Garage Door
Garage door repair: what is safe to touch, and what it costs
One line runs through every fault on this page: stored tension. Sensors, tracks, remotes and limits are yours. Springs and cables are not, and the reason is mechanical rather than legal.
24/7 dispatch network
Request a licensed contractor now
Fire, a gas smell, or an injury? Leave the building and call 911 first, then your gas utility or power company. Use this form once you are safe.
The stakes, in real numbers
Why the first ten minutes matter
Every figure is sourced
- 0
- home electrical fires a year in the US
- 0h
- window before mold can start after water damage
- 0+
- US deaths a year from consumer-product carbon monoxide
- $0
- damage from just one inch of flood water
Source: ESFI
Source: EPA
Source: CPSC
Source: NFIP
Garage door repair splits cleanly along one line: stored tension. Sensors, tracks, remotes and limit settings are homeowner work, while the springs that counterbalance a door weighing well over a hundred pounds are not, and torsion spring replacement runs about $300 to $540 installed.
Everything below is organised around that boundary, because the search results for this topic are not.
Before you call anyone
Four steps that sort almost every fault
- 01
Name the symptom
Will not close, will not open, reverses part way, or visibly off its track. Each one has a short and different list of causes.
- 02
Check for stored tension
A loud bang, a visible gap in a spring coil, or a door that lifts crooked means springs. That is where the DIY line sits, and it is not negotiable.
- 03
Work the free checks
Sensor alignment, lens cleaning, remote batteries, lock mode, breaker position and lubrication. Between them they resolve a large share of calls.
- 04
Price it before you book
Ask whether a spring quote covers one or a pair, whether the service call fee is credited, and what warranty covers the part and the labour.
The line that matters: stored tension
Which garage door repairs are safe to do yourself?
Anything that does not involve the counterbalance system. Sensor alignment, remote programming, lubrication, track cleaning and limit adjustment are homeowner tasks. Springs, cables, drums and anything holding the weight of the door are professional work.
A torsion spring is wound under enough tension to lift a door most people cannot comfortably carry. Released uncontrolled, that energy goes somewhere, and the somewhere is usually the person holding the tool.
Why this warning is stronger than most
The organic results for garage door spring repair are dominated by videos titled around saving hundreds of dollars, several of which walk viewers through torsion spring work with improvised tools. The saving is real and so is the mechanism. This is the one repair on the site where we recommend against DIY without qualification.
Why your door will not close: sensors first
Two photoelectric sensors face each other across the opening, mounted within six inches of the floor. Break that beam and the opener refuses to close, by design and by federal requirement.
A knocked bracket, a cobweb, a fogged lens or low winter sun landing on the receiver all count as breaking the beam. The opener normally reports it by blinking its light in a repeated pattern, which is a diagnostic code rather than a general complaint.
The full procedure is on our page on garage door sensor alignment, including what the LED colours mean by brand.
Why your door will not open
Listen before you look, because the sound sorts this in one step.
- Silence. Power, a tripped breaker, lock or vacation mode on the wall control, or remote batteries.
- Motor runs, door stays put. The trolley is disengaged, usually because the red release cord was pulled at some point.
- Motor strains, door lifts an inch. A broken spring. Stop, and do not keep trying.
What UL 325 and the CPSC actually require
The safety systems people find inconvenient exist because of a documented history.
CPSC records dozens of child entrapment deaths under automatic garage doors through the 1980s, which led to federal requirements that openers reverse when a closing door meets an obstruction. Since 1992 residential openers have also had to carry entrapment protection devices such as photoelectric sensors, mounted low enough to catch a child rather than a car.
That history is the reason bypassing a sensor is the wrong answer to a door that will not close, even when the fault is genuinely a dirty lens.
In this guide
Everything in the garage door guide
Garage door won't close
Almost always the photo eyes. What the blinking opener light is telling you, and the afternoon sun case.
Garage door sensor alignment
Watch the indicator LED, not the aim. Plus the causes that look like misalignment and are not.
Garage door won't open
Three sounds, three faults. Silence, a motor with no movement, or a strain that means stop.
How to open a garage door manually
The emergency release done safely, the outside case answered honestly, and the one rule that prevents injury.
How to reset a garage door opener
What a reset fixes and what it never will. Brand differences, rolling codes and the new homeowner case.
Broken garage door spring
Confirm it in ten seconds, then stop using the opener. What running it anyway actually costs.
Garage door spring replacement cost
Parts against installed price, why a pair is standard, and how to read a quote that looks too cheap.
Garage door off track
Disconnect the opener first. Why an off-track door can fall, and when a cable rather than a roller is the cause.
What garage door repair actually costs
Indicative US ranges. Always get a written quote.
| Job | Typical range | Notes |
|---|---|---|
| Torsion spring replacement | $300–$540 installed | Average around $420, pair recommended |
| Extension spring replacement | $300–$400 installed | Lighter doors, different geometry |
| Spring parts alone | $80–$120 torsion | Extension springs $20–$60 |
| Opener replacement, chain drive | $250–$400 installed | The budget end of the range |
| Opener replacement, belt drive | $270–$550 installed | Quieter, common upgrade |
| Opener replacement, wall mount | $400–$700 installed | Jackshaft units, high-lift doors |
Source: This Old House 2026 garage door spring cost data and HomeGuide garage door opener installation cost data (retrieved August 2026). Figures vary by region, severity and after-hours timing.
Figures last checked
The third row is the one installer pages leave out. Parts are a small fraction of the installed price on a spring job, and the gap is the winding and balancing labour rather than a margin on hardware.
Our breakdown of spring replacement cost goes through how to read a quote, including when a cheap one is a warning.
Springs: why this one is not a DIY job
Torsion springs sit on a shaft above the door and are wound to a specific tension for that door's weight.
Winding them requires bars of the correct diameter and a technique that keeps the energy under control at every stage. Get it wrong and the bar becomes a projectile. That is the mechanism, and it is why even sources that generally favour DIY draw the line here.
Springs are also replaced in pairs as standard practice, for a reason that is not an upsell: both have completed the same number of cycles, so the survivor is usually close behind the one that failed.
Tracks, rollers and a door off its track
A door that has jumped its track is hanging on fewer rollers and cables than the system was designed around.
Disconnect the opener before anything else, because running it against a jammed door bends track and tears brackets. Then leave the door alone. Our page on a garage door off its track covers why a snapped cable is a different repair from a worn roller.
Cold weather and the seasonal faults
A garage door that only misbehaves in winter is usually not broken.
Cold thickens the grease on rollers and hinges, metal contracts slightly, and the force required to move the door rises. An opener sitting near the edge of its force setting fails first in a cold snap, and reads the extra resistance as an obstruction.
Lubricating before the season and a small seasonal force adjustment resolve most of it. None of the ranking pages for these symptoms mention weather at all.
24/7 dispatch network
Get a licensed garage door technician
Tell us what the door is doing and your ZIP code. Licensed, insured garage door technicians covering your area will contact you directly. Submitting costs nothing and there is no obligation to hire.
Fire, a gas smell, or an injury? Leave the building and call 911 first, then your gas utility or power company. Use this form once you are safe.
Know the line
Safe to do yourself, or call a technician?
Safe to check yourself
- Realigning safety sensors and cleaning their lenses
- Reprogramming remotes and keypads
- Lubricating rollers, hinges and the opener rail
- Checking the breaker and the lock mode
- Small travel limit adjustments, tested between each
Call a pro now
- Any torsion or extension spring work
- Lift cables, drums and the shaft
- A door that has come off its track
- A door that will not stay up when lifted by hand
- Opener logic board and receiver faults
What you can safely do yourself
The homeowner list is longer than installer pages suggest, and it resolves a real share of service calls.
Sensors, remotes, keypads, batteries, lock mode, lubrication and lens cleaning cost nothing and take minutes. Anything that stays wrong after all of those is worth a technician, and by then you can describe the fault precisely, which shortens the visit.
Questions worth asking before you book
- Is the service call fee credited against the repair?
- Is a spring price for one or a pair?
- What cycle rating is being fitted?
- What warranty covers the part and the labour?
- Are cables and rollers being checked at the same time?
- Is the total confirmed in writing before work starts?
How to open a stuck door in an emergency
The red cord hanging from the opener rail disengages the trolley so the door moves by hand.
Pull it only with the door fully closed. On a partly open door with a failed spring, the opener is the only thing holding the weight, and disconnecting it lets the door drop. Full detail, including the outside-access case, is on our guide to opening a garage door manually.
What homeowners actually ask
What owners report
Drawn from real public forum threads and reported prices, summarised and attributed as patterns. These are not reviews of this site, and no names or ratings have been invented.
“My garage door does not close by itself anymore. Is...”
“Garage door spring snapped in half. Seeking advice”
“CPSC has required entrapment protection devices such as photoelectric sensors on residential openers since 1992”
1 / 3
The two forum threads sit at opposite ends of this topic. One resolves with a two minute sensor adjustment, the other with a technician visit, and telling them apart in the first minute is most of what this guide is for.
How the matching works, and what we do not do
Emergency Services 24H is a referral service. We do not employ garage door technicians, we do not perform repairs, and we do not sell springs or openers.
Your request routes by ZIP code to licensed, insured technicians covering your area, and they contact you directly. Every cost figure on this page is a published third-party range rather than a quote for your door.
Straight answers
Frequently asked questions
The questions homeowners actually search for on this problem, answered in plain language.
Browse all guidesWhat is the most common garage door repair?
Sensor alignment and broken springs, in that order by frequency. Photo eyes knocked out of alignment account for a large share of doors that will not close, and they cost nothing to fix. Springs are the most common part failure and the one job that genuinely needs a professional.
What is the average cost of fixing a garage door?
Torsion spring replacement runs about $300 to $540 installed with an average near $420, extension springs about $300 to $400, and opener replacement about $300 to $900 installed depending on drive type. Sensor and remote issues are frequently free to resolve.
Can I replace a garage door spring myself?
It is strongly discouraged. Torsion springs are wound under extreme tension and releasing one without winding bars and the correct technique can cause serious injury. This is the one garage door job where the professional recommendation is close to unanimous, including from sources that otherwise favour DIY.
Why will my garage door not close when nothing is in the way?
Almost always the safety sensors. The photo eyes sit within six inches of the floor on each side, and a knocked bracket, a dirty lens, a cobweb or direct low sunlight is enough to break the beam. The opener light usually blinks a code when this is the cause.
Is it safe to use a garage door with a broken spring?
No. The spring counterbalances the weight of the door, so with one broken the opener is lifting a load it was never designed for and the door can drop. Leave it down, use the emergency release if you must move it manually, and get it looked at.
Do you employ the technicians?
No. Emergency Services 24H is a referral service. We route your request by ZIP code to licensed, insured garage door technicians covering your area, and they contact you directly. We do not perform repairs and we do not sell parts.
Sources for this page
- U.S. Consumer Product Safety Commission: Entrapment protection and photoelectric sensors on residential garage door openers
- U.S. Federal Register: Safety Standard for Automatic Residential Garage Door Operators, 16 CFR 1211 (UL 325, 7th ed.)
- This Old House
- HomeGuide
Checked . If a figure here no longer matches its source, that is a bug, so tell us and we will correct it.
24/7 dispatch network
Get help from a licensed local contractor
Tell us what has failed and where you are. We route your request to licensed, insured contractors covering your ZIP code, and they contact you directly.
Fire, a gas smell, or an injury? Leave the building and call 911 first, then your gas utility or power company. Use this form once you are safe.