

Repairs · Toronto
Garage Door Tune-Up
You pulled the red cord to lift the door by hand during a power cut and it felt like lifting a car.
In plain words
What you receive from a tune-up is a door that runs better and a written picture of its condition. The technician records what was tightened, lubricated and adjusted, how the balance and reversal tests came out, and which parts are still healthy, which are worth watching and which have reached the point of a separate repair quote. That record turns the next visit into a comparison instead of a fresh start, and it lets you describe a new sound precisely when it appears. Maintenance and repair stay two different decisions, and you make the second one with the facts in front of you.
How the visit goesTwice this week the door started closing, stopped a metre from the floor and reopened on its own. One of the little sensor lights near the floor blinks instead of glowing steady, and the wall button has to be held to close it.
Garage Door Tune-Up
How the visit goes


Watching one full cycle first
Before a wrench comes out, the technician stands clear of the opening and runs the door all the way up and all the way down. They are listening and watching at the same time: where the squeal starts, whether the sections shake at a particular height, whether the door hesitates at the curve of the track, how it lands on the floor, and whether the opener labours or hums. Each observation is tied to a spot on the door or a point in the travel. That map guides the hands-on inspection that follows and gives a fair comparison at the end, when the same cycle is run again after the work.
Seals and the threshold
Rubber and vinyl get a silicone spray, never a petroleum product, which attacks the material. A bottom seal that is torn or has flattened can be replaced in the same visit if stock is on hand: the old length is drawn out of the retainer, the retainer is cleaned, and the new astragal is fed in and trimmed to width. Jamb and header weatherstrip that has gone hard or split is renewed so the door closes against a flexible edge and stops rattling in wind. Where the threshold holds water, the technician points out the low spot and suggests keeping it clear of ice, since a seal frozen to the slab is the usual winter casualty.
Balance you can feel with one hand
Before leaving, the technician shows you how to check the balance yourself: pull the red release with the door closed, lift the door by its handle, and feel it rise easily, stay open and hold still partway. Knowing what a balanced door feels like is the single most useful thing a homeowner can take from a tune-up, because a door that starts to sink or grow heavy over the coming year is telling you the springs are tiring, long before the opener fails. If the balance was found wanting on this visit, the operator is taken out of service until the spring work is done, and that finding is in your record with a separate quote.
Garage Door Tune-Up
In the van
Replacement hinges
Bottom seal (astragal)
Jamb and header weatherstrip
Socket set and drivers
Replacement steel or nylon rollers

Garage Door Tune-Up
What affects the quote
Balance findings
If the balance test shows the springs have lost tension, spring adjustment or replacement is a separate job with its own quote rather than part of the maintenance visit.
Number of doors
Two or three doors on the same property are usually serviced in one visit, and the second and third door are quoted at a different rate from the first because the travel is shared.
Time since the last service
A door serviced last year needs a lighter touch than one that has never been looked at, where every fastener may want attention and the sensors and limits are far from where they should be.
What to have ready
- Do both sensor lights near the floor glow steady, or does one blink?
- What have you noticed: noise, shaking, hesitation, slamming, or reversing on its own?
- Is the door a single or a double, and what is it made of?
Garage Door Tune-Up: questions
QuestionsWhy does my door struggle in cold weather?
Cold affects several things at once. Old lubricant thickens into a drag on every hinge and bearing. Steel contracts slightly, so a track that was snug becomes tight. Rubber seals stiffen and the bottom seal can freeze to the slab. The opener then reads all this extra resistance as an obstruction and stops or reverses. A fall tune-up with a low-temperature lubricant, silicone on the seals and correctly set force goes a long way toward smooth winter mornings.
My door has a lock bar. Should it be used with an opener?
Not while the opener is connected. If the slide lock is engaged and someone presses the remote, the opener pulls against a locked door and can bend the top section or strip its gear. On a door driven by an opener the lock is usually disabled or removed during a tune-up, and the opener's own hold on the door provides the security. If you want a manual lock for holidays, the technician can show you how to use it safely with the opener unplugged.
What kind of doors and openers do you service?
Residential sectional doors of every common construction: steel, insulated steel, aluminum and glass, wood and composite, single and double width, with torsion springs above the header or extension springs beside the horizontal tracks. Openers of all the usual types are covered too, including chain drive, belt drive, screw drive and wall-mounted jackshaft units. If the door is a one-piece tilt-up or a commercial rolling door, mention that when booking so the right hardware comes along.
Related services

- Off-Track Garage Door ResetA delivery van backed into the shop's overhead door this afternoon.
- Garage Door Panel ReplacementYou misjudged the last metre of the driveway and felt the bumper meet the door.
- Garage Door Bottom Seal ReplacementWith the door closed and the lights off, a bright line of daylight runs along the floor from one side to the other.