Garage door repair in Cranbourne & the City of Casey.

• Broken spring (torsion or extension): $250–$550 supplied and fitted, same-day. We upgrade builder-grade 10,000-cycle springs to 25,000-cycle commercial-grade as a standard inclusion — the next failure is 15+ years away.
• Snapped cable: $200–$400. Cables fray and break around the drum. Often happens at the same time as a spring failure because the door has been operated on a broken spring.
• Door off-track: $250–$500. Worn rollers let the door drop, or a car has clipped the door. Re-seat, re-align, replace worn rollers. If panel damage we discuss replacement options on site.
• Bottom-panel rust / replacement: $550–$900 single panel. Colour-matched to existing door if still available, or a deliberate contrast strip if the colour’s been discontinued.
• Bent panel (car damage): $400–$1,800 depending on how many panels and whether the track is also bent.
• Safety sensor re-alignment: $99–$180. Often combined with another visit and effectively free.
• Opener limit-switch / drive-gear / capacitor: $250–$500. Worth fixing on a sub-10-year-old opener; usually we recommend full opener replacement on anything older.
• Track re-alignment after slab movement: $180–$280. Class M reactive clay shifts garage slabs — tracks need re-plumbing every 5–10 years.
• Remote re-coding / new remotes: $80–$160 per remote. Lost remotes, lockout, after-sale.

Emergency call-out priority.

Broken-spring jobs and stuck-door jobs (car trapped inside) get same-day priority across the inner Casey ring (Cranbourne, Berwick, Narre Warren, Hampton Park, Endeavour Hills) Monday to Saturday if you call before 2pm. After-hours emergency call-out available (broken spring, stuck door, security risk after a break-in attempt) at a $179 call-out vs the standard $99.

Why DIY spring repair is dangerous.

Garage door torsion springs hold 200–400 newton-metres of stored energy when wound. If they slip during DIY replacement they break bones — commonly wrist, forearm or fingers. The cheap spring kits on eBay don’t come with the proper winding bars, and the YouTube tutorials usually skip the safety cables. This is one job not to attempt yourself. We replace springs every day with proper tooling, in 30–60 minutes, for $250–$550 fitted including the upgrade to commercial-grade.

Diagnosis: motor vs spring vs cable vs sensor.

Confusing failure modes — door won’t open, won’t close, opens partway, makes a grinding noise. Quick triage we run through on the phone:

• Opener hums but door doesn’t move — usually a broken spring (motor can’t lift the dead weight) or stripped drive gear (the gear has worn down). Both common, both 1-hour fixes.
• Door starts then stops — usually a limit-switch out of calibration, or the opener’s force-sensitivity has detected a fake obstruction. 10-minute recalibration.
• Door closes then reverses — almost always a safety-sensor alignment problem or something blocking the beam. 10-minute fix.
• Door bangs when opening — rollers worn, or door off-track. Worth a service visit before it gets worse.
• Remote doesn’t work but wall button does — usually a flat remote battery (try replacing first, then the antenna alignment on the opener).