Weather Stripping & Seals in Union: Stop Drafts Before Winter Hits
2026-08-29 7 min read
Your garage door's weather stripping and seals are the only barrier between your garage and the elements outside. When they fail, cold air rushes in, energy bills spike, and moisture creeps into your home. In Union, where winters bring rain and cold snaps, a compromised bottom seal or deteriorated threshold can cost you hundreds in wasted heat. This post shows you how to spot failing seals before they cause bigger damage.
What Weather Stripping Actually Protects
Weather stripping is more than comfort. It stops rain, drafts, pests, and debris from entering your garage. The bottom seal bears the most stress because it takes direct contact with the concrete floor every time your door opens and closes. Over 5 to 7 years of normal use, rubber hardens, cracks, and separates from the frame.
Most people don't think about their garage door until it stops working. By then, water damage has already started, or your heating system has worked overtime all season. The threshold (the rubber or aluminum strip running along the bottom of the door frame) works alongside the bottom seal to create a continuous barrier.
Signs Your Seals Are Failing
Look for these red flags:
Light visible under the door when it's closed signals a gap. Touch the rubber with your hand. If it feels hard, brittle, or cracked, replacement is overdue. Check for water stains on the concrete inside your garage, especially after rain. Pests like spiders, ants, or rodents entering your garage often mean the seal has gaps.
Cold drafts on your garage floor near the door opening are a classic sign. If your garage feels significantly colder than the rest of your home, your weather stripping may be the culprit. Many homeowners in Union notice this issue in December or January when they're paying the most for heating.
Inspect the bottom seal visually at least twice per year. Push gently on the rubber. It should feel slightly flexible, not rock hard.
**Need weather stripping & seals in Union today?** Call (360) 997-0088. we cover same-day service across the area.
Cost and Replacement Timeline
A basic bottom seal replacement runs between $150 and $300, depending on your door size and material. If the threshold also needs work, add another $100 to $200. Garage Door Union can provide a same-day estimate when you call. The cost varies based on whether you need the seal alone or if frame damage requires additional repair.
Replacement takes one to two hours. The job involves removing the old seal (which is usually glued or screwed on), cleaning the frame thoroughly, and installing a new seal with proper adhesive or fasteners. Some older doors may have a wooden threshold that needs replacement instead of simple rubber stripping.
Waiting months to replace a failing seal costs more money in wasted energy than the repair itself. A draft that lets in cold air forces your furnace to run constantly during winter months. Over a heating season, you could waste $200 to $400 in energy costs while paying just $250 for the fix.
If your garage door is also stuck or difficult to open, check the seals first. A warped or damaged bottom seal can create friction that makes the door harder to operate. We've written a full guide on stuck garage door issues and how weather stripping connects to them.
Preventing Draft Problems Year-Round
Regular maintenance catches small problems before they become expensive. Clean the seal and threshold monthly to remove dirt, leaves, and debris that block a tight fit. In Union's rainy climate, standing water near the door opening can rot rubber seals faster.
Inspect the door frame for rust or corrosion. If the metal is rusted, the seal won't seat properly no matter how new it is. Address frame damage before replacing the seal.
If your garage loses heat fast, insulation and weather stripping work together. Read our post on why your garage door loses heat and how seals play a role for a deeper dive into energy efficiency.
Consider scheduling a garage door tune-up before winter. Our technicians check springs, openers, and weather stripping all at once. Learn how often you should schedule maintenance to keep everything running safely.
What to Do Now
If you've noticed drafts, water stains, or visible gaps under your door, don't wait until January. Temperature swings and moisture damage worsen every week. Schedule a free quote with Garage Door Union and we'll inspect your seals, give you a firm cost estimate, and handle the replacement on the same day if you need it.
Call (360) 997-0088 to speak with a technician who can assess your door in person. We serve Union and surrounding areas with honest pricing and fast service.
Frequently Asked Questions
How long do garage door weather seals last? Most rubber seals last 5 to 7 years before hardening and cracking. Exposure to UV light, temperature swings, and moisture accelerates wear. In Union's wet climate, they may fail sooner if not maintained.
Can I replace weather stripping myself? Yes, but improper installation leaves gaps. The seal must sit flush against the frame with no air pockets. Most homeowners save time and frustration by hiring a professional for a proper fit and guarantee.
What's the difference between a bottom seal and a threshold? The bottom seal is the rubber strip attached to the bottom of the door itself. The threshold is the strip running along the bottom of the door frame. Both work together to create a complete barrier.
Does weather stripping affect my garage door opener? A severely worn seal can make the door harder to open, putting extra strain on the opener motor. Replacing the seal often improves door operation and reduces opener wear.
How much energy do drafty seals waste? A 1/4-inch gap around a garage door can waste 10 to 15 percent of your garage heating energy per month. Over a winter season, that adds up to significant utility bill increases.