2026-06-18 A2Z Garage Doors
Weather stripping and seals stop drafts, pests, and water damage before they start. The bottom seal wears fastest because it takes the full weight of your garage door plus constant friction from the concrete threshold below. If yours is cracked, compressed, or missing chunks, you're bleeding energy and inviting rodents inside. Let's cut through the confusion and show you exactly what to inspect and when to call for help.
Your garage door's bottom seal is not a luxury. It's a barrier between your home and the outside world. Every single day, that rubber or vinyl strip flexes thousands of times as the door opens and closes. Lake Oswego winters bring cold, wet weather that accelerates deterioration. The seal compresses under the door's weight, hardens in freezing temperatures, and eventually splits or peels away from the frame.
I've walked into garages where homeowners didn't realize their bottom seal had separated completely. Water pooled on the concrete. Spiders nested in the gap. Moisture crept into the walls. By the time they called, the damage extended far beyond the garage door itself. The cost of repairs jumped from a simple seal replacement to addressing mold and structural issues.
The bottom seal typically lasts 5 to 7 years with normal use. If you live in a rainy area near Portland or have extreme temperature swings, expect closer to 5 years. Side and top seals last longer because they don't bear as much load, but they still degrade over time.
Walk to your garage and close the door completely. Look for visible cracks, gaps, or flattened sections along the bottom. Press your hand against the seal. It should feel firm but slightly springy, not rock hard or squishy. On a sunny day, stand inside your garage and look for light streaming under the door. Any visible gap means a draft is flowing through.
Check the threshold too. That metal or rubber strip on the concrete where the door rests should be clean and free of debris. Dirt and gravel wedge under the seal and prevent a tight fit. If you see water stains on the concrete or notice a draft problem getting worse, schedule an inspection before the next rain cycle hits.
Side seals matter as much as the bottom. They prevent wind and water from entering through the sides of the door. If your side seals are compressed or missing, you're losing conditioned air and creating spots where pests can squeeze through.
**Need weather stripping and seals in Lake Oswego today?** Call (971) 343-8987 for same-day service and a free estimate on replacement costs.
A basic bottom seal replacement runs between $150 and $300 for materials and labor, depending on your door size and seal type. Side seals add another $100 to $150 per side. Top seals usually cost $75 to $125. Total cost for a complete seal refresh on a standard two-car garage door ranges from $350 to $600.
The good news: this is one of the cheapest preventive repairs you can make. Replacing seals now saves thousands in energy bills, pest control, and water damage cleanup over the next five years. Most jobs take under two hours. If you're on the fence about the expense, think about the cost of treating a mouse infestation or fixing water damage in your walls.
Garage Door Lake Oswego offers same-day estimates so you can make a decision without guessing. We inspect all four sides and the threshold, then give you a clear breakdown of what needs replacement and why. Many homeowners bundle seal work with other maintenance tasks, which spreads the service call cost across multiple repairs.
You can replace a bottom seal yourself if you're handy and have basic tools. The seal slides out of a channel and a new one slides in. Sounds simple, but here's where I've seen people struggle: the channel can be bent, the old seal leaves residue that prevents a tight fit, and if you don't compress the new seal evenly, you'll have an uneven fit that lets drafts through.
Professional installation ensures the seal is compressed uniformly and seated correctly. We also inspect the frame and door alignment while we're there. A misaligned door will destroy a new seal in weeks, no matter how good the replacement is.
Ready to stop the drafts? Schedule a free quote for weather stripping and seal replacement near you. We'll inspect your entire door system and tell you exactly what's needed.
What's the difference between a bottom seal and a threshold? The bottom seal (or weather stripping) is the rubber or vinyl strip attached to the bottom of the door itself. The threshold is the metal or rubber strip anchored to the concrete floor. Both must be in good condition for a tight fit. Water damage often starts when the threshold is cracked or the seal no longer compresses against it properly.
How often should I replace weather stripping? Most seals last 5 to 7 years. Check yours every year in spring and fall. If you see cracks, compression, or gaps, don't wait for the next seasonal change. Damaged seals let in water and pests immediately, not eventually. Replacing them sooner saves bigger repair bills later.
Can I use caulk instead of replacing the seal? Caulk is a temporary patch, not a solution. It doesn't flex with the door's movement, cracks within months, and doesn't provide the compression needed to block wind and water. Always replace the actual seal for lasting protection and proper function.
Does weather stripping affect my garage door's safety? Indirectly, yes. A worn seal can let debris accumulate under the door, which interferes with the safety sensors. Proper seals also keep moisture out, which prevents rust and corrosion that can damage springs and hardware. Check out our full guide on garage door safety in Lake Oswego for more details.
How do I know if my seal needs replacement or just cleaning? Dirt and debris can make a good seal look bad. Clean the threshold and seal with a damp cloth first. If it still shows cracks or doesn't compress when you press it, replacement is the answer. Our team offers free estimates to give you a definitive answer without cost.