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AldershotDoor Specialists · BayviewOpen 24/7(289) 816-6604Request a visit
A person kneels beside the black bottom seal of a garage door, with daylight visible beneath the edge. — Garage Door Bottom Seal Replacement, Bayview

Repairs · Bayview

Garage Door Bottom Seal Replacement in Bayview

With the door closed and the lights off, a bright line of daylight runs along the floor from one side to the other. Leaves and grit have blown in under it and gathered in a neat drift against the back wall.

Garage Door Bottom Seal Replacement

In plain words

The bottom seal is one part of a weather line that runs all the way round the door. Vinyl-finned stop moulding seals the jambs and header, the section joints have their own tongue-and-groove or shiplap seals, and a threshold seal glued to the floor can meet the bottom strip where a slab slopes the wrong way. Bottom seal replacement addresses the piece that takes the most punishment, and while the technician is there the rest of the perimeter is looked over. Where the side or top strips are torn or shrunk, doing them in the same visit gives a garage sealed on all four edges rather than three.

Sound familiar?

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.

How the visit goes

Bayview

How the visit goes

  1. Is the door hanging level?

    A gap that is wider at one corner is often the door rather than the seal. The technician checks that the door sits square in the opening by comparing the bottom edge to the floor at both ends and looking at how each lift cable wraps its drum. A stretched cable, a drum that has crept on its shaft or uneven spring tension drops one corner a centimetre or two, and setting the door level is what closes that wedge. If the door is out of level, the adjustment is explained as its own item and done first, and the seal is then sized to the gap that remains. Getting the order right saves fitting a seal twice.

  2. Taking the old seal out

    With the door secured, the ends of the old strip are freed from any caps or folds and the seal is drawn out of its channels from one end. A supple seal slides; a hardened one is coaxed with a flat blade and a little silicone, or cut into short lengths and removed a piece at a time. Old nails come out of a wood rail with a claw. The channels are then cleaned of grit, rust flakes, salt crust and any remnants of the previous strip with a wire brush and a scraper, because a clean channel is what lets the new seal feed through without tearing.

  3. A record of the profile and size

    Before leaving, the technician tells you what went on the door: the seal profile, whether T, bead or bulb, its width and height, the material, the door width it was cut for, and whether the retainer was renewed. Write this on a card by the opener or inside the manual. Bottom seals wear out on a schedule of years rather than decades, and knowing the profile means the next one can be ordered and fitted without measuring from scratch. If a threshold seal was added, its length and type belong on the same card.

Garage Door Bottom Seal Replacement

In the van

  • Self-drilling retainer screws
  • Bead-style bottom seal
  • Track clamps
  • Wire brush and scraper
  • Straightedge and tape measure

What affects the quote

Same fees day, night or weekend

  1. 1Floor 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. 2Condition of the old seal

    A supple strip slides out in a minute. One that has hardened and seized in its channel, or been torn and frozen into the corners, has to come out in pieces, which takes longer.

  3. 3Opener 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.

What to have ready

0 of 3 ready

Call (289) 816-6604

Garage Door Bottom Seal Replacement: questions

What does a new bottom seal do about water coming in?

It closes the gap between the door and the slab so rain and meltwater meet a continuous barrier. Where the driveway slopes toward the garage, or the slab edge has dipped, the seal alone is working against gravity, and a threshold seal glued to the floor adds a lip that turns water back toward the drive. The technician looks at where the water comes from and recommends the combination that suits your threshold.

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.

How can I tell that the bottom seal needs replacing?

Close the door, turn off the lights and look along the floor from inside. Daylight showing, a strip that feels hard or cracks when pressed, a bulb that has flattened and stays flat, an end hanging out of its channel, chew marks or missing pieces are all signs. So are leaves, snow or a puddle inside the door after weather. Any one of these means the seal has stopped doing its job.

Repair & Maintenance

Garage Door Bottom Seal Replacement near you

Most calls from Bayview start with a symptom rather than a part name: a bang, a door stuck halfway, a remote that only works from the driveway. Below are the services behind those symptoms, from spring and cable replacement to opener repair, panel work and complete door installation.

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