







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across West Hills
General contractor work in West Hills typically runs $9,000 to $130,000 depending on scope, and the number that matters most is the one written on your contract before we open a single wall. Mason Remodeling Co Woodland Hills serves the full West Hills area with crews who know what’s behind the stucco on the older tract homes off Victory and Roscoe. If you’re planning a kitchen, bath, addition, or whole-home remodel, call (831) 290-6866 for a free written estimate.
What separates a clean remodel from a running tab in West Hills is what you do before demolition starts. More on that below.
Why Mason Remodeling Co Woodland Hills Is West Hills’s Preferred General Contractor Company

Homeowners in West Hills choose us for the same reason they check the peephole before opening the door. They want to know exactly who’s coming, what it costs, and what happens if the work isn’t right. Our General Contractor team delivers a written price before any work begins, on every project, every time. Not a verbal estimate. Not a range that drifts. A written number you approve before we unpack a tool.
Every crew member who walks onto a West Hills job site is background-checked, identity-verified, and introduced to you by name and photo before the visit. This is the Threshold Standard, and it’s how we’ve operated since 2004 as part of the Threshold Group family. The technician at your door carries a photo ID badge and wears a clean, marked uniform. You’ll never wonder who’s in your home.
Isaac Pruett leads our team with a simple rule: inspection happens before the quote, not after the contract. On older West Hills homes, that changes everything. A 1968 ranch on a quiet street off Saticoy might look fine until you open the walls and find galvanized plumbing pitted to pencil-lead thickness and a load-bearing header two sizes too small for the span. We catch those before framing starts, not after your kitchen island is half built.
Styles & brands we work with







Residential General Contractor in West Hills
Residential General Contractor work in West Hills covers the full scope of structural and finish construction on single-family homes: kitchens, baths, room additions, ADUs, and whole-home remodels. What makes it different here is the ground your house stands on. West Hills sits on deep alluvial deposits and against the Santa Monica Mountains, so many older homes have expansive soils that swell and shrink with seasonal moisture. Load-bearing wall moves and foundation-adjacent work often require soil reports and seismic retrofits that flatland Valley cities rarely trigger. A contractor who skips that step stalls your permit and burns your timeline.
Pre-Construction Inspection
Before we quote a West Hills remodel, we walk the house, check the crawlspace, and look at what previous owners left behind. Clay sewer laterals in the older flatland tracts near Platt Village tend to suffer root intrusion from mature street trees. We identify that before it becomes a problem during rough-in.
Seismic and Soils Compliance
Hillside lots near the Santa Monica Mountains boundary add grading and drainage review requirements. We coordinate with the city’s strict hillside grading process, order soil reports when the scope requires them, and write those costs into your contract as line items, not surprises.
Hire a General Contractor in West Hills

Hire a General Contractor in West Hills when the job involves structural changes, permit work, or multi-trade coordination. The dollar figures here are real: a kitchen remodel in West Hills runs $14,000 to $45,000, a bathroom $9,000 to $28,000, and a home addition $45,000 to $130,000. Those are written ranges, not guesswork, and they reflect what’s actually happening in this market right now.
Written Allowances for Unknowns
The honest truth about opening a 1960s West Hills home is that you don’t know everything until the drywall comes off. So we write allowances into the contract: a specific dollar amount reserved for specific unknown conditions. When we opened the walls on a 1968 ranch on Saticoy Street, we found original galvanized plumbing and an undersized load-bearing header. The owner approved a written change order for trenchless repiping and a new LVL beam before we framed the kitchen island. That’s how it should work.
Permit and Inspection Handling
We pull the permits, schedule the inspections, and stand there when the inspector walks through. You don’t act as your own project manager. Our team handles the process from first inspection to final sign-off.
Trusted Brands We Service in West Hills
Our West Hills clients get access to specification-grade materials without having to source them themselves. For kitchens, that means KraftMaid and Wellborn cabinetry. For deck construction and exterior work, we install James Hardie siding. These aren’t big-box seconds; they’re professional-grade product lines we stand behind with our 365-Day Done Right Promise. If the work isn’t right within a year of completion, we make it right at no cost to you.
See the difference
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AfterCommon General Contractor Problems We See in West Hills Homes
- Expansive soil movement. The deep alluvial deposits under West Hills swell and shrink with seasonal moisture, shifting foundations and cracking stucco. Load-bearing work here needs a soil report before design is finalized, not after the demo crew leaves.
- Failing original plumbing. Homes built in the 1960s and 1970s with cast iron and galvanized lines are reaching failure age. We spot pitted galvanized pipe and root-intruded clay laterals during pre-construction inspection and write the replacement into your contract.
- Undersized framing on load-bearing walls. Older West Hills homes were built to older codes. Headers that were fine in 1970 don’t pass today’s span requirements once you remove a wall. We check before we quote.
- Wildfire-risk material choices. Santa Ana winds push fire danger into hillside neighborhoods. We recommend fire-resistant siding and construction details that meet current defensible-space requirements, which also means fewer code corrections later.
Pricing for General Contractor in West Hills, CA
Every quote we write for West Hills comes as a fixed, line-item price before work starts. No verbal ballparks, no allowances that magically expand. The table below reflects current market ranges for the projects we handle most often in this city:
| Project | West Hills Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
What moves the number within each range? Square footage, layout changes, material grades, and what we find behind the walls. When we find something, you get a written change order with a fixed price before we touch it. Call (831) 290-6866 for your free estimate.
We Also Serve Cities Near West Hills
Our crews work throughout the western San Fernando Valley. If you’re in Canoga Park, Woodland Hills, Winnetka, or Calabasas, we bring the same written-price model and inspection-first process. Serving West Hills is our focus, but our service area covers the surrounding communities on every side of the city.
Serving West Hills, CA - Our Local Coverage Area
We’re based in the West Hills 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 General Contractor in West Hills
Opening walls on a 1960s West Hills home usually triggers electrical grounding upgrades, smoke detector requirements, seismic strapping for the water heater, and often full AFCI/GFCI circuit protection on any touched wiring. If we’re doing structural work, the city also checks shear wall and header sizing against current code. We write these upgrades into your contract as line items so the permit review doesn’t turn into a surprise. Call (831) 290-6866 for an exact assessment of your home.
Yes, in most cases hillside additions in West Hills require a soils report because the area sits on expansive alluvial deposits that move with seasonal moisture, and the city’s grading review will not sign off without one. We order the report, coordinate with the geotechnical engineer, and include the cost in your written estimate before you commit. Call (831) 290-6866 to discuss your specific lot.
We camera-inspect the lateral before we quote any project that touches plumbing or foundation. Many flatland West Hills homes still have original clay laterals with root intrusion from mature street trees, and replacing one mid-project adds real cost. We either write the replacement into the contract or schedule it as a defined allowance with a fixed price before work starts. Call (831) 290-6866 and we’ll check yours.
We typically find undersized load-bearing headers, missing shear panels, and occasional termite damage where outdoor planters sat against stucco. Homes built to older codes often need an LVL beam or additional shear wall once we remove a wall for a new open floor plan. We identify these in the pre-construction inspection and price them into your written quote, not as a change order surprise. Call (831) 290-6866 to schedule your inspection.
Homes near the Santa Monica Mountains in West Hills face Santa Ana wind-driven wildfire risk, so the city enforces fire-resistant siding, ember-resistant vents, and defensible-space setbacks on permitted work. This means using materials like James Hardie fiber cement, spark-arresting vents, and Class A roofing. We build to those standards on every hillside project and include the cost in the written quote. Call (831) 290-6866 to discuss your project.
Written by Isaac Pruett, Owner at Mason Remodeling Co Woodland Hills, serving West Hills since 2004.










