The Overhead Door on the Alley Behind a Downtown Marquette Building

Walk around to the back of most buildings downtown and the door that keeps the business running is not the one with the sign over it. It is the overhead door on the alley. Stock comes in through it, empties go back out, and on plenty of mornings it is the first door anyone opens.

That door has a different life from one on a parking lot or at a dock. It shares a narrow alley with everyone else’s trucks and snow, and it hangs in an opening that was in the wall long before the door was.

Why is the alley door on a downtown Marquette building its own kind of commercial repair?

It is the building’s receiving door, and it opens straight onto an alley that plows, delivery trucks and the neighbors all use, in an opening older than any door hung in it. Even a modest door in that spot is commercial garage door repair in every way that counts.

Size has little to do with it. Some alley doors are no wider than a double door on a house, and a few are smaller. What makes the work commercial is the schedule riding on the door, whether that is a kitchen waiting on its order before the lunch rush or stock that has to reach the shelves out front. The building’s other doors, the storefront and any shop bay or dock it has, are covered on the commercial page.

Where does the snow in a downtown alley end up?

Against the back door, more often than not. A downtown alley is walled in on both sides and cleared by whatever equipment fits down it, so the snow has few places to go, and the bottom of an overhead door set right at the alley’s edge is where a lot of it stops.

It arrives from more than one direction:

• the plow’s windrow, dropped across the mouth of the opening on each pass
• snow and ice sliding off the roofs on both sides of the alley and landing at the threshold
• whatever the last person clearing the alley pushed against the walls, door included
• anything else that falls there, since most alley doors have no apron in front and the bottom section takes it directly

Two kinds of damage follow. Somebody opens the door against a packed bank, and the opener or the person on the handle ends up lifting weight the door was never balanced to carry. Or the pile freezes hard, a plow pass or a loaded cart shoves it into the door, and the bottom section bends in from the outside. If the seal is iced to the threshold as well, a door frozen to the floor is a separate problem, covered on its own.

Why does an old downtown opening need a door built to it?

The opening was cut long before the current door went in, and sometimes resized since, so it is rarely square and rarely a stock size. A stock door hung in it leaves gaps along the sides and across the top, and the wind that funnels down an alley finds every one of them. The door gets measured at the opening and sealed to the masonry.

Repairs follow the same rule. An older alley door may be a model nobody makes anymore, so a replacement section or slat is matched by measuring the piece that came off, not ordered off a part number.

What does a stuck alley door cost a downtown business in a Marquette winter?

That depends on which way it stuck. Stuck shut, deliveries come in the front, across the sidewalk and through the sales floor or the dining room, and anything too big for that route waits on the truck. Stuck open, the back room loses its heat to the alley and the building stands open to anyone walking through.

A restaurant kitchen feels the shut version first. The morning order goes through the front on a hand truck before the doors open, and a second delivery in the afternoon lands in the middle of service. A shop with a stockroom off the alley feels it more slowly, as boxes pile up inside the front door and the shelves stay thin.

An office with a storage room on the alley side can live with a door stuck shut for a while. A door stuck open is a different matter on a January night. The cold works into the back of the building, toward whatever plumbing runs along that wall, and whatever is stored in the room sits in it until somebody can get the door down.

Downtime is the cost the commercial page is built around. An alley door carries it on a smaller footprint, with no second bay to move the work to.

How does a repair get done in an alley everyone else needs?

Around the alley’s own schedule. The service truck parks in the alley, usually right across from the door, so the visit gets set for after the alley has been cleared and between the building’s deliveries and the neighbors’. A spring, a cable or a damaged section on a door this size is a visit of hours, not days. If a neighbor has a truck due at the same hour, that is worth knowing when the visit gets set.

The door is worth describing on the phone before anybody drives over. Its width and height, whether it is sectional panels or a rolling steel curtain, whether an opener runs it or it goes up by hand, and what it did when it quit. On an older door that description decides whether the parts it needs are on the truck for the first trip or a section has to be measured and ordered.