Quick answer: Daylight under the door, a drift of snow inside, or a door that freezes to the slab means the bottom seal (and often the side and top seals) is done. We replace garage door weather seals across Minneapolis-St. Paul in one visit, usually with a fall tune-up. Call or text (763) 265-7671.
Garage door weather seals are the cheapest part of the door and the one that decides whether your garage is 20 degrees or -10 in January. Minnesota is hard on them: the rubber hardens in the cold, salt eats it, and the freeze-thaw cycle glues it to the slab and tears it loose again. When a seal fails you get cold air, drifting snow, mice, and – the call we get the most – a door frozen to the floor.
The three seals on a Minnesota garage door
- Bottom seal (astragal) – the rubber bulb on the bottom edge. It takes all the abuse: salt water, ice, and being crushed every time the door closes. When it cracks, flattens or pulls out of its retainer, water gets under the door and freezes.
- Side and top seals (perimeter weatherstripping) – the vinyl-flap strips nailed to the door jambs and header. They stop the wind, blowing snow and insects at the edges. Old ones curl, crack and no longer touch the door.
- Threshold seal – a raised rubber strip glued to the concrete under the door, for garages with an uneven or sloped slab where water runs in. Not every door needs one; David will tell you if yours does.
Why the seal matters more here than most places
The most common winter call in the Twin Cities is a door that will not open because it is frozen to the floor. Nine times out of ten the story is the same: the car drips salty slush, it runs to the door, and overnight it freezes the flattened old seal to the concrete. The opener strains, the bottom panel bends, and sometimes the seal tears right off. A fresh, pliable bottom seal on a balanced door releases from the ice instead of holding it – that is why we replace seals in the fall, not in February. Our frozen door guide explains what to do if it has already happened.
What David checks while he is there
A seal job is quick, so it is done with the door already in front of him: the bottom brackets, cables and rollers (in Minnesota they rust from the same salt water that ruined the seal – see cable replacement), the balance of the door, the lower track, and the retainer itself, which on older doors is bent or missing screws so no new seal will stay in. If the bottom panel is rotted or rusted through behind the seal, that is a panel replacement conversation, not a seal.
Signs you need new weather seals
- Light visible under or around the closed door.
- A line of snow, leaves or dust inside along the bottom edge.
- The door freezes to the floor after a snow.
- Bottom seal cracked, flattened flat, hanging out of the retainer or missing sections.
- Side strips curled away from the door, brittle or broken.
- Mice. They come through the corners where the bottom seal meets the side seal.
- Higher heating bills in an attached garage with a room above it – also see our insulation guide.
Frequently asked
What is the rubber strip on the bottom of my garage door called?
The bottom seal, or astragal. It is a rubber or vinyl strip that slides into a metal or plastic retainer on the bottom edge of the door and squashes against the slab to close the gap. Minnesota doors also have side and top seals (the vinyl strips nailed around the frame) and, on many doors, a threshold seal glued to the floor.
Why is my garage door freezing to the floor?
Melted snow off the car runs to the door, refreezes overnight, and glues the bottom seal to the concrete. A flattened, cracked or torn seal makes it worse because water gets underneath. A fresh seal, a clean threshold and a properly balanced door stop most of it – our frozen-door guide has the safe way to free a door that is already stuck.
How often should the bottom seal be replaced?
In the Twin Cities, expect 5-8 years. Salt, sun and the freeze-thaw cycle harden the rubber; once it cracks or stays flattened, it has stopped sealing. If you can see daylight under the closed door or find a line of snow inside, it is time.
What does garage door weather seal replacement cost?
It is one of the least expensive jobs we do – usually a single visit, and David quotes the exact price on site before starting. It is often combined with a fall tune-up so the door is balanced and lubricated for winter in the same trip.
Related: Fall garage door tune-up checklist · Garage door frozen to the floor · Tune-up and maintenance service · Minnesota maintenance guide.
Who does the work? David Tuito, the owner – licensed and insured in Minnesota. About David’s Urgent Garage Door.
Want the door sealed before the first snow? Call or text David at (763) 265-7671. Bottom seal, side seals and a winter tune-up in one visit, across Minneapolis, St. Paul and the Twin Cities suburbs.
A door frozen to the floor on a January morning counts as urgent when you need to get to work – our 24/7 emergency garage door repair service handles frozen and stuck doors early and late.