Detached ADU near Fontana, CA
The ADU Builder Inc
3639 Atlantic Avenue, Long Beach, CA 90807
46.2 miles
Los Angeles ADU contractor The ADU Builder offers 10+ years of experience in ADU construction, garage conversions, JADUs, custom homes & remodels. They guide clients through design, permits, financing & building with quality craftsmanship.
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Rockwood Homes
10017 Walnut Street, Bellflower, CA 90706
40.7 miles
Rockwood Homes Inc., based in Torrance, CA, specializes in ADU construction, garage conversions, and home remodeling across Los Angeles County, serving cities like Long Beach, Downey, and Whittier.
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Eureka Modular
2553 Sampson Avenue, Corona, CA 92879
16 miles
Eureka Modular builds steel frame modular ADUs and single family homes. Steel framing offers durability, design flexibility, and sustainability. Ideal for detached ADUs, backyard cottages, granny flats, and casitas with efficient, precise construction.
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High Power Construction
3201 N Alameda St Suite E, Compton, CA 90222
45.9 miles
High Power Construction, based in Compton, CA, offers ADU contractor services including detached units, garage conversions, granny flats, and in-law suites. Serving the greater Los Angeles area with quality craftsmanship.
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UNI Construction
1142 South Diamond Bar Boulevard, Diamond Bar, CA 91765
20.6 miles
UNI Construction builds detached and attached ADUs, handling site planning, structural engineering, and permit-ready drawings. Options include backyard cottages, granny flats, and in-law suites, all code-compliant and tailored to your property.
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Peck General Construction
18734 Lilac Street, Hesperia, CA 92345
25.5 miles
Peck General Construction builds ADUs in Orange County, Los Angeles & Inland Empire. Services include garage conversions, detached backyard cottages & granny flats. Full-service from permits to final inspection under a Design-Build model.
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Socal Upgrades ADU
1288 North Verdugo Road, Glendale, CA 91206
44.2 miles
SoCal Upgrades is a full-service ADU contractor in Los Angeles & Glendale, specializing in detached ADUs, garage conversions, JADUs & granny flats. They handle design, permits, construction & financing for a seamless, turnkey experience.
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Temecula ADU Builders
45033 Putting Green Court, Temecula, CA 92592
48.6 miles
Temecula ADU Builders is a local ADU contractor helping homeowners add accessory dwelling units, including detached ADUs, garage conversions, and granny flats, for rental income, family housing, or tax benefits in Temecula, CA.
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EZ ADU & Garage Conversion
300 South Harbor Boulevard, Anaheim, CA 92805
32 miles
EZ ADU & Garage Conversion is a trusted ADU builder and garage conversion contractor in Orange County, CA. They offer custom ADU construction, garage conversions, design, and permitting services for homeowners seeking quality living space solutions.
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Vertebrae
725 South Los Angeles Street, Los Angeles, CA 90014
45.4 miles
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.
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LPI Construction
149 Poinsettia Avenue, Monrovia, CA 91016
30.9 miles
LPI Construction offers custom homes, ADU construction, and solar electric systems. Services cover hillside builds, detached/attached ADUs, garage conversions, and sustainable building practices, managing full project lifecycles from permits to completion.
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ADU Builders
6464 Sunset Boulevard, Hollywood, CA 90028
49.9 miles
ADU Builders is a licensed Los Angeles ADU contractor with 15 years of experience. They build detached ADUs, garage conversions, attached ADUs, and JADUs, handling permits, design, and inspections for stress-free ADU construction.
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Next Level ADU Builders
8520 Florence Avenue, Downey, CA 90240
39.7 miles
Next Level ADU Builders, serving Los Angeles, Riverside & Pico Rivera since 1997, specializes in ADU construction—detached units, granny flats & casitas—plus HVAC, remodeling & roofing, with financing options available.
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Otto ADU
2926 Denby Avenue, Los Angeles, CA 90039
47.7 miles
Otto ADU is a licensed Los Angeles ADU builder specializing in garage conversions, detached ADUs, JADUs & granny flats. Serving LA County with 100+ completed units, adding avg. $185K in home value.
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Easton Designs
960 North Tustin Street, Orange, CA 92867
31.2 miles
Easton Designs and Consulting (EDC) is an Orange County, CA home design, architecture, and remodeling firm. Services include ADU construction, kitchen remodels, room additions, pools, and outdoor living. Free consultations available.
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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.