ADU Company in Los Serranos, CA
Kitchen remodeling in Los Serranos is its own animal. The homes here, mostly mid-century through 1980s builds along the Sleepy Hollow and Los Serranos Country Club corridors, carry layouts that were designed for a different era of cooking and gathering. We’re Casita ADU Builders, and we’ve served Los Serranos since 2013. When these kitchens come apart, we regularly find framing that predates modern venting requirements, electrical panels running near capacity, and rooms that were never designed for the way families actually live now. Call (877) 658-7475 to schedule a free estimate.
Why Los Serranos Homes Are Different
Los Serranos is not Chino Hills. That matters more than most people expect. This unincorporated San Bernardino County community runs on county permits, not a city counter, which changes the inspection schedule and the plan review process for any remodel or ADU. The lots themselves tell a story: former ranch and orchard land carved into generous parcels, many backing onto the Los Serranos Country Club golf course or open hillside. That means siting decisions about privacy, view corridors, and county setback review matter as much as square footage. The housing stock leans heavily toward mid-century through 1980s single-family homes, and a lot of them have older detached garages, RV pads, and outbuildings that were never insulated or permitted for living space. Add in hot Inland Empire summers with Santa Ana wind events and wildfire-interface exposure along the hills, and you get a set of conditions that reward local knowledge. We plan for cooling loads, fire-severity material requirements, and floor plans that respect how these older homes were framed.
Our Main Los Serranos Services
Two calls come in more than anything else from Los Serranos homeowners: they want to know if their property qualifies for an ADU, and they want to know how to rebuild an outdated bathroom without blowing the budget. Both live under one roof here.
ADU Builders in Los Serranos
Los Serranos is one of the few places in the Chino Valley where county jurisdiction, not city ordinance, governs ADU permitting. That means a San Bernardino County plan review, Chino Valley-area utility and fire sign-off, and county hillside or fire-severity review layered on top of state ADU law. Our work here frequently involves garage conversions and outbuilding conversions on lots that already have the footprint. We walk each property with the county’s requirements in mind before recommending a build type. Full details live on ADU Builders in Los Serranos.
Bathroom Remodeling in Los Serranos
Many Los Serranos bathrooms sit in their original footprint from the 1960s or 70s, with cast iron plumbing, undersized exhaust fans, and shower enclosures framed too tight for modern waterproofing standards. We rebuild them for humidity that inland summers produce, spec fans and waterproofing that handle sustained heat and occasional Santa Ana dust. Whether the goal is aging-in-place access or a refresh that helps the home appraise, the details are on Bathroom Remodeling in Los Serranos.
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 Los Serranos
Kitchen remodeling in Los Serranos usually starts with a layout problem, not a style problem. The original galley and U-shaped kitchens in these 1960s-to-1980s homes were built for one cook, minimal counter appliances, and a dining room down the hall. Today the family gathers at the island, the air fryer and espresso machine need dedicated circuits, and the vent hood has to move real air through a roofline that was never designed for it. And because Los Serranos runs on San Bernardino County permits rather than a city counter, we sequence inspections differently than we would five minutes away in incorporated Chino Hills. Kitchen Remodeling is one of our core services, and we approach each Los Serranos kitchen as a full system: structure, electrical, ventilation, plumbing, cabinetry, and the James Hardie or matching exterior finishes when an exterior wall gets touched.
Full Kitchen Renovation
Signs you need it
The layout fights you every single day: no landing space by the range, a refrigerator that blocks a doorway when open, or a sink island cut off from the rest of the kitchen by the main walkway.
What it costs in Los Serranos
A full kitchen renovation in Los Serranos typically lands between $28,000 and $65,000 depending on cabinet grade, finish materials, and how much the county requires us to update inside the existing walls.
How we do it
We start with a measured as-built and a code check on the existing electrical and venting, then build out the new layout with updated circuits, a properly sized hood, and a James Hardie-clad exterior patch if the remodel opens a wall.
Cabinet Replacement and Refacing
Signs you need it
Boxes are sound but the doors and drawer fronts are delaminating, hinges are sagging, or the existing layout works but the cabinet boxes were built at odd sizes that waste corner space.
What it costs in Los Serranos
Cabinet replacement and refacing in Los Serranos typically runs $9,000 to $22,000, with refacing at the lower end and full box replacement with new hardware at the higher end.
How we do it
We verify the existing boxes for square and racking, then reface or replace with new fronts, soft-close hardware, and painted or stained finishes that hold up to the dry inland air without hairline cracking.
Countertop and Island Upgrades
Signs you need it
The existing laminate or tired tile counters are chipped, seam-separated, or set at a height that makes cooking uncomfortable, or the island is too small to work as a prep and gathering surface at once.
What it costs in Los Serranos
Countertop and island upgrades in Los Serranos generally range from $7,500 to $18,000, driven by material choice, the island’s structural support, and any plumbing or electrical changes needed to move the sink or add an outlet run.
How we do it
We template after the base cabinets are confirmed level, add the structural support the new stone or engineered surface requires, and set the island with enough overhang and clearance for actual seating.
What Kitchen Remodeling Costs in Los Serranos
| Item | Typical range in Los Serranos |
|---|---|
| Full kitchen renovation | $28,000 – $65,000 |
| Cabinet replacement and refacing | $9,000 – $22,000 |
| Countertop and island upgrades | $7,500 – $18,000 |
How long does a kitchen remodel take in Los Serranos?
A full kitchen in Los Serranos typically takes 6 to 10 weeks from demolition to final county inspection. County plan check and inspection scheduling add a week or two compared with neighboring incorporated cities. Call (877) 658-7475 for a job-specific timeline.
Will my Los Serranos kitchen remodel need a county permit?
Almost always, yes. Because Los Serranos is unincorporated San Bernardino County, any work that touches electrical, plumbing, or structural framing requires county permits and inspections, and we pull them as part of the project. Call (877) 658-7475 and we can tell you what your specific scope will trigger.
Brands We Service in Los Serranos
We work across leading prefab and material brands so Los Serranos homeowners choose the right fit, not the only one on the shelf. That includes James Hardie fiber-cement exteriors, plus ADU systems from Abodu, Cover, and Dvele where the county’s fire-severity and hillside reviews shape the decision. See our brands for the full lineup.
Pricing for ADU Company in Los Serranos, CA
| Service | Typical range in Los Serranos |
|---|---|
| Full kitchen renovation | $28,000 – $65,000 |
| Cabinet replacement and refacing | $9,000 – $22,000 |
| Countertop and island upgrades | $7,500 – $18,000 |
| ADU design and build (modular) | $75,000 – $250,000+ |
| ADU design and build (site-built) | $150,000 – $400,000+ |
| Garage conversion ADU | $80,000 – $120,000 |
| Bathroom remodel (standard full) | $12,000 – $25,000 |
| Bathroom remodel (upper-end) | $25,000 – $45,000 |
In Los Serranos, the big price movers are the county’s hillside and fire-severity reviews, the condition of the existing structure when we open the walls, and how much electrical service your panel will support without an upgrade. We give you a written, line-item quote before work starts, and we’ll flag any change-order risk during the walkthrough rather than after demolition.
Neighborhoods We Serve in Los Serranos
We work throughout the Los Serranos community and the surrounding Chino Valley. These are the areas where we’re called most often:
- Sleepy Hollow
- Los Serranos Country Club corridor
- Chino Hills-adjacent estate lots
- Butterfield Ranch area
- Rolling Ridge
We can usually schedule a walkthrough in the Los Serranos area within a few business days. County-facing work adds a little lead time on the estimate so we can pull the relevant assessor and planning context before we quote.
Service Area – Cities Near Los Serranos
Casita ADU Builders is based in Victorville, CA and serves Los Serranos plus the surrounding cities. We run projects in Chino, CA, Yorba Linda, CA, Montclair, CA, and Pomona, CA. We know the county-city line differences better than most, because it directly changes how permits get submitted and inspected.
Serving Los Serranos, CA — Our Local Coverage Area
We’re based in the Los Serranos 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 Los Serranos
Most Los Serranos homeowners get a walkthrough within a few business days and a written estimate within one to two weeks, depending on how much county records research the property requires. Start dates depend on permit intake, which runs through San Bernardino County. Call (877) 658-7475 to schedule the first walkthrough.
Yes. Los Serranos is unincorporated San Bernardino County, so we handle county plan review, permit submittal, and inspection scheduling on your behalf. We do not ask homeowners to manage the county process themselves. Call (877) 658-7475 to talk through what your specific project triggers.
Some Los Serranos neighborhoods have covenants or HOA review layers, especially near the country club. We review what applies to your parcel early, and we design within those rules so the county approval and the HOA approval don’t collide later. Call (877) 658-7475 for help checking your property.
Call (877) 658-7475 to schedule a free estimate for your Los Serranos project. We’ll walk the property, check the county specifics, and give you a written number before any work starts.
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 Los Serranos 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."
— Arjun Singh"Detached unit in the back yard. Utilities trenched, separate meter, and it passed final on the first inspection."
— Robert Gallagher"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."
— Aisha Prince