Boston, MA · Residential
Garages planned, permitted and built in Boston, quoted in writing.
Detached and attached garages, garage additions, apartments over garages, carports and conversions across Greater Boston. Free estimates and written quotes.
What we build
Garage services
A new garage, an addition or a room over it? We look at the lot, talk through size and layout, and give you a written quote you can compare.
Detached garages
Stand-alone 1, 2 and 3-car garages on their own slab, built to match the house.
Attached garages
Garages built onto the house, tied into the roof line and walls.
Garage additions
Extra bays, deeper or taller garages and new garage wings on existing homes.
Garages with an apartment above
Two-story garages with a living space or ADU over the bays, where zoning allows.
Carports
Open carports on posts, attached or free-standing, in metal or wood.
Garage conversions
Garages turned into bedrooms, offices or living space.
Garage slabs & foundations
Garage slabs, footings and site prep, also for kit and prefab garages.
Old garage tear-down & rebuild
Old or failing garages taken down, hauled away and rebuilt.
The Boston Garage Builders provides detached and attached garages, garage additions, garage apartments, carports and conversions for homes in Boston and nearby Massachusetts towns. Free on-site estimates with a written quote. Most new garages take several weeks of work once plans and permits are approved, depending on size and finish. Builds detached and attached garages, garage additions, garage apartments, carports, conversions and slabs.
How it works
- Free on-site estimateCall, text or book online. We look at the lot, access and where the garage can go.
- Plans & written quoteSize, layout, materials and price in writing.
- Permits & site prepWe check what the job needs, then prepare the ground and the slab.
- Build & walk-throughFraming, roof, doors and finish, then a walk-through with you.
Reviews
Selected 5-star Google reviews
I would like to say they did an excellent job with our garage build. They were very prompt on getting to our home early each morning ready to work.
Frequently asked questions
How much does a new garage cost in Boston?
HomeGuide's national figures put a garage at $15,000 to $80,000, and most two-car garages at $25,000 to $60,000. Those are not our prices, and HomeGuide gives no Boston figure. We price your lot in a written quote after a visit.
Do I need a permit to build a garage in Massachusetts?
Yes. The state building code exempts only small one-story sheds and similar buildings of 200 square feet or less. A garage needs a permit from your city or town's building office.
How deep do garage footings go around Boston?
The Massachusetts residential code sets the frost line at 48 inches, so footings and frost walls go that deep.
Can I put an apartment over my garage?
Often. Massachusetts allows one ADU of up to 900 square feet by right in single-family zoning districts, within local rules. Boston has its own zoning code, so we check your address.
Can you replace my old one-car garage?
Yes. We take down worn garages, pour a new foundation and build a new one, often bigger if zoning allows.
Do you build carports?
Yes. On lots too tight for a garage, a carport framed for Boston snow can give covered parking.
Do I need a permit to build a garage?
Almost always. New garages, additions and conversions need building permits and often zoning review. We check what your lot needs before work starts.
Detached or attached: which costs less?
It depends on the lot. Attached garages share a wall but must tie into the house; detached garages need their own four walls. We price both when the lot allows.
How long does a garage take to build?
Most garages take several weeks of work once permits are in hand, depending on size and how finished the inside is.
Can you build a room or apartment above a garage?
Often, where zoning allows. It needs a stronger frame and foundation, stairs and its own permits. We check the rules for your address.
Garage questions, answered
Straight answers on cost, repairs, permits, neighbors and choosing a contractor in Boston.
Ready to get started?
Free estimate and a written quote. Call us or send the form.