Detached Garage Demolition in Boise: What to Expect

A lot of garages in Boise's North End are old single-car buildings that sit off the alley, the way half the garages up there do. By now plenty of them have a visible wave in the roof or a side wall that's out of plumb.

When owners start thinking about one, the question is usually the same: is detached garage demolition a weekend with a sledgehammer, or a phone call?

For almost everybody, it's the phone call. Not because we want the work, though we do. It's that a garage isn't built like the stuff people usually tear down themselves.

A garage isn't just a bigger shed

A shed comes apart into pieces one person can carry. A garage doesn't.

You've got rafters holding sheathing, and that sheathing is usually holding two or three layers of asphalt shingles nobody ever stripped. Even a small single-car roof puts a surprising amount of heavy debris on the ground once it's down.

That's the part people tend to underestimate.

Then there's the framing. Older Treasure Valley garages were built with real full-dimension lumber and nails that have had decades to seize up. It doesn't pry apart politely.

It comes down in sections instead, and sections are heavy and they don't always fall where you'd like.

Almost every garage around here has power run to it, too. Sometimes it's a proper buried feed off the house panel. Other times it's an extension cord stapled along a fence that somebody's dad ran decades ago.

You need to know which one you've got before anything gets swung.

Permits and the part nobody wants to think about

Do you need a permit to tear down a garage? Yes. It's a structure, and structures need a demolition permit pulled before they come down.

How that goes depends on where you live. Boise, Meridian, Nampa and unincorporated Ada or Canyon County each run the process a little differently, and Eagle, Star and Kuna have their own quirks.

If your place sits in a historic district, and a good chunk of the North End does, expect an extra review step on top of that.

Older buildings bring up asbestos. Anything built before the late 1970s can have it in the siding, the roofing felt, or old mastic on the slab.

Sometimes a survey clears it quickly. Other times it changes how the whole job gets handled. Either way, it's not something you want to discover after the walls are already down.

We pull the permit and handle the utility disconnects as part of the job. Cutting and capping the power isn't a homeowner task, and Idaho Power works on their own schedule, which is a real reason not to start swinging just because you had a free Saturday.

Heads up: Before demo day, go look up in the rafters. Garages often have something stored on loose boards laid across the joists, and it's easy to forget it's up there. Old skis, boxes of photos, things you'd want to keep.

What detached garage demolition actually costs

We price by volume, meaning how much truck space the debris fills. You get a firm number at the free on-site estimate, before we touch anything, and nothing gets added later.

Two things move that number more than anything else. How much material is sitting there, and how hard it is to reach.

A garage that opens onto an alley in the North End or an older Nampa neighborhood is about as good as it gets. We back right up to it and load.

A garage tucked behind a house on the Bench, with a narrow side yard and a six-foot gate, means everything gets carried out by hand. That takes longer, and longer costs more.

The slab is its own decision. Plenty of people keep it as a patio pad or a spot to park a trailer. Others want it gone so they can put in lawn or a garden.

You can also split the difference and pull just the apron at the alley. Worth deciding before we come look, since it changes both the plan and the price.

How long detached garage demolition takes

A smaller single-car garage with easy access can come down and get hauled off fairly quickly. A two-car, a slab that's coming out, or a tight spot where everything gets carried by hand all add time.

When it goes on the calendar depends mostly on the permit. Once that's in hand, scheduling comes down to the size of the job and what else is on the books.

Season matters more than people expect. Summer here is hot and bone dry, so we keep the debris wet to keep dust out of the neighbors' open windows.

Winter is the harder one. Frozen ground turns footings and slab removal into a slow, ugly job, and if you're planning to plant anything in that dirt afterward, waiting for spring is usually the smarter call.

Not all of it goes to the landfill, either. Metal roofing, old wiring and appliances get recycled, and decent lumber gets set aside when somebody wants it.

The rest makes the run out to Ada County.

The bottom line

A detached garage is heavier, more structural and more paperwork than it looks from the alley. A crew with the right equipment usually beats a string of weekends and a rented trailer, and you won't spend any of it wondering whether you just cut a live wire.

If you've got one that's seen better days, give us a call at (208) 593-2877. We'll come look, tell you straight what's involved, and hand you a firm price. No pressure either way.