MassDwell Solutions builds modular ADUs for homeowners, investors & developers. Models range from 470–892 sqft, starting at $164,500. Factory-built steel frame units include full warranties, energy-efficient features & 8–12 week instal... read more
Brittivia Homes & Construction offers expert ADU construction in Middlesex, Worcester & Essex counties, MA. With 20+ years experience, they handle permits, garage conversions & in-law suites. Costs range $150–$300/sq ft.
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G.M. Roth Design Remodeling offers full-service ADU construction in southern NH and northeastern MA. With 40+ years of experience, they handle zoning, design, permitting, and build. CAPS-certified, serving Nashua, Manchester, Chelmsford & more... read more
JFC Pros Construction is a licensed general contractor in Massachusetts offering design, commercial, and new construction services. Their team includes architects, engineers, and tradespeople ensuring full code compliance with NFPA, ADA, IBC, IRC,... read more
Avalon Building Systems builds custom modular homes and ADUs across the northeastern US. A VA Certified Builder, they offer turnkey services, Energy Star-compliant construction, and compact floor plans like in-law suites and backyard cottages.
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Backcountry Tiny Homes is a woman-owned carpentry and construction company in Hampstead, NH, specializing in custom mobile tiny home design, construction, and build classes led by experienced tiny home owners turned builders.
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Beantown Builders, Inc. is a Greater Boston ADU contractor offering full-service design, permitting, and construction. Projects include detached ADUs, garage conversions, and in-law suites, with budgets from $15,000 to $1M+.
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SRH Homes builds custom ADUs, including 500 SF 1-bed and 800 SF 2-bed units. Options include high-end finishes and mini-split HVAC. Financing via HELOC or cash-out refinance. Ideal for rental units, granny flats, or in-law suites.
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Post Woodworking builds custom Accessory Dwelling Units (ADUs), including detached ADUs and in-law suites. They offer flexible involvement, from full construction management to building only, ensuring seamless integration with your existing home.<... read more
Acorn Deck House builds luxury prefab ADUs in MA, featuring exposed beams & large windows. Options include 900 sq ft & 730 sq ft models. ADUs boost property value by 25–34% & generate rental income.
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Regulus Construction is a licensed ADU contractor serving MetroWest Massachusetts. They build detached backyard cottages, garage conversions, and in-law suites, managing design, permitting, and construction across 40+ towns.
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BlackDog Builders offers full-service ADU design/build solutions, handling design, permitting, and construction under one roof. Specializing in detached ADUs, backyard cottages, in-law suites, and granny flats, they back projects with a 3-year war... read more
Massachusetts homeowners can get permit-ready ADU plans starting at $800, delivered in days. Three tiers cover plans, cost estimates, and full custom design up to $3,100. Free ADU Starter Guide available.
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Kinstruct Tiny Homes is a Pacific Northwest contractor specializing in tiny homes and ADUs, including detached ADUs, backyard cottages, granny flats, and in-law suites built to maximize space and meet local codes.
read moreHaverhill, Massachusetts, known as the "Queen Slipper City" for its rich shoemaking history, is a vibrant community along the Merrimack River in Essex County. With its mix of historic Victorian homes, triple-deckers, and newer developments, Haverhill presents unique opportunities and challenges for ADU (Accessory Dwelling Unit) contractors. The city's growing population and proximity to Boston via the MBTA Commuter Rail make ADUs an increasingly attractive option for homeowners looking to add rental income or multigenerational living space.
Before beginning any ADU project in Haverhill, contractors and homeowners must navigate the city's zoning ordinances. Massachusetts state law, particularly Chapter 40A, provides a framework that municipalities must follow, and Haverhill has aligned its local regulations accordingly. Key considerations include:
Skilled ADU contractors in Haverhill, MA understand the importance of working within the city's historic neighborhoods while meeting modern building standards. Many homes in Haverhill were built in the late 19th and early 20th centuries, meaning contractors often encounter older electrical systems, knob-and-tube wiring, and aging plumbing that must be updated during an ADU conversion. Experienced contractors will conduct thorough site assessments and coordinate with local inspectors to ensure full compliance.
When selecting an ADU contractor in Haverhill, Massachusetts, homeowners should prioritize professionals who are licensed in Massachusetts, carry proper insurance, and have demonstrated experience with local permitting processes. Look for contractors familiar with Essex County building requirements and those who can manage the entire project from design through final inspection. Getting multiple quotes and checking references from past Haverhill projects is strongly recommended to ensure quality results.