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Person kneeling with a hand at the base of a gray paneled door that has a black strip along its bottom. — Garage Door Perimeter Weatherstrip, Leckie Park
A person kneels beside the side track and hinges of a closed sectional garage door. — Garage Door Safety Inspection, Leckie Park

Repairs · Leckie Park

Garage Door Perimeter Weatherstrip in Leckie Park

Every time the door closes there is a rubbing squeal along one side, and the flexible fin has folded under itself and torn.

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In plain words

The skill in this job is in the position of the fin. It should touch the door with a small, even deflection, so that it seals when the door is closed and springs clear as the door lifts. Set too far off, it leaves a standing gap; pushed too hard, it drags, folds under and tears within a season. The header piece goes on first, fastened from the centre outward so it stays straight, and the sides are fitted tight beneath it so the fins overlap at the corners. Fasteners are spaced evenly in sound wood, and any joint where water could get behind the stop is caulked.

Sound familiar?

The vinyl strip around the door used to be soft and white. Now it is grey and hard, cracked every few inches, and a piece near the corner snaps off in your fingers. It no longer bends toward the door at all.

How the visit goes

Garage Door Perimeter Weatherstrip

How the visit goes

Technician holding a black decorative strap hinge on a beige paneled garage door and driving a screw with a yellow drill. — Leckie Park
Technician in navy clothes shining a small flashlight at the upper track and hinge of a closed white sectional garage door. — Leckie Park
  1. A daylight test from inside

    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.

  2. Fastening that lasts through the seasons

    Fasteners are chosen for the weather they will live in: galvanized or stainless trim nails, exterior screws where the stop is heavy or the wood is hard, and weatherproof staples only for a light fin on sound wood. They are spaced evenly so the strip stays straight between them, and a nail set is used so the heads sit flush without crushing the vinyl. In cold weather the lengths are kept warm in the van until the moment they are fitted, because cold vinyl is brittle and splits at the ends. Fasteners near the end of each piece go in a little further back for the same reason.

  3. Before the freezing rain

    In late autumn, wipe the fin with a silicone spray or a silicone-based lubricant on a cloth. It leaves a film that cuts the odds of meltwater bonding the fin to the cold door face during an ice storm, though a hard freeze can still catch it. Oil-based products are avoided because they swell and soften vinyl over time. The same wipe once or twice through the winter keeps the fin supple. If the door does freeze to the seal, a little warm water along the edge from inside, or simply waiting for the sun, frees it without pulling; dry the thawed spot afterwards so it does not simply refreeze.

Garage Door Perimeter Weatherstrip

In the van

  • Flexible vinyl fin seal

  • Galvanized or stainless trim nails

  • Flat bar, hammer and nail set

  • Vinyl stop moulding with integral seal

  • Aluminum retainer and rubber insert

Hand pressing a button on a gray keypad with its cover open beside a garage door, the other holding a black remote. — Leckie Park

Garage Door Perimeter Weatherstrip

What affects the quote

  1. Alignment work on the door

    Where the door sits out of square and a track bracket or the door itself needs small correction before the seal can meet it evenly, that adjustment is named separately.

  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. Condition of the jambs

    Soft or rotten wood at the base of a jamb is cut out and spliced with new lumber or PVC trim before the seal goes on, and that repair is quoted as its own item.

What to have ready

  • Is your garage attached to the house, and is it heated?
  • Has the door recently been replaced or adjusted?
  • Is anything stored against the jambs, or a car parked close to the opening?
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Garage Door Perimeter Weatherstrip: questions

Questions
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.

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.

How long does the visit take?

A straightforward fin replacement on a single door is often a matter of an hour or two once the technician is set up; a double door with a one-piece stop takes longer, and any jamb repair adds to it. Most of the time goes into checking the door, preparing the surface and setting the contact carefully, since those are what make the seal last. You are given a sense of the timing when the work is confirmed.

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