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Licensed & Insured. CSLB #1092889 Serving the San Fernando Valley & the Westside Service Areas FAQ Client Support (818) 934-0075
MAMOS Construction & Design

Mamos Construction & Design

Mamos Construction & DesignROOFING
(818) 934-0075
Roofing  ›  San Fernando Valley  ›  West Hills

West Hills was built in the fifties and sixties. The hills behind it burned in 2025.

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Joseph will call you at the number you gave within 15 minutes: 8am to 5pm Monday to Thursday, 8am to 2pm Friday. Outside those hours you are first on the list the next morning. Urgent right now? Call (818) 934-0075.

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How old your roof really is, from permit records
How many years it has left, checked from the roof itself
Whether your address is in a fire hazard zone
Dated photos and notes, in writing for your insurance agent

If the roof still has good years left, the report tells you.

Roof replacement and free written roof inspections across West Hills. Six in ten homes in ZIP code 91307 went up between 1950 and 1969, according to the Census Bureau. In January 2025 the Kenneth Fire started off Victory Boulevard and burned into the open space on the neighborhood’s western edge.

EMBERS 010203

Deck, underlayment, then shingles or tile. The underlayment keeps the water out, and you can only check it from up on the roof.

CSLB 1092889Check it yourself at the state license board
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Free, no obligationYou keep the report either way
Dated photosTaken on your roof, in every report

What we look for on a West Hills roof

The house is older than the code, and the code depends on where the house sits.

Original decking under newer shingles

A house from the fifties or sixties has usually been re-roofed at least once. What matters is underneath: the sheathing, the flashing at walls and chimneys, and whether an old layer was left in place.

The hillside streets are in the fire zone

LAFD lists West Hills among the communities with land in the Very High Fire Hazard Severity Zone. Inside it, a new roof has to be Class A, and wood shake cannot go back on.

Ember entry points

Santa Ana winds carried the Kenneth Fire from the valley floor into the hills within hours. The report notes open vents, gaps at the eaves and debris in the gutters, the places embers find first.

Built-in gutter clogged with leaves
Built-in gutter clogged with leaves. Every report has dated photos like this one, taken up on the roof.

Before the rain in West Hills

Mid-century roofs in the flats and a recent burn scar in the hills to the west.

Flashing from another era

On homes from the fifties and sixties, the metal at chimneys, walls and vents is often older than the shingles around it. That is where a long storm gets in first.

Low-slope additions

Patio covers and family room additions on mid-century houses often run at a shallow pitch. Water sits longer there, so we check them along with the main roof.

Downhill from the Kenneth burn

Slopes that burned in January 2025 shed water and debris faster than they used to. If your street sits below the open space, sign up for city and county storm alerts this winter.

Before the first big storm: book the free roof check, or read our winter storm roof guide.

From our roofs

Recent MAMOS roofing work: shingle re-roofs, flat ADU roofs and tile.

Shingle re-roof in progress in Encino, new ridge vents and flashing going in
Re-roof in Encino: new shingles, ridge vents and pipe flashings going on.
Two roofers in harnesses laying architectural shingles over new underlayment
Shingles going down over new underlayment, crew tied off.
Crew rolling out Polyglass underlayment on a new ADU flat roof
ADU flat roof: underlayment rolled out before the cap sheet.
Finished white cap sheet on an ADU flat roof with every vent flashed and sealed
The same ADU roof finished: white cap sheet, every vent flashed and sealed.
Tarzana re-roof finished: new gray architectural shingles, ridge caps and a flashed skylight
Re-roof in Tarzana, finished: new shingles, ridge caps, skylight flashed.
Clay barrel tile roof with a new gutter line along the eave
Clay barrel tile with a new gutter line along the eave.

What the city requires on a West Hills roof

West Hills is part of the City of Los Angeles, so city building rules and the city fire department apply.

PERMIT
LADBS

The Los Angeles Department of Building and Safety issues the re-roof permit. Replace over half the roof and the cool roof rule applies, with CRRC rated products.

WOOD
10 percent

Once repairs pass 10 percent of the roof inside a year, the entire roof must meet current code, and wood shake or shingle is not allowed back.

CLEARANCE
200 feet

LAFD can require brush clearance up to 200 feet from structures in the Very High zone.

We get on the roof, photograph what we find and write it up.

Get my free report

A notice from your carrier? Start with the roof’s age.

State Farm’s 2024 non-renewal list, as published by ABC7, included 166 policies in ZIP code 91304 and 81 in 91307. Carriers often judge a roof from aerial imagery. A dated written report with photographs of each slope gives your agent something specific to send back.

1,052

acres burned by the Kenneth Fire in January 2025, from a start on Victory Boulevard in West Hills across the county line into Ventura County, according to CAL FIRE.

Old roof stripped to the wood deck on a Tarzana re-roof
Re-roof in Tarzana: the old roof stripped to the wood deck before the new underlayment.

Roof questions in West Hills

Repair or replace?

Usually the underlayment decides it, and you have to get on the roof to check that. The report gives you the answer, with photos.

What does a new roof change for my insurer?

Most letters name roof age. The permit and completion papers show the new roof’s date; what the carrier does with them is its decision.

My house is in the flats. Do the fire zone rules apply to me?

Not necessarily. The Very High zone in West Hills follows the hillside, and the line runs parcel by parcel. State maps issued in 2025 redrew parts of it, so the report states your address’s status in writing.

Get the age, the zone and the condition on one page.

A free written report with roof age, remaining life and fire zone status. If a repair buys you real years, the report says so.

“Joseph was very clear about the process, the costs, the recommendations. … His team was very professional, on time, fast, and respectful, but most importantly, they were good!”

DAVID H.  ·  YELP
ROOF & INSURANCE REPORTREQUEST FORM

Request your report

Roof age, fire zone status and the repairs that matter most, in writing. We call back within 15 minutes: 8am to 5pm Monday to Thursday, 8am to 2pm Friday.

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Mamos Construction & Design
West Hills  ·  Woodland Hills  ·  Canoga Park  ·  Chatsworth
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