# How much to repair a single steel garage door? Last reviewed: 2026-08-20 Reviewed by [The GarageDude Editorial Desk](https://garagedude.shop/authors/editorial-team/) Published garage door prices vary widely by region, door size and material, and the estimate sites disagree with each other. Rather than repeat a national average we cannot source, get two written local quotes and compare them line by line. Ask what is parts, what is labour, and what the warranty covers. US default Steel Gauge scale Lower = thicker Compare on Tested U-factor Test standard ANSI/DASMA 105 ## The short version - Steel gauge is inverse: 24 gauge is thicker and more dent-resistant than 27. - Wood needs refinishing on a cycle and gains weight as it absorbs moisture. - Aluminium resists rust, which matters in coastal air, but dents easily. - Material choice changes door weight, and door weight decides the spring. - DASMA reports whole-door performance as a tested U-factor under ANSI/DASMA 105. ## How does a garage door actually hold its own weight? A garage door is not lifted by the opener — it is lifted by the spring, and the opener only guides it. A residential door weighs 85 to 400 pounds, and the counterbalance holds that weight so the motor only has to overcome friction. That is why springs and cables are professional work while sensors and remotes are not: one group holds the stored energy and the other does not. [Garage door safety](https://garagedude.shop/safety/) covers the balance test and what an unbalanced door does to an opener. ## What is the one-minute test everyone should be doing? The reversal test, monthly, with a 2x4 laid flat in the door's path: it must reverse on contact. If it does not, stop using the opener until it is adjusted, repaired or replaced. It matters because this system fails silently — a door whose reversal has stopped working looks and sounds exactly like one that still does. CPSC recommends inspecting the door and opener every 30 days. [Children, pets and the garage door](https://garagedude.shop/safety/child-safety/) covers why the standard exists. ## At what point should I stop and call someone? - The door is very heavy by hand with the opener disconnected. The counterbalance has failed. - You can see a gap in the spring coil , or a cable that is frayed, slack, or off its drum. - The door sits crooked , higher on one side, or has come off its track. It is still under full tension. - The door does not reverse on the board test. The entrapment protection is not working. None of those is calling too early, and the rule worth teaching at home comes from that same federal text: “NEVER GO UNDER A STOPPED PARTIALLY OPEN DOOR.” ## Questions that come up next ### Does a door that reverses mean something is broken? No — the opposite. A door that stops and goes back up when it touches something is the entrapment protection doing exactly what 16 CFR 1211 requires. The fault worth investigating is a door that fails to reverse. ### Can I disable the photo eyes to get the door closed? No. That removes the external entrapment protection required since 1993, and it is the protection that exists because of the CPSC child fatality record. If a sensor is genuinely faulty, replace it — it is among the cheapest parts on the door. ### Is it safe to use the emergency release with the door open? The federally required manual text says to use it only when the door is closed wherever possible, because weak or broken springs may allow the door to fall rapidly. A great deal of DIY content advises the opposite. ### Should I replace one spring or both? If the door has two, quote both. The second is the same age and has taken the same number of cycles, so it is next. This is one of the few upsells in the trade that is genuinely honest. ## Common mistakes - Comparing one door's R-value against another's U-factor. DASMA states the two methods are not comparable and are not reciprocals of each other. - Buying wood without budgeting the upkeep. The finish schedule is part of the cost, and a neglected wood door gains weight and sags. - Ignoring weight when changing material. A heavier door on the old spring is an unbalanced door, which is a safety problem, not a nuisance. ## Related questions - [Garage door safety](https://garagedude.shop/safety/) - [Door materials](https://garagedude.shop/questions/door-materials/) - [Can i paint the aluminum trim around garage door?](https://garagedude.shop/questions/door-materials/can-i-paint-the-aluminum-trim-around-garage-door/) - [Can the wood frame around a garage door be replaced?](https://garagedude.shop/questions/door-materials/can-the-wood-frame-around-a-garage-door-be-replaced/) - [Can you just replace wood with aluminum garage doors?](https://garagedude.shop/questions/door-materials/can-you-just-replace-wood-with-aluminum-garage-doors/) - [Does paint stick to vinyl garage doore?](https://garagedude.shop/questions/door-materials/does-paint-stick-to-vinyl-garage-doore/) - [Does painting a steel garage door void the warenty?](https://garagedude.shop/questions/door-materials/does-painting-a-steel-garage-door-void-the-warenty/) - [How do wooden garage doors open?](https://garagedude.shop/questions/door-materials/how-do-wooden-garage-doors-open/) ## Sources - [Technical Data Sheet 163 — U-factor and R-value for Residential and Commercial Garage Doors](https://www.dasma.com/wp-content/uploads/2022/09/TDS163..pdf) — DASMA Tier 2 accessed 2026-08-17 - [Technical Data Sheet 196 — U-factor and the DASMA Thermal Performance Verification Program](https://www.dasma.com/wp-content/uploads/2025/01/TDS-196.pdf) — DASMA Tier 2 accessed 2026-08-17 - [Door and Access Systems Manufacturers Association — technical data sheets](https://www.dasma.com/technical-data-sheets/) — DASMA Tier 2