Prime Team Builders

147 West Route 66, Glendora, CA 91740 23.2 miles

Prime Team Builders is a general contracting company serving the Inland Empire, including Pomona, Ontario, Riverside & more. They specialize in kitchen remodeling, bathroom remodeling, and residential renovations throughout Southern California... read more

CarbonShack Design

715 Cypress Avenue, Los Angeles, CA 90065 43.7 miles

Eco-Friendly

CarbonShack Design offers expert ADU design services in Los Angeles, specializing in accessory dwelling units, detached ADUs, granny flats & in-law suites. Carbon-conscious building practices & design-first approach set them apart.

RIA Group Construction

26632 Towne Centre Dr # 300, Foothill Ranch, CA 92610 31.5 miles

Licensed 20 years in business Luxury Builds

RIA Group Construction (CA Lic. #1143899) is a full-service design-build contractor in Orange County, CA. Specializing in home renovations, new builds, ADUs, kitchen & bathroom remodeling, and pool construction.

Dobson Construction Inc.

5021 Blum Road, Martinez, CA 94553 11.5 miles

16 years in business

Dobson Construction Inc. is a Bay Area ADU contractor with 16+ years of experience building home additions, detached ADUs, guest suites, and garage conversions. They handle design, permits, and construction for functional, value-adding residential... read more

Capital Construction

41558 Eastman Drive, Murrieta, CA 92562 38.7 miles

Licensed

Capital Construction Inc. is an experienced ADU contractor building detached ADUs, in-law suites, granny flats, and rental units. Licensed, bonded, and insured, they handle permitting, design, and construction while respecting budgets and timeline... read more

Revival Homes

1150 South Olive Street, Los Angeles, CA 90015 46 miles

Revival Homes is a California ADU project manager handling planning, financing, design, permitting, and construction. They build detached ADUs, garage conversions, JADUs, and more, with costs ranging from $100K to $300K.

Potato Construction

8326 East Valley Boulevard, Rosemead, CA 91770 35.9 miles

Licensed 15 years in business

Potato Construction Inc., based in Rosemead, CA, is a licensed ADU contractor with 15+ years of experience. They build detached ADUs, garage conversions, attached ADUs, and JADUs across the San Gabriel Valley and greater Los Angeles area.

Vertebrae

725 South Los Angeles Street, Los Angeles, CA 90014 45.4 miles

Licensed 13 years in business Eco-Friendly

Vertebrae is an LA-based, woman-owned architecture studio founded in 2012, specializing in ADU design and small-space living. Award-winning projects include the 2025 Architizer A+ Award and 2023 AIA LA Honor Award winners.

LA ADU Solutions Inc.

Los Angeles, CA 90012 44.9 miles

Accessory Dwelling Units (ADUs) offer California property owners passive income, elderly care solutions, and property value growth. Since 2020 legislation, ADU permits are easier to obtain. Construction costs range $350–$450/sq ft, with rental i... read more

San Gabriel Valley ADU

1841 South San Gabriel Boulevard, Rosemead, CA 91776 36.2 miles

Licensed Eco-Friendly Luxury Builds

San Gabriel Valley ADU Construction Contractors build & convert ADUs, granny flats, garage conversions & in-law suites across Pasadena, Arcadia & nearby cities. Expert permitting, design & cost management for LA County homeowners.<... read more

Team Allstar Construction

301 9th Street, Redlands, CA 92374 16.4 miles

Team All Star Construction (CSLB #1009760) is a California-licensed design-build contractor specializing in Accessory Dwelling Units (ADUs) for homeowners across Southern California. The company serves San Bernardino County, Riverside County, Oran... read more

WM Construction

10535 Foothill Boulevard, Rancho Cucamonga, CA 91730 5.4 miles

Licensed

WM Construction is a licensed ADU contractor in Los Angeles offering full-service builds, from site assessment and design to permitting and post-construction support, helping homeowners add granny flats, garage conversions, and in-law suites compl... read more

ADU Maxx

4401 Atlantic Avenue, Long Beach, CA 90807 45.7 miles

Levatto Construction

1657 Camelot Dr, Redlands, CA 92374 18.4 miles

Levatto Construction offers ADU construction in Redlands, CA, including granny flats, garage conversions, backyard cottages & attached units. Code-compliant builds tailored to your property goals.

USA Builders Pro

2900 Bristol Street, Costa Mesa, CA 92626 38 miles

20 years in business

USA Builders Pro offers 20+ years of ADU construction and home addition services. Specializing in detached & attached ADUs, room additions, permits, and zoning compliance, they help homeowners boost property value and living space.

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What you need to know

Searching for top Detached ADU ADU Contractors in Fontana, California? 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 Fontana 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.

Fontana 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 Fontana, California, and get started today.

Detached ADU near Fontana, CA