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Garage Door Repair

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Fix broken springs, cables, rollers and stuck garage doors. Tell us about your garage door repair project and we’ll help you find local garage door technicians who serve your area.

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Garage doors tend to fail at the worst moment: a spring snaps on a cold morning with the car inside, the door jumps its track, or it refuses to close and leaves the house open for the night. Most of these failures come from a small number of parts that wear with use, and most can be repaired without replacing the door.

Garage door technicians replace broken torsion and extension springs and frayed lift cables, put doors back on their tracks, change worn rollers, hinges and bottom seals, straighten or replace damaged panels, rebalance doors and adjust or repair openers. The springs and cables hold enough stored energy to cause serious injury, which is why this work belongs to trained technicians rather than homeowners.

This page describes the common garage door problems and what usually causes them, how springs and cables work and what to do when one breaks, the monthly checks you can safely do yourself, what a service call involves and how to decide between repair and a new door. For choosing a new door, see the garage doors page.

Common garage door problems and what usually causes them

A garage door is a system: the door, its tracks and rollers, the springs and cables that carry its weight, and the opener that moves it. A symptom in one part often starts in another, which is why a technician looks at the whole door before replacing anything.

  • Noisy door: grinding, squealing or banging usually points to worn rollers, dry hinges and bearings, loose hardware, or a door out of balance that makes the opener strain.
  • Off track: a door that has left its track, often after being hit or after a cable let go, can fall, so stop using it and keep clear until a technician resets it.
  • Won't close: the photo-eye sensors may be dirty, knocked out of line or blocked, or the opener's travel limits may need adjusting.
  • Closes, then reverses: an obstruction, a sensor problem, ice under the door or a door binding in its tracks can make the opener sense resistance and go back up.
  • Won't open, or opens only a little: a broken spring is the classic cause, since the opener is not built to lift the full weight of the door.
  • Frayed or slack cables: the lift cables at the bottom corners wear, rust and fray, and a cable that lets go can drop one side of the door.

How garage door springs and cables work: torsion vs extension springs

A garage door is heavy, but a well-balanced one feels light because the springs carry most of its weight; the opener, or your arm, only has to guide it. When a spring breaks or a cable fails, that balance is gone and the door becomes dangerous to move.

  • Torsion springs: mounted on a shaft above the opening, they twist as the door closes and unwind to help lift it, turning drums that wind the lift cables.
  • Extension springs: long springs that run along the horizontal tracks and stretch as the door closes, found mostly on older or lighter doors.
  • Containment: industry safety checklists call for a safety cable running through the centre of each extension spring, so a broken spring can't fly across the garage; torsion springs are contained by their shaft.
  • Lift cables: steel cables run from the bottom corners of the door to the drums or pulleys and carry the force of the springs to the door.
  • Bottom brackets: the brackets where the cables attach at the bottom of the door are under tension too, and should never be loosened by a homeowner.
  • Balance: springs are matched to the door's weight, so adding insulation, windows or a heavier replacement panel means a technician must check them.

Broken garage door spring or cable: safety first

Springs, cables and the hardware attached to them are under high tension, and releasing that energy without training and proper tools can cause serious injury. Safety checklists from the Door & Access Systems Manufacturers Association (DASMA), which writes industry standards for garage doors, warn that a door with a broken spring should not be operated until the spring is replaced, and that homeowners should not try to remove, repair or adjust springs, cables, brackets or anything they are fastened to. That work belongs to a trained door systems technician.

A snapped torsion spring usually announces itself with a loud bang in the garage, followed by a door that won't open or feels far heavier than usual. A visible gap in the coils of a spring above the door confirms it.

  • Stop using the door and the opener, and unplug the opener or put the remotes away so no one tries it.
  • If the door is stuck open or partway open, keep people, pets and vehicles out from under it, since without a working spring it can come down hard.
  • Don't pull the manual release on an open door with a broken spring or cable, because nothing will be holding it up.
  • Don't try to lift the door by hand or with a jack, and don't touch the spring, cables, drums or bottom brackets.
  • Call a garage door technician and describe what you heard and what you see; many offer emergency service when a car is trapped inside or the house can't be closed.

Monthly garage door safety checks you can do yourself

The U.S. Consumer Product Safety Commission advises homeowners to inspect the garage door and opener monthly, and DASMA's homeowner safety guide recommends the same routine. None of these checks involves touching springs or cables. If anything looks wrong, or the door moves on its own once released, stop and call a technician.

  • Look, don't touch: with the door closed, look over the springs, cables, rollers, hinges and brackets for rust, fraying, a gap in a spring's coils, cracks or loose parts.
  • Balance check: with the door fully closed, pull the opener's manual release and lift the door by its handles, never by the joints between sections; a balanced door moves smoothly with little effort and stays put partway open, while one that is heavy, drops or rises on its own needs service.
  • Auto-reverse test: reconnect the opener, lay a piece of wood flat on the floor in the door's path and close the door; it should reverse as soon as it touches the wood.
  • Photo-eye test: while the door is closing, pass an object through the beam near the floor, and the door should reverse; never use a hand, a foot or your body for this test.
  • If a test fails, stop using the opener until it has been adjusted according to its manual, repaired or replaced.

What happens during a garage door repair visit

  • Diagnosis: the technician runs the door by hand and with the opener, checks the balance, springs, cables, rollers, hinges and tracks, and explains what failed and why.
  • Springs: a broken spring is replaced with one matched to the door's weight and height, and on doors with two springs both are often replaced together so they wear evenly.
  • Tracks and rollers: bent track sections are straightened or replaced, and worn rollers and hinges are changed.
  • Panels: a damaged section can be replaced on its own when the manufacturer still makes it, although an exact colour match on a faded door is not guaranteed.
  • Opener and safety: once the door is fixed, the opener's force and travel settings are adjusted and the reversal and photo-eye functions are tested.

Garage door repair or replacement: how to decide

  • Repair when a spring, cable, roller or hinge has failed on an otherwise sound door, since these are wear parts expected to be replaced during the door's life.
  • Repair when one or two panels are damaged and matching sections are still available.
  • Replace when several panels are cracked, rusted through or buckled, or the door's structure is weakened.
  • Replace when parts for the model are no longer made, or when the same repairs keep coming back.
  • Replace when you want insulation, quieter operation or a new look the old door can't give; see the garage doors page to choose one.

Garage Door Repair: frequently asked questions

Can I replace a garage door spring myself?

No. Springs and the parts attached to them are under high tension, and door industry safety guidance says homeowners should not remove, repair or adjust springs, cables or brackets. Spring replacement is a job for a trained garage door technician with the proper tools.

Why does my garage door go back up when it's closing?

The opener senses something in the way. Check that nothing blocks the photo-eye beam, that the lenses are clean and that both sensors still face each other. Ice under the door or a door that binds in its tracks can also trigger it. If the problem persists, have a technician check the door and the opener's settings.

Why is my garage door so loud?

Worn rollers, dry hinges, loose hardware or a door out of balance are the usual causes. Lubricate only the parts your owner's manual lists and have a technician check the rest, since the bottom brackets and anything connected to the cables are under tension.

Can a single dented garage door panel be replaced?

Often, if the manufacturer still makes that section. A new panel may not match a faded door exactly, and a badly bent section can affect how the whole door runs, so have a technician assess it.

How often should a garage door be checked?

Look it over and test the auto-reverse and photo eyes monthly, as consumer safety guidance recommends, and follow the manufacturer's maintenance instructions for professional servicing. Call a technician sooner if the door becomes noisy, jerky or hard to lift.

Sources

  1. Non-Reversing Automatic Garage Door Openers Are a Hazard, Publication 523 — U.S. Consumer Product Safety Commission
  2. Technical Data Sheet 167: Residential sectional garage door and electric operator checklist for home inspectors and consumers — DASMA
  3. Technical Data Sheet 174: Building occupant – checking a residential sectional garage door for damage — DASMA
  4. Technical Data Sheet 165: Manual operation of a garage door — DASMA
  5. Automatic Garage Door Opener Safety & Maintenance Guide — DASMA

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

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What affects the cost of garage door repair

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 technicians 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 technicians 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 repair

  • 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 repair permits and local rules

Some garage door repair 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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