Sensible Home Solutions

20 Banks Brook Road, Old Orchard Beach, ME 04064 1.7 miles

Sensible Home Solutions builds ADUs, in-law suites & secondary living spaces across Maine, Massachusetts & New Hampshire. Services include detached units, garage conversions & basement ADUs. Free discovery call available.

Oxland Builders

240 Portsmouth Avenue, Stratham, NH 03885 40.9 miles

22 years in business Luxury Builds

Oxland Builders is a design/build remodeling company in Portsmouth, NH, serving the Seacoast region since 2003. Services include kitchen & bathroom remodeling, home additions, ADUs, in-law suites, and whole-home renovations across Rockingham County and Southern Maine.

Hobart Contracting

112 Shore Road, Cape Neddick, ME 03902 24 miles

At Hobart Contracting, we design and build high-quality Accessory Dwelling Units (ADUs) that fit your lifestyle and property. Whether you’re planning a guest house, in-law suite, rental unit, or private retreat, our team creates spaces that are functional, beautiful, and built to last.

Allan Tran's Exterior Finish Work

20 Gravel Pit Road, Nottingham, NH 03290 47.9 miles

Licensed

Allan Tran's Exterior Finish Work (AJT Properties) specializes in residential exterior services including deck construction, porch railing installation, storage structures, and CertainTeed siding. Known for reliable communication, on-budget delivery, and durable craftsmanship.

Guiding Builders

432 Elm Street, Portland, ME 04005 4 miles

Guiding Builders specializes in ADU construction, offering design, permitting, and building services. Projects include detached ADUs, garage conversions, in-law suites, granny flats, and casitas—custom-built to add value and living space.

American Building Group

276 Canco Road, Portland, ME 04103 13.8 miles

An ADU (Accessory Dwelling Unit) is an independent living space on a single-family property, complete with kitchen, bathroom & private entrance. Types include detached units, garage conversions & basement apartments. Ideal for rental income or family housing.

O’Brien Wood & Iron

142 Presumpscot Street, Portland, ME 04103 14.3 miles

17 years in business Eco-Friendly Luxury Builds

Portland, ME design-build firm O'Brien Wood & Iron has offered expert construction, renovation, historic restoration & custom millwork since 2008. With 60+ years combined experience, they serve residential & commercial clients with quality craftsmanship.

Clifford Structures

Brunswick, ME 04011 35.7 miles

Turnkey Solutions

Brunswick, Bath & Rockland homeowners can access the ADU Boost Pilot Program via MCOG and Bangor Savings Bank. Benefits include fixed-rate financing, up to $10K in grants, and expert support. Min. project cost: $50K. Long-term rentals only.

T&J Builders

919 U.S. 1 Bypass, Portsmouth, NH 03801 36.5 miles

T&J Builders specializes in custom ADUs in Dover NH, Portsmouth NH, NH Seacoast, Lakes Region & Southern Maine. Services include garage conversions, in-law suites & detached cottages for rental income, multigenerational living & added property value.

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What you need to know

Searching for top Attached ADU ADU Contractors in Old Orchard Beach, Maine? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).

Working with a qualified Attached ADU ADU Contractor in Old Orchard Beach 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 Attached ADU professionals can guide you through every step.

Old Orchard Beach homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Attached ADU experts featured here bring local expertise and proven experience to help make your project a success.

Browse our listings to find the best Attached ADU ADU Contractors in Old Orchard Beach, Maine, and get started today.

Attached ADU near Old Orchard Beach, ME