Detached ADU near Fullerton, CA
A.G.A. Construction Inc
18375 Ventura Boulevard, Tarzana, CA 91356
40.3 miles
A.G.A. Construction Inc is a Los Angeles ADU contractor specializing in accessory dwelling units & JADUs. Services include custom design, permits, plumbing, electrical & energy-efficient construction to maximize property value.
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The Sterling-Watson Collective
1441 Huntington Dr, 1900, South Pasadena, CA 91030
19.8 miles
Sterling-Watson Collective is a full-service ADU contractor in Los Angeles offering design, permitting, structural engineering & construction management for accessory dwelling units, helping homeowners add rental units, guest suites & more... read more
MDM General Contractors
1236 North Fairfax Avenue, Los Angeles, CA 90046
28.3 miles
MDM General Contractors offers full-service ADU construction in San Bernardino, including garage conversions, granny flats & detached ADUs. Licensed & insured, they handle design, permits, and build from start to finish.
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Esco Builders Inc
Downey, CA 90242
12.5 miles
USModular Inc.
579 West County Line Road, Calimesa, CA 92320
49.5 miles
USModular Inc. is a Temecula, CA ADU builder specializing in modular, prefabricated construction. Units are up to 90% factory-built, completed in ~120 days, and comply with IRC and local codes. Services include feasibility studies, design, enginee... read more
RODO Development LLC
19720 Ventura Boulevard, Woodland Hills, CA 91364
42.2 miles
RODO Development LLC is a licensed LA-based ADU contractor offering full-service design-build solutions including garage conversions, detached ADUs, attached ADUs, basement conversions & custom designs across Los Angeles and surrounding areas.... read more
Molinar Design
1132 Spence Street, Los Angeles, CA 90023
22.5 miles
Molinar Design is a licensed design-build firm in Los Angeles offering ADUs, garage conversions, custom homes, remodeling, commercial architecture, permit packages, and fire & water damage restoration across Los Angeles County.
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EcoSmart Builders
21300 Victory Boulevard, Calabasas, CA 91367
43.7 miles
EcoSmart Builders is a licensed Southern California ADU contractor specializing in accessory dwelling units, home expansions, and fire rebuilds. Serving Los Angeles County, they manage design, permitting, and construction of detached, attached, ga... read more
RIA Group Construction
26632 Towne Centre Dr # 300, Foothill Ranch, CA 92610
20.8 miles
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.
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Willbii
2158 Huntington Drive, San Marino, CA 91108
19.9 miles
Willbii is a California ADU contractor specializing in granny flats, garage conversions, and in-law suites. They guide homeowners from consultation to construction, handling permits and design. ADUs can generate up to $5,000/month in rental income... read more
Vertebrae
725 South Los Angeles Street, Los Angeles, CA 90014
21.5 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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ADU1
19326 Ventura Boulevard, Los Angeles, CA 91356
39.6 miles
ADU1 helps multifamily property owners add ADUs to boost income. Add up to 25% more units plus 2 detached ADUs. Services include a $250 feasibility report, full design-build, and free weekly Q&A sessions every Wednesday.
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R Remodeling
6745 Washington Avenue, Whittier, CA 90601
6.7 miles
R Remodeling is a trusted ADU contractor in Whittier, specializing in accessory dwelling units for added living space or rental income. Experienced in detached ADUs, they manage projects from consultation to completion with minimal property disrup... read more
Long Beach Elite ADU Solutions
245 East 3rd Street, Long Beach, CA 90802
16.5 miles
Long Beach Elite ADU Solutions specializes in ADU construction and garage conversions in Long Beach, CA. Services include detached ADUs, JADUs, basement and above-garage units. 15+ years experience, 150+ completed projects.
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Silver Moccasin Builders
2613 Pasadena Avenue, Los Angeles, CA 90031
21.2 miles
Other cities in California
What you need to know
Searching for top Detached ADU ADU Contractors in Fullerton, 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 Fullerton 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.
Fullerton 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 Fullerton, California, and get started today.