Northern Arizona Garage Builders

Detached Garages & Shops in Flagstaff

In Flagstaff, having a garage isn't just a luxury — it's where your truck is parked in January, where the snowblower and firewood are kept dry, and where weekend projects truly get completed. Whether you're looking for custom garage designs for a two-car garage, an oversized RV bay, or a full workshop with power and heat, well-built garage buildings, including shops and detached garages, provide invaluable utility.

Request a Quote

Why Choose Executive Builders

Whether you need custom garage designs for a two-car garage, an oversized RV bay, or a full workshop with power and heat, a well-built detached structure adds serious utility and resale value to your property.

Building garage buildings in Flagstaff requires more than just a kit and a slab. These structures must be engineered for a 60 psf ground snow load, with footings set below the 30-inch frost line, and framing rated for 110+ mph winds. A prefab building designed for Phoenix simply won't pass plan review here — and rightfully so. We specialize in designing and building shops and detached garages that can withstand mountain winters for decades.

Executive Builders manages the entire project: from site prep, engineering, and permits to concrete, framing, and finish work. If you need insulation, heating, wiring for a welder, or plumbing for a utility sink, we incorporate those features from the start rather than retrofitting later.

Executive Builders Custom Garage & Shops

What We Build Detached garages — 1-, 2-, and 3-car custom garage designs, perfectly matched to your home's roofline and siding. RV & boat garages — featuring tall doors, deep bays, and reinforced slabs for heavy rigs. Workshops & hobby shops — fully insulated and heated, equipped with 220V power, dust collection systems, and rough-in for compressed air. Garage/shop combos — combining parking space in the front with a workspace in the back, or offering a full second bay. Garages with storage lofts — boasting trusses engineered to handle real storage loads, not just snow. Garage + ADU-ready builds — designed as a shell so an apartment can seamlessly be added above later. Barns & equipment buildings — ideal for larger parcels in Doney Park, Kachina, Timberline, and the county.

Show Less

Our Process

Site walk & layout — We check setbacks, driveway approach, drainage, and utility runs, and stake out size options for your custom garage designs so you can see the footprint before designing.

Design & budget — Plans engineered for Flagstaff snow, wind, and frost depth, with a line-item budget. We'll provide you with honest

Our Process

Site walk & layout — We check setbacks, driveway approach, drainage, and utility runs, and stake out size options for your custom garage designs so you can see the footprint before designing.

Design & budget — Plans engineered for Flagstaff snow, wind, and frost depth, with a line-item budget. We'll provide you with honest numbers on stick-built versus other options for your garage buildings and shops and detached garage needs.

Permitting — Nearly every garage and shop in Flagstaff needs a building permit. We prepare the package, submit it, and handle plan review.

Construction — Excavation, footings below frost depth, slab, framing, roofing, and finish — with a dedicated project lead and weekly updates.

Final inspection & handoff — Passed inspections, doors dialed in, and a warranty walkthrough.

Show Less

Why Executive Builders Framing is our backbone. We frame houses for a living — your custom garage designs get the same straight walls, engineered trusses, and clean rooflines as a custom home. Engineered for here, our garage buildings support 60 psf snow loads, 30-inch frost footings, and high-wind fastening schedules as standard specifications, not upgrades. Built to match your house, our shops and detached garage boast rooflines, siding, and trim that look original to the property — not a metal box dropped in the yard. Wired and plumbed right the first time, our designs include subpanels, 220V circuits, EV chargers, heat, and floor drains planned in, not patched in later. Licensed and local, ROC #[license number], based in Flagstaff, building year-round.

Show Less

Frequently Asked Questions

Please reach us at josh@executiveaz.com if you cannot find an answer to your question.

How much does a detached garage or shop cost in Flagstaff?

In Flagstaff detached garages run $125-$250 per square foot. Flagstaff builds typically cost more because of snow-load engineering, deeper footings, and mountain-town labor and material costs. With a wide range of varying costs, contact us to discuss your plan.

Do I need a permit for a garage or shop?

Almost always, yes. Flagstaff exempts only small detached accessory buildings (200 sqft or less, single-story, under 10 feet, no utilities) — anything you'd park a car in or run power to needs a building permit. We handle the full permit package and inspections as part of every contract.

Can you match my current house?

Yes — that's most of what we do. We match roof pitch, siding, trim, and paint so the garage looks like it was built with the house. If your home is older, we can also match era-appropriate details.

Stick Built or Metal Building?

Metal kits are cheaper upfront, but in Flagstaff they still need engineered foundations and snow-rated specs, and they're harder to insulate, finish, and match to your home. Stick-built costs more but gives you better insulation, easier customization, and better resale. We'll price your project honestly both ways if you're weighing it.

Can I add an apartment above the garage?

Yes — Flagstaff allows ADUs above garages, and it's one of the most efficient ways to add rental income. The key is deciding early: the foundation and framing must be engineered for a second story from day one. We can build the ADU now or design the garage "ADU-ready" for later. See our [ADU page →] for details.

How big can I build?

It depends on your lot's zoning, setbacks, and lot coverage limits — county parcels in Doney Park or Timberline generally allow bigger buildings than city lots. We confirm your maximum footprint during the free site walk.

Can you build in winter?

We build year-round, but concrete and excavation are best scheduled outside deep winter. If you want a garage before next snow season, the site walk should happen by August— design and permitting take 4–8 weeks and construction 8–14 weeks.

Will a shop with power and heat need anything special?

A subpanel sized for your tools (welders and compressors usually mean 220V circuits), proper insulation, and a heat source — usually a hanging gas unit heater or mini-split. Floor drains and utility sinks are worth adding while the slab is open. We spec all of this in design.

Northern Arizona Garage Builders

Detached Garages & Shops in Flagstaff

Why Choose Executive Builders

Executive Builders Custom Garage & Shops

Frequently Asked Questions

Detached Garage Construction in Northern Arizona

This website uses cookies.