Garage Door Rollers: How to Tell They're Worn and What to Do

Question 01

What do garage door rollers do, and does my door have them?

Rollers are the wheels on the side of each panel of a sectional door. They run inside the steel tracks as the door lifts and closes. Steel-Line says they move within the tracks to open and close the door. A roller door is different. Its curtain slides in guides and rolls onto a drum.

B&D describes its Panelift sectional doors as having multiple hinges, rollers and tracks, and says squeaking on them often points to dry hinges or worn rollers. Its Roll-A-Door roller doors, by contrast, use curtain tracks that need regular cleaning. So if your door is one steel sheet that coils up at the top, this guide's roller advice mostly doesn't apply. The guides, the drum and the spring tension matter more.

On a roller door, Thom re-tensions the springs, replaces worn bearings and straightens or replaces bent guides. Heavy roller door and spring tension explains that side of things. Not sure which door you have? Roller vs sectional vs tilt shows the difference.

Question 02

What are the signs of worn garage door rollers?

Grinding or scraping as the door moves, a roller that wobbles on its stem, wheels that are cracked, chipped, bent or rusted, and a door that shudders or runs unevenly. Both B&D and Steel-Line name worn rollers as a cause of scraping and grinding, whether the rollers are steel or nylon.

Look at the rollers with the door shut and the opener switched off at the power point. Look at each wheel and its stem. You're checking for cracks, chips, rust and wobble. Look, don't pull. For other sounds, such as pops and bangs from the springs, see what garage door noises mean.

Question 03

Is it a worn roller or a bent track?

Look at where the noise or the catch happens. As a rough guide, noise along the whole run points to the rollers, and a catch at the same spot each time points to the track. Look closely at both. B&D says bent tracks, often from impacts or general wear, can block the rollers' path and cause grinding.

• Same spot every time: a dent or kink in the track. Look along the track for a bend, a gap or a loose bracket.
• Noise all the way up and down: usually the rollers, or dry tracks and hinges.
• Rough after a knock from the car: a bent track or panel is likely.
• Only one side is noisy or catching: check the rollers and track on that side, and the cable. A slack cable is a stop-and-call fault.

Often it's both. B&D's advice is to inspect the rollers for wear and, if they look damaged, have them professionally replaced, with the tracks checked for bending at the same time. B&D also lists major track damage or realignment as a job for a qualified technician. Don't try to bend a track back yourself.

Question 04

Nylon or steel garage door rollers: which is better?

Steel-Line doesn't rank one above the other, but it says they wear in different ways. Steel-Line says nylon rollers can crack and chip, whereas steel rollers may become bent, and that dust, debris and rust wear both kinds down over time. The right roller is the one the door's maker specifies for that door and track.

Steel-Line says garage door rollers last 7 to 15 years, depending on the material. How long yours last also depends on grit, salt and use. The garage door lifespan guide puts rollers alongside springs, cables and openers.

Question 05

How do you lubricate garage door rollers?

Clean first, then lubricate lightly and only where your door's maker says to. B&D's tips name silicone spray on the rollers and tracks, and an all-purpose machine oil on steel rollers twice a year, but not on nylon ones. Steel-Line's maintenance advice says don't lubricate tracks. Your door's manual settles it.

1. 01Close the door fully and switch the opener off at the power point, so nobody runs it while your hands are near the rollers.
2. 02Wipe the grit, sand and leaves out of the tracks and off the rollers with a dry cloth.
3. 03Check the door's manual for the lubricant its maker names. B&D's guides mention silicone spray and an all-purpose machine oil such as RP7. Steel-Line's mentions a 30 W or other light household oil.
4. 04Oil steel rollers lightly at the wheel axle bearing, which Steel-Line's maintenance guide says to lubricate. Don't put machine oil on nylon rollers: B&D says to oil rollers only if they're steel.
5. 05Wipe off the extra. B&D says excess oil collects dust.
6. 06Switch the opener back on and run the door a few times. If it still grinds, stop and book a look.

B&D is clear about grease.B&D's quieter-door tips say use a silicone spray only and avoid grease, and B&D says never put grease or oil on a roller door's guide tracks, because it attracts dirt and makes a paste that speeds up wear. For which product suits a door near the coast, see salt air and garage door rust.

Question 06

Can I replace garage door rollers myself?

Not safely, in most cases. The bottom rollers sit in the brackets the lift cables hook onto, and those are under spring tension. Clopay, a US door maker, warns that springs and related hardware are under extreme tension and could cause severe injury or death if mishandled. Leave roller replacement to a technician.

What you can do is the light work. B&D lists cleaning, basic lubrication and tightening loose hardware as safe for an owner, and puts any repair involving the spring system with a qualified technician. On Deadlock's own advice, keeping the tracks clear and wiping grit off the rollers are fine for an owner too.

A door off its track is a different story. A door comes off its track when a roller jumps out or a cable lets go. Thom takes the weight off safely, refits the door and replaces any bent track or worn rollers as part of garage door repairs. If it's off its track and stuck open, 24/7 emergency repairs cover it.

Question 07

Why do garage door rollers wear faster near the beach?

Salt, sand and grit. Sand and leaves roll into the tracks and make the rollers work harder, which wears them faster. Steel-Line says dust, debris and rust cause friction that wears both metal and nylon rollers. Close to the beach, steel rollers and their bearings also have salt air working on them.

That's why Deadlock suggests a service every 6 to 9 months for homes on the beach side or the canals, because salt and sand speed up wear on springs, cables and rollers. Further inland, once a year suits most homes. Between visits, a wipe of the tracks and rollers with the door shut keeps the grit down.

Thom services doors right along the coast, including Buddina, Minyama and Twin Waters. Every garage door service covers five checks, and roller and track lubrication is one of them.

Question 08

What does garage door roller replacement involve?

Thom checks the whole door first, then tells you what's wrong and what the fix involves. If the rollers are worn, he swaps them and tightens loose hinges and brackets. Parts such as rollers are quoted separately before work begins, so you know what you're agreeing to before he starts.

Repairs and servicing are booked as a callout valued between $200 and $300, depending on the door size and the labour involved. The service and repair costs guide explains what the callout covers.

Booked work runs 6am to 6pm, seven days, with 24/7 emergency callouts. Call 0402 882 653 or book a callout, and tell Thom what the door is doing: the noise, where it catches, and whether a roller looks cracked or bent.