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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, Mississauga

Plan ahead Repairs · Mississauga

Garage Door Bottom Seal Replacement

There are mouse droppings along the wall behind the recycling bins, and at one bottom corner of the door the vinyl has a neat chewed notch the width of a thumb. Something has found its way in for the winter.

Call now · open 24/7(289) 724-1791

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In plain words

What you have afterwards is a door that closes onto a single soft line of contact from jamb to jamb. Daylight under the door is much reduced, the draft across the floor eases, wind-blown leaves and snow are kept out more effectively, and the tighter gap makes the route in harder for mice. The opener has been reset so the door lands gently on the new strip instead of pressing it flat. You also leave knowing the seal's profile and size, which makes the next replacement a matter of one phone call, and a couple of simple habits for winter that keep the new seal from freezing to the floor.

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 · Mississauga

How the visit goes

Hand pressing a button on a gray keypad with its cover open beside a garage door, the other holding a black remote.
  1. 1

    Retainer condition and fasteners

    The aluminum or plastic retainer that grips the seal is inspected along its full length. The technician looks for kinks where something struck it, channels that have been spread open, corrosion where salt has sat, and screws that have rusted or pulled loose from the rail. A retainer that is straight and tight is reused; one that is damaged is measured for a matching replacement so both channels line up with the new seal. On doors where the retainer is part of a plastic bottom cap, a cracked cap is noted and a screw-on aluminum retainer is offered as the practical repair.

  2. 2

    Feeding the seal into the retainer

    Both edges of the new seal are started into their channels together at one end of the door. A spray of soapy water or silicone on the edges lets the strip glide, and the technician works it across in stages, pulling gently from the front end and feeding from the other so the seal is never stretched, since a stretched seal shrinks back and leaves a gap later. Once it is across, the bulb is checked to hang evenly with no twists. The ends are trimmed flush with the door and folded up into the channel or capped, so water running along the seal drains out rather than into the section.

  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

  • Wire brush and scraper
  • Bulb or U-style bottom seal
  • Bead-style bottom seal
  • Aluminum bottom seal retainer
  • Silicone spray lubricant

What affects the quote

  1. 1

    Floor and threshold shape

    A dished, sloped or heaved slab may call for a taller bulb profile or a threshold seal on the floor, each of which is quoted as a separate choice you can accept or leave.

  2. 2

    Retainer replacement

    If the aluminum or plastic retainer is bent, spread open or corroded, a new extrusion, fasteners and the time to fit it straight along the rail are added as their own line.

  3. 3

    Seal profile and size

    T-style, bead and bulb profiles in different widths and heights sit at different points on the parts list, and the retainer on your door decides which one is used.

Same fees day, night or weekend.

Have it ready

Before you call · 0 / 3

(289) 724-1791

Garage Door Bottom Seal Replacement: questions

Advice · (289) 724-1791

The seal looks fine, so why is there still daylight under the door?

A seal can look intact and still have taken a permanent set, so the bulb no longer springs up to fill the gap. Otherwise the gap belongs to something else: a door hanging out of level, a bowed bottom section, a floor that has settled at one end, or an opener down limit set so the door stops short. The first look during the visit sorts these apart so the fix goes to the right place.

What information helps when I book?

The width of the door and whether it is a single or double; what is getting in, whether light, drafts, water, snow or pests, and where along the door; whether the gap is even or worse at one end; the door material; and a photo of the end of the bottom section showing the retainer and seal. Mention if the seal has frozen to the floor or if the door has been reversing before it closes.

How long should I allow for the work?

Plan on an hour or two for a straightforward replacement on a standard door, including the inspection and the opener reset. A retainer replacement, a hardened seal that has to come out in pieces, a wood door with a nail-on strip or the addition of a threshold seal each add time. The technician will give you a realistic window once the door has been looked at.

Garage Door Bottom Seal Replacement near you

Peel, Ontario

Mississauga information

Town
Mississauga, Peel, Ontario
In business
17 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

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.

Source: Statistics Canada, 2021 Census of Population

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Open 24/7

Request a visit

There are mouse droppings along the wall behind the recycling bins, and at one bottom corner of the door the vinyl has a neat chewed notch the width of a thumb.

Call now · open 24/7(289) 724-1791
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 17 years in business