Weather Stripping & Seals in Candia: Stop Drafts, Pests & Water Damage
2026-04-29 7 min read
A compromised bottom seal or weatherstripping lets cold air, water, and pests into your garage.sometimes all at once. In Candia, where winters drop below freezing and spring brings heavy runoff, this isn't just uncomfortable; it's expensive. Damaged seals cost you heating dollars and invite structural problems that mount quickly.
Why Weather Stripping & Seals Matter in New Hampshire
Candia sits in southern New Hampshire where seasonal swings are brutal. Winter temperatures plummet; spring brings moisture; summer heat tests rubber durability. Your garage door's weather stripping and bottom seal are the only barriers between your garage and the elements.
Here's what I've seen go wrong: homeowners ignore a small draft in October. By January, water has pooled inside. By March, mice have moved in. A $150 seal replacement becomes a $2,000 moisture remediation and pest control job.
The threshold.that metal or rubber strip at the base of your door.takes the most punishment. Every time your door cycles, it compresses and rebounds. Ice buildup in winter can force it out of alignment. Summer UV exposure hardens rubber seals faster than most people realize; seals typically last 5-7 years before they crack and stop sealing properly.
Common Signs Your Seals Need Replacement
Visible cracks or gaps. If you see daylight around the edges or bottom of your door, your seals aren't doing their job.
Drafts and temperature swings. Feel cold air rushing into your garage on a winter morning? That's a draft, and it means your heating is escaping.
Water pooling inside after rain. This is your urgent red flag. Water inside the garage leads to mold, rust on tools, and structural rot.
Pest activity. Rodents and insects exploit tiny gaps. Once they're in, they're hard to evict.
Visible deterioration. Rubber that's cracked, shrunken, or peeling is past its useful life.
If you've experienced a garage door that won't open, cold weather is often the culprit.and damaged seals make it worse by allowing moisture to freeze the tracks.
**Need weather stripping & seals in Candia today?** Call (978) 481-4415. we cover same-day service across the area.
Types of Weather Stripping & Seals
Bottom seals (also called sweep seals) attach to the bottom of your door and compress against the threshold. They're the most critical seal and the first to fail.
Side seals run along both vertical edges and prevent drafts from the sides. They're often overlooked but essential in Candia's windy seasons.
Top seals sit above the door frame where it meets the garage opening. They stop water from running down behind your door.
Threshold seals are the stationary part.the metal or rubber strip on your driveway that the bottom seal compresses against. A bent or worn threshold reduces your bottom seal's effectiveness.
Not all seals are created equal. Budget rubber seals cost less but harden faster in New England winters. Reinforced vinyl and EPDM rubber hold up longer.typically 7-9 years versus 4-5 years for basic rubber. The cost difference is modest, and durability matters when you're dealing with Candia's freeze-thaw cycles.
The Real Cost of Ignoring Damaged Seals
Water damage is silent and expensive. One winter of uncontrolled moisture can rot wooden framing, rust metal studs, and create conditions where mold thrives. An estimate for structural repairs runs $3,000,$8,000+.
Pest entry is just as costly. Once rodents nest in your garage, professional removal and exclusion can run $1,500,$3,000. Prevention is always cheaper.
Energy loss adds up. A poor seal can increase your garage heating costs by 15,25% if your garage is conditioned space. Over a heating season, that's $300,$600 wasted.
Compare that to a weather stripping and seal replacement. A complete bottom seal, side seals, and threshold repair typically runs $400,$800 for materials and labor. Same-day service is available, so you don't lose protection over multiple days.
How to Get the Right Seal for Your Door
Not every garage door uses the same seal profile. Older doors (pre-2000) often have different dimensions than modern doors. The wrong seal won't compress properly and leaves gaps.
Garage Door Candia assesses your specific door type, measures your threshold condition, and recommends seals matched to your frame and climate needs. We also check whether your bottom seal is misaligned.a common issue that makes even new seals ineffective.
For seasonal prep, see our guide on preparing your garage door for summer. Seals are part of that maintenance calendar.
When to Call a Professional
DIY seal replacement is possible if you're handy, but measurement mistakes are common. An incorrectly installed seal won't compress evenly and leaves draft zones. Professional installation ensures full contact across the entire seal surface.
If your threshold is bent or corroded, you may need threshold replacement, not just a new seal. This requires tools and expertise to do safely. Call (978) 481-4415 for a no-cost estimate.
Wrapping Up
Weather stripping and seals protect your garage.and your wallet.from the harsh realities of a New Hampshire winter and wet spring. Candia homeowners who address seal wear before it becomes a problem avoid water damage, pest invasions, and energy waste. A $500 investment today prevents a $5,000 problem next year.
Ready to stop the drafts and seal out the weather? Contact Garage Door Candia today. Call (978) 481-4415 or visit our contact page to book same-day service or request an estimate.
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Frequently Asked Questions
How often should I replace garage door weather stripping? Every 5,7 years in New Hampshire climates. Inspect annually for cracks, hardening, or visible gaps. If you see daylight or feel a draft, don't wait for the next scheduled replacement.
Can I replace weather stripping myself? Yes, if you measure carefully and your door frame is square. Misalignment is common, leading to incomplete sealing. Professional installation ensures proper compression and alignment across the full seal.
What's the difference between a bottom seal and a threshold? The bottom seal is the movable rubber or vinyl strip attached to your door. The threshold is the stationary metal or rubber strip on the ground where the seal compresses. Both must be in good condition for an effective seal.
Why does my garage door stick in winter even after I lubricated the hinges? Cold makes rubber seals stiffer and can allow ice buildup. Check your bottom seal and threshold for frost accumulation. A compromised seal lets moisture in, which freezes and locks the door. See our bearing lubrication guide for seasonal maintenance tips.
How much does weather stripping replacement cost in Candia? Typically $400,$800 for a complete job including bottom seal, side seals, and threshold assessment. Call (978) 481-4415 for a free estimate tailored to your door and condition.