ADU Company in San Antonio Heights, CA
Kitchen remodeling in San Antonio Heights works best when the design accounts for the area’s mid-century ranch floor plans, the hot inland summers, and the county’s hillside review process. We’re a full-spectrum ADU builder, but we also finish the interior spaces that make an ADU or main house work: kitchens and bathrooms, handled in-house. If you’re weighing a kitchen upgrade alongside an ADU project, call (866) 538-0916 to talk through sequencing both jobs under one roof.
Why San Antonio Heights Homes Are Different
San Antonio Heights sits in unincorporated San Bernardino County, which means ADU and remodeling permits go through County Planning rather than a city building department. That’s a different review path than what homeowners in neighboring Upland or Rancho Cucamonga experience, and it changes how we stage the work. Most lots here are generous, and many climb the foothill slopes, so the county’s hillside and fire-clearance review often becomes the real bottleneck – not the size of the lot. A simple garage conversion can trigger grading and drainage review if the structure sits on a sloped grade, and we’ve seen that surprise homeowners who assumed the project would sail through plan check.
The housing stock leans mid-century ranch with scattered custom builds, and a lot of those older homes have detached garages, workshops, and outbuildings. Those structures are prime candidates for ADU conversion or a kitchen expansion, but they frequently need foundation, electrical, and insulation upgrades before they meet current code. Add in the dry Santa Ana winds and wildfire-risk concerns, and you start to see why material choices matter here – fire-resistant siding, ember-resistant vents, and smart placement away from brush-covered slopes aren’t optional upgrades, they’re practical decisions.
Our Main San Antonio Heights Services
Two services dominate the calls we get from San Antonio Heights homeowners, and they’re closely related: building the ADU itself, and finishing the bathroom inside it so the unit is genuinely move-in ready.
ADU Builders in San Antonio Heights
We build ADUs across San Antonio Heights using the full spectrum of methods – prefab from Abodu, Cover, Dvele, Mighty Buildings, and Plant Prefab, site-built construction, and Tuff Shed conversions for budget-conscious projects. Each path handles the county’s hillside and fire-clearance review differently, and we match the method to your lot, your goals, and your timeline. ADU Builders in San Antonio Heights covers the build options and process in detail.
Bathroom Remodeling in San Antonio Heights
A bathroom remodel here often runs into the same constraints as the kitchen: older plumbing rough-ins on a slab, dated electrical, and the need for ventilation upgrades in a climate with hot, dry summers. We handle bathroom work as part of our turnkey ADU scope or as a standalone remodel in the main house. Bathroom Remodeling in San Antonio Heights walks through what to expect from the first estimate to the final fixture.
What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Kitchen Remodeling in San Antonio Heights
Kitchen remodeling in San Antonio Heights usually means reworking a mid-century ranch kitchen that was designed for a different era: closed off from the living area, short on counter space, and built before modern appliances, task lighting, and open-plan entertaining were standard. The hot inland summers make ventilation and cooling design more important here than in coastal areas, and the county’s plan check means any structural change needs to be engineered before work begins. We handle the full kitchen scope in-house, from layout and cabinetry to counters, tile, appliances, and the finished electrical and plumbing. That’s the same approach we bring to every ADU we build – one contractor for the whole job, not three. Learn more about our approach at Kitchen Remodeling.
Full Kitchen Gut and Rebuild
Signs you need it
Your kitchen has the original mid-century layout, the cabinets are pulling away from the walls, and the electrical can’t support a modern appliance load.
What it costs in San Antonio Heights
A full gut and rebuild in San Antonio Heights typically starts around $45,000 for basic finishes and runs past $85,000 for custom cabinetry, structural changes, and higher-end appliance packages.
How we do it
We strip the kitchen to the studs, update the electrical and plumbing to current code, re-insulate for the hot summers, rebuild the layout, install cabinetry and counters, and finish with tile, fixtures, paint, and a final county inspection.
Cabinet Refacing and Countertop Replacement
Signs you need it
The cabinet boxes are structurally sound but the faces, hinges, and counters are dated, worn, or failing at the seams.
What it costs in San Antonio Heights
Cabinet refacing with new countertops in San Antonio Heights typically runs $18,000 to $35,000 depending on the counter material and whether you replace the sink and backsplash at the same time.
How we do it
We remove the old faces, doors, and hardware, install new veneers and door styles, replace the counters and sink, and add new hardware and lighting, all finished to match the existing layout without moving plumbing or walls.
What Kitchen Remodeling Costs in San Antonio Heights
| Item | Typical range in San Antonio Heights |
|---|---|
| Full kitchen gut and rebuild | $45,000 – $85,000+ |
| Cabinet refacing and countertop replacement | $18,000 – $35,000 |
| Kitchen expansion or layout change | $55,000 – $110,000+ |
Sloped lots and older mid-century construction push prices up in San Antonio Heights more than any other factor. Structural work, grading review, and electrical panel upgrades add meaningful scope. You’ll get a written line-item quote before we start, and the price doesn’t change unless you change the scope.
Can you remodel a kitchen in San Antonio Heights without a permit?
No. San Antonio Heights is unincorporated San Bernardino County, and any kitchen remodel involving structural, electrical, plumbing, or layout changes requires county permits and inspections. We pull all permits and handle the inspections for you.
How long does a kitchen remodel take in San Antonio Heights?
A typical kitchen remodel in San Antonio Heights takes six to twelve weeks from demo to final inspection, but hillside grading review or structural surprises can extend that. We give you a written schedule before we start, and we update it as the job progresses. Call (866) 538-0916 for a timeline specific to your kitchen.
Brands We Service in San Antonio Heights
We work with Mighty Buildings, Boxabl, and Plant Prefab for prefab ADUs in San Antonio Heights, and we stock the cabinetry, counters, and finishing materials locally so interior work doesn’t stall waiting on freight. Our brands page shows the full roster and what each one does best on a foothill lot.
Pricing for ADU Company in San Antonio Heights, CA
| Service | Typical range in San Antonio Heights |
|---|---|
| Prefab ADU (Mighty Buildings, Boxabl, Plant Prefab) | $180,000 – $350,000 |
| Site-built ADU | $250,000 – $500,000 |
| Tuff Shed conversion | $90,000 – $180,000 |
| Garage conversion to ADU | $120,000 – $250,000 |
| Full kitchen gut and rebuild | $45,000 – $85,000+ |
| Cabinet refacing and countertop replacement | $18,000 – $35,000 |
| Kitchen expansion or layout change | $55,000 – $110,000+ |
| Bathroom remodel (ADU or main house) | $25,000 – $60,000 |
Two factors push prices up in San Antonio Heights more than elsewhere: hillside grading and fire-clearance requirements on sloped lots, and the age of the original structure, which often needs electrical, foundation, or insulation work before finish materials even matter. We quote the full scope upfront with a written line-item estimate, and we don’t change the price once work begins unless you change the scope.
Neighborhoods We Serve in San Antonio Heights
We work throughout San Antonio Heights, from the flatter streets near Euclid Avenue up into the foothill lots and hillside roads. Response time across the 91784 ZIP is typically a day or two for an estimate, with tighter scheduling for emergency repairs or urgent ADU plan checks.
- Euclid Avenue corridor
- Foothill slope lots
- 23rd Street area
- Baseline Road frontage
- Carnelian Street area
Service Area – Cities Near San Antonio Heights
Harvest ADU Builders serves San Antonio Heights and the surrounding foothill communities, including Upland, CA, Claremont, CA, Rancho Cucamonga, CA, and Montclair, CA. Each city has its own review path, but the build methods and pricing stay the same.
Serving San Antonio Heights, CA — Our Local Coverage Area
We’re based in the San Antonio Heights area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About ADU Company in San Antonio Heights
We typically schedule estimates in San Antonio Heights within one to two business days. Because we work throughout the 91784 ZIP regularly, we can often coordinate a site visit around your schedule and the county’s plan check timeline. Call (866) 538-0916 to book a time.
Most San Antonio Heights properties are not in an HOA, but some foothill subdivisions do have restrictions on detached structures and exterior finishes. We review your specific lot and any covenants as part of the initial estimate, before you spend money on plans.
Yes. San Antonio Heights is unincorporated San Bernardino County, so permits go through County Planning, not a city building department. We prepare the plans, submit the application, respond to review comments, and manage the inspections through final sign-off. The hillside and fire-clearance review on sloped lots is part of that process, and we handle it directly.
If you’re ready to price a kitchen remodel, an ADU, or a bathroom in San Antonio Heights, call (866) 538-0916 for a free estimate. We’ll give you a written line-item quote and a straight answer on what your lot will support.
What happens when you call
- 1A real person answersNo phone trees — talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What San Antonio Heights Customers Say
"The kitchenette layout he suggested made better use of the space than the one on our original sketch."
— Marco Reyes"Sound insulation between the unit and the main house is better than I expected. You genuinely cannot hear the tenant."
— Kristen Fletcher"Unit came out great and the tenant is happy. The timeline ran long, largely because of how slow the city was on plan check, though a couple of the delays were scheduling on their end."
— Vikram Sharma