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
Los Serranos sits in a corner of the Inland Empire where construction work is shaped by hills, fire codes, and homes that have stood through decades of Santa Ana winds. Timberline Contractors handles home renovation, full-scale remodels, additions, and ADU construction across the 91709 ZIP, bringing 50-plus brand partners and a single contract to every phase. We’ve served Los Serranos since 2018, and the terrain here means we plan for slope drainage and defensible-space requirements that flatland builders never think about. Call (866) 253-5808 for a free estimate.
Why Los Serranos Homes Are Different
Los Serranos is an unincorporated community at the edge of Chino Hills, where 1980s-to-2000s Mediterranean and Spanish-revival stucco homes with tile roofs climb graded pads cut into the hillsides. Many properties back directly onto Chino Hills State Park or Carbon Canyon, which puts them in a Very High Fire Hazard Severity Zone. That triggers Chapter 7A fire code requirements on exterior work: ignition-resistant vents, ember-resistant decking, Class A roofing, and specific stucco detailing at eaves and soffits. Flatland builders south of here rarely deal with that layer.
The same slopes that give those homes their views create drainage and soil-stability problems. Intense winter storms send water moving across lots, and homes built thirty or forty years ago often lack the drainage infrastructure newer subdivisions include. When we plan a room addition or an exterior remodel in Los Serranos, we’re usually looking at hillside grading, retaining-wall condition, and how water moves off the pad. HOA architectural review committees add another step on many streets backing the State Park, so material choices and rooflines get scrutinized before permits are even pulled.
Styles & brands we work with







Our Main Los Serranos Services
Two services account for most of our work in Los Serranos: full general-contractor engagements that tie interior and exterior work into one contract, and whole-home remodeling projects that touch multiple rooms and systems at once.
General Contractor in Los Serranos
Acting as your general contractor in Los Serranos means one accountable point for every trade, every permit, and every material decision. On hillside lots near Carbon Canyon, that accountability matters. We sequence work so grading, drainage, and fire-resistant exterior details are handled before interior finishes go in. We manage HOA submittals, Fire Marshal sign-offs, and structural engineering for additions on sloped pads. You’ll get one contract that spans stucco repair, roof work, interior renovation, and everything between. General Contractor in Los Serranos

Home Remodeling in Los Serranos
Home remodeling in Los Serranos frequently means updating a 1980s or 1990s production home without disturbing the stucco-and-tile character that fits the neighborhood. We remodel kitchens and bathrooms, replace windows and doors, rework floor plans, and add square footage where the pad allows. Homes on hillside streets often need foundation or drainage correction as part of the remodel, and we handle that under the same contract rather than sending you to a separate specialist. Home 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.
Home Renovation in Los Serranos

Home renovation in Los Serranos solves a specific problem: houses built two to four decades ago are aging out of their original systems and finishes at the same time. Old tile roofs need attention, stucco shows wear from Santa Ana winds, windows lack modern glass, and interiors reflect floor plans that don’t fit how people live now. Add the hillside drainage and fire-zone requirements, and renovation here is more involved than a paint-and-carpet refresh. Timberline Contractors brings one contract to the entire scope through our Home Renovation process, from the foundation to the ridge cap.
Home Renovation Contractors
Signs you need it
Multiple systems – roof, stucco, windows, interior finishes – are showing age at the same time, and piecemeal repairs aren’t keeping up.
What it costs in Los Serranos
Renovation work in Los Serranos typically runs $14,000 – $45,000 for a kitchen, $9,000 – $28,000 for a bathroom, and $45,000 – $130,000 for a home addition depending on scope and hillside conditions.
How we do it
We start with a site walk to assess drainage and fire-zone requirements, then deliver a written scope covering every trade, material, and permit before any work begins.
Home Improvement Contractors
Signs you need it
You have a list of upgrades – countertops, vanities, driveway, fencing, a shower conversion – that no longer makes sense to schedule one trade at a time.
What it costs in Los Serranos
Individual improvements range from $800 – $2,500 for backsplash work to $3,500 – $9,000 for a vinyl fence and $7,000 – $18,000 for a paver driveway in Los Serranos.
How we do it
We bundle your improvements into one schedule and one contract so trades don’t trip over each other, and material selections happen once instead of five times.
What Home Renovation Costs in Los Serranos
| Item | Typical range in Los Serranos |
|---|---|
| Kitchen remodel | $14,000 – $45,000 |
| Bathroom remodel | $9,000 – $28,000 |
| Home addition | $45,000 – $130,000 |
How long does a home renovation take in Los Serranos?
A kitchen or bathroom typically takes 4 – 8 weeks; a whole-home renovation or addition runs 3 – 6 months. Hillside lots near the State Park can add weeks for grading review and HOA approval. Call (866) 253-5808 for a timeline specific to your scope.
Will the price change once work starts on my Los Serranos renovation?
Not if the scope doesn’t change. We price from a written line-item scope and don’t write change orders for our own misses. If we open a wall and find something structural, you’ll see it, understand it, and approve any adjustment before it’s done. Estimates are free at (866) 253-5808.
Brands We Service in Los Serranos
Timberline Contractors brings more than 50 manufacturer partners to Los Serranos jobs, including GAF, CertainTeed, and Owens Corning roofing systems, plus Grohe plumbing fixtures. Materials are ordered after your selection, delivered to the site, and installed by crews trained on each brand’s specifications. See our brands for the full roster.
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 |
| Bathroom remodel | $9,000 – $28,000 |
| Roof replacement | $8,000 – $20,000 |
| Window replacement | $4,500 – $15,000 |
| Paver driveway installation | $7,000 – $18,000 |
| ADU construction | $90,000 – $220,000 |
| Home addition | $45,000 – $130,000 |
| Garage conversion | $30,000 – $80,000 |
Slope work, fire-resistant material upgrades, and HOA-required architectural changes all push pricing upward in Los Serranos. What doesn’t change is our pricing structure: written line-item quotes, fixed scope, and no change orders for our own oversights.
Neighborhoods We Serve in Los Serranos
Our Los Serranos work spans the full 91709 ZIP, from the hillside streets backing Chino Hills State Park to the older ranch-era properties near Carbon Canyon and the planned subdivisions between. Typical response time for a free estimate in Los Serranos is 1 – 3 business days.
- Carbon Canyon hillside streets
- Chino Hills State Park border properties
- Los Serranos planned subdivisions
- Ranch-era properties near Carbon Canyon
- Graded hillside custom home pads
Service Area – Cities Near Los Serranos
Timberline Contractors also serves homeowners in Chino, CA, Yorba Linda, CA, Montclair, CA, and Pomona, CA. If your project sits outside the 91709 ZIP, call us and we’ll confirm coverage.
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
We typically schedule a free site walk within 1 – 3 business days of your call. Once you approve a written scope, we order materials and file permits. HOA reviews on State Park border streets can add two to four weeks, which we factor into your schedule up front.
Yes. We prepare HOA architectural submittals for exterior work and coordinate directly with the Fire Marshal on Chapter 7A requirements – ignition-resistant vents, ember-resistant decking, Class A roofing. You won’t be left to interpret fire-code paperwork on your own.
We pull every permit the project requires, schedule inspections, and stay through final sign-off. Unincorporated San Bernardino County rules apply in Los Serranos, and we understand how those interact with HOA covenants. Call (866) 253-5808 to talk through your project.
Timberline Contractors has served Los Serranos since 2018 with full-scope renovation, remodeling, and ADU construction. One contractor, every phase – from the foundation to the ridge cap. Call (866) 253-5808 for your free estimate.
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
"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."
— Vivian Nguyen"He caught an error in the engineer's drawings before it got framed, which would have been an expensive thing to discover later."
— Tracy Anderson"Framing crew was meticulous and the walls are straight everywhere. Drywall goes on a lot better when the framing is right."
— Luis Mendoza