Garage door maintenance checklist

By Heather Window & Door · 11 September 2026

Watch one cycle, properly

Stand inside, off to one side, and run the door up and down once while actually paying attention. Most developing faults announce themselves here long before they strand anybody.

• Does it move evenly Both sides rising together, no hesitation, no jerk at one point in the travel.
• Does it sound the same as it used to New grinding, a new thump, a new squeal. Change matters more than volume.
• Does it land softly A door that slams down is a balance question.
• Do the cables stay taut Slack cable, or a cable coming off its drum, means stop.
• Is anything rubbing A roller against the track edge, a section against the stop molding.
• Is the opener straining A motor working hard on a door that used to be easy is the clearest early warning there is.

The two safety tests worth doing yourself

These are the ones that matter, because they are the systems that stop a closing door on a person.

• The reverse test: with the door open, lay a solid block of wood flat on the floor in the door’s path and close the door. When it touches the block it should stop and go back up. If it does not, stop using the door and call.
• The photo-eye test: start the door closing and pass a broom handle through the beam near the floor, keeping your hands out of the opening. The door should stop and reverse.

All of these are on the safety check we do on every visit too — auto-reverse tested, photo-eyes aligned, springs and cables inspected, door balanced — but they are quick, and between visits they are the ones genuinely worth your time.

There is a third, and it is the most informative thing you can do to a garage door. Close it, pull the release cord hanging from the trolley to disconnect the opener, and lift the door by hand. A correctly balanced door lifts with modest effort. Raise it to about waist height, let go, and watch what it does.

• It holds position The springs are doing their job. This is what balanced means.
• It drifts down The springs are losing tension and are on their way out.
• It shoots up The springs are over-tensioned, which is its own problem.
• It is enormously heavy A spring has probably broken. Stop there, leave the door down, and do not run the opener — see why springs break in batches.

Everything the opener does depends on the springs having already balanced the door, which is why an unbalanced door is what kills openers. People replace the opener without ever finding out what killed it.

Cleaning and lubrication

• Hinges and roller stems A product made for garage doors, sparingly, on the moving metal.
• The spring, lightly A coating helps against rust. Never adjust, loosen or attempt to wind it.
• Not the track The track guides the rollers; it is not a bearing surface. Grease there collects grit.
• The photo-eye lenses A soft dry cloth. This single act prevents a large share of “won’t close” calls.
• The bottom seal and the track channel Sweep out leaves, grit and the gravel that wedges under the seal.
• Bolts and brackets Snug, not over-tightened — over-tightening pulls hardware through the section.

Your own door’s maker publishes a care document for its own product line, and that document is the one to follow for intervals and products. Clopay and Raynor both keep homeowner care pages, linked below, and the line name on your door is what finds the right one.

What never to touch, and why

The springs above the door, the cables running down each side, the drums they wind onto and the bottom brackets at the door’s corners are one system holding a few hundred pounds in tension. Undoing any part of it releases that energy somewhere.

Door balance belongs on the same list: testing it means disconnecting the door from the opener and holding its full weight, which is a fine thing for a technician with the door closed and a poor idea otherwise.

A tune-up visit is the version of this list we do: the safety check (auto-reverse, photo-eyes, springs and cables, door balance), plus adjusting the door and the opener and lubricating the moving parts. Anything found broken is quoted separately on the estimate.

Sources

1. Clopay — residential garage door service and support
2. Raynor — garage door safety and care
3. DASMA — Technical Data Sheets (Door & Access Systems Manufacturers Association)
4. Amarr — residential garage door FAQs

All sources read 8 September 2026. Linked so you can check them rather than take our word for it.

Written from the manufacturers’ own published guidance — every source is linked above.

Describe it however makes sense to you

Read enough? Tell us about the door.

However you describe it is enough — no part names needed. The visit and the written estimate cost you nothing, and nothing starts until you approve the number.

• However you describe it is enough. No part names needed.
• The written estimate is free. Nothing owed if you pass.
• Nobody starts the repair until you approve the number.