Repairs to LiftMaster, Chamberlain and Genie openers in London, Ontario are booked the same day from the branch at 1003 Farnham Rd in Westmount: (226) 270-9715, or the contact form with a photo of the label on the motor head. Below are 4 London situations, and in most of them the opener is fine.
A door frozen to the floor
Snow that melts against the door on a mild afternoon runs down to the bottom seal and freezes overnight. By morning the door is fixed to the slab. A newer opener reads the ice as an obstruction and stops, lights flashing; an older one keeps pulling until a bracket tears out of the top section.
Pull the red cord and try the door by hand. If the bottom edge is held, free it with a plastic scraper or a de-icer, never hot water, which refreezes. If it then lifts freely and the opener still will not move it, that is an opener repair. If it is heavy rather than stuck, stop: that is a spring, and not an owner's job. The cure is at the floor, on London's installation page.
The learn button picks the remote
In Hyde Park, Sunningdale, Summerside or Talbot Village the unit on the ceiling is often the one that came with the house, and when a fob goes missing or a new car's built-in button will not pair, the answer is on the unit. LiftMaster and Chamberlain put a learn button on the back or right side of the motor head, near the hanging antenna wire. Round and yellow is Security+ 2.0. Purple, which fades to brown, is Security+ at 315 MHz; red, which fades to orange, is Security+ at 390 MHz. Round and white marks Security+ 3.0 on the newest heads.
Most remotes are built for one colour and only universal ones, such as Chamberlain's CHU62, span several, so read the button and then buy, or send a photo of it and the van carries the right fob. When the remotes and the wall button have both stopped, suspect the logic board, and the opener repair page weighs that job.
Detached garages: the power comes from the house
Behind the older houses of Wortley Village, Old South and Old East Village the garage is often a separate building at the back of the lot, and as a rule its circuit comes from the house. When the opener does nothing at all, look indoors first: a tripped breaker in the main panel cuts the garage with nothing out there looking wrong. Then find the ground-fault outlet in the garage, which trips in the damp and needs its reset pressed. If the head's light works and the wall button does nothing, suspect the button or its wire, which runs further here and sits in the cold.
After a summer thunderstorm
Federal lightning statistics count 94,647 cloud-to-ground flashes within 25 km of London from 1999 to 2018, an average of 44.1 days a year with lightning, against 40.5 for Toronto. Chamberlain says some surge protection is built into its openers, and its add-on protector, the CLSS1C in Canada, covers the power line, the wall control and the safety reversing sensors.
Those are the places to look after a storm. With the breaker and the ground-fault outlet live and the head still dark, the logic board is next, and a board is replaceable on most units. A dead wall button with working remotes points to the button and its wire; a door that opens and will not close points to the sensors. London Hydro's outage advice is to unplug appliances and electronics against surges, and an opener is one: unplug it while the power is out, if the ceiling outlet can be reached safely.
Towns the London branch drives to
St. Thomas is about 30 km south, Strathroy about 40 km west, Woodstock about 50 km east on the 401, and Sarnia about 100 km out on the 402. Give the town when booking; the drive sets the window.
Everything we do in London · Garage door opener repair: what the job involves
Everything else we repair and install
Every one below has a page of its own, written the same way this one was.

Garage door spring repair
Broken garage door springs? We replace torsion and extension springs safely and professionally to get your garage door working properly again.
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Garage door parts
Springs, cables, drums, rollers, hinges, brackets, seals and opener parts. What is on the truck, what is matched to the specific door, and what is not a DIY part.
Learn more
Garage doors
Steel, aluminium and glass, wood and composite garage doors from Garaga, Amarr and Stanley. What the material, the layers and the insulation actually change.
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Garage door installation
Headroom, backroom and track type decide which doors will physically fit an opening. What an installation involves, and why the springs are sized to the new door.
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Garage door replacement
Panel damage, rust at the bottom section, repeated failures and an uninsulated door on a heated garage. The four cases where replacing beats another repair.
Learn more
Garage door openers
Chain, belt, screw and wall-mount openers from LiftMaster, Chamberlain and Genie. How drive type and horsepower are chosen, and when an opener is worth repairing.
Learn moreAsked before booking garage door opener repair
Answered for London, on the number this branch answers.
The door will not open on a cold morning and the opener is flashing. Is it broken?
Often not. Yesterday's meltwater has frozen along the bottom seal, and the opener is reading the ice as an obstruction. Pull the red cord and try the door by hand. If the bottom is stuck, free the seal with a plastic scraper or a de-icer rather than hot water, which refreezes. If the door is heavy rather than stuck, stop and book a spring repair instead.
Which remote will pair with the opener on the ceiling?
The learn button on the motor head, near the antenna wire, decides it. On LiftMaster and Chamberlain units round yellow is Security+ 2.0, purple is Security+ at 315 MHz, red or orange is Security+ at 390 MHz, and round white is Security+ 3.0 on the newest heads. Most remotes are built for one colour and only universal ones, such as the CHU62, span several, so read the button, or send a photo of it, and then buy.
The opener went dead in a thunderstorm. Is it finished?
Not necessarily. Look at the breaker and the ground-fault outlet first. If both are live and the head is still dark, the logic board is next, and a board is replaceable on most units. London averages 44.1 days a year with lightning on the federal count, and Chamberlain sells a surge protector, the CLSS1C in Canada, for the power line, the wall control and the sensors.
Talk to Protech Garage Doors today
Call (226) 270-9715, or email info@protechgarage.ca for a new-door quote with no rush.
