Why does my garage door motor run but the door won't open?

That gap between sound and movement almost always means the drivetrain, not the door: either the opener's gear-and-sprocket is stripped (a repair that reuses your motor and rail) or the trolley is disengaged from manual mode. Pull the manual release, lift the door by hand — if it moves smoothly, the problem is inside the opener, not your springs or track.

How do I open a garage door with a broken spring manually?

Carefully, and only with help. With both springs intact a door is counter-balanced; with one broken it can weigh as much as a dishwasher. Two people can walk it down in an emergency by lifting firmly on the solid side — but never attempt to lift a broken-spring door overhead alone, and never run the opener to force it, which bends tracks and burns out motors.

How much does it cost to fix a garage door that won't open in Toronto?

The cost depends entirely on which of the common causes is behind it: a torsion spring pair (priced by spring type, cycle rating and door weight), a stripped opener gear kit (priced by drive type and part availability), or a snapped cable pair (priced by single-versus-pair scope and drum condition). Describe the symptom in the online form and a technician replies with a free, exact assessment — usual reply time 3–5 minutes.

Can a power outage stop my garage door from opening?

Yes, but usually only briefly. The opener needs mains power, so during an outage you pull the red manual-release cord and lift the door by hand. Two catches: if the door feels extremely heavy, a spring has also failed (commonly noticed for the first time during outages), and after power returns you must re-engage the trolley before the remote works again.

Will a garage door opener still work with a broken spring?

It will try, and that's the problem. The motor strains against the unbalanced door, tripping the force sensor or burning out the motor, and the jamming action can bend a track or crack a panel — turning a spring-only job into a spring, track and panel repair. Unplug the opener and book a spring replacement instead.

How long does it take to repair a garage door that won't open?

Most single-cause repairs are finished within an hour of arrival: spring pairs run 45-60 minutes, gear kits about the same, cables under an hour. Same-day service is standard across Toronto for stuck-open doors; stuck-closed doors with a second vehicle can usually wait a day or two at standard rates.

A closed charcoal garage door on a brick Toronto bungalow at dusk, with a hand pointing a remote from the driveway

Fix-It Guide · Toronto Edition

Why Won't My Garage Door Open? 7 Causes & Fixes

A garage door that won't open always seems to happen when you're already late. Below: the 7 causes in order of likelihood, 5 checks that are safe without tools, and what each fix costs in Toronto — written by the crews who answer these calls.

Last updated September 2026By Marcus Delaney, Lead Service Technician · 14 years on GTA garage doors

Stuck right now? Send a few details — a dispatcher usually names the cause within 3–5 minutes — and a stocked truck fixes 80% of won't-open calls on the first visit.

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Quick Answer

Why Won't My Garage Door Open?

In Toronto service calls, a garage door that won't open is most often a broken torsion spring (loud bang, door suddenly heavy), a stripped opener gear, or a snapped lift cable. Spring replacement is priced by spring type, cycle rating and door weight.

The 7 causes of a garage door that won't open, with tell-tale signs and whether each is DIY-safe
Cause	Tell-tale sign	DIY-safe?
1. Broken torsion or extension spring	Loud bang · door suddenly heavy · gap in the coil	No — call
2. Stripped opener gear	Motor hums · door doesn't budge · lifts fine by hand	No — call
3. Snapped or off-drum cable	Door crooked or jammed · frayed strands at the drum	No — call
4. Trolley in manual mode	Opener runs · trolley slides free · red cord hanging	Yes
5. Power problem: outlet, GFCI or breaker	No lights · no hum · nothing at the wall button	Yes
6. Lock mode engaged	Remote dead · wall button works · light blinks	Yes
7. Track obstruction or bend	Stops at the same spot · visible debris or dented track	Yes

Diagnosis

The 7 Causes, Most to Least Common

Ranked by our 2026 GTA call-out records — each cause gets its own breakdown below.

Danger — read first: the torsion spring runs the full width of the door and stores enough energy to cause serious injury — never try to unwind, wind or release one yourself. If the door is stuck OPEN, lock the man-door, unplug the opener and call same-day.

Broken torsion or extension spring

The #1 cause by a wide margin. You'll hear a loud bang from the garage, the door suddenly feels very heavy, and a visible 2-inch gap opens in the spring coil. The opener strains, lifts a few inches and gives up. Pre-1990 Toronto homes still running original springs are the classic case — cold snaps make aged steel brittle. What we found on a North York bungalow call: original 1988 torsion pair, one snapped clean through, the other so fatigued it was weeks behind. Pair replaced and balanced in under an hour.

Loud bang · door suddenly heavy · gap in the coil

A garage door torsion spring snapped clean through, showing the visible gap between broken coils — Snapped torsion spring — bungalow in North York, March 2026

Professional repair only: this one involves the tensioned spring system.

Stripped opener gear (motor hums, door doesn't move)

The motor hums or whirs but nothing travels — the gear-and-sprocket or trolley inside the opener has stripped its teeth. Quick test: pull the red manual release and lift the door by hand. If it glides, the door is fine and the problem lives inside the opener. A gear-kit repair reuses your motor and rail; a full replacement adds the unit, rail and programming — the right path depends on the unit's age and drive type.

Motor hums · door doesn't budge · lifts fine by hand

A stripped garage door opener gear and sprocket with visibly worn teeth, laid out as a repair kit — Stripped gear-and-sprocket kit — the usual culprit behind a humming opener

Gear-kit repairs fall under our garage door opener repair in Toronto service — stocked gear kits on every truck.

Snapped or off-drum cable

The door jams partway or sits crooked in the opening, and you can see frayed cable strands near the drum. Lift cables share the spring's wear cycle — which is why we replace them together whenever the springs come off. Never touch cables on a tensioned system; they're under the spring's full load.

Door crooked or jammed · frayed strands at the drum

A garage door with visible cable and hardware damage sitting crooked in its tracks — Frayed lift cable let this door twist in its tracks — dual-door home in Scarborough

Professional repair only: this one involves the tensioned spring system.

Trolley in manual mode

Someone pulled the red release cord — usually during a power outage or to free a trapped car. The opener runs, the trolley slides freely, and the two never meet. The fix is 30 seconds and zero tools: slide the door until the trolley arm re-engages with the rail carriage.

Opener runs · trolley slides free · red cord hanging

DIY-safe: the checks above cover this one — follow the steps and it costs you nothing.

Power problem: outlet, GFCI or breaker

No lights, no hum, no click — the opener has no power. Check the outlet first: garage GFCIs trip from moisture, and Toronto thaw weeks are prime time. Reset it, and if it trips again that's an electrician's line, not a door technician's.

No lights · no hum · nothing at the wall button

DIY-safe: the checks above cover this one — follow the steps and it costs you nothing.

Lock mode engaged

The wall console's LOCK (vacation) mode blocks all remotes. The giveaway: the door light blinks when you press the remote and nothing moves. Hold the lock button for about 5 seconds to clear it — a free fix, and comfortably the most embarrassing service call we get.

Remote dead · wall button works · light blinks

DIY-safe: the checks above cover this one — follow the steps and it costs you nothing.

Track obstruction or bend

The door stops hard at the same spot every single time. Look along the tracks for screws, hockey sticks or shifted storage boxes. Small bends in the rail need a pro — hammering a track straight creates razor edges and usually makes the alignment worse.

Stops at the same spot · visible debris or dented track

A garage door technician realigning a sectional door track during a repair visit — Track realignment and roller check — part of every won't-open diagnosis

DIY-safe: the checks above cover this one — follow the steps and it costs you nothing.

Recognise cause #1 — the bang, the heavy door, the gap in the coil? That's a spring job, and it's our most common one: garage door spring repair in Toronto — same-day, stocked trucks, written quote before work starts.

Free & Safe

5 Safe Checks You Can Do in 5 Minutes

No tools, no ladder, nothing near the spring. Each check ends with what its result means — skip straight to the cause it points at.

Wall button vs remote

Press the wall button. If the door responds to the wall but not the remote, it's a remote battery or lock-mode issue — not the door.

Wall works, remote dead → cause #6

Opener lights & LED flashes

Count the opener's LED blinks after a failed attempt: 4 blinks points at the photo-eye sensors, 6 at the motor circuit. The flash pattern is the opener telling you what's wrong.

4 blinks → sensors · 6 blinks → motor

Outlet & GFCI

No lights on the opener at all? Plug a lamp into the same outlet. Garage GFCIs trip from spring thaw moisture — reset and watch whether it holds.

Lamp dead too → cause #5

Trolley engagement

Check the red release cord along the rail. If the trolley carriage is disconnected, slide the door by hand until it clicks back into the rail.

Trolley slides free → cause #4

Visual spring scan — door CLOSED

From inside the garage, door fully closed, standing to the side (never directly beneath), look for a stretched-open gap in the spring coil above the door.

Gap in the coil → cause #1, stop and call

Opener LED flash chart

After a failed cycle, the opener's LED blinks a pattern — it's literally telling you the diagnosis:

1 blinkSafety sensor wiring
2 blinksSensor wires shorted
4 blinksPhoto-eye sensors misaligned or blocked
5 blinksMotor overheated — unplug, wait 30 min
6 blinksMotor circuit failure — service call
Blinks continuouslyLogic board or receiver fault

Patterns above cover common LiftMaster / Chamberlain / Craftsman openers — check your manual for brand variants.

2026 Toronto Pricing

What It Costs to Fix (Toronto, 2026)

Every row traces to our 2026 job records — the technical factors that set each price, installed.

What sets the cost of fixing a garage door that won't open in Toronto, 2026
Fix	Priced by (installed)	Note
Torsion spring pair — installed	Spring type, cycle rating, door weight & pair scope	The most common won't-open repair
Opener gear kit — installed	Drive type, gear-kit availability & rail condition	Stripped gear-and-sprocket, motor reused
Cable pair — installed	Single vs pair, drum wear & spring condition	Usually bundled with springs
Service call + diagnosis	On-site diagnosis time & travel window	Waived when you proceed with the repair
Full opener replacement	Drive type, rail length, battery backup & smart features	When the logic board dies

After-hours dispatch carries a flat surcharge — quoted before the truck rolls, never added after.

Honesty line: quotes should be itemised in writing before work starts. Ours always are.

Most won't-open calls trace back to the spring — and a pair replacement is a stocked-truck, same-day job: garage door spring repair in Toronto. Deeper dive on pricing? See the full spring replacement cost guide with the interactive calculator.

Request Free Service Estimate

Tell us about your garage door issue. We will get back to you with an estimate. Usual reply time: 3-5 minutes.

Hard Lines

When to Stop and Call a Pro

Three stop-signs. Any one of them means the checks are over — we answer 24/7 across Toronto.

Spring damage of any kind

A gap in the coil, a bang you heard, or a door that's suddenly heavy — the spring system stays untouched. That rule has no exceptions.

The door is stuck OPEN

That's a security and weather-exposure problem, not a convenience one. Same-day service is the right call — lock the man-door and unplug the opener meanwhile.

Anything needing tools near the spring

Winding bars, clamps, cable work — if the repair touches a tensioned part, it's a professional's repair, full stop.

Stuck-open door or anything spring-related — emergency crews run 24/7, with a flat dispatch fee quoted up front.

Get an emergency quote

Prevention

Prevent It Next Time

Springs have a 10,000-cycle life — about 7–9 years of daily use. The door doesn't warn you when the count runs out; it just lets go, usually on the coldest week of the year.

An annual tune-up catches fraying cables, dry bearings and fatigued springs first — and re-balances the door so the opener isn't fighting a heavy door every cycle.

Price an annual tune-up

Straight Answers

Garage Door Won't Open: FAQs

The motor-runs question first — it's the one Toronto homeowners ask most.

Stocked trucks · first-visit fix rate 80%

Door Won't Open? We Fix 80% on the First Visit.

Tell us what you see — bang, hum, or silence — and the dispatcher will name the likely cause before booking. Every quote is itemised in writing first, priced by the failed part.

Get Free Quote garage door spring repair in Toronto

Reviewed by Priya Nair, Senior Technician · Prices verified last updated september 2026 against our 2026 job records.