License VerifiedServing Ontario, West Covina, Rancho Cucamonga, San Bernardino County · Based in Ontario, CA
Pricing on request — unlock Build ADU Home Remodel's ADU pricing for your project
Build ADU Home Remodel is a CSLB-verified contractor listed in San Bernardino County with classification B | C54.
31+ years building ADUs · CSLB 692159 · B | C54 - General Building Contractor
Pricing varies by unit type, size, finishes, and site conditions. Unlock Build ADU Home Remodel's project pricing for your lot — free, no obligation.
| Unit type | Typical size | Pricing |
|---|---|---|
| Studio / JADU | ≤ 500 sq ft | Pricing locked — unlock to view |
| 1-bedroom detached ADU | 600–750 sq ft | Pricing locked — unlock to view |
| 2-bedroom detached ADU | 750–1,000 sq ft | Pricing locked — unlock to view |
| Garage conversion | 400–600 sq ft | Pricing locked — unlock to view |
| Attached ADU | 400–800 sq ft | Pricing locked — unlock to view |
Pricing is unlocked per project
Share a few details and we'll send Build ADU Home Remodel's pricing for your build.
In-house design and full permit handling.
Turnkey ground-up and conversion builds.
Guidance and lender introductions.
ADU formats this builder takes on.
What's covered after move-in.
Distribution
Customer service by far the worse , make sure everything they said they're going to do as part of the project ,is added to the contract or in a text or email Jessica the co owner likes to play the game I don't recall .We learn the hard way .Definitely this company is not a five star .
We hired Jessica and her team to help us remodel our kitchen and bathroom at our house here in Upland. Instantly, from the moment we met her, you can tell she was really personable, professional, and knowledgable. It was a pleasant surprise when we realized it’s a family owned business and the father is the G.C. and brother is the project manager who does such a great job at communication. Every single day, he would text us with an update and keep us informed on the project Our overall experience was a 10/10 and we highly recommend them others.
We absolutely are in love with our kitchen remodel!
I’m a realtor and I will not refer another contractor outside of Jessica and the Build ADU family ever since I hired them for my fix n flips-together, we work on room additions, fire destroyed properties, kitchen and bathroom remodeling projects, and high end renovations / this is a detail oriented company with transparent prices and years of consistency - it’s not just me though. I Hear nothing but great things about these guys from all the referrals we send them! Keep it up guys!
Thanks to the team for helping me out with my shower remodel & other things around the house. Will be referring you guys to everyone
Build ADU Home Remodel is a full-service ADU builder serving Ontario, CA, handling design, permitting, and turnkey construction for detached ADUs, attached ADUs, garage conversions, and junior ADUs (JADUs). Build ADU Home Remodel holds a 4.4-star rating across 5 verified homeowner reviews.
Yes. Build ADU Home Remodel holds an active CSLB license (692159), classified B | C54 - General Building Contractor, and is bonded and insured.
Build ADU Home Remodel prices every ADU per project — your cost depends on size, finishes, and site conditions. Garage conversions are the most affordable path; detached units cost more. Pricing is unlocked per project: request a quote to get Build ADU Home Remodel's exact, no-obligation estimate for your lot.
Build ADU Home Remodel builds ADUs in Ontario, West Covina, Rancho Cucamonga, San Bernardino County.
Most ADU projects run 6–12 months end to end — roughly 1–2 months for design and permitting (California caps plan check at 60 days for compliant units) and 4–8 months of construction. Build ADU Home Remodel confirms a timeline for your specific project during the feasibility consultation.
Tap any "Get a Quote" button on this page to share a few details about your property and project. We'll confirm your service area, match you directly with Build ADU Home Remodel, and set up your free feasibility consultation — no obligation.
Pre-ADU Checkup — $499 — Get finalized permits, a pre-ADU checklist, and an on-site feasibility visit. Homeowners save $1,000s by doing this before engaging a contractor.