Weather Stripping & Seals in Covina: Stop Drafts and Save Money
7 min read A2Z Garage Doors
If your garage feels drafty or you notice daylight peeking under the door, worn weather stripping and seals are likely the culprit. Replacing them is one of the cheapest preventive fixes you can make, often costing between $150 and $400 for materials and labor. Ignoring this problem wastes energy dollars and lets pests inside.
Why Weather Stripping Fails in Covina
Covina's heat and occasional temperature swings take a real toll on rubber and vinyl seals. UV exposure, dust accumulation, and regular expansion/contraction cause the bottom seal and threshold components to crack, harden, or separate from the door frame. Most homeowners don't notice until they spot visible gaps or feel warm air leaking into the garage during summer.
The bottom seal wears fastest because it bears the most contact with the ground. Over time, it becomes brittle and loses its grip on the threshold. If you've walked into your garage and spotted light streaming under the door, that's a sign the seal needs replacement soon.
Regional temperature swings from inland valleys to coastal areas mean Covina homes experience faster seal degradation than some nearby neighborhoods. What lasts 5 to 7 years in moderate climates may only survive 4 to 5 years here.
What Happens When Seals Wear Out
A failing seal creates more than just an eyesore. Here's what actually costs you money:
Energy Loss. Your air conditioning works overtime to cool a garage that leaks conditioned air. Even a small draft adds 5 to 10 percent to monthly cooling bills during peak summer months.
Pest Entry. Rodents, insects, and spiders love gaps. Once inside, they nest in stored items and can access your home. Pest control visits run $300 to $600.
Water Damage. Rain and sprinkler runoff seep under the door, rotting wood framing and concrete. Replacing a threshold or repairing water damage costs far more than preventive sealing.
Noise. Worn seals let wind and outside noise into the garage. This matters if you've converted it to a workshop or gym.
Check our 5 warning signs your garage door needs professional repair to see if other components are also failing.
Types of Weather Stripping & Seals
Not all seals are identical. Understanding your options helps you pick the right replacement without overspending.
Bottom Seal (Astragal). The rubber strip running along the bottom of the door. It's the most common failure point and easiest to replace yourself if you're handy. Cost: $50 to $150 including labor.
Threshold. The metal or rubber strip at the base of the door frame. It supports the bottom seal and keeps water out. Replacing a threshold runs $100 to $250.
Side and Top Seals. Foam or rubber strips along the frame edges. These prevent draft and pest entry on the sides and top. Cost: $75 to $200 total.
Weatherstripping Tape. Self-adhesive foam strips you apply yourself. Cheapest option at $20 to $40, but lasts only 2 to 3 years in Covina's heat.
For a full breakdown of your garage door's condition, explore our ultimate garage door maintenance checklist for homeowners to identify other wear patterns.
**Need weather stripping and seals in Covina today?** Call 626-612-0540. we cover same-day service and free estimates across the area.
DIY vs. Professional Replacement
You can replace a bottom seal yourself if you're comfortable removing the door frame trim and measuring correctly. The job takes 1 to 2 hours and requires basic tools. However, measuring wrong means a new seal that doesn't fit properly, creating gaps and wasting money.
A professional handles the measurement, removal of old adhesive residue, and proper installation in under an hour. They also inspect the threshold and side seals while they're there, catching problems you might miss. Garage Door Covina technicians often spot frame damage or misalignment that requires attention before new seals go in.
If your door is misaligned or the frame is warped, DIY sealing won't solve the underlying issue. Professional installation includes adjustment and alignment checks, ensuring the seal works as intended.
Cost Breakdown for Covina Homeowners
Here's what you'll actually spend:
| Item | DIY Cost | Professional Cost | |------|----------|------------------| | Bottom seal only | $30-60 | $150-250 | | Bottom seal + threshold | $80-140 | $250-400 | | All seals (sides, top, bottom) | $150-250 | $400-550 | | Emergency/same-day service | N/A | +$50-100 |
Professional estimates are always free. There's no cost to call and ask what your specific door needs.
When to Replace vs. Repair
If seals are cracked, hardened, or pulling away, replacement is your only real option. Patching with caulk or tape buys time but doesn't solve the problem long term. Most seals last 5 to 7 years before replacement is necessary.
Schedule a free quote to discuss your weather stripping and seals with one of our Covina technicians. Same-day appointments are often available, so you can stop the draft this week.
Frequently Asked Questions
How long do garage door seals last? Most weather stripping lasts 5 to 7 years in Covina's climate. Heat and UV exposure accelerate wear. Foam tape varieties wear out faster, typically 2 to 3 years.
Can I replace seals myself? Yes, bottom seals are the easiest DIY project. Measure twice, remove old adhesive thoroughly, and apply the new seal straight. Side and top seals require frame trim removal and are trickier.
What's the difference between a seal and weatherstripping? Seals are thicker, more durable rubber or vinyl strips that press against the door. Weatherstripping is often foam tape that sticks to the frame. Seals last longer.
Will new seals reduce my energy bill? Yes. Sealing gaps prevents air loss, reducing cooling costs by 5 to 10 percent during summer. Savings depend on your door's current condition and local energy rates.
Do I need to replace the threshold too? Not always. A new bottom seal often works fine on an existing threshold. If the threshold is cracked, rusted, or bent, replacement ensures the seal sits flush and works properly.