Rockville, MD · Garage Door Service
Rockville homes built 1948-2014 carry torsion springs that weren't sized for our cold snaps. Here's what actually happens when one lets go and what to do next.
You hit the opener button and nothing moves, or the door lurches up a few inches and stops dead. Nine times out of ten on a cold morning, that's a torsion spring that let go overnight. Steel contracts as it cools, and a spring that's been flexing thousands of times over a decade or more finally gives right when the temperature drops hard. Rockville sits in a cold-severe climate band, and most of the housing stock here dates from 1948 to 2014, with a lot of it built in the 1960s and 70s. That means a large share of the springs doing daily work in this area are original or close to it, sized for a door and a climate assumption from decades ago. When one snaps, you'll usually hear it first, a loud bang from the garage, sometimes mistaken for a car backfiring outside. After that, the door is dead weight and the opener isn't strong enough to lift it alone.
Some homeowners try to keep using the door after a spring breaks, forcing it up by hand or leaning harder on the opener. Don't. The opener isn't built to lift a garage door's full weight on its own, and doing it repeatedly burns out the motor or strips the drive gear. Worse, a door held up on one working spring while the other is broken can twist and bind in the tracks, especially on the wider two-car doors common in the split-levels and colonials built here between the 1960s and the 1990s. Once the tracks rack out of square, you're not looking at a spring job anymore, you're looking at track and possibly panel replacement. A door stuck partway open is also a security gap and, in Rockville's winter stretches, a straight path for cold air into an attached garage that shares a wall with living space.
The most common mistake is replacing only the spring that broke and leaving its matching spring alone. On a torsion system, both springs carry the same cycle count and the same age, even if only one has failed. If your house dates to the earlier end of that 1948-2014 build range, the spring still holding is close behind the one that just went, and it's already weakened by the same cold cycling. The second mistake is guessing at spring size. Door weight, drum size, and wind unwind direction all matter, and a spring that's slightly under-rated will wear out fast, especially with the extra strain cold steel puts on the coil. On older Rockville houses with side-mounted torsion hardware from that 1960s-70s stock, matching the original setup correctly takes measuring, not guessing.
Rockville's climate is classed cold and severe, which means real swings between summer humidity and winter cold, not just an occasional freeze. Steel spring wire loses flexibility as it gets colder, so the coil that handled July without complaint can snap under the same daily cycle count in January. Lubricant thickens too, adding drag right as the metal is least able to handle it. This is why spring failures cluster in cold snaps across the area, not evenly through the year. It's also why a spring lasting fine for years can go without warning the first hard cold morning after a mild stretch. We don't stock every spring size on the truck for every job, so if yours is an unusual door width or an older gauge, expect to wait on a part rather than get same-day service every time.
Cold makes steel less flexible, and a torsion spring that's been cycling for years finally reaches its breaking point when the metal is stiffest. Rockville's cold-severe climate band means this happens here on hard cold mornings more than during mild stretches, especially in springs original to houses built decades ago.
Both, in almost every case. Torsion springs on the same door carry the same age and cycle count. If one broke, the other is close behind it, especially in older Rockville houses from the 1960s-70s stock where both springs are original equipment nearing the same end of life.
You can, carefully, but don't run the opener. Forcing an opener to lift a door's full weight burns out the motor and can strip the gear. If the door is off-balance it can also bind in the tracks, turning a spring repair into a track and panel job.
No. Most common sizes, yes, but older or unusual door widths sometimes need a part ordered in. That's the honest limitation: same-day fixes aren't guaranteed for every door, particularly on older homes with less common hardware.
Call now or request a free quote - same-day service on most repairs, upfront written pricing.
