House Improvement LLC

6 Garfield Avenue, Shrewsbury, MA 01545 42.3 miles

House Improvement LLC builds fully insulated ADUs with electricity and climate control, ideal for home offices or studios. They also construct storage sheds, carports, gazebos, and pergolas for diverse residential outdoor needs.

Rockhouse Construction

22 Morgan Mill Road, Johnston, RI 02919 10.9 miles

Luxury Builds

Rockhouse Construction builds ADUs across Rhode Island, including Providence, Warwick, and Cranston. Options include detached, attached, garage, and basement conversions. Costs range from $60,000 to $480,000+, varying by size and finish level.

Post and Beam Barns

326 Gilead Street, Hebron, CT 06248 49.2 miles

Licensed 50 years in business Prefab Specialist

Post and Beam Barns (Country Carpenters, Hebron CT) offers handcrafted post and beam kits ideal for ADUs, backyard cottages & in-law suites. With 50+ years experience, models include The Sterling, Hemingway & Barrett. Timeline: 4–12 months.

Beantown Builders, Inc.

181 North Montello Street, Brockton, MA 02302 34 miles

Licensed 10 years in business

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+.

Auburndale Builders

151R Adams Street, Newton, MA 02458 46.5 miles

Auburndale Builders completed an 800 sq ft ADU in Newton, MA—a single-level, universally accessible in-law suite with full kitchen, bathroom, bedroom & living area, built in compliance with local zoning regulations.

South Coast & Associates Inc

45 Slocum Road, Dartmouth, MA 02747 24.7 miles

Eco-Friendly Luxury Builds

South Coast & Associates builds custom ADUs in Southeastern Massachusetts. From detached backyard cottages to garage conversions and in-law suites, they handle design, permitting, and construction for single-family homeowners.

Heritage Modular Homes

16 Harrington Avenue, Shrewsbury, MA 01545 42.5 miles

40 years in business Prefab Specialist

Heritage Modular Homes builds ADUs across MA, RI, CT & NH. With 40+ years experience, they offer custom ADU design, modular installation & in-law suites, backed by a 10-year warranty & free consultations.

Other cities in Rhode Island

What you need to know

Searching for top Detached ADU ADU Contractors in Warwick, Rhode Island? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).

Working with a qualified Detached ADU ADU Contractor in Warwick 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 Detached ADU professionals can guide you through every step.

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

Browse our listings to find the best Detached ADU ADU Contractors in Warwick, Rhode Island, and get started today.

Detached ADU near Warwick, RI