Repairs · Whitchurch-Stouffville
Garage Door Panel Replacement
After an overnight freeze the door stuck to the slab, the opener strained, and something gave.
In plain words
Winter is hard on the bottom section. Meltwater collects under the seal and freezes the door to the slab; the opener then pulls on a door that is anchored at the floor, and the bottom section bows or a hinge tears out of its stile. Road salt and slush finish the job by rusting the lower edge. Replacing that section restores a flat, sealed bottom edge and gives the door a new set of bottom brackets and seal retainer. Because the lift cables attach at the bottom, the springs are unloaded first, then reloaded and balanced once the new section is in, so the door runs as it should.
How the visit goesThe inside face of one section has started to bow outward and the outer skin has a soft, wavy look. Tap it and it sounds hollow in places. The door is insulated, and the foam core seems to have parted from the steel.
Garage Door Panel Replacement
How the visit goes
Which position took the hit
Bottom, middle and top sections are different parts with different jobs, and the position sets the shape of the repair. A bottom section carries the lift cables through its bottom brackets, so replacing it means unloading the springs first. A top section carries the opener arm bracket and the top roller fixtures, so its replacement includes resetting how the opener pulls. An intermediate section carries only hinges and rollers and is the simplest exchange. The technician also checks whether the damaged section is a special one, such as a glazed section or one with a factory strut, because it is ordered as that exact position and type.
Re-tensioning and balancing the door
A replaced section can weigh a little more or less than the one that came out, especially when insulation or glazing differs, and the springs are set to the door as it now is. With the opener still disconnected, the technician winds the torsion spring to specification or rehangs the extension springs, then lifts the door by hand. A balanced door stays put around waist height, drifts neither up nor down, and moves through its travel with steady, even effort. Adjustments are made a quarter turn at a time until that is true, and the cables are checked for equal tension on both drums.
The colour over the first season
A fresh factory finish beside weathered sections shows for a while, and you should expect that rather than be surprised by it. Sun and weather will change the new colour somewhat over a season or two, but weathering does not reliably bring it into line with older sections, and a visible mismatch can persist even with the same factory colour designation. If the contrast is more than you would like, the door can be repainted as a whole with an exterior paint suited to the finish, which also refreshes the older sections. Keep the colour name and code from the order; it makes a later touch-up or a second section far simpler to match.
Garage Door Panel Replacement
In the van
Bottom brackets with cable tabs
Adjustable top roller brackets
Nylon or steel rollers
Horizontal reinforcement strut
Numbered section hinges
Garage Door Panel Replacement
What affects the quote
Spring work required
A bottom section means torsion springs are unwound and rewound, or, on an extension-spring door, the door is raised and secured so the springs relax and its hooks and cables are reset instead. A section changing the door's weight may call for a balance adjustment.
Special-order handling and freight
Made-to-order sections travel from the factory or distributor, and a long or glazed section needs careful handling in transit. Freight and order handling are shown as their own line rather than folded into labour.
Colour and finish decisions
The section comes in the manufacturer's current version of your colour. If you choose to repaint the whole door afterwards, or order a colour change across all sections, that becomes a separate item.
What to have ready
- Would you consider a whole new door if a matching section is unavailable?
- Are any other sections dented, rusted or out of line?
- What colour and panel design is the door?
Garage Door Panel Replacement: questions
QuestionsCan a wood garage door section be replaced?
Yes, though wood doors are more often site-built or made in small runs, so a matching section may be made up by a door shop rather than ordered from a catalogue. The new section is primed and finished to match, the hardware is transferred, and the technician looks closely at the neighbouring sections for rot or splitting, since wood sections tend to age together. Where several are failing, a new door is discussed.
Do the hinges and rollers get replaced at the same time?
Hinges and rollers that are bent, cracked or worn are replaced with the section, and the technician checks each one on the affected joints. Sound hinges can be transferred, always by their stamped number, since each position in the door uses a different offset. Rollers that have flat spots, wobbly stems or dried bearings are swapped, often for nylon rollers that run quietly. Fasteners are always new, driven into fresh holes in the new stiles.
The car has just hit the door. What should I do before you arrive?
Stop using the door and leave it where it is, whether open or closed, unless leaving it open is unsafe. Pull the opener's plug so nobody presses a remote out of habit. Keep people and pets clear, especially if the door hangs unevenly or a cable looks loose, since the springs are still under tension. Take a few photographs, find the manufacturer's label if you can, and tell the technician exactly what happened and how hard the contact was.
Related services
- Garage Door Tune-UpOn windy nights the door rattles in its frame, there is a line of daylight along one side, and the bottom seal has gone hard and flat.
- Off-Track Garage Door ResetYou tapped the door with the bumper while backing in, barely a nudge, and now the bottom corner has swung inward.
- Garage Door Bottom Seal ReplacementThere 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.