Garage Door Spring Repair
Counterbalance tension, bearings and shaft hardware corrected on intact springs.
View detailsGarage Door Spring Replacement Whitby
Snapped torsion and extension springs renewed as correctly matched sets.
What's involved
Garage Door Spring Replacement
When a counterbalance spring fails it usually announces itself: a bang loud enough to be heard through the house, then a door that will not lift or lifts only a few inches before stalling. A fractured torsion spring shows a visible gap in the coils; a failed extension spring hangs slack alongside the horizontal track. Replacement is not simply fitting a similar-looking spring. Wire size, inside diameter, length and wind direction all have to match the door's weight and travel, and on a two-spring system both springs are treated as a set.
- Diagnosed before quotedWe identify the actual fault rather than replacing parts on assumption.
- Confirmed by emailSubmit the form and we reply with your appointment window and details.
Symptoms
Signs You Need This Service
- A visible gap has appeared in the coils of a torsion spring.
- A loud bang from the garage was followed by a door that will not lift.
- The opener hums and strains but the door barely moves.
- The door feels far heavier by hand than it did last week.
- An extension spring is hanging loose beside the horizontal track.
Repair or replace?
A correctly specified spring set, fitted as a matched pair and wound to the right turn count, gives service measured in cycles rather than seasons: several years of heavy daily use, longer where the garage is a secondary entrance. Replacing both springs on a two-spring door is standard practice because the surviving spring has completed the same cycle count as the one that broke. Bearings, drums and cables are inspected at the same time, since they are inexpensive relative to a second visit and they are what the new springs will be working through.
Not sure this is your problem?
Work through the symptom first — some of these turn out to need no technician at all.
Root causes
What Actually Goes Wrong
Cycle fatigue
Every open and close winds and unwinds the steel. Springs are rated in cycles, and a household that uses the garage as its main entrance can reach that rating in a handful of years rather than a decade.
Corrosion between the coils
Moisture sitting between coils pits the wire and creates the stress point where the break starts. Unheated garages and doors that pass wet vehicles daily see this most.
Undersized from the start
A spring sized for a lighter door, or a heavier insulated door hung on the original spring set, means the steel has been working outside its intended range from day one.
Cold cycling
Steel is less forgiving at low temperature, and a marginal spring is most likely to break on the first cycle of a cold morning rather than in the middle of a mild afternoon.
Local conditions
Why This Matters in Whitby
Whitby's dwelling profile explains why this is the most common call in the older half of the Town. Of 46,460 occupied dwellings, 3,810 date from 1960 or earlier and 7,700 from the 1961-1980 wave, and those two groups are where original extension-spring systems and long-serving torsion sets still turn up. Lynde Creek and West Lynde sit squarely in that band. At the other end, the 1990s peak of 8,910 dwellings, concentrated in areas such as Rolling Acres, is now reaching a second replacement rather than a first. Cold matters: with a January daily minimum near -8.5 C at the nearest official station, breaks cluster in the coldest weeks.
Safety
What to Handle Yourself
This is the highest-energy job on a residential garage door. A wound spring can release its stored energy in a fraction of a second, and the tools used matter as much as the technique: correctly sized winding bars, nothing improvised. Do not attempt to replace a torsion spring yourself, do not loosen a cone under load, and do not work under a door with a broken spring. On extension-spring systems, containment cables must run through the springs so a break cannot become a projectile. Report the symptom through the form and leave the door closed.
The visit
How We Work Through It
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Establish what the door actually needs
The door's weight and travel are established, and the existing spring wire size, inside diameter, length and wind are measured. Matching what was there is only correct if what was there was right.
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Release and remove safely
The door is secured, the operator disconnected, and any remaining tension released in a controlled sequence with winding bars before the old springs, and their cones, come off the shaft.
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Fit a matched set
New springs of the correct specification are fitted as a pair on a two-spring door, with bearings and drums inspected and renewed if worn, and cables checked and rewound evenly on both drums.
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Wind, balance and reset
Springs are wound to the calculated turn count, the door is balance-tested by hand across full travel, and the operator's force and travel settings are reset before the safety reversal is tested.
Questions
Garage Door Spring Replacement FAQs
Only one spring broke. Why replace both?
Because both have done the same work. Springs on a two-spring door are wound and unwound together, cycle for cycle, so the survivor is typically close to the end of its own life. Pairing a new spring with a fatigued one also gives unequal support, which loads one drum and one side of the top section harder than the other. Replacing the pair costs less than a second visit and leaves both springs documented as the same size and age.
Can I open the door in the meantime?
It is better not to. With a broken spring the door's full weight is on the cables, the drums and the operator, and lifting it by hand or by motor risks a cable jumping a drum, a section bending, or the door dropping. If a vehicle has to come out, say so in the request so freeing it can be planned as part of the visit rather than attempted with the door in an unsupported state.
Should an extension-spring system be converted to torsion?
It is worth considering when the door is being worked on anyway. A torsion system is easier to balance precisely, keeps the springs above the opening rather than alongside the track, and is simpler to adjust in future. Whether it fits depends on the headroom above the opening and the condition of the header that would carry the centre bracket, both of which are measurable on site. Where conversion is not practical, containment cables through the existing springs are the minimum standard.
How long will new springs last in an unheated garage?
Life is still counted in cycles, but a cold, damp garage shortens it by attacking the steel rather than the tension. Moisture sitting between coils pits the wire and creates the stress point where a break will eventually start. Keeping the coils dry and lightly lubricated with a product rated for low temperature, and keeping meltwater away from the threshold, is what extends life in a detached or unheated Whitby garage.
Available everywhere we serve
Garage Door Spring Replacement Across Whitby
Book Garage Door Spring Replacement
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Service area
Where We Work
Garage Door Spring Replacement is available across every Whitby neighbourhood inside the area below.
Map data © Google. Pin shows the service area, not a walk-in location — all work is done at your home.
From the tools
A real callout, not stock imagery.
A sectional door pulled off its tracks, taken down and supported on site so it could be checked and re-hung safely — photographed on the job.