Attached ADU near San Bernardino, CA
L Square Construction
Irvine, CA 92705
40.3 miles
L Square Construction is an ADU contractor serving Los Angeles & Orange County, CA. They offer full-service design-build ADU solutions including detached units, in-law suites, garage conversions, and energy-efficient builds with solar integrat... read more
Custom ADU Builder
113 West Santa Fe Avenue, Fullerton, CA 92832
40.7 miles
Full-service ADU contractor offering design, permitting, and construction of detached ADUs, attached ADUs, JADUs, and garage conversions. Most builds complete in 3–5 months. Includes quartz countertops, tile showers, and luxury vinyl flooring. R... read more
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
La Tour Builders
23362-G Via Fabricante, Mission Viejo, CA 92691
41.6 miles
La Tour Builders offers expert ADU construction in Laguna Niguel, CA, including garage conversions, detached units & attached additions. Licensed, insured & code-compliant, they help homeowners add rental income or multigenerational living... read more
DYM Builders
2372 Morse Avenue, Los Angeles, CA 92614
45 miles
DYM Builders is an ADU contractor in Los Angeles & Orange County, CA, offering design, permitting & construction services for detached ADUs, garage conversions, attached units & tiny homes since 2016.
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ADU Garden Grove
11947 Valley View Street, Garden Grove, CA 92846
49.1 miles
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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Xavier Design Group
11595 Autumn Sage Avenue, Temecula, CA 91752
16.9 miles
An accessory dwelling unit (ADU) is a secondary home on a single-family lot with kitchen, bath, and sleeping space. Xavier Design Group helps Southern California homeowners build ADUs with trusted contractors and transparent pricing.
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JL Biber Construction Inc.
15548 Saddleback Road, Riverside, CA 92506
17.8 miles
An ADU is a secondary residential unit on the same property as a primary home. JL Biber Construction Inc., a licensed ADU builder in Riverside, California, offers full-service garage conversions, granny flats, and detached ADU construction.
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Kol & Co
23431 Blue Bird Dr, Lake Forest, CA 92630
43.1 miles
Kol & Co. is an ADU contractor serving Orange County, West LA & North San Diego. With 15+ years in design-build, they handle detached ADUs, garage conversions, JADUs & more—managing permits, design, and construction under one roof.read more
ADU Cities
1420 East Katella Avenue, Anaheim, CA 92867
41.2 miles
ADU Cities is a California design-build firm specializing in ADUs, JADUs, garage conversions, and remodels. They manage design, permitting, and construction, helping homeowners add living space, boost property value, or generate rental income.
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Horizon Remodeling Inc.
614 South Euclid Street, Fullerton, CA 92832
41.7 miles
Horizon Remodeling Inc. is a full-service residential remodeling company offering kitchen, bathroom, roofing, flooring, painting, and ADU conversions. Dedicated project managers coordinate all trades, keeping projects on schedule and within budget... read more
Doran Companies LLC
1041 N Cypress St, La Habra, CA 90631
40.9 miles
At Doran Companies LLC, we specialize in creating accessory dwelling units (ADUs) that are not just spaces, but extensions of your home’s character. Whether you’re considering garage conversions, new construction, or in-law suites, our experti... read more
Blue Dog Construction
4199 Flat Rock Road, Riverside, CA 92505
20 miles
Coastal Builders
610 E Santa Clara Ave, Santa Ana, CA 92706
41.6 miles
Coastal Builders is a Long Beach, CA ADU contractor specializing in detached, attached, garage conversion, basement, and attic ADUs. They offer design consultation, ADA-compliant builds, and custom units like granny flats and in-law suites.
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Other cities in California
What you need to know
Searching for top Attached 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 Attached 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 Attached 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 Attached ADU experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Attached ADU ADU Contractors in San Bernardino, California, and get started today.