Complete Guide to Garage Door Weatherstripping and Seals
November 30, 2023 6 min read
# Complete Guide to Garage Door Weatherstripping and Seals
Weatherstripping might seem like a minor component of your garage door system, but it plays a crucial role in keeping your garage comfortable and protected. Damaged or worn seals can lead to water intrusion, pest problems, energy loss, and debris accumulation.
Types of Garage Door Seals
Bottom Seal (Astragal)
This is the most critical seal, running along the bottom of the door. It: - Creates a barrier against water, leaves, and pests, Compensates for uneven concrete floors, Takes the most abuse from daily use
Common types: - T-style: Fits into a retainer channel on the door bottom - Bulb seal: Round shape provides good compression - Beaded seal: Slides into a track - Threshold seal: Attaches to the floor instead of the door
Side Seals (Jamb Seals)
These vertical seals run along both sides of the door frame, sealing the gap between the door edge and the frame. They help prevent: - Wind-driven rain from entering, Drafts and energy loss, Pest intrusion
Top Seal (Header Seal)
Located at the top of the door opening, this seal closes the gap between the top panel and the frame. Often overlooked but important for complete protection.
Panel Seals
Between each horizontal section of the door, small seals prevent air and water infiltration. These are especially important on older doors.
Signs Your Seals Need Replacement
Watch for these warning signs: 1. Visible daylight around door edges 2. Water intrusion after rain 3. Increased energy bills (lost heating/cooling) 4. Pests getting inside (insects, mice, lizards) 5. Debris accumulation inside the garage 6. Cracked, brittle, or flattened seal material 7. Door not closing flush against the floor
DIY Seal Replacement
The bottom seal is relatively easy to replace:
Tools Needed:
- New seal (measure your door width) - Flat-head screwdriver, Pliers, Soap and water solution, Lubricant (for track-style seals)
Steps:
1. Open the garage door fully 2. Remove the old seal from the retainer or track 3. Clean the retainer channel thoroughly 4. Apply lubricant to the channel 5. Slide the new seal into place, starting from one end 6. Trim excess material if necessary 7. Test by closing the door on a level surface
When to Call a Professional
Consider professional installation if: - You're uncomfortable working with garage door components, The door has structural issues affecting seal fit, Multiple seals need replacement, You want a complete weatherproofing assessment
Maintenance Tips
Extend the life of your weatherstripping: 1. Clean seals regularly with soap and water 2. Apply silicone lubricant annually 3. Check for damage during seasonal maintenance 4. Keep the garage floor clean near the door bottom 5. Address alignment issues promptly
Complete Weatherproofing Package
For comprehensive protection, consider our weatherproofing service that includes: - Complete seal assessment, All seals replaced as needed, Door balance check, Track and roller inspection, Lubrication of all moving parts
Contact Garage Door Coronado today to schedule a weatherproofing inspection.