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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, Highview Survey

Plan ahead Repairs · Highview Survey

Garage Door Bottom Seal Replacement in Highview Survey

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

A seal visit runs in a set order. With the door closed, the technician looks for daylight along the floor line and notes whether the gap is even or concentrated at one point. The door is checked for level and the bottom section for straightness, then the retainer is identified and measured. The opener is disconnected and the door secured before the old strip comes out and the channels are cleaned. A new seal, cut a little long, is fed into the channels and trimmed. Finally the door is closed onto the new seal, the opener's limits are reset, and the reversing test is run before the tools go away.

Sound familiar?

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.

How the visit goes

Garage Door Bottom Seal Replacement · Highview Survey

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. — Highview Survey
  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

    Cutting the new seal to length

    The replacement is cut from a roll to the door width plus a small allowance at each end, using heavy shears or a knife, and the profile is checked against the retainer before any feeding begins. The technician confirms the T or bead edges match the channels and that the bulb height will fill the gap measured earlier without being squashed flat. Where the floor dips at one end, a slightly taller profile is chosen rather than relying on the opener to press harder. Cutting a little long means the ends can be trimmed to the door and finished cleanly once the seal is in.

  3. 3

    The opener stays in step with the seal

    The opener was reset to the new seal height, and it will hold that setting until something changes. If the door begins to reverse just before the floor, stops short and leaves a gap, or lands with a thump, the down limit or force has drifted or the seal has taken a set, and a small adjustment puts it right. The reversing test with a 38 mm (1.5 in) solid object, or a 2x4 laid flat under the door, is worth repeating monthly and after any adjustment, as the industry checklist for homeowners describes. A door that closes gently and reverses on an obstruction is one whose seal and opener are working together.

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

    Season and conditions

    A seal frozen to the slab, ice at the threshold or working in deep cold adds time for freeing the old strip, clearing the line and keeping the new roll warm enough to feed.

  2. 2

    Bottom section repairs

    A rusted, dented or bowed steel bottom rail, or a rotted wood rail, is pointed out and any repair or reinforcement offered as an option beside the seal work.

  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) 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

Highview Survey information

Town
Highview Survey, 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.

Streets with a mix of older and newer homes tend to show a mix of door styles too, from flush wood panels to raised-panel steel and carriage designs. When a replacement is chosen, it can either match the house's period or the neighbouring doors, and we help weigh both.

50%

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

A neighbourhood with a mix of detached houses and townhouses or condos means a technician moves between a wide family double door and a narrow single in a row within the same afternoon. The van carries hardware for both, and each visit is planned for that door.

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