Junior ADU (JADU) near Fontana, CA
Aspace Studios
p.o. box 851, Glendora, CA 91741
23.4 miles
Aspace Studios is an LA-based design-build firm specializing in ADUs and residential expansions. They handle detached, attached, garage conversion, and JADU projects, guiding homeowners through design, permitting, and construction.
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Cornejos Builders
8909 Elmont Avenue, Downey, CA 90240
38.8 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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Legacy Builders LA
Los Angeles, CA
44.9 miles
Legacy Builders LA is a trusted ADU contractor in Los Angeles with 20+ years of experience. They offer ground-up ADUs, JADUs, garage conversions & additions, delivering custom, high-quality accessory dwelling units tailored to each homeowner.<... read more
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
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.... read more
Willbii
2158 Huntington Drive, San Marino, CA 91108
37.4 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
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.<... read more
Calpacific Constracting
24024 Outrigger Drive, Canyon Lake, CA 92587
30.9 miles
Calpacific Contracting builds ADUs, casitas & garage conversions across Riverside, Orange, LA & San Bernardino Counties. 80+ years experience. Full-service: permits, design, construction & inspections handled end-to-end.
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Custom ADU Builder
Los Angeles, CA 90012
44.9 miles
Custom ADU Builder specializes in detached ADUs, attached ADUs, garage conversions & JADUs. Projects complete in ~3 months. Pricing starts at $235/sqft. Turn-key builds include quartz countertops, tile showers & luxury vinyl flooring.
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US Modular Inc.
579 West County Line Road, Calimesa, CA 92320
22.9 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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Xavier Design Group
11595 Autumn Sage Avenue, Temecula, CA 91752
7.8 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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Ohayon Construction
Los Angeles, CA 90012
44.9 miles
Ohayon Construction is a licensed Los Angeles ADU contractor since 2008. They build detached ADUs, garage conversions, attached ADUs & JADUs. Serving Beverly Hills, Santa Monica & more. Free consultation available.
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King Home Remodeling
1012 West Beverly Boulevard, Montebello, CA 90640
38.3 miles
King Home Remodeling builds detached, attached, garage conversion, basement, and junior ADUs in Montebello. Services include design, permitting, construction, and inspections. Local zoning, size limits, and parking rules apply.
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Long Beach Elite ADU Solutions
245 East 3rd Street, Long Beach, CA 90802
47.1 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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Motif Architecture
30211 Avenida De Los Banderas #200, Rancho Santa Margarita, CA 92688
32.9 miles
Motif Architecture offers ADU, JADU, and garage conversion design services in Orange County, CA. Their five-phase process covers space planning, permitting, and construction. Projects include backyard cottages and garage-to-ADU conversions in Cost... read more
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What you need to know
Searching for top Junior ADU (JADU) 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 Junior ADU (JADU) 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 Junior ADU (JADU) 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 Junior ADU (JADU) experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Junior ADU (JADU) ADU Contractors in Fontana, California, and get started today.