7 min read A2Z Garage Doors
A customer called last Tuesday complaining about cold air pouring into her garage every morning. I drove out to her Coronado home, took one look at the bottom seal, and knew exactly what was happening. Her weather stripping had dried out and cracked. It's one of the most common garage door problems I see, and the good news? It's fixable, affordable, and makes a real difference in your home's comfort and energy bills.
Weather stripping and seals are rubber or vinyl strips that run along the edges of your garage door. They close the gaps between the door and the frame, stopping drafts, pests, and water from getting inside. When they fail, you feel it immediately. Your heating or cooling bills climb. Bugs find their way in. Your garage becomes less of a controlled space and more of a wind tunnel.
Our coastal weather is beautiful but brutal on garage doors. Salt air, temperature swings, and intense UV sun age rubber faster than inland climates. I've pulled off seals in San Diego that looked like they'd been baked on a desert highway. The threshold seal (the strip along the bottom) takes the worst beating because it sits closest to the ground, catching debris, moisture, and sun exposure all day long.
If you've noticed drafts coming in around your garage door edges, or if your seals look cracked and hardened, replacement is overdue. Most seals last 5 to 7 years in San Diego. If yours are older, don't wait for total failure.
There are three main types you'll encounter. Side seals run vertically along the left and right edges. Top seals sit along the top. Bottom seals are the most critical and most visible when they fail. Each serves a specific purpose, and you may not need all three replaced at once.
Vinyl seals are the most common and affordable. They typically cost between $150 and $300 for a full set installed. Rubber seals offer better durability and cost a bit more, usually $250 to $400. Threshold seals (the heavy-duty bottom piece) run $100 to $200 on their own. When I give an estimate, I look at which seals are actually damaged rather than just replacing everything. Sometimes only the bottom seal has failed. Other times the side seals are cracked but still functional.
Labor in San Diego ranges from $100 to $200 depending on your door type and condition. Some doors have seals that are glued on (easy removal but messy). Others are fastened with screws (more time consuming). A full replacement job typically takes 1 to 2 hours.
**Need weather stripping & seals in San Diego today?** Call 562-586-4509. we cover same-day service across the area.
You can replace weather stripping yourself if you're handy. Hardware stores sell DIY kits for $30 to $80. The process involves removing old seals (sometimes a scraper and heat gun help), cleaning the frame, and installing new strips with adhesive or fasteners.
But here's what I've learned after 15 years on the trucks. Most homeowners underestimate how much prep work is involved. Leftover adhesive needs to be fully cleaned or new seals won't stick. The frame has to be level and dry. If you're off by even a quarter inch, the seal won't compress evenly and you'll still have drafts.
That's why most people choose professional installation. We measure your door correctly, prep the frame thoroughly, and ensure the seal compresses uniformly. You also get a warranty on the work. If something goes wrong within 30 days, we fix it free.
If you want to explore our full range of weather sealing solutions, check out our services page. And if you'd like a professional assessment of your current seals, schedule a free quote today.
Small cracks in your seals don't always mean replacement is necessary. If the seal is still mostly pliable and only has surface damage, we can sometimes apply a flexible sealant that extends its life another year or two. But if the seal has shrunk, hardened, or separated from the frame, replacement is the only real solution.
For more on keeping your garage door in top shape year-round, see our essential maintenance tips guide. It covers weather stripping alongside other critical maintenance tasks.
November through April is when I get the most seal replacement calls. Cooler nights and morning fog cause rubber to contract. Cracks that were small suddenly open up. If you're seeing drafts now, don't wait until summer. Getting new seals installed in spring means you're protected all year and your cooling costs stay down during our hot months.
Weather stripping and seals are a small investment with big returns. A $250 seal replacement can cut your garage heating and cooling loss by 50 percent. Over a year, that saves money on your energy bill. It also keeps pests out, protects stored items from weather damage, and makes your garage feel like part of your conditioned home.
If you're ready to stop the drafts and improve your garage comfort, give Garage Door San Diego a call at 562-586-4509. We offer same-day estimates and can often install new seals within 24 hours. We serve all of San Diego County, from central neighborhoods to places like Oceanside and El Cajon.
How long do garage door seals last in San Diego? Most seals last 5 to 7 years in our coastal climate. Salt air and UV exposure speed up degradation compared to inland regions. Annual inspections help catch wear early before drafts become a problem.
Can I replace weather stripping myself? Yes, DIY kits are available at hardware stores for $30 to $80. The challenge is proper frame prep and ensuring uniform compression. Professional installation guarantees no drafts and includes a warranty on labor.
What's the difference between side seals and bottom seals? Side seals run vertically and stop horizontal drafts. Bottom seals (also called threshold seals) run along the garage floor and take the most abuse. Bottom seals often need replacement before side seals do.
How much does weather stripping replacement cost in San Diego? A full set of seals typically costs $150 to $400 depending on material and door type. Labor adds $100 to $200. Some jobs only need the bottom seal replaced, bringing total cost closer to $200 to $300.
Will new seals really lower my energy bills? Yes. Seals prevent heated or cooled air from escaping your garage. If your garage is insulated, proper seals can reduce heating and cooling loss by 40 to 50 percent, lowering monthly utility costs noticeably.