Detached ADU near Fontana, CA
Custom ADU Builder
113 West Santa Fe Avenue, Fullerton, CA 92832
30.9 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
Builderwell
9641 Irvine Center Drive, Irvine, CA 92618
34.4 miles
Builderwell is an ADU contractor in Orange County, CA, offering full-service design-build solutions for custom accessory dwelling units, including guest houses, in-law suites, and rental units across Irvine, Newport Beach, and Laguna Hills.
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Pros ADU Builders
27201 Puerta Real, Lake Forest, CA 92691
38.5 miles
Pros ADU Builders in El Cerrito specializes in ADU construction, including detached units, garage conversions, in-law suites, and granny flats. They handle permits, planning, and turnkey builds tailored to each property.
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Doran Companies LLC
1041 N Cypress St, La Habra, CA 90631
30.9 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
SDS Homes
42400 Winchester Road, Temecula, CA 92590
45.6 miles
SDS Homes Construction is a Temecula, CA design-build contractor specializing in ADUs, granny flats, and Casitas. They offer turnkey services from design to permitting and construction, serving Temecula and Murrieta homeowners.
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Aligcus
1841 South San Gabriel Boulevard, San Gabriel, CA 91776
36.1 miles
Aligcus is an experienced ADU contractor specializing in detached ADUs, garage conversions, JADUs, granny flats, in-law suites, and backyard cottages. They guide homeowners through permitting and construction for all accessory dwelling unit projec... read more
J. P Homes
780 North Euclid Street, Anaheim, CA 92801
32.8 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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Fullerton ADU Builder
125 North Euclid Street, Fullerton, CA 92832
31.7 miles
Fullerton ADU Builder offers expert ADU construction services including detached ADUs, garage conversions, JADUs, in-law suites & home additions. 10+ years experience, licensed & insured, transparent pricing, free consultations & full ... read more
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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Angelus Construction
330 Arden Avenue, Glendale, CA 91203
45.7 miles
Angelus Construction is a Los Angeles ADU contractor with 30+ years of experience. They offer full-service ADU design, permitting, and construction, plus residential remodeling across Los Angeles and Ventura Counties.
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ADU Garden Grove
11947 Valley View Street, Garden Grove, CA 92846
39.5 miles
ORR Construction
1977 Obispo Avenue, Signal Hill, CA 90755
44.9 miles
ADUs are secondary units built on existing lots. ORR Construction builds detached ADUs, garage conversions, JADUs & in-law suites in California. Costs range $50–$300/sq ft. California laws like SB 897 simplify the permitting process.
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Bartona Builders
331 Delaware Road, Burbank, CA 91504
49.4 miles
Bartona Builders specializes in ADU construction in Los Angeles, offering detached ADUs, garage conversions, and in-law suites. They manage the full build process, ensuring code-compliant construction that adds value to residential properties.
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ADUscale
528 West Hampshire Avenue, Anaheim, CA 92805
33.4 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
Los Angeles ADU Contractors
3744 Flower Street, Los Angeles, CA 90007
47.7 miles
Trusted ADU builder in Los Angeles County specializing in granny flats, in-law suites & garage conversions. Boost property value, earn rental income & add living space with expert, code-compliant ADU construction.
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Other cities in California
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.