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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, Humber Valley

Plan ahead Repairs · Humber Valley

Garage Door Bottom Seal Replacement in Humber Valley

After a spring rain there is a puddle inside the door that reaches the tires. The driveway slopes toward the garage, the slab has a low corner, and the flattened old seal is not making up the difference.

Call now · open 24/7(289) 804-5732

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In plain words

The bottom seal, called an astragal in the trade, is the flexible strip along the underside of the lowest door section that squashes against the floor when the door closes. On most steel doors it is a U-shaped vinyl or rubber profile whose two edges slide into the channels of a retainer fixed to the bottom rail; on wood doors it is often a flat angled strip nailed in place. Replacing it means matching that retainer and profile, fitting a fresh seal the full width of the door, and confirming it meets the floor in one continuous line so light, drafts, water and pests lose their route in.

Sound familiar?

Every mild afternoon the snow melts off the car, runs to the door, and by morning the rubber strip along the bottom is frozen to the concrete. Last week the opener lifted the door and left half the seal on the floor.

How the visit goes

Garage Door Bottom Seal Replacement · Humber Valley

How the visit goes

Technician using a red drill at the curved upper track bracket beside a coiled spring above a white garage door. — Humber Valley
  1. 1

    Reading the gap with the door closed

    The assessment starts with the lights off and the door down. From inside, the technician looks along the floor line for daylight and notes where it shows: a thin line the full width, a wedge at one corner, or a patch in the middle. A straightedge laid across the threshold shows whether the slab is flat or dished, and a hand run along the seal feels where it touches and where it hovers. Photographs of the worst spots are taken so you can see what is being fixed. This map of the gap tells the technician how tall the new seal needs to be and whether anything other than the seal is contributing.

  2. 2

    Closing the door onto the new seal

    The clamps come off, the opener is reconnected, and the door is run closed under power while the technician watches the bottom edge meet the floor. The down limit is adjusted so the seal compresses gently along its full length without the section bowing, and the force setting is checked so the door settles onto the new, taller strip without reversing. From inside with the lights off, the floor line is checked again for daylight. The reversing test with a 38 mm (1.5 in) solid object, or a 2x4 laid flat under the door, and the photo-eye test finish the visit, and you are shown the door closing before the ladder is packed.

  3. 3

    The rest of the weather line

    With the bottom sealed, any remaining draft points to the perimeter: the vinyl fin on the stop moulding at the jambs and header, and the joints between sections. These were looked over during the visit and anything torn, shrunk or missing was pointed out. Replacing perimeter stripping is straightforward work that can be planned for a mild day. Together with a sound bottom seal and, where the floor calls for it, a threshold, the garage gains a stronger barrier against wind, water and cold on all four edges, and an attached garage can stay closer to the temperature of the house.

In the van

  • Aluminum bottom seal retainer
  • Silicone spray lubricant
  • Straightedge and tape measure
  • Nail-on vinyl strip for wood doors
  • Self-drilling retainer screws

What affects the quote

  1. 1

    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.

  2. 2

    Number of doors

    Two single doors are two seals, two inspections and two opener resets. The travel is shared, so doing both in one visit costs less than two separate calls.

  3. 3

    Opener adjustment

    Resetting the down limit and force and repeating the reversing test after a taller seal is fitted is a short step that the quote names whenever the door has an opener.

Same fees day, night or weekend.

Have it ready

Before you call · 0 / 3

(289) 804-5732

Garage Door Bottom Seal Replacement: questions

Advice · (289) 804-5732

Can mice get past a garage door bottom seal?

A worn, hardened or chewed seal is one of their favourite routes, and even a small gap at a corner is enough. A fresh, continuous seal sized to the floor removes that route. For a garage with repeated trouble, seals with a stainless mesh embedded in the vinyl are available and resist chewing. Keeping the jamb seals sound at floor level matters just as much, since a gap beside the door serves them equally well.

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.

How long does a bottom seal last?

Several years is typical, with the range set by exposure. A door facing south or west, a threshold that is wet and salted all winter, and a seal that freezes to the floor a few times a season all shorten the life. A shaded door on a dry slab with a wipe of silicone each autumn can go much longer. The condition of the strip, rather than its age, is what to watch.

Toronto, Ontario

Humber Valley information

Town
Humber Valley, Toronto, Ontario
In business
12 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

58%

Older homes. About 58% of homes in Toronto were built in 1980 or earlier, according to the 2021 Census.

Wiring in an older garage may be a single outlet on the ceiling shared with the light, so a new opener is chosen with that in mind, and a battery backup covers the door during a power cut. The technician looks at the outlet before recommending a unit.

23%

Single-detached houses make up about 23% of homes in Toronto (2021 Census).

Where most residents live in attached homes, a technician's day includes coordinating with neighbours: parking the van without blocking a shared lane, keeping noisy work to reasonable hours, and finishing a door in one visit so the row is not disrupted twice.

Source: Statistics Canada, 2021 Census of Population

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Open 24/7

Request a visit

After a spring rain there is a puddle inside the door that reaches the tires.

Call now · open 24/7(289) 804-5732
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 12 years in business