How to Read a Roofing Estimate in California
A line-by-line guide to a roofing bid: scope, materials, tear-off, permits, cool roof details, payment schedule and what CSLB says a contract must include.
Roofs in Los Angeles, explained plainly.
Plain, sourced guides to roof types, costs, permits, wildfire rules, insurance, and hiring a licensed roofer in Los Angeles County.
Read the guideSeveral blocks of mid-century single-family homes on a street grid in the San Fernando Valley, Los Angeles. Aerial imagery: USDA NAIP, 2022, public domain.
The guides.
Six topics, each built from official sources such as city building departments, the CSLB, CAL FIRE and the California Department of Insurance.
Guide 01Roof types
Shingle, tile, and other roofs, plus what California's cool roof rules mean for a new roof.
Guide 02Roof costs
What drives the price of a new roof, and how to read a roofing estimate line by line.
Guide 03Hiring a roofer
How to check a contractor's CSLB license, and what California law says about contracts and down payments.
Guide 04Roof permits
When a reroof needs a permit, what inspectors check, and how to look up past permits for a home.
Guide 05Wildfire roofing
Fire hazard severity zones in Los Angeles County, Class A roofs, and the vent and gutter rules that go with them.
Guide 06Roof insurance
How a roof claim works, and how to find coverage if you live in a high fire risk area.
Start with your area.
Roof rules for the whole City of Los Angeles, reroof permit counts since 2021, and local guides to four LA areas and Long Beach.
- Long BeachLong Beach's 100 sq ft roofing exemption, express reroof permits, historic district roof rules, fire map status, housing age and climate zones.
- Northeast LAHighland Park, Mt. Washington, Eagle Rock, Silver Lake and Echo Park: reroof permit counts, 2025 fire zones, pre-1940 houses and HPOZ review.
- San Fernando ValleyReroof permits in the City of LA's San Fernando Valley since 2021, by year and ZIP, plus 2025 fire zones, housing age and climate zones 9 and 16.
- South LASouth LA, Baldwin Hills, Leimert Park and West Adams: reroof permits since 2021, the oldest housing in our guide, climate zone 8 and HPOZ districts.
- WestsideMar Vista, Westchester, Brentwood, Venice and nearby City of LA areas: reroof permits since 2021, Palisades-area fire zones, housing age, zone 6.
Wildfire roofing.
How wildfire rules shape roofs in LA County: the 2025 fire hazard maps, the new WUI code, Class A roofs, ember-resistant vents, and burn-area rebuilds.
Read the guide
I want to.
Replace an old roof
Compare shingle, tile and metal roofs, then learn what moves the price before you collect bids.
Hire a roofer safely
Look up a CSLB license, read the contract line by line, and know California's down payment rules.
Get a reroof permit
Who issues reroof permits in LA County, what inspectors check, and how to find a home's permit history.
Talk to my insurer
How a roof claim works in California, and where to look for coverage in a high fire risk area.
From the guide.
Every page is built from official sources, with the sources listed at the bottom and the date we last checked them.
How we source facts
How to Check a Roofer's CSLB License
Step by step: look up a California roofer on the CSLB site, read the license record, and check the C-39 class, bond and workers' comp.
About this guide.
Plain guides to roofs in Los Angeles County. Each page is built from official sources, such as city building departments, the Contractors State License Board, CAL FIRE, the state building code, and the California Department of Insurance. Sources are listed at the bottom of every page.
LA Roof Guide is an information website only. We are not a contractor, and we do not offer or arrange roofing work. Read more about us.
Local guides
Permit counts, fire zones and housing age differ from place to place. Our Los Angeles area guide covers the rules for the whole City of Los Angeles. These pages cover the local facts:
Altadena and the Eaton fire area are covered in our wildfire roofing guide.
Before anyone works on your roof
In California, work of $1,000 or more, work that needs a permit, or work using hired workers requires a CSLB license. A reroof usually needs a permit. Check any contractor's license at cslb.ca.gov before you sign. Our guide on checking a CSLB license walks through it.
How we work
We use primary sources, cite every rule and number, and leave out anything we cannot verify. We do not publish made-up prices or reviews. See sources and method.
Sources
