ADU Company in Los Serranos, CA
Kitchen remodeling in Los Serranos usually runs $28,000 to $65,000 for a full gut renovation, with smaller updates like cabinet refacing and countertop replacement starting around $8,500. The homes here, mostly 1960s through 1980s ranch and tract builds on oversized lots, bring particular challenges: dated electrical panels that can’t support modern appliance loads, original cast-iron drain lines, and layouts cut off from the backyard views that make 91709 properties valuable. Bungalow ADU Builders has served Los Serranos since 2014, and we handle the permit path through unincorporated San Bernardino County so the project doesn’t stall at the counter. Call (866) 730-4828 for a free estimate.
Why Los Serranos Homes Are Different
Los Serranos sits right at the transition between the Chino Hills and the Chino Valley floor, which means kitchen work here regularly runs into sloping lots, drainage patterns, and hillside-edge setbacks that flat-lot cities like Chino or Pomona never see. Most of 91709 falls in unincorporated San Bernardino County, not the city of Chino, so permits route through County Land Use Services. That’s a different process, different inspectors, and different timeline than homeowners expect if they’ve remodeled elsewhere in the Inland Empire.
The housing stock compounds matters. We’re inside a lot of mid-century ranch homes where kitchens were built small and compartmentalized, separated from living space by load-bearing walls that require beam work to open. Many of these properties have detached garages, workshops, and older outbuildings from the area’s equestrian past, and a surprising number carry non-permitted additions from the 1970s and 80s. A kitchen remodel that touches an exterior wall or changes the footprint often triggers a review of that unpermitted history before the County signs off. We map that out during estimating, not after demo starts.
Then there’s the heat. Summer highs routinely exceed 95°F to 100°F, and the Santa Ana wind corridor pushes that heat into west-facing walls and unshaded windows. Kitchen remodels here need serious attention to insulation, window placement, and passive shading, because a beautiful new kitchen with a poor thermal envelope becomes an oven by July. We spec James Hardie exterior products and insulated window packages with the specific Los Serranos microclimate in mind, not a generic Southern California default.
Our Main Los Serranos Services
Most Los Serranos homeowners call us about two things: building an ADU on a lot that’s zoned and graded for it, and remodeling a kitchen or bathroom inside the existing home. Here’s how each one works in this area.
ADU Builders in Los Serranos
ADU builds in Los Serranos lean heavily toward garage conversions and detached units, because so many 91709 properties already have flat pads, detached garages, or old workshop buildings with usable footprints. The county permit path, hillside drainage reviews, and the occasional septic or grading history near the former country club area all shape what’s buildable. We work brand-agnostic across Abodu, Cover, Dvele, and other prefab systems, then finish the interior with the same team. See the full breakdown on our ADU Builders in Los Serranos page.
Bathroom Remodeling in Los Serranos
Bathroom remodels here often involve 1970s-era plumbing rough-ins, original cast-iron waste lines, and slab floors that make moving a toilet drain expensive. We scope those realities early so the budget reflects actual conditions. Our in-house crew handles the full scope: demo, waterproofing, tile, fixtures, and finish carpentry, without handing you off to separate trade contractors. Learn what’s involved on our Bathroom Remodeling in Los Serranos page.
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
A kitchen remodel in Los Serranos is a different animal than a tract-home refresh in Chino or Yorba Linda. The homes here were built when kitchens were service rooms, not gathering spaces, and they’re often landlocked behind load-bearing walls, undersized electrical panels, and original cast-iron drains that have seen 40 to 60 years of hard water. Combine that with unincorporated San Bernardino County permitting and the hillside drainage patterns along the Chino Hills edge, and you need a contractor who plans for what’s behind the drywall. Bungalow ADU Builders handles the full Kitchen Remodeling scope: structural opening work, panel upgrades, plumbing rough-in, cabinetry, counters, and finish carpentry, with permits pulled through County Land Use Services. We also finish the interior of ADUs, so if the kitchen you’re remodeling is inside a new or existing accessory unit, the same crew carries the job from framing to fixtures.
Gut Renovation
Signs you need it
Your kitchen has original 1970s or 1980s cabinets, a layout that blocks traffic, appliances that trip breakers, or water damage under the sink from a cast-iron drain that’s finally given out.
What it costs in Los Serranos
Full gut kitchen renovations in Los Serranos typically run $28,000 to $65,000 depending on square footage, structural work, and finish level.
How we do it
We demo to studs, correct framing and any unpermitted patchwork the County flags, rough in new plumbing and electrical to current code, install drywall, cabinetry, counters, tile, and appliances, then pull the final inspection with you.
Cabinet Refacing and Countertop Replacement
Signs you need it
Your cabinet boxes are solid but the doors and drawer fronts are worn, dated, or warped from years of Inland Valley heat cycling, and your laminate counters are chipped or stained.
What it costs in Los Serranos
Cabinet refacing in Los Serranos usually falls between $8,500 and $18,000, while countertop replacement alone runs $4,500 to $12,000 depending on material and linear footage.
How we do it
We replace doors, drawer fronts, and hardware, apply new veneer to visible box faces, swap counters, and reconnect sinks and appliances so your kitchen works same-day with no demo dust in the rest of the house.
What Kitchen Remodeling Costs in Los Serranos
| Item | Typical range in Los Serranos |
|---|---|
| Full gut renovation | $28,000 – $65,000 |
| Cabinet refacing | $8,500 – $18,000 |
| Countertop replacement | $4,500 – $12,000 |
Costs push higher in Los Serranos when we’re opening load-bearing walls, upgrading a 100-amp panel to 200 amps for modern appliances, or correcting unpermitted additions that a County inspector requires to be brought to code before the kitchen passes. The good news: our quotes are line-item and fixed, so the number we give you before demo is the number you pay at the end, unless you change scope. Call (866) 730-4828 for a written estimate.
Can you remodel my kitchen if my home has unpermitted additions?
Yes, but the County will likely require the unpermitted work to be corrected or permitted retroactively before the kitchen renovation can pass final inspection. We handle that reconciliation as part of the project scope and include the timeline in your estimate.
How long does a kitchen remodel take in Los Serranos?
A full gut renovation in Los Serranos typically takes 6 to 10 weeks, depending on structural work and County inspection scheduling. Cabinet refacing and countertop replacement usually finish in 1 to 2 weeks. Call (866) 730-4828 for a project-specific timeline.
Brands We Service in Los Serranos
For ADU shells we work with Abodu, Cover, Dvele, and other prefab manufacturers, and on the exterior we use our brands of James Hardie fiber-cement siding for cladding that handles Santa Ana winds and 100-degree summers without warping or fading. Interior finishes come from our in-house kitchen and bath crew, so you’re not coordinating a shell contractor and a separate tile contractor for the same unit.
Pricing for ADU Company in Los Serranos, CA
| Service | Typical range in Los Serranos |
|---|---|
| Full kitchen gut renovation | $28,000 – $65,000 |
| Cabinet refacing | $8,500 – $18,000 |
| Countertop replacement | $4,500 – $12,000 |
| ADU construction (prefab or site-built) | $150,000 – $350,000 |
| Garage conversion ADU | $120,000 – $280,000 |
| Bathroom remodel | $15,000 – $40,000 |
Prices in Los Serranos push upward when a property sits on the hillside edge with grading or drainage review requirements, when septic systems need evaluation near the old country club area, or when unpermitted past additions must be corrected before the new work can pass. We price upfront and hold the number, with permits pulled and inspections passed as part of the contract. No change orders unless you change the scope.
Neighborhoods We Serve in Los Serranos
We work across the 91709 Los Serranos area, from the hillside-edge streets near the Chino Hills transition down to the flat ranch lots closer to the old country club footprint. Each pocket has its own mix of lot sizes, setback realities, and permit history.
- Los Serranos hillside edge
- Former country club and equestrian area
- Flat ranch-lot grid north of the 71
- Glenmeade and surrounding tract streets
- Properties bordering Chino Hills State Park
Response time for estimates in Los Serranos is typically 2 to 3 business days, depending on County permit office volume and crew scheduling.
Service Area – Cities Near Los Serranos
Bungalow ADU Builders serves Los Serranos and the surrounding Inland Empire communities. If you’re in Chino, CA, Yorba Linda, CA, Montclair, CA, or Pomona, CA, the same team and the same brand-agnostic ADU process apply. We quote free estimates across the whole service area.
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
We usually schedule estimate visits in Los Serranos within 2 to 3 business days and start work 2 to 4 weeks after permit approval, depending on the scope. County Land Use Services in San Bernardino County sets the inspection timeline, not us, and we work around their calendar.
Some Los Serranos subdivisions have HOA architectural review requirements, especially near the former country club area, but most 91709 single-family lots are unincorporated and only need County permits. We check HOA covenants during estimating so your project doesn’t stall mid-build. Call (866) 730-4828 and we’ll verify your lot.
Yes. Hillside-edge lots and properties near the old golf course sometimes require soils review, drainage correction, or septic evaluation before an ADU or major kitchen addition can be permitted. Bungalow ADU Builders has served Los Serranos since 2014 and we have that County review process mapped. Call (866) 730-4828 for a free estimate that includes the full permit path.
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
"The kitchenette layout he suggested made better use of the space than the one on our original sketch."
— Kelly Schaefer"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."
— Wade Pruitt"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."
— Emily Yang