
Plan ahead Repairs · Mississauga
Garage Door Perimeter Weatherstrip
The bedroom over the garage is always the cold room, and standing in the garage you can feel why: a steady draft along the door edges that moves the cobwebs on the wall. The seal around the opening has flattened to nothing.
Call now · open 24/7(289) 724-1791In plain words
The job follows a steady order. First the door is closed and the gaps are found from inside, by daylight and by feel. Then the door itself is checked for how it sits in the opening, since a seal only works against a door that is square to the frame. The jambs and header are inspected for rot and for how the old strip is fixed. The old material comes off, the surface is cleaned and repaired where needed, the header piece is fitted first and the sides after it, and the door is cycled several times to confirm nothing catches. You are shown the result with the lights off.
How the visit goesA length of weatherstrip along the right jamb has pulled away, nails and all, and it slaps against the trim every time the wind picks up. The wood behind it is dark and soft where it meets the floor.
Garage Door Perimeter Weatherstrip · Mississauga
How the visit goes

- 1
What has been getting in, and what the garage is for
A short conversation shapes the rest of the visit. Is the garage attached and heated, or a detached shell? Has snow, water, leaves or an animal been coming in, and where? Is the door used several times a day or once a week? Was the door itself replaced or adjusted recently? A heated garage under a bedroom justifies a full one-piece stop and careful corners; a detached garage used for storage may want a straightforward fin replacement. Knowing what the household has noticed also tells the technician which side to test first and whether a section of jamb has been wet for a long time.
- 2
Fitting the sides and closing the corners
Each side length is cut to run from tight under the header piece down to the floor, with a little spare to trim in place. It is set with the same light contact as the header and fastened top to bottom. At the top corner, the side fin tucks under the header fin so they overlap, leaving no square hole for drafts or mice. At the floor the side is trimmed to meet the bottom seal on the door, so the seal is continuous around three sides and hands off to the fourth. Both sides are done the same way, checking the door edge gap as they go.
- 3
A look round each season
The simplest care is a glance four times a year. Close the door, switch off the lights and look along both sides and the header for daylight. Then step outside and check that no length has lifted, that the corners are still tucked together and that the fin is still soft when you press it with a thumb. Cracks, a hard grey surface or a piece that has shrunk back from the door are the early signs. Manufacturers suggest wiping the seal down with a damp cloth a few times a year, and that also lets you feel any change in it.
In the van
- Flat bar, hammer and nail set
- Exterior caulking and gun
- Exterior screws and weatherproof staples
- Utility knife and mitre saw
- Tape measure, level and square
What affects the quote
- 1
Size of the door
A double door has a longer header and the same two sides as a single, so more material and a two-person lift for the top piece; taller openings take longer side lengths.
- 2
Fin on the existing stop or a one-piece vinyl stop
Nailing a new fin to a sound wood stop uses less material than replacing the stop with a one-piece vinyl moulding, which costs more as a part but needs no paint and does not rot.
- 3
Adding a brush or foam seal to the sides as well as the stop
Some households want only the top and side stop replaced, while others add a brush or foam seal along the same run for a tighter fit against wind-driven snow. That extra material and the time to fit it are agreed before the old stop comes off.
Same fees day, night or weekend.
Garage Door Perimeter Weatherstrip: questions
The wood around my door is rotten near the floor. Can the seal still go on?
Yes, and the rot is handled first. The soft wood at the base of the jamb is cut back to sound material and a new piece of lumber or PVC trim is spliced in, fixed and primed, so the fasteners for the new stop bite into something solid. This is one of the most common additions to a perimeter seal job here, because slush and salt sit against the jamb base all winter.
Will replacing the perimeter seal keep mice out?
It closes one of their favourite routes. Mice enter at the open corners where the header and side seals meet and along a fin that has shrunk back from the door, so a continuous, overlapped seal removes those gaps. It works alongside a sound bottom seal, a swept threshold and attention to any other openings in the garage wall, and a technician will point out any of those noticed during the visit.
Can I paint the new seal to match my trim?
Paint the rigid parts only. A wood stop can be painted before the fin is fitted or with the fin masked, and a vinyl stop needs no paint at all. The flexible fin is left bare, because paint fills it and stiffens it, and a stiff fin cracks well before its time once cold weather sets in. Seals come in a range of colours so the fin can match the trim without a brush.
Repair & Maintenance
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Garage Door Perimeter Weatherstrip near you
Peel, Ontario
Mississauga information
- Town
- Mississauga, Peel, Ontario
- In business
- 17 years
- Hours
- Open 24/7 · nights, weekends and holidays, same fees
- Phone
- (289) 724-1791
- Visits
- On-site assessment preferred. Request a visit or call.
What the census means at the door
38%
Homes of every age. About 38% of homes in Mississauga were built in 1980 or earlier, according to the 2021 Census.
A mixed-age neighbourhood is where retrofits are most common: safety cables added to extension springs, a torsion conversion on an older door, insulated panels replacing a hollow door, or a quieter belt opener under a newly finished room above the garage. Each is a routine job for us.
37%
Single-detached houses make up about 37% of homes in Mississauga (2021 Census).
In condominium communities the outward appearance of a garage door is often set by the corporation's rules, down to colour and panel style. We check what the board expects before ordering a replacement door, so the new one is approved and matches the row without a second conversation.
Open 24/7
Request a visit
The bedroom over the garage is always the cold room, and standing in the garage you can feel why: a steady draft along the door edges that moves the cobwebs on the wall.
Call now · open 24/7(289) 724-1791- On-site assessment preferred
- Same fees day, night or weekend
- 17 years in business