Springs · Toronto
Torsion Spring Replacement
You heard a sharp bang from the garage, and now the opener hums for a second and gives up.
In plain words
The finished result is a door that behaves the way a good garage door should: it lifts by hand with light effort, stays where you leave it at mid-height, closes softly and lets the opener run with little strain. Reaching that point involves measuring the door, choosing a matched spring, winding it to the correct turns and testing the balance through the full travel. The technician then runs the opener's reversal test and lubricates the moving parts. You are left with a record of the spring installed, so future service starts from known specifications.
How the visit goesOn a cold morning the remote does nothing useful: the light comes on, the motor turns briefly, the door stays shut. There may be a fresh crack in a rusty coil, and flakes of orange on the floor below the shaft.
Torsion Spring Replacement
How the visit goes
Making the door safe to work on
Before anything is measured or removed, the door and the opener are put into a controlled state. The opener is unplugged and the trolley released so the motor cannot move the door partway through the job. The door is brought fully closed, and locking pliers or clamps are set on the track just above a roller so the door stays down while spring tension changes. The technician clears the space beneath the shaft, checks that people and pets are out of the garage, and looks at where a vehicle sits so the ladder and winding position are safe.
Setting the cables and drums
A balanced door depends on both cables pulling equally, so drum work gets careful attention. Each lift cable is wound into the grooves of its drum with the loop secured on the drum pin, and the drums are slid firmly against the end bearing plates. The technician rotates the shaft to take up slack, then sets tension so both cables are equally taut with the door fully closed; a level across the shaft confirms it is sitting true. Drum set screws are tightened to the shaft in this position. Even cable tension keeps the door square in its tracks through every part of its travel.
Through the seasons
The new spring has been set for the door as it is today, and the seasons are part of its life. Cold mornings make steel and grease a little stiffer, so the door may feel marginally slower in deep winter while still balanced; lubrication in autumn helps. Slush and road salt carried in on tires settle on the bottom brackets and cable ends, so a rinse and a light spray in spring slow corrosion where the cables anchor. Summer humidity is easier on hardware but rewards a dry, clean track. Small seasonal habits like these let the spring reach its full rated cycle count.
Torsion Spring Replacement
In the van
End bearing plates
Stationary cone bolts and nuts
Locking pliers for the track
Garage-door spring lubricant
Winding bars
Torsion Spring Replacement
What affects the quote
Drum type and lift configuration
Standard-lift drums are the common case. High-lift, vertical-lift or low-headroom arrangements use different drums, cable lengths and turn counts, which changes the parts and the time involved.
Converting from extension springs
Moving a door from extension springs to a torsion system adds a shaft, bearings, drums and brackets, and removes the old pulleys, which is a broader job than replacing an existing torsion spring.
Door size and weight
A double-width door, a solid wood door or a thick insulated door weighs far more than a single-width steel panel, calling for heavier wire, longer coils or more springs to balance it.
What to have ready
- Can you send a photo of the spring area and the opener?
- About how many times a day does the door open and close?
- Are the cables on either side still tight, or hanging loose?
Torsion Spring Replacement: questions
QuestionsWhat is the difference between torsion and extension springs?
Torsion springs mount on a shaft above the door and twist to store energy, lifting the door through cables and drums. Extension springs run alongside the horizontal tracks and stretch as the door closes, pulling it up through pulleys. Torsion systems tend to lift more evenly, take up less space beside the tracks and are the standard on most modern doors. Both are professional service items because of the energy they hold.
What about a garage with very little space above the door?
Low-headroom garages use a different arrangement: the spring assembly may be mounted at the rear of the horizontal tracks, or special low-headroom drums and track bring the door up with less clearance. Replacement follows the same principles, but the drums, cable routing and turn count differ. The technician identifies the system on arrival and brings hardware that suits it, so the door balances correctly in the space available.
Can a spring be adjusted rather than replaced?
A spring that is intact but has relaxed slightly can be given a little more tension, within limits, to restore balance; this is a normal adjustment on a door that has settled. A spring with a broken coil is replaced as a unit, since the wire has reached the end of its life. The technician checks the condition of the steel and recommends whichever restores a balanced, safe door.
Related services
- Garage Door Hinge ReplacementOn the old wood door, one hinge has pulled away from the panel, dragging a screw and a chunk of soft timber with it.
- Garage Door Track Repair or ReplacementHalfway up, the door lurches and one roller rides onto the lip of the channel.
- Garage Door Cable ReplacementThere was a sharp crack from the garage, and when you went to look the door had dropped on one side and jammed.