Commercial sectional and rolling steel doors take thousands of cycles a year and plenty of forklift traffic. We service them with heavy-duty springs, industrial operators and hardware chosen for the duty they actually do, and plan the work around your hours.
From the shop
Springs and cables are under a great deal of tension, and the proper way to handle them is well understood: the right winding bars, the door clamped, the tension released in steps. That care is simply how the job is done. It is also why our repairs hold and why the door runs true afterwards.
— Thorton Woods Garage Door Experts
Hours
Garage door services
One noisy door can wake a household. One stuck door can hold up a whole morning. Our services are organized around fixing what stops you, and around the maintenance that keeps it from happening again.
Repairs
Winter finds every weak spot. A bottom seal that has cracked lets the cold pour in, a stiff roller drags in the frost, and a door frozen to the slab strains the opener.
Springs
Balanced doors are lighter on everything: the opener, the hinges, the rollers and the arms of anyone who has to lift them in a power cut. The spring and cable work here is how that balance is set and kept.
Openers
Sometimes the motor is fine and the trolley is the problem: worn, cracked or disconnected from the rail. Other times the rail itself has bent.
New Doors
New construction, full replacement and layout changes. We handle the whole installation, from measuring the rough opening to programming the remotes on the finished door.
Insulated Steel Garage Door Installation
Wind-Rated Garage Door Replacement
Carriage-House Garage Door Installation
Full-View Glass Garage Door Installation
New-Construction Garage Door Installation
Commercial Sectional Door Repair
Commercial Rolling Door Repair
High-Lift Garage Door ConversionOshawa
Torsion Spring Replacement
The door starts to rise, gets about the height of your knee, then shudders and reverses. The opener sounds strained, and the top section flexes as the trolley pulls on it, because the motor is doing work the spring used to do.
Torsion Spring ReplacementUsuallyCable and drum reset.
WhyOne cable has usually slipped off its drum; the door needs to be secured before it is re-seated.
UsuallyOff-track door reset.
WhyWe lift the section back into the track and look for what forced the roller out.
UsuallyTrack re-anchoring.
WhyFresh lag bolts into solid framing, and a check that the track spacing is still correct.
UsuallyTorsion Spring Replacement
WhyThe heart of this service is matching, not just swapping.
UsuallyExtension Spring Replacement
WhyWhat you have afterwards is a door that behaves like a much lighter object.
UsuallyGarage Door Balance Adjustment
WhyWhat you get back is a door that lifts with light, even effort and a written note of how it was set.
Open 24/7
Off-track doors are really two problems in one, and the reset addresses both. The first is the visible one: a roller outside its rail and a door out of square.
1 of 3
A new noise, a hesitation, a gap at the bottom. Small observations point us to the right part before we even arrive.
2 of 3
We show you what we find as we find it: the worn cable, the tired spring, the sensor out of line. No mystery about the cause.
3 of 3
The repair is completed, the door tested through full travel, and the result demonstrated so you know exactly what changed.
Durham, Ontario
2021 census · what it means at the door
59%Older homes
About 59% of homes in Oshawa were built in 1980 or earlier, according to the 2021 Census.
Extension springs are common on older doors, and they should carry a safety cable through the middle so a broken spring is held rather than flung. Adding those cables is a small job the technician checks for and offers on any older door he services.
56%
Single-detached houses make up about 56% of homes in Oshawa (2021 Census).
In areas mixing houses with townhouses and condos, a technician often works on several doors on one street, some owned outright and some looked after by management. Scheduling them together saves everyone time, and we are glad to plan a visit that covers the group.
The usual causes are an impact from a vehicle, a lifting cable that broke or slipped off its drum, ice holding the door to the floor while the opener pulled, an obstruction under the door, worn rollers that no longer hold in the rail, or track brackets that have loosened from the wall. Finding which one applies is the first part of the visit, because the reset is only durable once the cause is corrected.
A door that sits tilted almost always has a lifting cable that has gone slack, unwound from its drum or broken on the low side. The springs are still pulling on the other side, which is why the door racks and the rollers escape. Leave it where it is; levelling it means handling the springs and rewinding both cables evenly, which is done with the door clamped and the tension controlled.
A single escaped roller on a sound door with no cable trouble is usually done in well under an hour once the door is secured. A door that has racked with slack cables, several rollers out and a bent hinge takes longer because the springs are unwound, cables rewound and hardware replaced before the rollers go back. A vehicle strike that needs new track is the longest version. You get an estimate of time on arrival.
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.
It is a built-in stopgap, not a repair. When the sensor circuit is not satisfied, many openers allow a close from the wall control only while the button is held, on the idea that a person standing there can see the doorway. Newer units drop that behaviour altogether and simply hold the door open. Either way the door is telling you the beam has failed, and a sensor visit puts remote closing back.
On-site assessment preferred
Get a quote on a new door. Send us a message.
Open 24/7 · same fees any hour
On-site assessment preferred · (289) 512-9681 · open 24/7
