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Garage Doors

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A garage door is the biggest moving part of most houses. It spans an opening wider than any window, runs up and down several times a day, faces driving snow and wind, and on many homes takes up a large share of the street-facing wall. On an attached garage it sits one wall away from the living space, so its insulation and seals affect the rooms beside and above it.

Garage door installers measure the opening, remove the old door and its springs, and install a new door with its tracks, counterbalance system and weatherstripping, then reconnect or replace the opener. The choice covers style, material, insulation, windows and colour, and a well-matched door can change the look of a house as much as new siding.

This page covers the main types of garage doors and their materials, insulation for attached and heated garages, weatherstripping and bottom seals for winter, windows in the door, measuring headroom and side room, and removing the old door. For broken springs, cables and doors that jam, see the garage door repair page; for motors and remotes, see the garage door openers page.

Types of garage doors: sectional, roll-up, carriage-style and tilt-up

  • Sectional door: horizontal panels joined by hinges roll up on tracks and tuck under the ceiling, so the door never swings out toward the driveway and a car can park close to it.
  • Roll-up door: narrow steel slats coil onto a drum above the opening, useful where the ceiling is too crowded for horizontal tracks, though more common on sheds and commercial buildings than on houses.
  • Carriage-style door: usually a sectional door dressed with overlays, handles and decorative hinges that imitate old swing-out stable doors, or, less often, true side-hinged doors that need clear space to open outward.
  • Tilt-up door: a single rigid panel that pivots up and in, found on older homes; it swings out past the face of the house as it opens and is usually replaced by a sectional door.

Garage door materials: steel, wood, composite, aluminum and glass

The material decides the door's weight, how it takes a knock from a bike or a snowblower, and how much upkeep it asks of you. Weight matters more than it seems: the springs are sized for the door, so a heavier door needs heavier counterbalance hardware.

Wind acts on the door too. On an exposed lot facing open fields or water, gusts push the large, flat door in and pull it out, so a wide door or an exposed site may call for heavier steel, extra reinforcing struts and sturdier track anchoring. Describe the site to the installer and let them choose a door built for it.

  • Steel: the most common choice, from a single thin skin to a sandwich of two skins around insulation; thicker steel and an insulated core resist dents better, and scratches should be touched up before rust starts.
  • Wood: warm and handsome on heritage and high-end homes, but heavy and demanding, since it must be refinished regularly to cope with sun, rain and snowmelt.
  • Composite and wood-look finishes: a steel or composite door with a moulded or laminated surface that imitates wood grain with much less maintenance.
  • Aluminum and glass: light frames with large glass or polycarbonate panels for a modern look, which let in daylight but insulate less than a solid insulated door.

Insulated garage doors for attached and heated garages

An insulated door matters most when the garage shares a wall with the house, when there is a bedroom or living space above it, or when the garage is heated as a workshop. Insulated doors are built as a sandwich of steel skins around a foam core, either rigid boards or foam injected between the skins, and besides holding heat better they tend to be stiffer and quieter than a single-skin door. Compare models by the insulation value the manufacturer publishes for the whole door and by the quality of the perimeter seals, since gaps can undo a good core.

Insulating the big door does not turn the garage into living space, and it does not protect the house from what the garage holds: car exhaust, fuel and stored chemicals. Health Canada advises keeping the door between the house and an attached garage closed and well sealed, and not idling a car, a gas-powered lawnmower or a snowblower in the garage. The barrier that protects your family is the shared wall, the ceiling and the entry door, so have the gaps around pipes, wires and that door sealed, and see the interior doors page for the rules that apply to it.

Garage door weatherstripping and bottom seals for Canadian winters

Most of the cold, snow and mice that get into a garage come around the door's edges rather than through it. A new door comes with its seals, but the installer must set them so the door closes snugly without being forced, and an uneven concrete slab is the usual complication.

  • Bottom seal: a flexible rubber or vinyl strip along the bottom section that presses against the floor; it hardens and cracks with age and should be replaced when daylight shows beneath the door.
  • Threshold seal: a raised strip fastened to the floor that helps on a sloped or uneven slab and keeps wind-driven rain and snowmelt out, as long as it suits how you use the floor.
  • Perimeter weatherstripping: the flexible stop moulding along the sides and top of the opening, which should touch the face of the door lightly all the way around.
  • Frozen to the floor: the bottom seal can freeze into ice or refrozen slush, so clear the ice rather than letting the opener strain, and ask about a seal material that stays flexible in the cold.

Garage door windows: daylight, privacy and heat loss

Windows in a garage door bring daylight into a space that often has none and give the front of the house a finished look. They are also the part of the door that loses the most heat and the easiest to see through, so the choice is a balance.

  • Placement: a row of windows in the top section is the usual compromise, bringing in light while staying out of reach of bikes, bins and bumpers.
  • Glazing: insulated double glazing suits a heated or attached garage, while single glazing is enough for an unheated detached one.
  • Privacy and security: frosted, textured or tinted glass hides tools and vehicles from the street, and it is best to avoid a window through which someone could break the glass and reach the opener's manual release.
  • Safety: tempered glass or polycarbonate is the safer choice in a door that moves and gets bumped.

Garage door installation: measuring headroom and side room, removing the old door

A garage door is fitted to the space behind the opening as much as to the opening itself. Before quoting, the installer measures the width and height of the opening, the headroom between the top of the opening and the ceiling, the side room on each side for the vertical tracks and springs, and the depth of the garage for the horizontal tracks and the opener. Low ceilings, beams, ducts, a sloped ceiling or a light fixture in the way can call for low-headroom track, a different spring system or a wall-mounted opener.

  • Removal: the old door's springs are unwound and the door is taken apart section by section, the most dangerous step of the job because the springs store a lot of energy, and one for trained technicians only.
  • Framing check: the jambs and header are checked for rot and solid attachment, and damaged wood is replaced before the new door goes in.
  • New door: the sections are stacked and hinged in the opening, the tracks are fastened to solid framing, and the springs and cables are installed and tensioned to balance the door.
  • Adjustment and testing: the installer checks that the door runs smoothly, stays balanced, seals at the floor and reverses as it should, then shows you how to use the manual release.
  • Changing the opening: widening an opening or turning two single doors into one double door means changing the header in a load-bearing wall, so a building permit may be needed; check with your municipality before ordering.

Garage Doors: frequently asked questions

Is an insulated garage door worth it?

For an attached or heated garage, or one with a room above, usually yes: an insulated door keeps the garage warmer, is stiffer and quieter, and makes the rooms next to it more comfortable. For an unheated detached garage used only for storage, an uninsulated door can be enough.

How much headroom do I need for a new garage door?

It depends on the door, its track and spring system and the opener, and low-headroom tracks and wall-mounted openers exist for tight garages. Have the installer measure before you choose a model.

Can I replace my garage door and keep the old opener?

Often, if the opener is in good condition, suits the weight of the new door and has working safety reversal and photo-eye sensors. An old opener without those features, or one that struggles to lift the door, is best replaced at the same time.

Why does my garage door freeze to the floor?

Meltwater from snow collects under the door and freezes the bottom seal to the concrete. Clear the ice before opening, don't let the opener force the door, and look at where the water pools, since a low spot at the door may need correcting. A worn or hardened seal is worth replacing.

Can I remove my old garage door myself?

Not safely. The springs are under high tension even when the door is closed, and releasing them without the right tools and training can cause serious injury. Leave removal to a trained garage door technician; it is usually part of the installation.

Sources

  1. Improve indoor air quality in your home — Health Canada
  2. Technical Data Sheet 174: Building occupant – checking a residential sectional garage door for damage — DASMA

Written by the LokalMatch editorial team. Last reviewed September 10, 2026.

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What affects the cost of garage door

Prices depend on the details of your project. We only publish price ranges when they’re backed by real LokalMatch quote data or reliable sources. Until then, here’s what usually changes the price:

  • Number, size and style of windows or doors
  • Frame material and glass options
  • Full-frame replacement or insert
  • Repairs to rotted framing or sills
  • Interior and exterior trim and capping
  • Access, including upper floors

How to compare garage door installers before you hire

  • Look for an installer who measures on site and explains how the new window or door will be sealed and flashed.
  • Ask whether the quote is for a full-frame replacement or an insert, and why they recommend it.
  • Compare quotes on the same product type, glass options, installation method and interior and exterior trim.
  • Ask who handles warranty issues: the installer, the manufacturer or both.
  • For garage doors, choose a technician trained on springs and openers, since that work can be dangerous.

Questions to ask garage door installers before you hire

  • Will you replace the full frame or install an insert, and what's the difference for my home?
  • How will you insulate and seal around the new units?
  • Is interior and exterior trim included in the price?
  • What does the manufacturer's warranty cover, and what does your installation warranty cover?
  • How long will it take for the products to arrive once I order?
  • Will your own crew do the installation?

When to call a pro for garage door

  • Drafts, condensation or fog between the panes
  • Windows or doors that stick, won't lock or let water in
  • A garage door that's off track or has a broken spring: don't try to force it, and call a garage door technician.

Garage door permits and local rules

Some garage door work needs a permit or has to meet local bylaws. Rules vary by municipality, so ask your pro whether a permit is needed and who will apply for it — and check with your city or town if you’re unsure.

Permits and licensing

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