Increased energy bills with no other explanation
If your garage door is over five years old and you've never replaced the seals, they're definitely overdue. We see this constantly in Lomita homes that face regular coastal weather exposure.
**Need weather stripping & seals in Lomita today?** Call 424-377-6885. we cover same-day service across the area.
Here's what you need to know: weather stripping replacement is one of the most affordable garage door repairs you'll make. Most bottom seal and threshold replacements run $150,$350, depending on your door type and condition.
Why the range? Some doors use standard rubber strips (cheaper). Others require custom-fit seals or have underlying frame issues that need addressing first. That's why we always provide a free estimate before starting work. No surprises. No hidden fees.
Compare that to the cost of water damage ($500+), mold remediation, or replacing your entire garage door ($800,$3,000). A $200 seal replacement is the smart move.
We've written before about garage door spring replacement and other major repairs.this one is genuinely preventative maintenance that saves you money.
Can you replace weather stripping yourself? Sometimes. Simple rubber strips on the sides are straightforward if you're handy. But bottom seals and thresholds require precise alignment. A misaligned seal won't protect you.it'll just look wrong and fail faster.
Professional installation takes 30,60 minutes. We measure twice, install once, and guarantee the fit. If you've already tried a DIY fix and it's not working, we can usually correct it without extra charge.
Our coastal climate means year-round moisture risk. Winter rains are obvious, but summer salt spray and humidity also degrade seals. Spring and fall are ideal times to address this.not an emergency yet, but don't wait until the next storm.
Check your seals today. If you see daylight or feel draft, contact us for a same-day estimate.
New seals should create a snug, weathertight fit. You'll notice:
- No more cold air leaking in winter, Water stays outside during rain, Your garage stays cleaner (fewer dust and pests) - Lower heating and cooling bills
Most customers feel the difference immediately.
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How long do weather seals last? Most rubber weather stripping lasts 3,5 years depending on climate exposure. Coastal Lomita conditions accelerate wear due to salt air and humidity. Annual inspection helps catch deterioration early.
Can I replace just the bottom seal? Yes. Bottom seals are the most critical and wear first. You can replace just the threshold or bottom strip without touching side or top seals, though we recommend inspecting all three while we're there.
What's the difference between a seal and a threshold? A seal is rubber stripping attached to the door or frame. A threshold is the aluminum or rubber bar mounted on the concrete floor that the door closes onto. Both are needed for a complete weather barrier.
How much does weather stripping cost near me? Standard weather stripping replacement in Lomita runs $150,$350. Custom seals or frame repair can cost more. We provide free estimates.call 424-377-6885 for pricing on your specific door.
Will new seals stop water from coming in? Yes, if installed correctly. A proper bottom seal and threshold create a waterproof barrier. However, if your concrete floor is cracked or slopes inward, water may still find a way. We'll assess this during your estimate.