

Repairs · Woodbine Gardens
Garage Door Perimeter Weatherstrip in Woodbine Gardens
Every time the door closes there is a rubbing squeal along one side, and the flexible fin has folded under itself and torn.
In plain words
Around a garage door there are three seals: one on the bottom edge of the door, and two running up the sides and across the top of the opening. Those last two are the perimeter weatherstrip. They are fixed to the stop moulding on the jambs and header, and their flexible fin rests against the door face when it is closed, closing the gap between door and frame. Replacing them means fitting new lengths that meet the door evenly, cutting down how much wind, driven snow, dust, leaves and small animals get through. The bottom seal is handled as its own job, but the two are often done together.
How the visit goesThe 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.
Garage Door Perimeter Weatherstrip
How the visit goes


The corners and the meeting with the bottom seal
Gaps like to live where pieces meet. The technician looks at both top corners, where the header seal and the side seals should overlap so there is no square hole, and at both bottom corners, where the side seal should run right down to meet the bottom seal on the door. Mouse droppings, leaves and a small drift of snow in one corner are common finds and point to exactly which joint has opened. The bottom seal itself is noted; it is a separate part of the door, but if it is flattened or torn the household is told so both can be renewed in one visit if they wish.
Setting the fin against the door
Getting the fin's contact right is the heart of the work. The technician holds each length against the closed door and adjusts it until the fin bends toward the door just enough to seal without pushing back. A fin set too far off leaves a standing gap that shows as daylight; one set too hard drags the door, folds under on the way down and wears through well before its time. Contact is checked at several points along each side, since a jamb is rarely dead straight, and the fastener positions follow the door face rather than the wood behind it.
A note of what was fitted
Before leaving, the technician tells you what went on: the seal type, the profile and fin width, the colour, and the lengths of the header and sides. It is worth writing this on a card near the opener or in the door's paperwork. If one length is ever damaged, by a ladder or a car mirror, the same profile can be matched and a single piece replaced rather than the whole set. If a jamb was repaired, the note records where and with what, so anyone painting or working on the frame later knows what is behind the finish.
Garage Door Perimeter Weatherstrip
In the van
Exterior screws and weatherproof staples
Vinyl stop moulding with integral seal
Jamb repair lumber or PVC trim
Exterior caulking and gun
Utility knife and mitre saw

Garage Door Perimeter Weatherstrip
What affects the quote
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.
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.
Trim, brickmould and caulking
Re-caulking the joint between stop and trim, or dressing capping that channels water down the jamb, is small work done while the surface is bare and is listed on its own line.
What to have ready
- Where do you see daylight, drafts or snow: sides, top, or corners?
- Does the door rub or catch on the seal when it moves?
- Is it a single or double door, and roughly how wide and tall?
Garage Door Perimeter Weatherstrip: questions
QuestionsThe 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.
Why should the seal only touch the door lightly?
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.
Why is there daylight on one side but not the other?
It can be either. Worn rollers, a track bracket that has shifted or a top section that bows can move the door face toward one jamb and away from the other, and a seal that is damaged, shrunk, the wrong size or set slightly off the door face shows the same way. The technician checks both the door's alignment and the seal itself, corrects what is out of true, then fits the new seal to a door that closes evenly.
