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Person fitting a black strip along the bottom edge of a partly raised garage door, with a cracked strip lying on the floor. — Garage Door Bottom Seal Replacement, Burlington

Plan ahead Repairs · Burlington

Garage Door Bottom Seal Replacement

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.

Call now · open 24/7(289) 816-6526

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In plain words

The material matters as much as the shape when the garage sees real winters. Vinyl is the common choice: it resists moisture and sun well but grows stiff in deep cold and stops moulding itself to the concrete. Rubber stays supple at low temperatures and follows an uneven floor, though it can harden after many years of sun. Silicone keeps its flexibility through hot and cold alike and resists cracking, at a higher cost per metre. Choosing the right compound for a door that faces the weather is part of the service, and it is one reason a replacement seal often outlasts the one it replaces.

Sound familiar?

The garage doubles as a workshop, and with the heater running the floor near the door stays cold and the draft finds your ankles at the bench. When the wind is up you can feel the air moving under the door.

How the visit goes

Garage Door Bottom Seal Replacement · Burlington

How the visit goes

Technician reaching up with a drill at the vertical track of a black-framed glass-panel garage door, beside a blue ladder.
  1. 1

    Why the old seal failed

    The old strip is read for its history before it comes off. Cracks along the fold and a chalky surface point to sun and age. A flattened bulb that no longer springs back is compression set. A torn edge at one end usually means the seal froze to the floor and the opener pulled it free. Chew marks say rodents. A strip that has slid partly out of its channel points to a bent or opened retainer, or to a seal that was slightly the wrong size. Each of these leads to a different choice of material, profile or retainer work, so the new seal is spared the fate of the old one.

  2. 2

    Wood doors and nail-on strips

    A wood garage door usually carries a flat or angled strip of vinyl or rubber nailed directly to the bottom rail rather than a channel seal. The technician removes the old strip and nails, checks the rail for soft spots and cupping, and treats or dries damp wood as needed. The new strip is positioned so its lip angles toward the outside and touches the floor along the full width, then fastened with galvanized nails or screws at close, even spacing so it cannot ripple. On a rail that follows an uneven floor, the strip's flexibility takes up the difference.

  3. 3

    A clear threshold through winter

    The seal closes onto whatever is on the floor, so the threshold deserves a moment when you clear the driveway. Push packed snow and the ridge of ice that forms where the door meets the slab away from the opening before running the door, and sweep salt piles and grit clear of the line so they are not ground into the strip. Park a little further in, if the garage allows, so drips from the car fall on the floor rather than at the seal. These are the same habits that protect the bottom brackets and cables in the corners.

In the van

  • Bulb or U-style bottom seal
  • Track clamps
  • Nail-on vinyl strip for wood doors
  • Silicone spray lubricant
  • Bead-style bottom seal

What affects the quote

  1. 1

    Wood door nail-on strip

    A wood door with a nailed strip takes a different product and more fastening time than a channel seal, and adding a retainer to a wood rail is a further option to consider.

  2. 2

    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.

  3. 3

    Door out of level

    If one corner of the door hangs low because of cable or spring tension, levelling the door is separate work done before the seal goes in and is priced on its own.

Same fees day, night or weekend.

Have it ready

Before you call · 0 / 3

(289) 816-6526

Garage Door Bottom Seal Replacement: questions

Advice · (289) 816-6526

Why is the gap much bigger at one corner?

Two causes are common. The door may be hanging out of level because a lift cable has stretched, a drum has crept on its shaft or spring tension is uneven, which drops one corner. Or the slab may have settled or heaved at that end so the floor falls away. The technician checks both before choosing a seal, since a level door and the right seal height together close a wedge-shaped gap.

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.

How do I look after the new seal?

Wipe it clean of salt and grit a few times a year, and give it a light coat of silicone spray each autumn so meltwater has nothing to bond to. Keep petroleum products and solvents away from it, since they soften vinyl. Clear ice and packed snow from the threshold before running the door in winter. Once a season, look under the closed door for daylight. That is the whole routine.

Halton, Ontario

Burlington information

Town
Burlington, Halton, Ontario
In business
22 years
Hours
Open 24/7 · nights, weekends and holidays, same fees
Visits
On-site assessment preferred. Request a visit or call.

What the census means at the door

47%

Homes of every age. About 47% of homes in Burlington were built in 1980 or earlier, according to the 2021 Census.

A blend of older and newer homes usually means a blend of expectations too: keeping an original door running as long as sensible, or bringing a builder-grade door up to a quieter standard. Both are worthwhile, and the choice is explained at the door with the options side by side.

50%

A mix of homes. Single-detached houses make up about 50% of homes in Burlington (2021 Census).

Where housing is mixed, the doors are mixed as well: wide insulated doubles, narrow singles in rows and the occasional rolling door on a small commercial unit at the corner. Spring type, cable length and opener strength are matched to each door individually.

Source: Statistics Canada, 2021 Census of Population

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Request a visit

The strip under the door has gone as hard as a hose left out for ten summers.

Call now · open 24/7(289) 816-6526
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 22 years in business