Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Remodeling Company in Los Serranos, CA
Home renovation in Los Serranos means working with a housing stock that swings from 1960s ranch homes on oversized equestrian lots to newer master-planned tracts along Butterfield Ranch Road, all of it sitting in San Bernardino County’s high-fire-severity foothill zone. Alder Contractors has served Los Serranos since 2013, and we’ve learned that every project here, whether it’s a kitchen remodel or a full exterior overhaul, has to account for County Fire’s WUI review and Chino Valley Unified’s facility-fee coordination before the first wall comes down. Call (833) 467-7020 for a free estimate, and we’ll walk the property with you to map out what your specific project will actually require.
Why Los Serranos Homes Are Different
Los Serranos is one of the few unincorporated foothill pockets of San Bernardino County where new construction and remodels routinely trigger both County Fire’s high-fire-severity WUI review and Chino Valley Unified School District facility-fee coordination, a double regulatory layer that builders in neighboring Chino Hills or Yorba Linda never face. That means a home renovation here is not a copy-paste job from the flatlands. The housing stock is split between older ranch-style and equestrian homes on large lots near Los Serranos Country Club and the newer master-planned tracts along Butterfield Ranch Road, so construction crews regularly mix wood-frame tract methods with custom block-and-stucco or barn-and-outbuilding work on the same street. Add in the Santa Ana winds and steep grades, and you get a very specific set of constraints: ember-resistant vents, non-combustible siding requirements on additions, and defensible-space setbacks that influence where a new ADU or home addition can even sit on the lot. We know which plan check comments are coming because we’ve seen them come back from the County on Los Serranos jobs for over a decade.
Styles & brands we work with







Our Main Los Serranos Services
Most Los Serranos homeowners call us for one of two things: a full general contracting engagement where they want one accountable partner across every trade, or a defined home remodeling project like a kitchen, bath, or exterior replacement. Both start with the same conversation about what your specific lot and home require.
General Contractor in Los Serranos
When a Los Serranos project spans multiple trades, whether that’s a room addition plus a paver driveway or a full interior renovation with new roofing and siding, a general contractor is the only way to keep the County Fire plan check, school district fees, and trade scheduling from becoming a second full-time job. We run the permit submittals, coordinate the inspections, and keep one master schedule so the stucco crew, the roofer, and the electrician are not stepping on each other. See how we structure a full Los Serranos engagement on our General Contractor in Los Serranos page.

Home Remodeling in Los Serranos
Remodeling an existing Los Serranos home carries its own logic. Older ranch homes near the Country Club tend to have good bones but outdated layouts, while the Butterfield Ranch Road tracts often need finish upgrades more than structural work. Either way, the foothill location means we’re factoring fire-resistant materials and venting into what would otherwise be a straightforward interior job. We’ve detailed the full scope and local pricing on our Home Remodeling in Los Serranos page, including what to expect from the first site walk through final inspection.

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.
Home Renovation in Los Serranos
Home renovation in Los Serranos is rarely a one-room project. The older ranch homes near Los Serranos Country Club were built in an era of compartmentalized floor plans, and the newer tracts along Butterfield Ranch Road often need whole-home finish packages to feel cohesive. Because Los Serranos sits in the Chino Hills foothills, every renovation we take on has to clear County Fire’s WUI review, which frequently adds non-combustible siding and ember-resistant vent requirements that don’t exist a few miles down the hill in Chino Hills proper. That’s exactly the kind of thing we handle under a single Home Renovation contract so you’re not chasing separate vendors for fire-hardening work, interior finishes, and the inevitable change orders in between.
Home Renovation Contractors
Signs you need it
You’re managing three different trade crews with three different schedules, or you pulled permits only to find the plan check requires fire-resistant materials you never budgeted for.
What it costs in Los Serranos
Whole-home renovations in Los Serranos typically land between $45,000 and $130,000 for a home addition, with interior-only scopes running anywhere from $14,000 to $45,000 depending on the rooms involved.
How we do it
We start with a site walk to map the existing conditions, run the County Fire and Chino Valley Unified fee coordination up front, then build a single trade schedule so demo, rough-in, finish, and fire-hardening work move in one sequence instead of four competing agendas.
Home Renovators
Signs you need it
Your home’s layout was designed for how families lived in the 1970s, and you’re ready to reconfigure walls, systems, and finishes rather than patch it one room at a time.
What it costs in Los Serranos
A full interior renovation in Los Serranos falls between $45,000 and $130,000, with kitchen remodels running $14,000 to $45,000 and bathroom remodels running $9,000 to $28,000.
How we do it
We pull the permit set, coordinate the County Fire review and school district fees, then sequence demolition, framing, rough-in trades, and finishes under one accountable crew relationship so the project doesn’t stall waiting on a sub we never met.
Home Improvement Contractors
Signs you need it
You want to upgrade finishes and systems across multiple rooms, but you’d rather not piece together bids from a cabinet shop, a countertop fabricator, and a plumber who won’t return calls.
What it costs in Los Serranos
Home improvement scopes in Los Serranos range from $14,000 to $45,000 for a kitchen remodel and $9,000 to $28,000 for a bathroom, with smaller upgrades like backsplash installation landing between $800 and $2,500.
How we do it
We bring the material partners, the trade crews, and the permit coordination under one contract so you get Cambria quartz or Kohler fixtures specified, ordered, and installed without a separate designer middleman or a mismatched sub schedule.
What Home Renovation Costs in Los Serranos
| Item | Typical range in Los Serranos |
|---|---|
| Home Addition | $45,000 – $130,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
How long does a home renovation take in Los Serranos?
Expect 10 to 16 weeks for a whole-home renovation once permits clear. County Fire plan check and Chino Valley Unified fee processing typically add 3 to 5 weeks on the front end compared to homes in incorporated cities. Call (833) 467-7020 for a timeline specific to your scope.
Will the price change once work starts in Los Serranos?
Our quotes are written as fixed-price, line-item estimates. The only adjustments come from documented change orders you approve in writing, or from County plan check conditions we could not have known before submittal. Call (833) 467-7020 to get your exact number in writing.
Brands We Service in Los Serranos
Alder Contractors installs and services products from more than 50 name-brand manufacturers, including PGT impact windows, CGI doors, and Tamko roofing. Parts for these systems are ordered directly through our supplier network, which keeps lead times predictable for Los Serranos remodels. See the full list on our brands page, from roofline to backyard.
See the difference
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AfterPricing for Remodeling Company in Los Serranos, CA
| Service | Typical range in Los Serranos |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Bathroom Remodel | $9,000 – $28,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
What pushes a Los Serranos project toward the top of these ranges is usually the County Fire plan check conditions: non-combustible siding, ember-resistant vents, and defensible-space grading all add material and labor that flatland cities never require. We write those costs into your quote up front so the number we agree on is the number you pay, not a starting point.
Neighborhoods We Serve in Los Serranos
We run projects throughout the 91709 ZIP code, from the equestrian lots near Los Serranos Country Club to the newer tracts along Butterfield Ranch Road. Our crews are familiar with the County Fire requirements that apply to every one of these pockets, and we’re usually able to start site work within two to three weeks of permit approval.
- Los Serranos Country Club area
- Butterfield Ranch Road tracts
- Equestrian and ranch lots east of the Country Club
- Foothill parcels along the Chino Hills boundary
- Older ranch-home pockets in the 91709 corridor
Service Area – Cities Near Los Serranos
Alder Contractors also runs full-scale remodels and renovations in the communities around Los Serranos. We work regularly in Chino, CA, Yorba Linda, CA, Montclair, CA, and Pomona, CA, and we bring the same County Fire and school district knowledge to every foothill project we take on.
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 Remodeling Company in Los Serranos
Yes. Every structural, electrical, plumbing, and fire-hardening scope we touch in Los Serranos goes through San Bernardino County permit review, and we coordinate the Chino Valley Unified facility fees on additions and ADUs. We don’t offer unpermitted work, and we don’t start a job that hasn’t cleared plan check.
Once you approve the estimate and we submit the permit set, expect 3 to 5 weeks for County Fire plan check and school district fee processing before site work begins. That’s longer than incorporated cities, but it’s the reality of building in an unincorporated foothill zone. Call (833) 467-7020 to get your project in the queue.
Yes, that’s the entire point of working with a single general contractor. Roofing, siding, windows, doors, interior renovation, hardscape, fencing, and ADU construction all run under one contract and one accountable schedule. You’re not juggling four vendors with four permit submittals and four sets of change orders.
Call (833) 467-7020 for a free, written, line-item estimate on your Los Serranos renovation. One contractor. Every phase. From the roofline to the backyard.
What happens when you call
- 1A real person answersNo phone trees — talk to a local construction 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 foundation survey came back dead on. Everything downstream of that being square is the reason the rest of the build went smoothly."
— Brooke Ziegler"Excellent build. Costs came in about six percent over the original contract, driven mostly by material price movement during the build, which he documented each time."
— Luis Garcia"Framing crew was meticulous and the walls are straight everywhere. Drywall goes on a lot better when the framing is right."
— Emily Chen