Sound familiar?Applewood Heights
- The call
- The new door went in last year and looks perfect, but the old wooden stop and its tired seal were left in place. Along the top there is a gap you could slide a finger into, and the cold pours through it.

With the door closed and the garage lights off, a thin bright line runs down the whole left side of the opening. You can see the neighbour's fence through it.
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.
Sound familiar?Applewood Heights
Garage Door Perimeter Weatherstrip · Applewood Heights

Scene 1
The first check needs no tools. The door is closed, the garage lights go off, and the technician stands inside looking along each side and across the header for lines of daylight. A bright, even line means the fin has shrunk back or hardened; a wedge that widens toward the top or bottom points to the door sitting out of square; a gap only at a corner means the pieces were never overlapped. On a windy day a hand or a smoke pencil along the edge finds drafts that daylight misses. The pattern of the gaps is what tells the technician whether the seal alone is the answer or whether the door needs a small adjustment first.
Scene 2
Once all three lengths are on, the door is run through several full cycles by hand and then with the opener, while the technician watches each fin for catching, folding or rubbing and listens for a squeal. The daylight test is repeated from inside with the lights off. Any joint between the new stop and the trim or brickmould where water could get behind is caulked with an exterior sealant, and the fin is wiped with a silicone spray to cut the odds of ice bonding it to the door. The old material is bagged and removed, and the household is walked round the finished opening.
Scene 3
The seal was set against the door as it sits today. If the door is later adjusted, has its springs or rollers replaced, or is swapped for a new one, the contact can change: a door that now sits a few millimetres further out presses the fin harder, and one that sits further in leaves a gap. After any such work, do the daylight test again and ask the technician doing that job to check the perimeter seal while they are there. Re-setting a length is a small task and keeps the two parts of the system working together.
What shapes the quoteApplewood Hills Garage Door Co.
FeesSame any hour
The fin is meant to bend against the door with a small, even deflection. That is enough to seal, and it lets the fin spring clear as the door lifts. Pressed hard, it drags on the door face, folds under on the way down, squeals and wears through well before its time, and it adds load to the opener. Set too far off, it leaves a standing gap. The light touch is the setting that lasts.
Move the car out of the garage or well back from the door, and clear anything stored against the jambs inside and any bins, planters or snow piled against them outside. Leave the door closed so the gaps can be seen as they are. If you have noticed where the daylight, drafts or snow come in, or where the mice appear, be ready to point it out.
It can help. Drafts around the garage door cool the garage, and the garage cools the floor above it and the wall it shares with the house. Closing the perimeter cuts those drafts, though how much warmer the garage runs depends on the door's own seal, the ceiling insulation and how the space is heated, not the perimeter alone. A technician can talk through those as separate steps if the room stays cold.
PeelOntario
Garage Door Perimeter Weatherstrip · Mississauga, Applewood Hills, Markland Woods, Orchard Heights
Every square is one home in a hundred.
On-site assessment
With the door closed and the garage lights off, a thin bright line runs down the whole left side of the opening.
(289) 805-3301, open 24/7.
On-site assessment preferred · (289) 805-3301, open 24/7