







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Woodland Hills
Hiring a general contractor in Woodland Hills means finding someone who understands hillside lots, county grading rules, and houses built before seismic codes existed. Mason Remodeling Co Woodland Hills handles kitchens, baths, additions, and whole-home work across the 91364 and 91367 ZIP codes, from Warner Center up through the canyons south of Ventura Boulevard. We put every price in writing before any tool leaves the truck, and every crew member arrives with a name, photo, and badge you can verify at the door. Call (831) 290-6866 to schedule a free estimate.
Why Mason Remodeling Co Woodland Hills Is Woodland Hills’s Preferred General Contractor Company

Isaac Pruett leads our team with a straightforward rule: if a homeowner cannot see exactly who is coming and what the job costs in writing, we have not done our job yet. That matters in Woodland Hills, where four out of five homes we walk were built between 1955 and 1975. Those houses carry foundation quirks, hillside grading constraints, and room layouts that flatland crews never see. We do, every week. Reviews from Woodland Hills customers consistently mention the same two things: the bid matched the final invoice, and the crew showed up looking like professionals, not strangers.
Every Mason Remodeling technician is background-checked and identity-verified under the Threshold Standard, a named process we do not skip and do not waive. You get each technician’s name and photo before the visit, then a photo ID badge at the door on arrival. Uniforms are clean, marked, and consistent. For a homeowner who is often home alone or has young kids, that proof is not a perk. It is the point.
Styles & brands we work with







Hire a General Contractor in Woodland Hills
Hire a General Contractor in Woodland Hills and you are signing up for someone to manage the permit path, the crew, the haul logistics, and the county’s hillside grading triggers before they become stop-work orders. On acreage parcels especially, that last part is not optional. A kitchen remodel inside an existing footprint runs $14,000 to $45,000. A home addition on a canyon lot runs $45,000 to $130,000, and the difference usually comes down to access, grading, and foundation work, not cabinet choices.
Hillside and Acreage Sequencing
We scope the cut, the fill, the haul route, and the material drop locations before we quote. On lots south of Ventura Boulevard, that often means hand-carrying sheet goods down a grade because a truck cannot turn around. We price that labor honestly instead of burying it in change orders later.
Permits First, Demo Second
LA County’s Hillside Grading Ordinance triggers geological and soils reports for cuts deeper than three feet or fills taller than five feet. That is not a suggestion. If we see a slope that needs a grading plan review, we file it before demolition, because an inspector will catch it and the job stops cold.
General Contractor Services in Woodland Hills
General Contractor Services in Woodland Hills cover the work most people only do once or twice in a lifetime, which is exactly why the written scope matters so much. A garage conversion runs $30,000 to $80,000. A detached ADU on county acreage runs $90,000 to $220,000, and the wide range is real: leach field setbacks, well line distances, and power upgrades each move the number in a way a flatland estimate misses. We give you line-item pricing so you can see what is driving cost before you sign anything.
Additions and ADUs on Canyon Lots
Foundation access is the quiet budget killer here. If a concrete pump cannot reach the pour site, we bring in a line pump, which adds mobilization cost. We scope that before quoting, not after.

Whole-Home Work That Respects the 1960s Bones
Post-war ranch and mid-century modern homes in the hills have framing you cannot just cut into. We plan load paths, temporary beams, and inspection sign-offs before rough-in starts, so the house stays standing while it is opened up.

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.
Trusted Brands We Service in Woodland Hills
We install and service specification-grade materials from Toto, Schluter, American Standard, and Sterling in Woodland Hills homes. We know the Toto and American Standard plumbing rough-in specs without opening the installation manual on site, and we stock Schluter trim profiles locally so shower and backsplash work does not stall waiting on a part. Since our crews are already staged in the San Fernando Valley, material runs to Woodland Hills are same-day when a fitting is needed mid-job. That matters on a steep lot where second trips burn time and money.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Woodland Hills Homes
- Haul costs eaten by the contractor instead of scoped up front. Canyon access means every sheet of drywall, every bundle of shingles, every bag of mortar travels further and slower. If the scope of work does not name the haul and access line item, you are either paying it as a change order or watching the crew rush it.
- Grading plan review skipped to save two weeks. On any cut over three feet, the county wants soils and geology. Skip it and the inspector issues a stop-work order the moment they see the cut slope. We file it first.
- Septic and well setbacks misread as city setbacks. On Woodland Hills acreage with a septic system, the county enforces separation distances between the leach field and any new structure. A detached ADU or shop often has to move 20 feet or more from where the city rules would allow it. We measure against the actual county setback table before drawing the footprint.
- Stucco cracking within a year on a hillside remodel. The hot Woodland Hills summers, regularly over 100°F, accelerate expansion and contraction cycles on south-facing stucco and exterior trim. If the original remodel did not include proper control joints and moisture barrier at the slope side, cracking shows fast. We spec that work from the start.
Pricing for General Contractor in Woodland Hills, CA
Here are the Woodland Hills market ranges we quote from. Exact pricing depends on your lot, your access, and your permit path, and you deserve to see those numbers before you commit.
| Project | Typical Woodland Hills Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
Every quote we give is a written price delivered before work starts. No verbal estimate that grows on the final invoice. Call (831) 290-6866 to schedule your free estimate and get the real number for your specific address.
We Also Serve Cities Near Woodland Hills
Our crews serve Woodland Hills plus the surrounding communities of Canoga Park, Topanga, Tarzana, and West Hills. If your property sits close to a border, we will confirm scheduling and material routes as part of the estimate. For the full scope of our work, see our General Contractor service page.
Serving Woodland Hills, CA - Our Local Coverage Area
We’re based in the Woodland 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 Woodland Hills
If your property is in unincorporated LA County or governed by county grading and septic rules, you need county permits for the ADU, and the septic and well setback rules come from the county environmental health department. If you are inside Woodland Hills city limits, city building permits apply, but hillside grading still falls under the county’s Hillside Grading Ordinance in most canyon areas. We check both before filing. Call (831) 290-6866 and we will pull the right path for your address.
County rules require minimum separation distances between a septic leach field or well and any new structure, often 20 feet or more from the nearest line. That single rule can shift an ADU footprint across the buildable envelope or shrink a shop’s size. We measure the actual setback distances on your survey before we quote, so the plan we hand you is buildable as drawn. Schedule a free estimate at (831) 290-6866.
Hillside homes here face hot summer temperatures and Santa Ana wind cycles that expand and contract exterior stucco and wood rapidly. If the previous remodel did not add control joints, a proper drainage plane, and slope-side flashing, cracks appear within a year. We spec those details on every exterior wall we touch, particularly on south-facing exposures. Call us to look at the existing work and quote a repair that lasts.
If the cut stays under three feet in depth and you are not changing drainage patterns that affect a neighbor or a county-maintained slope, you may avoid a full grading plan review. The moment the cut approaches three feet, the county requires soils and geology. We survey the slope before design, because guessing wrong means a stop-work order and a redesign. We would rather tell you the truth on the first visit. Call (831) 290-6866.
On a steep canyon lot, we typically scope driveway and material haul as a separate allowance line item rather than burying it in the general conditions number. Expect it to reflect the number of material drops, the equipment needed, and whether a transfer or hand-carry is required to get sheet goods from the street to the foundation. We show you the exact allowance before work starts and adjust it only with your sign-off. Call for a written quote.
On a steep lot south of Ventura Boulevard, we managed a kitchen addition for a 1962 ranch whose upside-down floor plan put the kitchen above a garage with a zero-lot-line on one side. Our crew sequenced material drops from Ventura Boulevard with two-hour street parking holds, then hand-carried sheet goods down a 14-step grade before cutting the load-bearing wall. We installed a temporary steel beam and scheduled a pre-cover inspection sign-off for the new footing before the subfloor rough-in could start. That is what general contracting in Woodland Hills actually looks like.
If you are planning a kitchen, bath, addition, or whole-home project in Woodland Hills, start with the written price. Call (831) 290-6866 and we will schedule your free estimate, walk the lot with you, and show you exactly who is coming, what it costs, and what is guaranteed for 365 days after completion.
Written by Isaac Pruett, Owner at Mason Remodeling Co Woodland Hills, serving Woodland Hills since 2004.










