







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Mission Hills
General contractor work in Mission Hills usually falls into two buckets: bringing a 1940s-1960s home up to current structural and energy codes, or fixing what someone else framed wrong. Mason Remodeling Co Woodland Hills handles both, and we always start with the same step: pulling county assessor records before we write a single line item. That matters here more than almost anywhere else in the Valley, because Mission Hills is unincorporated Los Angeles County territory, which means plan check runs through the County against the 2022 California Building Code, not through a city hall down the street. If you’re planning a kitchen remodel, addition, or garage conversion, call (831) 290-6866 and we’ll walk you through what the County will actually require.
Why Mason Remodeling Co Woodland Hills Is Mission Hills’s Preferred General Contractor Company

We’ve spent years on job sites in Mission Hills, and the work here has a rhythm all its own. Homes on lots north of Devonshire, around the 91345 ZIP, tend to have detached garages that were quietly converted into living space decades ago. Homes closer to Sepulveda Basin often sit on expansive clay that shifts enough to crack stucco and open foundation gaps. Our General Contractor team approaches every Mission Hills project the same way: verify the actual structure against county records, identify what needs retrofitting, then price the work in writing before any crew member steps on the property.
Every Mason Remodeling Co Woodland Hills technician goes through the Threshold Standard: background-checked, identity-verified, uniformed, and introduced to you by name and photo before arrival. That’s not a courtesy. It’s how we’ve operated since 2004, and it’s a big reason Mission Hills homeowners who are often home alone, or who have young kids, call us back for the next phase of their remodel.
Isaac Pruett, who leads our team, insists on one rule above all: the written price is the price. No verbal estimate that grows at the end. No change order surprise on week six. If we find non-permitted work during plan check, we tell you before you spend another dollar, and we adjust the scope in writing so you know exactly what the County will inspect and what it will cost.
Styles & brands we work with







Hire a General Contractor in Mission Hills
Hire a General Contractor when the job touches structure, means cutting into load-bearing walls, or requires a permit from the County of Los Angeles. In Mission Hills, that’s most remodels, because so many homes carry additions that were never legal. A kitchen remodel here often starts not with demo, but with a records pull that shows the assessor’s square footage doesn’t match your floor plan. A typical Mission Hills kitchen remodel runs $14,000 – $45,000. A home addition lands between $45,000 and $130,000, and a garage conversion ranges $30,000 – $80,000, with a meaningful slice of that going to structural retrofit that the County mandates.
Structural Verification Before Framing
Before we frame anything, we confirm what’s legal and what’s not. Mission Hills homes built in the 1950s frequently have enclosed patios, converted garages, and bonus rooms that never passed plan check. If the County flags it, the retrofit goes into your written quote as a line item, not as a surprise after walls are open.
The Threshold Standard on Every Site
When our crew arrives at your Mission Hills home, you’ll already know who’s coming. We send the technician’s name and photo ahead of the visit. They arrive in a clean marked uniform and show a photo ID badge at the door before stepping inside. No mystery subcontractors, no day-laborer roulette.
General Contractor Services in Mission Hills
General Contractor Services in Mission Hills span kitchens, bathrooms, whole-home remodels, room additions, and ADUs, but the County’s unincorporated status changes how every one of those gets permitted and inspected. We manage the full sequence: as-built verification, structural engineering for wind-load and shear requirements, plan submission to County plan check, and the inspections that follow. A Mission Hills bathroom remodel runs $9,000 – $28,000. A walk-in shower installation runs $4,500 – $12,000. A tub-to-shower conversion is $3,500 – $10,000. Those ranges assume the home’s bones don’t need major structural work. When they do, we tell you in the written price before any work starts.
Permit and Inspection Management
We pull permits and stand with the County inspector during rough-in and final. Mission Hills jobs get flagged more often than neighboring city jobs because the assessor’s records and the actual structure rarely match. We handle the plan check corrections so you’re not on the phone with a County planner at 2 p.m. on a Tuesday.

GC Oversight on Subcontracted Work
We act as the single point of accountability for every trade on your project: framing, electric, plumbing, tile, roofing. When a Mission Hills job needs a third-party wind-resistance inspection on a new roof, we schedule it and make sure the certificate lands in your file, not in a stack somewhere.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Mission Hills
Mission Hills roofing and window replacements face real wind. Santa Ana gusts off the mountains have torn asphalt shingles off more than a few Sepulveda Corridor homes. That’s why we stock and install products built for that exposure. GAF and CertainTeed shingles hold up to the County’s 85 mph design wind speed, and PGT impact windows carry the rating inspectors look for when a Mission Hills home sits in an Exposure C zone. We keep common replacement parts and flashing materials staged for Mission Hills jobs so a repair or installation doesn’t stall waiting on a distributor truck from out of county. When you choose Boral trim or CGI window frames, you’re choosing products with the documentation the County accepts.
See the difference
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AfterCommon General Contractor Problems We See in Mission Hills Homes
- Unpermitted garage conversions that complicate everything. A converted garage off Haskell Avenue or Woodley Avenue may not exist on the assessor’s roll. When you try to remodel the adjacent kitchen, the County can require structural retrofit of the illegal space before it will sign off on anything. We start every Mission Hills job by pulling records so there are no mid-project surprises.
- Shear walls nailed to the wrong pattern. Mission Hills wood-frame homes from the 1940s and 1950s often need tighter edge nailing, typically 4 inches on center, to meet current shear-wall requirements. A cheap quote skips this because the inspector only catches it after drywall is up. We spec it from day one.
- Foundation settlement on expansive clay. The clay under Mission Hills swells when wet and shrinks when dry, which slowly pushes shallow 1950s footings out of level. We check for slab cracks and door-frame shifts before quoting any addition or kitchen remodel, because a new kitchen on a settling slab wastes every dollar spent.
- Roof replacement without wind-resistance documentation. After a Santa Ana event, Mission Hills homeowners file insurance claims only to discover they have no third-party inspection certificate proving the roof met wind-resistance code. We schedule that inspection and put the documentation in your hands before final payment.
Pricing for General Contractor in Mission Hills, CA
Here are the numbers we actually quote in Mission Hills, so you can self-qualify before you call. A roof replacement runs $8,000 – $20,000 depending on pitch, material, and whether the old roof had plywood sheathing or skip-sheathing. A home addition runs $45,000 – $130,000, and the low end assumes no major foundation repair and a straightforward County plan check. A garage conversion runs $30,000 – $80,000. The biggest cost driver in Mission Hills is structural retrofit: hold-downs, shear walls, Simpson Strong-Tie connectors, and sometimes new footings. Every quote we give is in writing, line by line, before any work starts. Call (831) 290-6866 to schedule your free estimate.
| Project Type | Mission Hills Price Range |
|---|---|
| Roof Replacement | $8,000 – $20,000 |
| Home Addition | $45,000 – $130,000 |
| Garage Conversion | $30,000 – $80,000 |
We Also Serve Cities Near Mission Hills
We run crews into Mission Hills weekly, and we cover the surrounding communities the same way: with written pricing and The Threshold Standard on every job. That includes Reseda, Winnetka, Sherman Oaks, and Tarzana. If you’re planning work in any of these areas, the same general contractor team serves your neighborhood with the same structural-first approach we bring to Mission Hills.
Serving Mission Hills, CA - Our Local Coverage Area
We’re based in the Mission 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 Mission Hills
A new roof in Mission Hills must meet the County’s design wind speed of 85 mph under Exposure C, which is the 2022 California Building Code requirement for unincorporated LA County. That means architectural shingles with a high wind rating rather than basic three-tab, and it often means upgraded underlayment fastening. We spec GAF or CertainTeed products that carry documentation the County accepts. Call (831) 290-6866 for an exact quote on your roofline.
Yes, in almost every case. If county assessor records don’t match the actual structure, plan check will flag the illegal square footage, and the County can require hold-downs, shear walls, and Simpson Strong-Tie connectors before any interior remodel gets signed off. We pull records before quoting so you know what you’re facing. Call (831) 290-6866 and we’ll check your address before you spend anything.
A compliant Mission Hills quote includes structural engineering for the 85 mph Exposure C requirement, the specific Simpson Strong-Tie connectors and hold-downs, 4-inch-on-center edge nailing on shear walls, and a line item for the County’s plan check and inspection fees. A cheap quote assumes none of that, and the missing work shows up as a change order after walls are open. Our written price includes the full scope before any work starts. Call (831) 290-6866 for a free estimate.
Documented wind-load compliance, meaning the third-party inspection certificate and the County’s signed-off permit, gives your insurer evidence that the work met current code. Some carriers reduce premiums for retrofit hardening, especially where Santa Ana winds are a known exposure. Without that paper trail, an insurance claim after wind damage gets harder to substantiate. We put the documentation in your hands at final walkthrough.
Technically yes, but it’s the most expensive way to do it. Adding wind-load upgrades after plan check approval means an amended plan, new engineering review, and sometimes a re-inspection of work already completed. It’s cheaper and faster to include the wind-load retrofit in the original scope, which is exactly how we write Mission Hills quotes. Call (831) 290-6866 before you submit for permit to avoid double plan check fees.
Written by Isaac Pruett, Owner at Mason Remodeling Co Woodland Hills, serving Mission Hills since 2004.










