Garage Conversion near Montclair, CA

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.

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.

Bergstrom Construction Inc. builds custom ADUs in Apple Valley, Victorville & Hesperia. Serving San Bernardino County, they offer in-law suites, backyard cottages, home offices & garage additions tailored to High Desert homeowners.

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.

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.

MyADU4Less is a Southern California ADU builder specializing in prefabricated accessory dwelling units. Offering models from 160–1,200 sq ft, they handle design, permitting, and construction. CalHFA grants up to $40,000 may apply.

Step Up Builders Inc is a Class A licensed ADU contractor in Encino, CA, serving Los Angeles, San Fernando Valley & Inland Empire. 30+ years experience in detached ADUs, garage conversions, JADUs & remodels. Free estimates available.

Romano Builders specializes in ADU construction in Los Angeles, offering detached, attached, garage conversion, and junior ADUs. Costs range $300–$600/sq ft, with rental income potential of $1,500–$4,000+/month.

Golden ADU, serving Southern California since 2021, specializes in custom ADU construction including garage conversions and detached backyard cottages. They offer flexible financing with no upfront costs, completing most projects in 6–12 months.

JSN Construction specializes in ADU garage conversions in Los Angeles, offering cost-effective solutions for detached ADUs, granny flats, and in-law suites. They handle permitting, Title 24 compliance, and full project management.

ADU Conversion is a California-based ADU contractor specializing in detached ADUs, garage conversions, Junior ADUs, and attached units. They manage design, permitting, and construction, ensuring compliance with California ADU laws for homeowners seeking rental income or multigenerational housing.

Team All Star Construction (CSLB #1009760) is a California-licensed design-build contractor specializing in Accessory Dwelling Units (ADUs) for homeowners across Southern California. The company serves San Bernardino County, Riverside County, Orange County, Los Angeles County, San Diego County, and Ventura County.

Build Method Construction is a licensed ADU contractor in Los Angeles County with 25+ years of experience. They build detached ADUs, garage conversions, JADUs, and more—handling design, permits, and construction for single and multi-family properties.

ADU Design Homes is a full-service ADU design and build firm in Los Angeles and Orange County. They handle detached ADUs, JADUs, garage conversions, permitting, engineering, and construction under one roof.