Canton, MI · Garage Door Service
Canton homes built mostly in the 1960s and 70s lose heat through worn garage door seals. Here's what to check before winter, and when a seal job isn't enough.
Start at the bottom seal, the long rubber strip under the door. In houses built between 1944 and 1991 - which is most of Canton, with a median build year of 1963 - that seal channel is often the original steel track, and it's had six decades of freeze-thaw cycles to warp. Hold a flashlight against the door from inside at night and have someone check from the driveway. Light coming through at the bottom or along the sides means the seal has given up, not just gotten dirty.
Next check the side seals, called weatherstrip or astragal depending on who installed it. On a 1960s or 70s door these are frequently stapled or nailed on rather than set in a proper track, and staples pull loose as the wood jamb around the opening shrinks and swells with the season. Run your hand along the gap on a cold day - if you feel moving air, that's your draught source, not a mystery in the wall.
Last, look at the panel-to-panel gaps if you have a sectional door. Foam-core panels from that era compress at the seams over time, leaving a thin, cold line down the middle of the door that no amount of caulk will fix from outside.
A seal that's cracked, flattened, or missing chunks is a straightforward swap and doesn't need a truck roll - most owners can pull the old strip and press a new one in, provided the track it sits in is still straight. Call someone when the track itself is bent, when the door doesn't sit flush against the seal even after adjustment, or when the bottom seal keeps freezing to the concrete slab through a full COLD-severe winter. That last one usually means the slab has settled or the door's bottom section has bowed, and a new seal on a bowed section just tears again.
Also call if you're chasing draughts and can't find one. In the older stock across this area - the 1960s and 70s builds that make up most of the 33 named neighborhoods here - draughts sometimes come from the header seal at the top of the door, which almost nobody thinks to check and which needs the door removed to replace properly.
We don't do general home weatherization - insulation, attic sealing, that kind of work stays outside what we handle. If the draught is coming from somewhere other than the door itself, we'll tell you that on the call rather than take the job.
Garage doors installed when this housing stock went up were built to a much lower insulation standard than anything sold today. A door from 1963, or even one replaced once since then, was never designed to hold a tight seal for 60 years, and the tracks and jambs it sits in have moved with the house. Wood jambs shrink in winter and swell in summer; steel tracks rust at the fastener points where water sits after every seal replacement that wasn't done quite square.
The practical result: a door that seals fine in August can gap by a quarter inch in January, because the temperature swing itself is moving the frame. That's not a defect in any one seal, it's the age of the structure catching up with a product that was never built for a 70-year service life. Replacing the strip buys you a season or two. Replacing the track and resetting the door square buys you longer. Full door replacement is sometimes the honest answer once the bottom section itself has bowed or rotted, and no seal - however good - will hold flush against a warped panel.
This area sits in a COLD-severe climate band, which means the freeze-thaw cycle isn't an occasional event, it's a weekly one for months at a stretch. That cycling is what actually wears out a garage door seal - not the cold itself, but the repeated expansion and contraction of rubber, wood, and steel against each other. A seal that would last a decade in a milder climate can crack in three or four winters here.
Across the service area, with 225,287 households and 121,971 owner-occupied houses, a large share of the housing carries this same age and this same seal problem at the same time, which is part of why it shows up as a common call every fall. If you're near Plymouth, Wayne, or Garden City, the housing age and winter exposure run close to the same pattern, and the same seal check applies. With a median household income of $71,783 in the area, replacing a seal or a full section is usually a planned repair rather than an emergency one, and it's worth budgeting for before the first hard freeze rather than during it.
The frame and track are moving with the temperature swing, not just the seal wearing out. Wood jambs shrink in cold weather and steel tracks contract slightly, opening a gap that closes back up in summer. In a COLD-severe climate like this one, that cycle repeats every week for months, which is why a seal that looked fine in October can gap by January.
Often yes, if the track is still straight and the bottom panel isn't bowed. If the door doesn't sit flush against a new seal, the problem is the track or the panel, not the rubber, and swapping the seal again won't fix it.
Most housing in this area was built between 1944 and 1991, with a median build year of 1963, and a lot of the original doors and hardware from that era are still in place. That age is exactly why seal and track wear shows up so often here.
Call now or request a free quote - same-day service on most repairs, upfront written pricing.
