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How do roofers in California get more customers from Google and AI search?
Short answer: Roofers in California get found online with a website that shows their license number, names the towns they serve such as Los Angeles, San Diego and San Jose, and collects real local reviews. Licensing runs through the Contractors State License Board (CSLB). The state had 2,795 businesses with staff in this Census category in 2022.
- Licensing body: Contractors State License Board (CSLB).
- Contractor ads in any form, including online, flyers and trucks, must show the state license number, per CSLB guidance.
- 2,795 businesses with staff in 2022, 1st of 50 states; 80% have fewer than 10 staff.
- Largest cities: Los Angeles, San Diego and San Jose.
- Common words in local searches: “repair”, “best” and “reviews”.
- Coldest month December (about 44°F), warmest July (about 76°F), statewide average.
Do roofers need a license in California?
In California, the licensing body for this work is Contractors State License Board (CSLB).
License or registration types named by the state: C-39 Roofing Contractor.
- Roofing has its own license, the C-39.
- The same $1,000 limit, $25,000 bond and four-year experience rules apply.
Homeowners can check a license on the state lookup page. Put your number where they will look for it.
Contractor registration in California sits with Contractors State License Board (CSLB). Any project of $1,000 or more in labor and materials needs a CSLB license. Any project needing a permit or workers needs one at any price. Dividing a job to stay under $1,000 is not allowed.
License numbers in ads and on websites
Contractor ads in any form, including online, flyers and trucks, must show the state license number, per CSLB guidance. Unlicensed operators must state they are not state licensed and can only do work under $1,000.
What do homeowners in California’s biggest cities search for?
Google autocomplete for roofer searches in each city (job-seeker searches removed):
Los Angeles
- best roofer los angeles
- commercial roofer los angeles
- kayhans roofing los angeles reviews
- los angeles roofing & commercial roof repair
- los angeles roofing company
- los angeles roofing contractor
- los angeles roofing materials
- los angeles roofing permit
San Diego
- atlas roofing san diego
- roof san diego padres
- roofers san diego ca
- roofing companies san diego
- roofing san diego ca
- roofing san diego group
- san antonio roofers reviews
- san diego roofing companies
San Jose
- best roofer san jose
- legacy roofing san jose
- roof repair san jose
- roofer san jose ca
- roofing companies san jose
- roofing san jose ca
- san jose roofing co inc
- san jose roofing companies
San Francisco
- acme roofing san francisco
- apollo roofing san francisco
- lawson roofing san francisco
- mr roofer san francisco
- roof repair san francisco
- roof repair san francisco ca
- roofer south san francisco
- roofers san francisco ca
Fresno
- best roofers fresno
- fresno roofing co reviews
- fresno roofing companies
- fresno roofing company
- fresno roofing company llc
- fresno roofing contractors
- fresno roofing repair
- roofer fresno ca
Across these cities, the words that come up most are “repair”, “best”, “reviews” and “commercial”.
Source: Google autocomplete suggestions, checked November 9, 2026. Suggestions change over time.
What does a year of roofer work look like in California?
Publish each seasonal page four to six weeks ahead.
| Month | Avg temp | Jobs to plan for (our suggestion) |
|---|---|---|
| January | 45°F | inspections and replacement quotes |
| February | 47°F | inspections and replacement quotes |
| March | 51°F | inspections and replacement quotes |
| April | 55°F | full replacements, gutters |
| May | 62°F | full replacements, gutters |
| June | 70°F | full replacements, gutters |
| July | 76°F | storm and hail repairs, replacements |
| August | 76°F | storm and hail repairs, replacements |
| September | 71°F | full replacements, gutters |
| October | 61°F | full replacements, gutters |
| November | 51°F | inspections and replacement quotes |
| December | 44°F | inspections and replacement quotes |
Temperatures: NOAA NCEI nClimDiv statewide data. Job column: our planning suggestion, not survey data.
How many roofing contractors compete in California’s main cities?
| City | County | Businesses with staff | Residents per business |
|---|---|---|---|
| Los Angeles | Los Angeles County | 468 | 20,648 |
| San Diego | San Diego County | 248 | 13,185 |
| San Jose | Santa Clara County | 136 | 13,806 |
| San Francisco | San Francisco County | 49 | 16,510 |
| Fresno | Fresno County | 64 | 15,893 |
Competition is tightest around San Diego (San Diego County), with one business for every 13,185 residents, and loosest around Los Angeles, at one per 20,648.
Source: US Census Bureau, County Business Patterns 2022 and County Population Estimates 2023. Counts businesses with paid employees only.
How many roofing contractors are in California?
The Census Bureau counted 2,795 businesses with employees in California in 2022, in the category “Roofing contractors”. That ranks California 1st of 50 states, one of the largest markets in the country, and 11% of the US total. 80% of them have fewer than 10 staff, and 249 have 20 or more.
Together they employ 24,523 people, with an average yearly payroll of $551,838 per business. The three busiest counties hold 34% of them, so the work is spread across the state.
With 38,965,193 residents (Census, July 2023), that is one business for every 13,941 people, against 13,628 nationally: close to the US average.
California next to its neighbors
| State | Businesses | Residents per business | Under 10 staff |
|---|---|---|---|
| California | 2,795 | 13,941 | 80% |
| Arizona | 495 | 15,013 | 73% |
| Nevada | 112 | 28,519 | 62% |
| Oregon | 515 | 8,220 | 75% |
Counties with the most roofing contractors
| County | Businesses | Residents per business |
|---|---|---|
| Los Angeles County | 468 | 20,648 |
| San Diego County | 248 | 13,185 |
| Orange County | 238 | 13,175 |
| Riverside County | 168 | 14,836 |
| San Bernardino County | 151 | 14,540 |
| Sacramento County | 138 | 11,480 |
| Santa Clara County | 136 | 13,806 |
| Alameda County | 131 | 12,383 |
| Ventura County | 85 | 9,760 |
| Contra Costa County | 82 | 14,086 |
50 of California’s counties have at least one. Source: US Census Bureau, County Business Patterns 2022.
How big are they?
Businesses by number of employees, 2022: 1,685 with 1-4 staff, 560 with 5-9 staff, 299 with 10-19 staff, 174 with 20-49 staff, 75 with 50+ staff.
Where California is growing
New homes and new owners bring new work. California's population changed -1.4% from July 2020 to July 2023. The fastest-growing counties with 50,000 or more people:
- San Benito County: 68,175 people, +5.6% since 2020, 11 roofing contractors
- Yuba County: 85,722 people, +4.6% since 2020, 5 roofing contractors
- Placer County: 423,561 people, +4.3% since 2020, 55 roofing contractors
- Madera County: 162,858 people, +4.2% since 2020, 12 roofing contractors
- Merced County: 291,920 people, +3.6% since 2020, 7 roofing contractors
Source: US Census Bureau, County Population Estimates, Vintage 2023.
Which code applies in California?
California uses the 2024 edition of the International Residential Code (IRC) (California Residential Code is based on the 2024 IRC, effective 2026-01-01). Homeowners rarely ask about code editions, but inspectors do, and a line on your service pages saying your work meets the current 2024 code answers the question before it comes up.
What should a California roofer website show?
- Your license number in the footer of every page. California requires it in advertising for at least some trades.
- A service area list that names real counties and towns, for example Los Angeles County, San Diego County and Orange County.
- Seasonal pages published before March, so they are found when demand starts.
- Real reviews from local jobs, with the town named, and photos of your own work.
California questions
Who licenses roofers in California?
Contractors State License Board (CSLB). Roofing has its own license, the C-39. The same $1,000 limit, $25,000 bond and four-year experience rules apply.
How many roofing contractors are there in California?
The US Census Bureau counted 2,795 businesses with employees in California in 2022 in the category Roofing contractors, and 80% of them have fewer than 10 staff.
Which county in California has the most roofing contractors?
Los Angeles County, with 468 businesses with employees in 2022 (Census County Business Patterns).
Do I need my license number on my website in California?
Contractor ads in any form, including online, flyers and trucks, must show the state license number, per CSLB guidance. Unlicensed operators must state they are not state licensed and can only do work under $1,000.
Which edition of the International Residential Code (IRC) does California use?
The 2024 edition. California Residential Code is based on the 2024 IRC, effective 2026-01-01.
What do people in Los Angeles search for when they need a roofer?
Google autocomplete for Los Angeles shows searches such as “best roofer los angeles”, “commercial roofer los angeles”, “kayhans roofing los angeles reviews” and “los angeles roofing & commercial roof repair”.
Sources
- US Census Bureau, County Business Patterns 2022 (state and county files)
- US Census Bureau, City, Town and County Population Estimates, Vintage 2023
- NOAA NCEI, nClimDiv statewide temperature and degree days, 1991 to 2020
- Google autocomplete suggestions for the cities named, checked November 2026
- https://www.cslb.ca.gov/About_Us/Library/Licensing_Classifications/
- https://www.cslb.ca.gov/contractors/applicants/contractors_license/exam_application/before_applying_for_license.aspx
- https://www2.cslb.ca.gov/Resources/GuidesAndPublications/WYSKbro_ENG0525_ADA.pdf
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