Garage Door guides you can watch.
Short video walkthroughs of the garage door maintenance jobs every San Diego homeowner should know. Each guide comes with step-by-step instructions and a clear line on when to call a pro.
What garage door maintenance can you do yourself?
Test your garage door safety sensors (monthly)
The photo-eye sensors six inches off the ground are the only thing stopping the door from closing on a kid, pet, or car.
Replace the bottom weather seal
The rubber U-seal at the base stops drafts, water, rodents, and dust. Worn seals are obvious — swap in 20 minutes.
Reset your garage door opener after a power blip
After an SDG&E blip or new battery, the opener often needs a quick reset before the remote works again.
Program a new garage door remote or keypad
Lost the remote or moved in with nothing to clip to the visor? Five minutes, one step stool, and you're done.
When should you stop and call a professional?
Six signs that the problem is past DIY. Turn the system off and pick up the phone — running a system with these issues turns cheap repairs into expensive replacements.
- A torsion spring has snapped (loud bang, door too heavy to lift)
A loaded torsion spring holds 150–200 lbs of tension. DIY replacement with the wrong winding bars kills and maims people every year. $240–$520 installed and it's done in under an hour.
- The door is off the tracks
Even if you can re-seat one roller, the tracks are usually bent or the panel is warped. Forcing it up can crush a hand or wreck the entire door. Get it professionally realigned.
- A cable has frayed or snapped
Cables hold part of the load that springs don't. A snapped cable means the door is one spring failure away from slamming down. $180–$340 for matched-pair cable replacement.
- The opener hums but nothing moves
Usually a seized drive gear, failed capacitor, or stripped trolley. Running it in this state strips additional parts. Unplug the opener and call.
- A panel is dented or damaged from a bumper
Panels can be replaced individually — don't let anyone tell you that you need a whole new door for one dent. Color-matched single-panel swap runs $350–$900.
- The door closes and reverses on its own
Sensor misalignment, a bent track, or a failing down-limit switch. Fix it before the safety system quits entirely — that's the scenario where doors close on kids or pets.
What Garage Door rebates and resources are available?
California SB-969 Battery Backup Requirement
Every residential garage door opener installed in CA since July 2019 must include a battery backup. Summary and code text.
CPSCUL 325 Safety Sensor Standard
Federal safety standard requiring photo-eye sensors on every garage door opener since 1993. Overview and testing requirements.
Consumer ReportsConsumer Reports — Garage Door Opener Buying Guide
Independent reviews of belt-drive, chain-drive, and screw-drive openers with real-world reliability data.
CSLBCSLB License Lookup
Verify any California contractor's license — ours is CA C-61/D-28. Never hire a contractor whose license you can't verify.
Still stuck? Call a real technician.
If the guide didn't solve it, we probably can. Flat-rate diagnostic, same-day service across San Diego County.