ADU Company in San Antonio Heights, CA
Kitchen remodeling in San Antonio Heights means working with the mid-century ranch homes and custom foothill properties that define this unincorporated San Bernardino County community. Most kitchens we see were built between 1950 and 1980, and homeowners are typically weighing whether to update in place or reconfigure the footprint entirely. Sunstone ADU Builders has served San Antonio Heights since 2011, handling kitchen remodels alongside ADU construction, bathroom work, and prefab installations. If you’re planning a kitchen project in 91784, call (855) 949-1913 to talk through your options.
Why San Antonio Heights Homes Are Different
San Antonio Heights sits above the valley floor at the base of the San Gabriel foothills, and the housing stock reflects a different era of building than the tract developments below in Upland or Rancho Cucamonga. Most properties are mid-century and older custom ranch homes on half-acre to multi-acre lots, many with detached garages, barns, and outbuildings that predate modern building codes. That means kitchen remodels here frequently involve working around older framing, non-standard dimensions, and layouts that were designed before open-concept living became the norm.
The elevation also changes how we approach interior work. Summer sun exposure is stronger than on the valley floor, so we plan kitchen window placement, ventilation, and cooling around real heat gain. Winter overnight cold at this elevation means insulation choices matter more than they would in Claremont or Montclair. And because every permit runs through San Bernardino County rather than a city building department, kitchen remodels that involve structural changes, wall removal, or utility relocation face a county-level review layer that neighboring incorporated cities don’t have. We know that process well and factor it into every timeline.
Our Main San Antonio Heights Services
San Antonio Heights homeowners call us most often about two things: building an ADU on their large foothill parcel, and remodeling a bathroom inside the main house or a new unit. Here’s what each involves locally.
ADU Builders in San Antonio Heights
Detached ADUs are the dominant project type in San Antonio Heights, and for good reason. The half-acre-plus lots common here give homeowners room for a freestanding guest house or granny flat that simply wouldn’t fit on a tract-home parcel in Upland. Every ADU permit here runs through San Bernardino County, and the foothill location places most properties in a high-fire-severity zone, which can trigger ignition-resistant construction and defensible-space requirements. We navigate both layers routinely. ADU Builders in San Antonio Heights covers the full process, from prefab brand selection to county permits to move-in finish.
Bathroom Remodeling in San Antonio Heights
Bathroom remodels in San Antonio Heights typically involve updating bathrooms in mid-century ranch homes or finishing bathrooms inside newly built ADUs. The older housing stock often means galvanized plumbing that needs replacement, while ADU bathroom work is scoped for rental-ready or family-use finishes. We handle the plumbing, tile, fixtures, and ventilation in-house, so you’re not coordinating a second contractor after the structure is up. Bathroom Remodeling in San Antonio Heights walks through costs, timelines, and what’s involved when we work on your bathroom.
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 bringing a mid-century or 1970s-era kitchen up to modern function without losing the character of the home. The ranch properties here often have closed-off kitchens with load-bearing walls, original cabinetry, and layouts that don’t work for how families cook and entertain now. Foothill heat and winter cold also shape our recommendations on ventilation, window placement, and insulation. If you’re planning a kitchen update, you can see how we work at Kitchen Remodeling, but the full local picture is below.
Full Kitchen Renovation
Signs you need it
Your kitchen has original 1950s – 1970s cabinets, a closed-off layout that doesn’t flow into the dining area, or appliances that no longer fit the space.
What it costs in San Antonio Heights
A full kitchen renovation in San Antonio Heights typically runs $45,000 to $85,000 depending on layout changes, cabinetry grade, and whether walls come down.
How we do it
We demo the existing kitchen, relocate plumbing and electrical as needed, rebuild walls and openings, then install new cabinetry, countertops, appliances, flooring, and lighting under one contract.
Kitchen Cabinet Replacement
Signs you need it
Your cabinet boxes are sound but the doors, drawer fronts, and hardware are worn, dated, or failing.
What it costs in San Antonio Heights
Cabinet replacement in San Antonio Heights generally falls between $12,000 and $28,000 depending on cabinet count, door style, and hardware selection.
How we do it
We measure the existing footprint, order new doors and drawer fronts or full new boxes, then install, align, and finish with hardware that matches the home’s era.
What Kitchen Remodeling Costs in San Antonio Heights
| Item | Typical range in San Antonio Heights |
|---|---|
| Full kitchen renovation | $45,000 – $85,000 |
| Cabinet replacement | $12,000 – $28,000 |
| Countertop replacement | $6,000 – $18,000 |
County permitting, older framing surprises, and the need to upgrade electrical panels on mid-century homes are the three biggest cost movers we see in San Antonio Heights. We give you a written line-item quote before work starts, and that number doesn’t change unless you add scope.
How long does a kitchen remodel take in San Antonio Heights?
Most kitchen remodels here take 8 to 12 weeks from demo to final walkthrough. County permit review on structural changes can add two to four weeks at the front end.
Will my kitchen remodel trigger a county permit in San Antonio Heights?
Yes, if you’re moving plumbing, electrical, or walls. Cosmetic updates like cabinet door replacement without layout changes usually don’t require one. We handle the permit process either way. Call (855) 949-1913 to get a straight answer on your specific scope.
Brands We Service in San Antonio Heights
We work with Plant Prefab and Abodu for prefab ADU structures, Tuff Shed-style buildings for simpler backyard units, and we specify James Hardie fiber cement siding for exteriors that need to stand up to foothill sun and Santa Ana wind. Parts and materials are ordered to the San Antonio Heights job site, and timelines are set before we start. See our brands page for the full range.
Pricing for ADU Company in San Antonio Heights, CA
| Service | Typical range in San Antonio Heights |
|---|---|
| Detached ADU (prefab) | $180,000 – $350,000 |
| Detached ADU (traditional stick-built) | $220,000 – $450,000 |
| Garage conversion ADU | $120,000 – $200,000 |
| Tuff Shed-style ADU | $90,000 – $150,000 |
| Full kitchen renovation | $45,000 – $85,000 |
| Cabinet replacement | $12,000 – $28,000 |
| Countertop replacement | $6,000 – $18,000 |
| Full bathroom remodel | $25,000 – $55,000 |
| Shower or tub replacement | $12,000 – $28,000 |
Prices in San Antonio Heights run higher than the valley floor because county-level permit review adds time, and the fire-zone requirements on detached structures often mean upgraded siding, tempered glass, and defensible-space work that a Upland ADU wouldn’t trigger. We quote fixed pricing with no change orders, so the number we give you is the number you pay.
Neighborhoods We Serve in San Antonio Heights
We work throughout the 91784 ZIP code, from the parcels along Euclid Avenue up to the higher foothill streets. Response time for estimates in San Antonio Heights is typically within a few business days, and we schedule site walks around your availability.
- Euclid Avenue corridor
- Amethyst Street area
- 23rd Street foothill parcels
- Benson Avenue properties
- Carnation Street area
Service Area – Cities Near San Antonio Heights
Sunstone ADU Builders also works in the neighboring communities below the foothills. We serve Upland, CA for tract-home ADUs and kitchen work, Claremont, CA for older village-core properties, Rancho Cucamonga, CA for larger newer builds, and Montclair, CA for smaller-lot ADUs and bathroom remodels. If you’re near the San Antonio Heights boundary, call us and we’ll confirm coverage.
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. Every San Antonio Heights project we take on includes full permit handling through San Bernardino County. Because the community is unincorporated, there’s no city building department involved, and we manage the county submittal, review, and inspection process from start to finish.
Most San Antonio Heights projects can start within 4 to 8 weeks after we scope the job and submit permits. County review times vary by project type, and fire-zone requirements on detached ADUs can add a few weeks. We give you a written timeline before you sign anything.
Yes, and it’s common here. Many San Antonio Heights properties have detached garages, barns, or old outbuildings that can sometimes be repurposed or replaced for ADU use. We’ll assess the structure during the site walk and tell you honestly whether conversion or new construction makes more sense. Call (855) 949-1913 to schedule a free estimate.
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
"Knew the local setback and parking rules cold, which saved us from designing something that would never have been approved."
— Doug Padgett"He was honest that our lot had a slope problem that would add real cost, before we signed anything."
— Paul Pruitt"The kitchenette layout he suggested made better use of the space than the one on our original sketch."
— Beatriz Garcia