When the garage door acts up after the roofers and the siding crew leave

Why does the garage door act up right after the roofers or the siding crew leave?

The other trades work on the opening and the wall the door hangs in, never on the door itself. A sectional door has very little room to spare along its edges and at the floor. One that ran fine on Monday and scrapes or refuses to close on Friday usually got knocked or pinched while the work went on, or had a sensor painted over, and most of that is small garage door repair.

Around Sapulpa the work tends to arrive in a line after hail. Roof first, then gutters, then siding or new trim and paint if the claim reached that far. Sometimes the door itself gets replaced in the same stretch, so a brand-new door can be hung a week before someone leans a ladder on it. Checking the door is nobody’s job on those crews, and the first test is usually that evening, when someone presses the button.

What does new trim or siding around the opening do to a garage door?

The stop molding along both sides and across the top of the opening is set to the closed door with a small gap, so the weatherstrip on it touches the door face without squeezing it. New trim or siding often goes back on hard against the door. The sections then drag and scrape paint off their edges, and the side seal gets pressed flat until it no longer seals anything.

You can usually hear it before you see it. A long rubbing sound down one side, louder near the top, is the common one.

Wrapping the jambs in new trim can also bury the lag bolts that hold the track brackets. The door still runs, but nobody can see those bolts anymore, and a trim nail that finds a bracket instead of wood can nudge it out of line. The fix is resetting the stop and the seal to the door as it hangs and checking the brackets behind the new wrap. That is a short visit, with no new parts unless a seal got cut.

Can a roof tear-off or a gutter job damage the garage door?

Yes, and the usual damage comes from ladders and debris rather than the roofing itself. A ladder footed against a closed door puts a worker’s weight on one section, which can bow it in or bend the steel strut running across it. Shingle grit and roofing nails collect along the threshold where the bottom seal lands.

That threshold is the part people miss. The magnet sweep that runs over the driveway at the end of the day rolls past the inch of slab under the closed door, and whatever bounced into the bottom of the tracks stays there. A door that lands on a nail stops short of the floor and reverses, or the nail slices the bottom seal along a few inches.

Doors also get left open for days so cords and wheelbarrows can pass through. When the job ends, someone closes the door on an extension cord or a strip of tarp lying across the floor.

A dent where a ladder stood can look like hail or wind damage, and it sorts the same way. The guide to telling a cosmetic dent from a structural one covers that test.

Why won’t the opener close the door after the painters or the trim carpenters?

Almost always it is the safety sensors or the wiring behind them. A ladder or a stack of siding can bump a photo eye out of line, and overspray can leave a fine film on a lens. To the opener either one looks like something in the doorway, so it refuses to close, or starts down and goes right back up.

The sensor wires run up the jamb and along the wall to the opener, the same path a trim carpenter is nailing over. A staple through that thin wire can short it or break it, and a sensor that looks perfectly lined up still shows a blinking or dark light. The wall button has its own pair of wires, and when the old trim came off it is not unusual for them to come off with it. If the remotes work and the wall button does nothing, that is the first place to look.

The lights on each sensor tell you which of these you have, and what the two sensor lights are telling you walks through reading them. Re-aiming a pair is a few minutes for a tech with a wrench. A wire buried behind fresh trim takes longer to find, and tracing and replacing that run is garage door opener repair work.

What should you look for on the door before the crew packs up?

The best time for a look is before the last truck leaves, while you can still see where the ladders and the material stood. Look and listen, and leave the door, the trim and the sensors exactly as they are.

• Run the door once up and once down and watch both sides the whole way.
• Look at the stops along each side for fresh rub marks, or daylight where the seal used to touch.
• Check the threshold and the bottom of both tracks for grit and nails.
• Find the sensor lights on both sides and make sure each one is steady.
• Listen for a new scrape or pop at one point in the travel.
• Look at the sections where the ladders stood for a dent or a bow.

Whatever turns up, note which side it is on and where in the travel it happens.

What do these fixes usually cost here?

Most of what other trades leave on a door is small. Sensor alignment, a travel limit reset after the door landed on debris, or a re-run sensor wire fall under small opener fixes, at $90 - $160. A trim stop and side seal reset depends on how tight the new trim went on, so it gets quoted at the door.

A ladder dent that turns out to be structural is the larger number. A single section is $280 - $600 when the door’s profile is still made. The cost page lists what these small fixes cost here beside the spring and opener work. A cosmetic dent on a door that runs quietly can wait.