Sound familiar?Greenhill
- The call
- The strip under the door has gone as hard as a hose left out for ten summers. Press it and it does not give; bend it and it cracks. Where the door meets the floor it sits on the concrete without squashing at all.
After a spring rain there is a puddle inside the door that reaches the tires. The driveway slopes toward the garage, the slab has a low corner, and the flattened old seal is not making up the difference.
In plain words
Bottom seals come in a handful of profiles, and the retainer on your door decides which one fits. A T-style seal has T-shaped edges that slide into a single or double channel; a bead seal has rounded edges for the bead channels found on many older steel doors; a bulb or U-style seal is a larger tube that compresses further and suits rough or dished floors. The technician measures the channel spacing and the door width, then picks the profile, height and material to match. A correctly matched seal slides home, stays put through thousands of cycles and closes evenly along its whole length.
Garage Door Bottom Seal Replacement · Greenhill
How the visit goes
Scene 1
The bottom section and its rail
The seal can only be as straight as the edge it hangs from, so the bottom section gets a careful look. On a steel door the technician checks the bottom rail for rust where salt water has sat, dents from a bumper or a shovel, and any bow across the width. On a wood door the rail is checked for rot, cupping and the upturned corners of an old door that has dried unevenly. Fasteners for the retainer and the bottom brackets are checked for corrosion. A sound, straight rail lets a standard seal do its job; a damaged one is pointed out so you can decide on repair, a taller seal, or both.
Scene 2
Closing the door onto the new seal
The clamps come off, the opener is reconnected, and the door is run closed under power while the technician watches the bottom edge meet the floor. The down limit is adjusted so the seal compresses gently along its full length without the section bowing, and the force setting is checked so the door settles onto the new, taller strip without reversing. From inside with the lights off, the floor line is checked again for daylight. The reversing test with a 38 mm (1.5 in) solid object, or a 2x4 laid flat under the door, and the photo-eye test finish the visit, and you are shown the door closing before the ladder is packed.
Scene 3
A record of the profile and size
Before leaving, the technician tells you what went on the door: the seal profile, whether T, bead or bulb, its width and height, the material, the door width it was cut for, and whether the retainer was renewed. Write this on a card by the opener or inside the manual. Bottom seals wear out on a schedule of years rather than decades, and knowing the profile means the next one can be ordered and fitted without measuring from scratch. If a threshold seal was added, its length and type belong on the same card.
In the van
- Bead-style bottom seal
- Silicone spray lubricant
- Wire brush and scraper
- Nail-on vinyl strip for wood doors
- T-style bottom seal
What shapes the quoteOtonabee Garage Door Services
- Door width
- A single door takes a shorter length of seal than a double, and the widest doors need more time to feed the strip evenly across. The quote starts from the width measured on the day.
- Rodent-resistant seal
- A profile with embedded stainless mesh for a garage that has had repeated chewing costs more per length than plain vinyl and is offered where the history calls for it.
- Bottom section repairs
- A rusted, dented or bowed steel bottom rail, or a rotted wood rail, is pointed out and any repair or reinforcement offered as an option beside the seal work.
FeesSame any hour
Frequently asked questions
How do I know which size and type my door takes?
Look at the end of the bottom section for the metal or plastic strip that holds the seal. Count the channels, note whether they are slotted or rounded, and measure the distance between them and the width of the door. A photo of the end of the retainer and one of the seal's cross-section is usually enough for the technician to identify the profile before the visit and bring the right roll.
Does the opener need adjusting after the seal is changed?
Usually, yes. A new seal is taller than the flattened one it replaces, so the door reaches the floor sooner. Left alone, the opener either presses too hard and bows the bottom section or senses the resistance and reverses. The technician resets the down limit so the seal compresses gently, checks the force, and runs the reversing test with a 38 mm (1.5 in) solid object or a 2x4 laid flat under the door so the safety features still behave as they should.
What is a threshold seal, and when is it worth adding?
A threshold seal is a rubber or aluminum-backed strip glued to the garage floor along the line where the door closes. The door's bottom seal lands on it, and its raised outer edge turns water, wind-blown debris and small visitors back toward the driveway. It earns its place where the drive slopes toward the garage, the slab sits below the apron, or the floor edge is too uneven for the bottom seal alone to meet cleanly.
Repair & Maintenance
- Garage Door Tune-UpTwice this week the door started closing, stopped a metre from the floor and reopened on its own.
- Off-Track Garage Door ResetYour car is inside and the door is stuck crooked across the opening.
- Garage Door Panel ReplacementThe top section has developed a bend where the opener arm pulls on it.
- Garage Door Perimeter WeatherstripThe vinyl strip around the door used to be soft and white.
- Garage Door Manual Lock RepairThe T-shaped handle on the outside turns a full quarter, exactly as it has for twenty years, but nothing moves behind it.
Greenhillinformation
PeterboroughOntario
Garage Door Bottom Seal Replacement · Peterborough, Cavan Monaghan, Otonabee-South Monaghan, Ashburnham, Byersville, Claraday, Coldsprings, Collison Heights, Downers Corners, Jackson Heights, Kawartha Heights, Westmount
- Town
- Greenhill, Peterborough
- In business
- 23 years
- Hours
- Open 24/7
- Nights, weekends and holidays, same fees
- Phone
- (249) 494-2181
- Visits
- On-site assessment preferred. Request a visit or call.
2021 census: what it means at the door
Every square is one home in a hundred.
- 64 in 100 homes · older homes
- 57 in 100 homes · mixed housing
- About 64% of homes in Peterborough were built in 1980 or earlier, according to the 2021 Census.Wiring in an older garage may be a single outlet on the ceiling shared with the light, so a new opener is chosen with that in mind, and a battery backup covers the door during a power cut. The technician looks at the outlet before recommending a unit.
- Single-detached houses make up about 57% of homes in Peterborough (2021 Census).In areas mixing houses with townhouses and condos, a technician often works on several doors on one street, some owned outright and some looked after by management. Scheduling them together saves everyone time, and we are glad to plan a visit that covers the group.
Nearby
On-site assessment
Request a visit.
After a spring rain there is a puddle inside the door that reaches the tires.
(249) 494-2181, open 24/7.