ADU Company in San Antonio Heights, CA
Kitchen remodeling in San Antonio Heights runs $35,000 to $85,000 for a full renovation, with most projects landing between $45,000 and $65,000 depending on cabinet grade, layout changes, and appliance choices. We’re Cottage ADU Builders, and we’ve served San Antonio Heights since 2012. The homes here – many built in the 1950s through 1970s – have galley kitchens that predate open-concept living, and the foothill heat means ventilation and cooling upgrades factor into nearly every job we quote. Call (866) 808-7312 for a free estimate.
Why San Antonio Heights Homes Are Different
San Antonio Heights is a semi-rural, unincorporated foothill community in San Bernardino County where homes sit on generous lots with private wells and septic systems. That changes how we approach any interior renovation. When we remodel a kitchen here, we’re working inside a house that may have been built before modern electrical codes, with wiring that needs upgrades before new appliances go in. The water supply comes from a well – not a municipal line – so water pressure, filtration placement, and fixture choices get evaluated early in the design conversation.
The climate matters too. Summer days run hotter than the valley floor below, and afternoon winds sweep through the foothills. Exhaust ventilation for range hoods needs to move real air, not just meet a minimum spec. And because this area sits in a high fire severity zone, any wall we open gives us a chance to confirm the home’s existing construction meets ignition-resistant standards before we close it back up. That’s local knowledge, not a line item.
Our Main San Antonio Heights Services
San Antonio Heights homeowners usually call us about two things: adding square footage with an ADU or bringing an aging bathroom up to date. Here’s what each involves in this community.
ADU Builders in San Antonio Heights
Detached ADUs dominate here because lots are large enough to accommodate them. The catch is that every ADU in San Antonio Heights triggers a percolation test and water-supply verification through the county – an extra six to twelve months of permitting and site work that flatland builders rarely plan for. We’re fluent in that process and in prefab systems from Boxabl, Plant Prefab, and Tuff Shed, which can shorten the on-site build phase once permits clear. If you’re weighing a detached unit versus a garage conversion, start with ADU Builders in San Antonio Heights for specifics on siting, septic capacity, and fire-zone requirements.

Bathroom Remodeling in San Antonio Heights
Bathrooms in San Antonio Heights homes often share walls with original mid-century plumbing that’s nearing the end of its service life. A remodel here frequently includes replacing galvanized supply lines and updating drain stacks before tile or fixtures go in. Well water also means checking for sediment and mineral buildup that affects fixtures. For the full scope of what bathroom work involves in this area, see Bathroom Remodeling in San Antonio Heights.

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
A kitchen remodel in San Antonio Heights typically costs between $35,000 and $85,000, with most full renovations landing in the $45,000 to $65,000 range. Homes here were largely built in the mid-century era, so we’re usually working with original layouts, outdated wiring, and cabinets that have outlived their usefulness. The foothill climate pushes ventilation and cooling higher on the priority list than it would be in a flatland city. If you want more detail on how we approach these projects, our Kitchen Remodeling service page covers the full process from demo to final walkthrough.
Full Kitchen Renovation
Signs you need it
Your kitchen has the original 1960s or 1970s layout, the cabinet doors don’t close square anymore, and you’re working around dead corners instead of cooking in them.
What it costs in San Antonio Heights
A full kitchen renovation in San Antonio Heights runs $45,000 to $85,000 depending on cabinet grade, appliance packages, and whether load-bearing walls move.
How we do it
We demo to studs, upgrade electrical and plumbing to current code, rework the layout if needed, install new cabinets and counters, then finish with flooring, backsplash, and fixtures.
Cabinet Refacing and Countertop Replacement
Signs you need it
Your cabinet boxes are structurally sound but the faces are dated, and the counters are laminate or tile that’s chipped, stained, or delaminating.
What it costs in San Antonio Heights
Cabinet refacing with new countertops in San Antonio Heights runs $18,000 to $35,000, which includes new doors, drawer fronts, and hardware.
How we do it
We reface existing cabinet boxes with new doors and veneers, replace counters with quartz or solid surface material, and swap out sinks and faucets as part of the same scope.
Kitchen Layout Reconfiguration
Signs you need it
Your kitchen has a wall separating it from the living or dining room, or the peninsula blocks the natural work triangle and makes the space feel cramped.
What it costs in San Antonio Heights
Removing a non-load-bearing wall and reconfiguring the kitchen footprint in San Antonio Heights typically runs $40,000 to $70,000 with structural changes and finishes included.
How we do it
We confirm which walls are load-bearing, design the new layout around existing utility locations, pull permits, then reframe, reroute mechanicals if needed, and finish the space with new cabinets and surfaces.
What Kitchen Remodeling Costs in San Antonio Heights
| Item | Typical range in San Antonio Heights |
|---|---|
| Full kitchen renovation | $45,000 – $85,000 |
| Cabinet refacing and countertop replacement | $18,000 – $35,000 |
| Kitchen layout reconfiguration | $40,000 – $70,000 |
How long does a kitchen remodel take in San Antonio Heights?
A full kitchen remodel here takes 6 to 10 weeks from demo to final walkthrough. Well and septic systems don’t affect an interior remodel timeline, but county inspection scheduling can add a week or two if we’re moving plumbing or electrical. Call (866) 808-7312 to get a project-specific schedule.
Do I need permits for a kitchen remodel in San Antonio Heights?
Yes. San Bernardino County requires permits for any work that moves plumbing, electrical, or load-bearing walls. We pull permits and schedule inspections as part of every kitchen remodel we do in San Antonio Heights. We handle that entire process for you.
Brands We Service in San Antonio Heights
We work with the brands you’ve already been researching. For ADU structures, that includes Boxabl, Plant Prefab, and Tuff Shed systems. For exterior and interior finishes, we install James Hardie fiber-cement siding and trim. See our brands page for the full list and what each system offers in a foothill climate.
Pricing for ADU Company in San Antonio Heights, CA
| Service | Typical range in San Antonio Heights |
|---|---|
| Full kitchen renovation | $45,000 – $85,000 |
| Cabinet refacing and countertop replacement | $18,000 – $35,000 |
| Kitchen layout reconfiguration | $40,000 – $70,000 |
| Detached ADU (prefab) | $180,000 – $350,000 |
| Garage conversion ADU | $120,000 – $180,000 |
| Bathroom remodel (full) | $25,000 – $45,000 |
| Bathroom remodel (guest/powder) | $12,000 – $20,000 |
What pushes price up in San Antonio Heights is the site work: septic capacity verification, well water pressure testing, and fire-zone compliance all add permitting time and sometimes engineering fees, especially for ADUs on sloped lots. We give written, line-item quotes before work starts, and our pricing doesn’t change once the contract is signed.
Neighborhoods We Serve in San Antonio Heights
We work throughout the 91784 ZIP code, covering the full San Antonio Heights footprint from the foothill slopes down to the Upland border. Here are the areas we serve most often:
- Euclid Avenue corridor and the surrounding hillside streets
- The upper foothill estates near San Antonio Canyon
- Mountain Avenue and the larger lots west of it
- The lower bench neighborhoods near 24th Street
- Amethyst Avenue and the eastern slope properties
Response time for estimates in San Antonio Heights is typically within 2 to 3 business days, since we’re scheduling visits around county permitting appointments in the area.
Service Area – Cities Near San Antonio Heights
We also serve homeowners in the neighboring communities of Upland, CA, Claremont, CA, Rancho Cucamonga, CA, and Montclair, CA. Each of those cities has its own permitting quirks and housing patterns, and we’ve done enough work across the region to know which county or city office handles what. If you’re on the border, call us and we’ll confirm which jurisdiction applies to your property.
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
Yes. We work regularly in San Antonio Heights and other unincorporated areas of San Bernardino County. The county has different permit requirements than what you’d encounter in Upland or Claremont, and we know the county process well. Your project gets handled through the correct channels from day one.
For kitchen and bathroom remodels, well and septic systems don’t require additional permits unless you’re changing water usage patterns or adding fixtures that increase flow. For ADUs, they absolutely do – any new unit triggers a percolation test and water-supply verification through the county. We plan for that timeline up front.
Yes. A second unit shouldn’t mean a second contractor. We often coordinate an ADU build with interior work in the main house, which saves you from juggling two schedules and two sets of change orders. Call (866) 808-7312 to talk through whether combining scopes makes sense for your property.
Ready to talk numbers for your San Antonio Heights project? Call Cottage ADU Builders at (866) 808-7312 for a free estimate. We’ll walk the site with you, answer questions about county requirements, and give you a written quote you can actually plan around.
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
"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."
— Shane Miller"Garage conversion to a one bedroom unit. He handled the plans, the city submittal, and every round of corrections. Took six months from first meeting to final inspection and he never once made the permit process my problem."
— Amanda Walsh"The kitchenette layout he suggested made better use of the space than the one on our original sketch."
— Lucia Flores