If The door starts to close, then reverses and the opener light blinks.
Then Photo-eye alignment.
The sensors near the floor are out of line or dirty; a clean and re-aim usually restores normal closing.

Cold thickens grease, steel contracts, and a spring that was tired in the autumn lets go in the middle of a freeze. We service garage doors in Waterloo for the seasons they actually live through, with cold-rated lubricants, bottom seals that stay flexible below zero, and hardware that stands up to road salt.
Same fees day or night · Waterloo
Pick the closest, or call (226) 806-0825
Repair & MaintenanceInspection, adjustment, sealing, and section-level repairs.
Springs & HardwareCounterbalance, track, roller, cable, and hinge work.
Openers & AccessOperators, safety sensors, controls, and access systems.
Installation & UpgradesResidential and commercial replacement, upgrades, sectional-door, and rolling-door work.Our commercial customers in Waterloo run shops, warehouses and service bays that depend on their doors. We set up maintenance visits at intervals that suit the door's cycle count, keep records of the springs and operators on each door, and turn up with the right parts so downtime stays short.
Nearby Lakeshore Village, Westmount, Beechwood, Maple Hills and Rummelhardt
Every part checked, every cycle tested.
23 years in business · Send us a message: (226) 806-0825
Waterloo
Owners of older homes in Waterloo often need work on extension springs, wood doors and early openers, while newer homes tend to need torsion springs, belt-drive openers and insulated steel panels. We service both generations of door, and the pages below explain what applies to yours.

Garage Door Panel Replacement, Garage Door Safety Inspection, Garage Door Bottom Seal Replacement, Photo-Eye…
Tap a situation. The answer opens here.
If The door starts to close, then reverses and the opener light blinks.
Then Photo-eye alignment.
The sensors near the floor are out of line or dirty; a clean and re-aim usually restores normal closing.
If The door touches the floor and pops back open.
Then Close-limit adjustment.
The opener thinks it hit something; setting the travel limit correctly stops the bounce.
If The door closes but leaves a gap along the bottom.
Then Bottom seal and limit setting.
A compressed seal or a short travel limit leaves daylight; both are simple to correct. Garage Door Bottom Seal Replacement
WaterlooOntario
Every square is one home in a hundred.
The date, the door and opener model numbers, the spring type and dimensions, and a line for each component with its condition. Findings are sorted into in good order, maintenance done, planned repair and stop-use. Measurements such as seal gaps, track spacing and photo-eye height are recorded, and photographs of anything worth showing are attached. It is written so a future technician can quote from it and a future inspection can compare against it.
An inspection looks and reports; a tune-up looks, reports and then does the maintenance. Both begin with an observed cycle and a check of hardware, balance, sensors and reversal. A tune-up goes on to tighten fasteners, lubricate the moving points, adjust the opener and align the photo-eyes, and it may swap a worn roller or a bottom seal on the spot. If you want the door serviced rather than assessed, the tune-up is the one to book.
A strut is a horizontal steel stiffener fastened across the inside of a section to keep it from bowing. Wide doors, top sections where the opener arm pulls, and bottom sections that take knocks are the usual places for them. If your damaged section had a strut, the new one gets a straight strut refitted or replaced. If a top section bowed because it never had one, adding a strut is part of putting it right.
Sometimes. Many insulated doors have the seal channel moulded into a plastic cap that wraps the bottom rail, which takes a specific profile rather than a generic one. If that cap is cracked or the channel has opened, a screw-on aluminum retainer can be fitted over the rail so a standard T-style or bulb seal can be used from then on. Identifying the retainer at the first look settles which route applies.
On-site assessment
Arrange a proper look at your door in Waterloo.
(226) 806-0825, open 24/7.
On-site assessment preferred · (226) 806-0825, open 24/7