Replace Garage Door Weather Seal
Why It Matters
A worn garage door seal lets in rain, cold air, leaves, and pests. A new seal improves insulation and keeps your garage clean.
Quick Guide
- 1
Gather your tools and materials
You'll need: Pliers, Screwdriver. Materials required: Garage door bottom seal, Side weatherstripping.
- 2
Perform the replace garage door weather seal
Remove old bottom seal and side weatherstripping on garage door and install new seals.
- 3
Verify and clean up
Check that the work was completed correctly and clean up your workspace.
Tools & Materials
Tools
- Pliers
- Screwdriver
Materials
- Garage door bottom seal
- Side weatherstripping
Community Tips
Measure the garage door opening in three places (top, middle, bottom) before ordering replacement seals, as openings often vary by half an inch due to foundation settling—mismatched seals leave gaps that compromise energy efficiency. Wiley Electronics Garage Door Bottom Seal ($25-40) accommodates standard 7-9 foot doors but requires accurate measurements to ensure proper overlap and compression against the door.
Never force side weatherstripping into place by over-tightening fasteners, as compression beyond the material's design tolerance causes permanent deformation and reduces the seal's lifespan by up to 50%. Most residential strips (like Clopay Side Seal kits, $15-25) are engineered for hand-tight installation only and should create light resistance when the door closes.
Replacing bottom seals during mild weather (50-70°F) ensures proper adhesion if the product uses pressure-sensitive backing, whereas cold temperatures prevent the seal from setting completely and result in early separation. A standard replacement takes 45-90 minutes for an experienced homeowner, but budgeting two hours prevents rushing installation steps that directly impact weatherproofing performance. ---