For a warehouse, auto shop, or loading dock, a failed overhead door is not an inconvenience — it is stopped revenue. The good news: most commercial door failures are predictable and preventable. Here is the maintenance checklist we recommend to GTA businesses.
Monthly: quick visual checks (10 minutes)
- Watch and listen to a full open-close cycle — jerky travel, scraping, or new noises are early warnings.
- Inspect cables for fraying near the bottom brackets (do not touch — visual only).
- Check rollers and hinges for cracks and wobble.
- Test the safety reversal and photo-eyes on powered doors.
- Clear the tracks of debris; confirm they are not bent from forklift or vehicle contact.
Quarterly: lubrication and hardware
- Lubricate springs, rollers, hinges and bearings with a garage-door-rated lubricant.
- Tighten track brackets, hinge screws and strut bolts loosened by vibration.
- Check weather seals — damaged seals cost you heat and invite pests.
Annually: professional service
Once a year (twice for high-cycle doors), have a technician test door balance, inspect and adjust spring tension, check the opener drive and force settings, and document everything for your maintenance records. High-cycle springs and springless commercial door systems are worth discussing if a door is a single point of failure for your operation.
The downtime math
A planned annual service visit costs a fraction of one emergency call — and nothing compared to a dock door stuck shut on shipping day. Preventive maintenance is simply cheaper than downtime.
Monthly checks your own staff can do
Run the door through a full cycle and listen: grinding, scraping or a door that hesitates is worth logging. Look at the bottom seal and the side seals for tears and daylight. Check that the safety edge or the photo eyes stop and reverse the door when something is in the way. Look at the cables for fraying at the bottom bracket. Look at the track for dents from forklifts and pallet jacks, which are the number one cause of commercial door damage. Write it down with a date. A logbook turns a surprise failure into a scheduled repair.
What a professional service visit covers
A technician checks the door balance with the opener disconnected, inspects and tensions the springs, checks cable wear and drum seating, replaces worn rollers, tightens and aligns the track, lubricates hinges and bearings, tests every safety device, and confirms the opener’s force and travel limits. On high-cycle doors the springs are logged against their cycle rating so replacement is planned rather than reactive. On a loading dock door, the seal and the weatherstrip are checked because a torn seal on a refrigerated dock costs far more in energy than the repair.
Why a maintenance contract pays for itself
A commercial door that fails during a shift stops a loading dock, blocks a bay, or leaves a building unsecured overnight. The cost of that hour is normally far above the cost of the visit that would have caught the worn cable a month earlier. A scheduled contract sets a visit interval based on how many cycles the door does, puts the door on a spring-replacement calendar, and gives you a known number for the year instead of an emergency invoice. For roll-up steel doors and high-cycle sectional doors, we set that interval with you based on actual use.
Book commercial service in the GTA
Pro Entry Garage Doors services commercial and industrial doors across Burlington, Hamilton, Mississauga and the GTA, with priority same-day response for businesses. Call 416-666-6745 to set up a maintenance schedule for your facility.