Dacaj Construction

266 Pelham Road, New Rochelle, NY 10805 49.7 miles

Dacaj Construction builds legal ADUs across NYC, Westchester & Nassau County. Specializing in garage, basement, attic & detached cottage conversions, they guide homeowners through zoning eligibility, DOB permits & certificate of occupancy.

Timber Design & Build

168 Mount Zion Road, Marlboro, NY 12542 2.4 miles

Licensed

Timber Design & Build constructs ADUs across Hudson Valley, NY, serving Ulster, Dutchess, Orange & Sullivan counties. Offering detached, attached, garage conversions & over-garage units. Costs range $120–$400/sqft. Rental income potential: $2,000–$4,500/month.

Westchester Modular Homes Inc.

30 Reagans Mill Road, Wingdale, NY 12594 22.1 miles

Prefab Specialist

Westchester Modular Homes Inc. builds modular accessory dwelling units (ADUs) in the Northeast. ADUs are secondary homes on single-family lots requiring permits, a kitchen, bathroom, and private entrance. ADUs can boost property value.

BIOS Homes

29 Broadview Heights Extension, Thomaston, CT 06787 47.3 miles

Prefab Specialist Eco-Friendly Turnkey Solutions

BIOS Homes is a Connecticut ADU contractor specializing in detached, attached, basement, and garage conversion ADUs. Using modular construction, they handle design, permits, and builds under CT Public Act 21-29.

Fine Home Contracting

70 Spruce Brook Road, Plymouth, CT 06782 47.9 miles

20 years in business Luxury Builds

ADUs & in-law suites add living space & value to CT homes. ADUs are self-contained units; in-law suites attach to the main house. Costs range $100K–$300K+. Learn key differences in privacy, zoning & budget.

Home Quality Remodeling

40 East Midland Avenue, Paramus, NJ 07652 45.7 miles

Licensed Eco-Friendly

Home Quality Remodeling offers full-service ADU construction in New Jersey, including detached ADUs, garage conversions, in-law suites, and granny flats. They handle design, permitting, and building to boost property value and add flexible living space.

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What you need to know

Searching for top Basement Conversion ADU Contractors in Marlboro, New York? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).

Working with a qualified Basement Conversion ADU Contractor in Marlboro 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 Basement Conversion professionals can guide you through every step.

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

Browse our listings to find the best Basement Conversion ADU Contractors in Marlboro, New York, and get started today.

Basement Conversion near Marlboro, NY