Skip to content
FairhavenGarage Door ServicesOpen 24/7 (289) 804-2651
Two coiled extension springs with looped ends, two black pulleys and a loop of steel cable on a worn wooden workbench. — Extension Spring Replacement, Pine Point

Springs · Pine Point

Extension Spring Replacement

You pulled the red cord to open the door during a power cut and it barely moved. Lifting it took your whole weight, and when you let go it came down hard.

In plain words

Every extension spring should carry a containment cable, and replacement is the moment to make sure yours do. A containment cable runs through the centre of the spring and is anchored at both ends, to the rear hanger and to the bracket at the front of the track. It does no lifting; its purpose is to hold a spring that breaks so the pieces stay on the cable. Many older doors predate this practice, which a home inspection checklist checks for. When springs are replaced, new containment cables are fitted with them, which keeps a broken spring's pieces contained, not the door's weight, balance or safety.

Sound familiar?Pine Point

The call
Open the door by hand and it drifts back down on its own, a little at first and then all at once. Nothing is broken that you can see, but the springs along the tracks look tired, rusty and slightly sagging.

NextHow the visit goes

Extension Spring Replacement · Pine Point

How the visit goes

Pair of cast metal cable drums, two coiled steel cables, locking pliers, a combination wrench and red-handled cutters on a wooden bench. — Pine Point
  1. Scene 1

    Weighing the door

    Extension springs are chosen by the weight they are built to lift, so the door is weighed rather than guessed at. With the opener released and the springs disconnected or slack, the technician lowers the door onto a scale set on the floor under the bottom section and reads the figure. That number, together with the door's height, sets the spring rating and stretch length. The old springs are measured as a cross-check, but the scale wins if the two disagree, because a door can gain weight from new panels, insulation or a cladding added since the springs went on.

  2. Scene 2

    Setting both sides to the same hole

    The initial tension is set with the door open and clamped, so the technician is adjusting slack springs rather than loaded ones. Each cable's S-hook is placed in a hole on the hanger, or its clip set to a mark, and the two sides are put at the same position. The cables are drawn to the same snugness so that neither corner of the door is being pulled ahead of the other. A level across the top section confirms the door is square in its tracks. Only when both sides read the same do the clamps come off and the door come down for its first balance check.

  3. Scene 3

    Checking the balance yourself

    You can confirm the springs are still doing their share without going near them. With the door closed and nobody in the opening, pull the opener's red release cord so the trolley lets go of the door. Lift the door by its handle to roughly hip height and take your hands away. A door on good springs stays about where it is; if it sinks to the floor the springs have weakened, and if it rises on its own they are pulling harder than the door weighs. Either way it is a call rather than a job for you. Reconnect the opener the way your manual describes, usually by running it once.

In the van

  • Extension springs, matched pair
  • Rear spring hangers and angle iron
  • Containment (safety) cables
  • Pulleys (sheaves) and forks
  • Lift cables

What shapes the quoteFairhaven Garage Door Services

Corroded fasteners
In an unheated garage the bolts through pulley forks and hanger brackets rust solid; freeing or cutting them and fitting new hardware takes time and shows in the parts list.
Getting the van to the garage
A detached garage down a shared laneway, a rural property or a building with the bay behind a gate takes more time to reach and set up in, and the quote allows for that.
Converting to torsion instead
Where the garage has the headroom, some owners take the opportunity to move to a torsion system. That is a different job with different hardware and is quoted as its own option.

FeesSame any hour

Have it ready

Before you call · 0 / 3

(289) 804-2651

What to expect, in questions

Would a stronger spring make the door easier to lift?

Not in a useful way. The aim is a spring that matches the door's weight, so the door holds still wherever you leave it. A spring rated above that weight pulls the door up on its own, makes it hard to close, and leans on the opener to hold it down. A spring rated below lets it sink. Matched springs, set to the same hook position, give the light, even feel you want.

What if the spring hanger has pulled loose from the ceiling?

It is put right as part of the job. The rear hanger takes the full pull of the spring on every cycle, and lag screws driven into thin plywood, a split joist or drywall work loose over the years, which is often why a door slowly goes out of balance. The technician re-fixes the hanger with fresh lag screws into solid framing, or adds a length of angle iron to reach it, before the new springs are hung.

How long do extension springs last?

Springs are rated in cycles, one cycle being a full open and close, and a standard set is built for a number in the ten-thousand range. A door used four times a day gets through that in several years; a door used a few times a week takes far longer. An unheated, damp garage shortens the figure through rust. Regular lubrication and a door kept in balance stretch it out.

Pine Pointinformation

TorontoOntario

Town
Pine Point, Toronto
In business
26 years
Hours
Open 24/7
Nights, weekends and holidays, same fees
Visits
On-site assessment preferred. Request a visit or call.

2021 census: what it means at the door

Every square is one home in a hundred.

  • 58 in 100 homes · older homes
  • About 58% of homes in Toronto were built in 1980 or earlier, according to the 2021 Census.In a mature neighbourhood the garage door is often the single largest feature of the front elevation, so keeping the original look matters. Modern insulated doors come in raised-panel and carriage styles that echo the older designs while running on today's torsion hardware.
  • Single-detached houses make up about 23% of homes in Toronto (2021 Census).Where housing is mostly attached, the common garage entrance may be a rolling grille or heavy sectional door with access by fob or remote, managed by the property. We service these operators, safety edges and photo-eyes, and coordinate with management so residents keep their access throughout.

Source: Statistics Canada, Census Profile

Open Pine Point in Google Maps

On-site assessment

Request a visit.

You pulled the red cord to open the door during a power cut and it barely moved.

(289) 804-2651, open 24/7.