Know what’s lifting your door—before it fails
Your garage door springs do the heavy lifting every time you open the door. When the spring system is correctly sized and maintained, the door feels balanced, the opener strains less, and your daily routine stays smooth. When springs are worn or misadjusted, doors can get loud, uneven, or suddenly too heavy to lift—creating a real safety risk. This guide breaks down the differences between torsion springs and extension springs, when each system makes sense, and practical maintenance steps Denver-area homeowners and property managers can use to reduce downtime and avoid surprise failures.
Quick overview: how each spring system works
Torsion springs
Torsion springs sit on a steel shaft above the garage door opening. They store energy by twisting as the door closes and release that energy to help lift the door as it opens. This setup tends to lift more evenly and is common on newer installations and heavier doors.
Extension springs
Extension springs run along the horizontal tracks on each side of the door. They store energy by stretching as the door closes. A key safety requirement: extension springs should have a safety cable running through them to help contain the spring if it breaks.
Pros and cons: torsion vs. extension springs
Safety note: A garage door can become extremely heavy if the spring system fails. If your door won’t stay open, suddenly feels “dead weight,” or you hear a loud bang from the garage, stop using the opener and have the system inspected.
Maintenance tips that actually prevent breakdowns
1) Do a monthly “listen and look” pass
Open and close the door and pay attention to changes: new squealing, popping, jerky movement, or a door that “leans” while moving. Small changes are often early warnings of roller wear, cable issues, or a spring system drifting out of balance.
2) Check for extension spring safety cables
If you have extension springs, confirm there’s a steel safety cable running through the center of each spring and anchored securely. If you don’t see one, schedule an update. This is one of the simplest upgrades that materially improves safety.
3) Lubricate the right parts (and avoid the wrong ones)
Use a garage-door-rated lubricant on hinges, rollers (if they have bearings), and the torsion spring coil (light application). Avoid heavy grease that traps dust. Also avoid spraying lubricant directly into the opener motor or onto the tracks; tracks are meant to be clean, not slick.
4) Do a basic balance test (only if it’s safe to do so)
With the door closed, pull the manual release (only when the door is fully down) and lift the door to about waist height. A properly balanced door should stay near that position. If it drops quickly or shoots upward, the spring tension may be incorrect or components may be worn. Reconnect the opener afterward. If the door feels unusually heavy, stop and call a professional—forcing it can damage the opener and create a safety hazard.
5) Plan for cycle life, not just “age”
Springs wear out based on cycles (one open + one close). Many residential springs are built around a baseline cycle rating, and high-use doors (busy households, workshops, small warehouses) can burn through that rating faster than expected. Preventive maintenance helps you catch wear early—before you’re stuck with a door that won’t open when you’re trying to leave for work.
When to repair vs. when to upgrade the spring system
If your extension-spring door is working well and has properly installed safety cables, keeping it maintained can be a perfectly reasonable plan. That said, an upgrade to a torsion system can make sense if:
A qualified technician can confirm the correct spring sizing based on door weight, height, drum type, and track configuration—details that are easy to get wrong with guesswork.
Denver, Colorado angle: what local conditions do to springs
Along the Denver Metro area, temperature swings, dry air, and dusty conditions can accelerate noise and wear—especially on rollers, hinges, and bearings. Winter cold can make already-dry components sound louder and feel “stiffer,” while summer heat cycles can highlight balance issues on heavier doors. If your garage is attached to a heated space or used as a workshop, that daily temperature variation can be even more pronounced.
Practical local tip: keep a simple routine—clean the lower track area, listen for changes, and schedule preventive maintenance before winter hits. That’s when “it’s been fine for years” problems tend to show up at the worst time.
Need a spring inspection or safer setup?
Griswold Overhead Door & Construction serves Denver and surrounding areas with repairs, preventive maintenance, and emergency support for garage doors, gates, and dock equipment. If you’re hearing new noises, dealing with a door that won’t balance, or you’re unsure which spring system you have, a quick inspection can prevent a bigger failure.
If you manage multiple doors (commercial bays, warehouses, or mixed-use properties), preventive maintenance plans can reduce after-hours calls and help standardize performance across your sites.
FAQ: garage door torsion and extension springs
How can I tell which spring type I have?
Look above the door opening. If you see a long metal coil on a shaft, that’s torsion. If you see springs running along the upper side tracks (one on each side), that’s extension.
What are common signs a spring is failing?
A loud bang, a door that suddenly feels extremely heavy, a door that won’t stay open, uneven lifting, cables that look slack, or the opener struggling more than usual are all red flags.
Is it safe to use my opener if a spring is broken?
No. A broken spring can cause the opener to strain, damage the door, or create a situation where the door drops unexpectedly. Pause use and schedule service.
Do extension springs always need safety cables?
Yes—safety cables are the standard safety measure intended to restrain the spring if it breaks. If you don’t have them, it’s worth correcting.
How often should I do maintenance?
A quick monthly visual/listening check helps catch issues early. For many residential doors, a professional tune-up on a routine schedule is a good way to keep the door balanced, lubricated, and safe—especially for high-use doors or properties where downtime matters.