Roofing contractor in Simi Valley, CA
Simi Valley is just over the Santa Susana Pass from Chatsworth, west of our Northridge office. We replace and repair roofs across ZIP codes 93063 and 93065, with deck, framing and fascia repairs under the same contract.
- Area
- Simi Valley, CA 93063 and 93065
- Building department
- City of Simi Valley Department of Environmental Services, Building and Safety Division
- Contractor
- LA General Builders, CSLB Lic #1044686
Roof replacement and repair in Simi Valley
Simi Valley's housing element shows that 28.6 percent of the city's housing was built in the 1960s and 21.2 percent in the 1980s, and that single-family detached homes are 72.4 percent of all units. The first tract developments were built in 1957 and 1958.
A 1960s tract house has typically had two or three roofs by now. On the 1980s homes, the first tile roofs are reaching the age where the underlayment beneath the tile gives out.
Roofing permits in Simi Valley
Simi Valley is its own city in Ventura County. Its Building and Safety Division takes residential re-roof permit applications online and states a review time of two to three days. We submit the application and meet the inspector.
Fire zones and roof rules in Simi Valley
- 17,630 acresof Simi Valley are in the Very High zone in the state's 2025 figures
- About 7,000homes were in the Easy Fire evacuation zones in October 2019
- 2 to 3 daysis the city's stated review time for an online re-roof permit application
The State Fire Marshal's 2025 figures put 17,630 acres of Simi Valley in the Very High Fire Hazard Severity Zone, 1,548 acres in High and 1,139 acres in Moderate. CAL FIRE records that the Easy Fire started on October 30, 2019 at West Easy Street and West Los Angeles Avenue in Simi Valley, and KCLU reported about 7,000 homes in its evacuation zones.
When new roof tile is being installed, Simi Valley's permit instructions ask for the product's evaluation report to be attached to the re-roof application. We include it.
Check an address on the state fire zone map Class A fire-rated roofing
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Tile roofs: the layer beneath wears out first
The tile sheds most of the rain, but the underlayment beneath it keeps the house dry. We lift the tile, renew that layer and relay the same tile.
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How embers reach a roof
Wind-blown embers start most roof fires. They land on the roof surface (1), blow in through vents (2) and collect in gutters (3). A Class A roof and ember-resistant vents deal with all three.
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What a re-roof in Simi Valley replaces
Finish roofing (1), underlayment and flashing (2), and any rotted deck (3) or damaged rafters (4). The wood repairs are done by the same crew, under the same contract.
Roofing services in Simi Valley
Every service is available in Simi Valley, with deck, framing and fascia repairs under the same contract.
Roof replacement
Full tear-off down to the deck and a new roof system on top.
Roof repair
Missing shingles, slipped tiles, cracked flashing and worn sealant.
Roof leak repair
We trace the leak to where water gets in and fix it there.
New roof installation
Roofs for new homes, additions and ADUs.
Roof inspection
A written report with photos before you buy, sell or re-roof.
Asphalt shingle roofing
The most common roof on Valley homes, installed and repaired.
Tile roofing
Clay and concrete tile, set new or repaired tile by tile.
Tile underlayment replacement
We lift the tile, replace the worn layer beneath and relay it.
Metal roofing
Standing seam metal panels for homes and additions.
Flat roofing
Low-slope roofs on homes, garages and apartment buildings.
Fire-rated roofing
Class A roof systems for homes in and near fire zones.
Multifamily and commercial
Apartment buildings and commercial properties.
Simi Valley roofing questions
How long does a re-roof permit take in Simi Valley?
The city's Building and Safety Division states a review time of two to three days for residential re-roof permit applications submitted online. We submit the application for you.
Is my Simi Valley home in a fire hazard zone?
It may be. The State Fire Marshal's 2025 figures put 17,630 acres of the city in the Very High zone, with more in the High and Moderate zones. We check your address on the state map and confirm with the city what the roof has to meet.
My tile roof is original to a 1980s house. What does it need?
Most likely new underlayment. The tile itself usually outlasts the layer beneath it. We lift the tile, replace the underlayment and flashing, and relay the same tile, replacing broken pieces.
Roofers near Simi Valley
Moorpark
Permits through Moorpark Building and Safety.
Thousand Oaks
Permits through Thousand Oaks Building Division.
Chatsworth
Permits through LADBS.
Sources for the local facts on this page
- City of Simi Valley: Building and Safety Division
- City of Simi Valley: online permit submittal instructions
- City of Simi Valley: 2021-2029 Housing Element
- State Fire Marshal: 2025 local responsibility area acreage, Ventura County cities
- CAL FIRE: Easy Fire
- KCLU: Easy Fire evacuations
Local facts last checked on October 2, 2026. Rules change, so we confirm the current requirement with the building department before every job.
Get a price for your roof
Tell us about the roof and we will call you to set up a visit. Or call now and talk to an estimator.
818-741-5451See a price range in about a minute
LA General Builders, 8728 Zelzah Ave, Northridge, CA 91325
CSLB Lic #1044686