Garage Conversion in Massachusetts
CZ Construction Management LLC
181 Bowen Street, Boston, MA
Massachusetts' new ADU legislation allows homeowners to build detached or attached accessory dwelling units. CZ Construction Management LLC helps with planning, permits, and construction of ADUs across Massachusetts, including Greater Boston.
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New England Outdoor
37 Oakland Avenue, Methuen, MA 01844
New England Outdoor, a family-owned business in Methuen, MA, builds custom sheds, garages, pavilions, and ADUs across New England. Specializing in ADU construction, garage conversions, and in-law suites, they handle design, permits, and zoning guidance.
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Mass ADU
144 Arlington Road, Woburn, MA 01801
Mass ADU is a Massachusetts-based ADU contractor offering full-service accessory dwelling unit construction. Services include free consultations, permitting, design, and build. They serve homeowners statewide with a clear 3-step process.
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Salisbury Construction Worcester
453 Chandler Street, Worcester, MA 01602
Salisbury Construction Worcester builds ADUs across Worcester County, Central Mass & MetroWest. Services include detached units, garage conversions, basement conversions & home additions using a streamlined design-build process.
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Bethoney Builders LLC
56 Depot Street, Duxbury, MA 02331
Bethoney Builders LLC is a South Shore residential contractor specializing in ADU construction, home additions, custom builds, and renovations. Services include in-law suites, garage conversions, finished basements, and structural repairs.
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Atlantic Property Development
444 Broadway Unit B #1069, Saugus, MA 01906
ADUs are now legal statewide in Massachusetts. Atlantic Property Development builds custom Accessory Dwelling Units on the North Shore, offering design, permitting, and construction services for detached, attached, and garage conversion ADUs.
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Alcantara Construction
407R Mystic Avenue, Medford, MA 02155
Alcantara Construction is an experienced ADU contractor specializing in detached ADUs, garage conversions, JADUs, in-law suites, and granny flats. They guide homeowners through planning, permitting, and building accessory dwelling units efficiently.
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Top Pro Inc.
35 Bradshaw Street, Medford, MA 02155
Top-Pro Construction, Inc. is Greater Boston's trusted ADU builder with 25 years of experience. Specializing in detached ADUs, attached units, garage conversions & basement ADUs to boost property value and rental income.
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Boston ADU Builder
807 Massachusetts Avenue, Boston, MA 02118
Boston ADUs add rental income ($1,500–$3,000/month), boost property value, and support multi-generational living. Boston ADU Builder offers detached, attached, garage, and basement conversions, handling design, permits, and construction in 8–12 months.
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Ron Morgan Construction
8 Harbor rd HB, Mattapoisett, MA 02739
Ron Morgan Construction is a Massachusetts ADU contractor offering full-service accessory dwelling units from 300–900 sq ft. Licensed under the 2024 Affordable Homes Act, they handle design, permits & construction. ADUs start at $90,000.
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Mass Tiny Homes
800 Lexington Waltham Plaza #1012, Waltham, MA 02451
Mass Tiny Homes helps you build the perfect ADU for your needs, whether it be for aging parents or rental income, with an easy, streamlined process from start to finish.
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13 Gables Inc
64 Millbury Road, Worcester, MA 01540
13 Gables Inc, a licensed MA general contractor with 38+ years experience, builds custom ADUs including detached units, garage conversions & in-law suites. Massachusetts' 2025 Affordable Homes Act now allows ADUs by right in single-family zones.
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ADU-PRO Corp.
121 Orchard Street, Millis, MA 02054
ADU-PRO Corp is a Massachusetts ADU specialist offering full-service construction, permitting, and project management. Led by licensed experts, they help homeowners build granny flats, in-law suites, and backyard cottages up to 900 sq ft.
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Platt Builders
109 Central Avenue, Ayer, MA 01432
Platt Builders is a home remodeling company offering kitchen, bathroom, and whole-home renovations. They focus on custom design, quality craftsmanship, and clear communication, managing every project from planning to completion.
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Boston Construct
1660 Soldiers Field Road, Boston, MA 02135
Boston Construct is a full-service ADU contractor in Boston, MA, building basement conversions, garage conversions, detached backyard cottages, and in-law suites. They handle design, permitting, and construction for 1-3 family homeowners across Greater Boston.
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Other cities in Massachusetts
What you need to know
Searching for top Garage Conversion ADU Contractors in Massachusetts? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Garage Conversion ADU Contractor in Massachusetts ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Garage Conversion professionals can guide you through every step.
Massachusetts homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Garage Conversion experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Garage Conversion ADU Contractors in Massachusetts, and get started today.