Why Garage Door Springs Break in Winter (Ottawa Cold-Climate)

Why do garage door springs break more often in cold weather?

Garage door springs break more in cold weather because a crack grown over 10,000 cycles reaches its critical size sooner in cold spring steel. A spring already worn from thousands of cycles can no longer absorb the same stress, so it cracks under a normal lift on the first deep-freeze morning.

Two things stack up in an Ottawa winter. First is metal fatigue: every open and close cycles the steel, and most springs are rated for about 10,000 cycles, roughly seven to ten years for an average household. Second is cold embrittlement of spring steel: at Ottawa lows of -25C to -30C, the same hardened steel that bent easily in July loses ductility and snaps instead of stretching. The cold does not wear the spring out, it just picks the exact moment a tired spring finally gives. That is why the loud bang almost always comes on the coldest morning, not a mild one, and why we get our heaviest spring volume from December through February. For the bigger seasonal picture, see the full Ottawa winter garage door guide.

How do I know my garage door spring is broken?

A broken garage door spring shows 4 signs: a 2 to 3 inch gap in the coil, a door that feels dead heavy, an opener that strains while the door barely lifts, and a loud bang heard earlier.

Walk through these signs before you touch the opener. Look up at the torsion spring mounted on the bar above the door header. A healthy spring is one continuous tight coil. A broken one shows a clear 2 to 3 inch gap where the steel separated. On a door with extension springs, the springs run along the horizontal tracks and a break leaves one hanging loose. The other tell is weight: with no spring counterbalance, a double door can weigh over 150 pounds, so lifting by hand feels almost impossible. If your opener hums, jerks, or lifts the door a few inches then stops, the motor is fighting that dead weight. Stop there. A garage door that suddenly will not open after a cold night usually means a snapped spring, though there are other reasons a garage door won’t open in the cold worth ruling out too.

Can I still open my garage door with a broken spring?

You should not. With a broken spring there is nothing to counterbalance the door, so it can weigh over 150 pounds and slam down if your grip slips. Never run the opener against a broken spring, because the dead weight strips gears and can snap a lift cable.

There is one common exception. A single car door often uses a single torsion spring, while many doors and most double doors use two. On a single-car door broken spring setup with two springs, one intact spring may still give you partial, uneven lift, which is why some people think the door “still works.” It does not work safely. The door has lost half its counterbalance, and the surviving spring has the same age and cycle count as the one that broke, so it is close behind. The safest move is to leave the door down, park outside if your car is trapped inside, and call for help. We carry torsion and extension springs in common Ottawa sizes on every truck, so most broken-spring calls are a one-visit fix.

Which spring fails in the cold, torsion or extension?

Both fail in the cold, but torsion springs are the most common to snap loudly on a winter morning. They sit under high constant tension on the shaft above the door, so brittle steel cracks all at once. Extension springs stretch along the tracks and tend to fatigue and lose tension more gradually.

A torsion spring stores energy by twisting on a bar above the door and does the heavy lifting on most modern doors. Its life depends on wire diameter, inside diameter and spring length, and the wind direction, meaning whether it is left-wound or right-wound for its side of the shaft. Get any of those specs wrong on a replacement and the door will be unbalanced, so matching the spring to your exact door matters. Because all that energy is held in one tightly wound coil, a torsion break is sudden and loud, the classic firecracker bang. Extension springs are older-style and run parallel to the horizontal tracks, stretching as the door closes. They fail too, but more often by slowly losing tension or by a clip letting go, so the symptom is a door that gets harder to lift over a few cold days rather than one dramatic bang. Either way, the brittle-steel effect of an Ottawa cold snap is the trigger. We replace both types and always install safety cables on extension springs.

How much does a broken spring cost to fix in Ottawa?

A single torsion spring starts at $275 and a matched pair starts at $400, with parts and labour included. The $35 to $85 service call is waived on any repair over $250, so most spring jobs land with no separate trip fee. There are no overtime or weekend charges.

Here is how the pricing works so there are no surprises. A single torsion spring from $275 covers the part, the install, and rebalancing the door. A spring pair from $400 is the smart choice on a two-spring door, because the second spring has the same age and cycle count and will snap that same winter. Since most spring jobs run over $250, you get a free service call with repair over $250, and we never add overtime fees for a cold-night or weekend visit. For a full breakdown by door size and spring type, see the garage door spring replacement cost in Ottawa. Tell us the door width and whether one spring or two sit above it when you book a broken-spring repair today, and we will arrive with the right springs on the truck.

Why a broken spring is replaced, not repaired

A broken garage door spring is always replaced, never repaired. Spring steel that has failed once cannot be re-wound, welded, or stretched back into a safe, properly tensioned part. The only safe fix is a new spring matched to your door’s exact specs, installed by a trained technician.

There is no patch for a cracked spring. The steel reached the end of its cycle life and lost its temper, so any attempt to reuse it leaves the door dangerously unbalanced and the spring ready to fail again. Replacement also has to match the original wire diameter, inside diameter and spring length, and wind direction, which is why a same-spec swap is technician work, not a parts-store guess. Winding a torsion spring is also where most DIY injuries happen, because the bars can kick back with serious force if the spring is loaded wrong. We size, install, and tension the new spring, then run a balance test so the door holds steady halfway up. Every spring we install is backed by the HUSH 90-day Done-Right guarantee.

How to make garage door springs last through Ottawa winters

Make garage door springs last longer by lubricating them twice a year, keeping the door balanced, and booking a fall tune-up before the deep freeze. You cannot stop steel from aging, but clean, lubricated, well-balanced springs reach the high end of their roughly 10,000 cycle life instead of the low end.

A light coat of garage-door-grade lubricant on the coils sheds moisture and reduces friction between coils, which slows wear. A door that is out of balance forces the spring to work harder on every cycle, so it ages faster, and a balance test catches that early. The single best habit before an Ottawa winter is a seasonal inspection that checks spring tension, cable condition, and door balance while it is still mild out. See winter maintenance that extends spring life for the full checklist. Rural homeowners feel this most, because the coldest mornings hit hardest on large lots, which is why we stock extra springs for same-day broken garage door spring repair across Ottawa, including rural cold pockets like Greely and Manotick.