Detached ADU near San Bernardino, CA
USA Builders Pro
2900 Bristol Street, Costa Mesa, CA 92626
46.8 miles
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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John Christopher Construction
2246 Newport Blvd Unit A, Costa Mesa, CA 92627
47.7 miles
John Christopher Construction is a Southern California general contractor specializing in ADU design and building. Serving Huntington Beach, Newport Beach, Costa Mesa & more, they offer custom and pre-engineered ADU plans for rental units, in-... read more
Cornejos Builders
8909 Elmont Avenue, Downey, CA 90240
48.7 miles
Cornejos Builders offers ADU construction, garage conversions & home additions in LA & Orange County. 24 ADUs completed in 4 years. Costs range $80K–$250K. Licensed, insured, bonded. 1-year warranty included.
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Easton Designs
960 North Tustin Street, Orange, CA 92867
40.4 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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ADUXprt IE General Builders
4534 Carter Court, Chino, CA 91710
23.7 miles
Our Expert Team offers dependable expert services on short notice because of our extensive network of employees and sub-contractors located throughout California. Our teams of respectable employees are always willing to help accommodate our custom... read more
ADU Specialist Group
621 North Azusa Avenue, Azusa, CA 91702
35.1 miles
ADU Specialist Group, an Azusa, CA-based ADU contractor, offers design, permitting, financing guidance, and turnkey construction for accessory dwelling units, garage conversions, and granny flats across LA, San Gabriel Valley, Ventura County, and ... read more
ADUscale
528 West Hampshire Avenue, Anaheim, CA 92805
42.9 miles
ADUscale is an independent ADU advisory service offering feasibility assessments, contractor verification, escrow-based payment protection, and construction oversight. Fixed-fee, conflict-free guidance for homeowners planning detached ADUs, garage... read more
Eureka Modular
2553 Sampson Avenue, Corona, CA 92879
23.6 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 construc... read more
Build ADU Home Remodel
4780 West Mission Boulevard, Montclair, CA 91762
23.6 miles
Build ADU Home Remodel is a trusted, licensed general contractor serving homeowners throughout the Inland Empire with full-service ADU construction. Whether you're looking to add rental income, house extended family, or increase your property valu... read more
Prime Team Builders
147 West Route 66, Glendora, CA 91740
32.6 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
J. P Homes
780 North Euclid Street, Anaheim, CA 92801
42.5 miles
JP Homes is a licensed ADU contractor in Southern California, serving Los Angeles, Orange County, Riverside & San Bernardino. They offer full-service ADU construction including detached units, garage conversions & more.
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Custom Home Builders Malibu
42400 Winchester Road, Temecula, CA 92590
45.4 miles
Custom Home Builders Malibu specializes in ADU construction, backyard Casitas & granny flats. They offer turnkey design-build services, handling permits & compliance with California ADU laws for legal, independent living spaces.
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US Modular Inc.
579 West County Line Road, Calimesa, CA 92320
15.8 miles
US Modular Inc. is a trusted ADU builder in Riverside County, CA, with 35+ years of experience. They offer prefab ADUs, garage conversions & casitas starting at $150,000, completed in 6–9 months.
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SouthStar USA
1611 Pomona Road, Corona, CA 92878
24.9 miles
SouthStar USA offers ADU construction in Riverside & Orange County, CA. Services include detached ADUs, attached ADUs, garage conversions & JADUs. Quality builds, permit-compliant, with transparent pricing for every project stage.
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ADU Custom Homes
1420 East Katella Avenue, Orange, CA 92867
40.4 miles
ADU Custom Homes is a licensed California ADU contractor with 35+ years of experience serving LA, Orange & Riverside counties. They specialize in detached ADUs, garage conversions & additions, managing projects from permits to Certificate ... read more
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What you need to know
Searching for top Detached ADU ADU Contractors in San Bernardino, 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 San Bernardino 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.
San Bernardino 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 San Bernardino, California, and get started today.