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 two very different kinds of houses: mid-century ranch homes on aging slab foundations along the older corridor, and larger 1980s-to-2000s builds climbing the hillside tracts off Soquel Canyon and Carbon Canyon. The terrain, the dry heat, and San Bernardino County permitting all shape how a renovation should be planned and priced here. Key Step Construction has served Los Serranos since 2017, and we handle renovation work from the first structural assessment to final inspection. Call (855) 382-0824 to talk through your project.
Why Los Serranos Homes Are Different
Los Serranos is an unincorporated Chino Hills area in ZIP 91709, which means construction runs through San Bernardino County permitting rather than a municipal building department. That changes timelines, inspection schedules, and the paperwork trail on nearly every renovation. It also means we coordinate directly with county reviewers who apply hillside and wildland-interface standards that a flatter, incorporated city would never trigger.
The housing stock splits roughly two ways. The older Los Serranos streets hold mid-century ranch homes, many still on original sewer laterals and settling slab-on-grade foundations. Those homes often need full guts, repiping, panel upgrades, and structural correction before finish work makes sense. The hillside tracts off Soquel Canyon and Carbon Canyon are a different animal: expansive clay soil, slope drainage, retaining walls, and ember-resistant exterior requirements driven by the Chino Hills State Park interface. A renovation on a hillside lot has to account for water moving downhill and fire moving uphill. We plan for both.
Styles & brands we work with
- Kitchen remodeling
- Bathroom remodeling
- Home additions & ADU
- Roofing
- Windows & doors
- Driveway & pavers
- Fence
Our Main Los Serranos Services
Most Los Serranos homeowners reach out for two reasons: they need a general contractor who can pull the entire project together under one contract, or they are ready to remodel and want the scope managed by one accountable team rather than a rotating cast of specialty trades.
General Contractor in Los Serranos
Acting as the General Contractor in Los Serranos means we hold the schedule, the subs, the materials, and the permit paperwork. For a hillside addition or a full-home renovation, that single point of accountability matters because county permitting in an unincorporated area leaves no room for finger-pointing when an inspection gets flagged. We walk every Los Serranos project through San Bernardino County requirements, from grading and drainage review to final sign-off.
Home Remodeling in Los Serranos
Home Remodeling in Los Serranos spans kitchens, bathrooms, additions, and exterior replacement work. The older ranch homes along the Los Serranos corridor often hide surprises behind drywall: corroded galvanized supply lines, undersized electrical panels, and slab cracks that show up as soon as cabinets come out. We scope for those realities up front so the remodel budget does not get ambushed three weeks in.
Home Renovation in Los Serranos
Home renovation in Los Serranos is rarely a surface-level project. The combination of aging mid-century stock, hillside drainage pressures, and county-level permitting means most renovations here involve some structural correction, some systems replacement, and a lot of coordination. That is exactly the scope Key Step Construction is built to run. From the roof down to the foundation, one contractor handles the sequence so the homeowner never has to broker between a plumber, an electrician, and a county inspector. Our Home Renovation approach means the renovation is planned once and built right.
Home Renovation Contractors
Signs you need it
Sloped floors, cracked drywall at door corners, recurring drainage against the foundation, or systems that have simply aged past their service life are common triggers on Los Serranos homes.
What it costs in Los Serranos
Full home renovations in Los Serranos typically fall between $45,000 and $130,000 depending on square footage, structural work, and finish level.
How we do it
We start with a structural and systems assessment, file the San Bernardino County permits, correct any foundation or drainage issues, then sequence rough-in, finishes, and final inspections under one schedule.
Home Renovators
Signs you need it
You have a 1960s ranch or a 1990s hillside build that needs multiple trades touched at once, and you do not want to manage five separate phone numbers and four separate schedules.
What it costs in Los Serranos
A whole-home renovation handled by a single renovator in Los Serranos runs $45,000 to $130,000, with smaller phased renovations starting around $14,000 for a single-room scope.
How we do it
Key Step Construction carries every trade under one contract from demo through final inspection, including the county-required drainage, grading, and fire-hardening details on hillside lots.
What Home Renovation Costs in Los Serranos
| Item | Typical range in Los Serranos |
|---|---|
| Whole-home renovation | $45,000 – $130,000 |
| Kitchen remodel | $14,000 – $45,000 |
| Bathroom remodel | $9,000 – $28,000 |
How long does a full home renovation take in Los Serranos?
Most whole-home renovations in Los Serranos run three to six months. County permit review in an unincorporated area can add two to four weeks before work starts. Call (855) 382-0824 for a realistic timeline on your scope.
Does Key Step Construction handle the San Bernardino County permits?
Yes. We prepare and file the permit package, respond to plan-check comments, and manage the inspection schedule through final approval. You do not chase the county, we do.
Brands We Service in Los Serranos
We service and install fencing and exterior products from Master Halco, Ameristar, and Bufftech across Los Serranos. See our brands for the full scope.
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 |
| Paver patio installation | $3,500 – $11,000 |
| Roof replacement | $8,000 – $20,000 |
| Window replacement | $4,500 – $15,000 |
| Vinyl fence installation | $3,500 – $9,000 |
| ADU construction | $90,000 – $220,000 |
| Garage conversion | $30,000 – $80,000 |
Prices in Los Serranos get pushed upward by hillside grading, drainage corrections, structural work on older slabs, and fire-hardening details required near the Chino Hills State Park interface. Every Key Step Construction estimate is a written line-item quote, and we do not change the number once work starts without a signed change order you approve first.
Neighborhoods We Serve in Los Serranos
We work across the full Los Serranos footprint, from the original mid-century corridor to the newer hillside tracts. Our crews know the difference between a flat street-level ranch and a Soquel Canyon slope lot, and we schedule accordingly.
- Los Serranos corridor (original ranch homes)
- Soquel Canyon hillside tracts
- Carbon Canyon area
- Butterfield Ranch border streets
- Sleepy Hollow-adjacent foothills
Typical response for a Los Serranos estimate request is within one to two business days.
Service Area – Cities Near Los Serranos
Beyond Los Serranos, Key Step Construction routinely works across the surrounding Chino Hills and Inland Empire communities. We serve Chino, CA to the east, Yorba Linda, CA to the southwest, Montclair, CA to the north, and Pomona, CA to the west. If you are anywhere near the 91709 corridor, call (855) 382-0824 to confirm coverage.
Serving Los Serranos, CA - Our Local Coverage Area
We serve Los Serranos and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About Remodeling Company in Los Serranos
Yes. Because Los Serranos is unincorporated San Bernardino County, all structural, electrical, plumbing, and grading work goes through county permitting, not a city hall. Key Step Construction prepares and files the full package and manages every inspection through final approval.
Yes, but exterior work near the Chino Hills State Park interface may face additional defensible-space and ember-resistant requirements. We schedule interior scopes regardless of season and coordinate exterior phases around county fire restrictions when they apply.
Most Los Serranos homeowners receive a written estimate within one to two business days of the site walk. Call (855) 382-0824 to schedule the walk-through and get a fixed, line-item number before you commit to anything.
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
"Allowances in the contract were realistic rather than artificially low to make the bid look good."
- Dale Schaefer"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 Morales"Quality construction and a professional operation. Communication was strongest at the site meetings, and slower by email in between."
- Beatriz Salazar