Best Licensed Roofers in Petaluma, CA
16 roofing companies registered in Petaluma hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by years licensed.
- 90 active C-39 roofing licenses in Sonoma County; 16 registered in Petaluma
- California requires workers' compensation cover for C-39 licensees: 14 of Petaluma's 16 licenses (87.5%) carry a current policy with CSLB
- Median time licensed in Petaluma: 15 years
- Longest Petaluma licensure: since 1963
- 10 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1963
- Phone
- (707) 579-3511
- Verified
- August 17, 2026
- Licensed since
- 1963
- Phone
- (707) 763-1535
- Verified
- August 17, 2026
- Licensed since
- 1982
- Phone
- (707) 763-5475
- Verified
- August 17, 2026
- Licensed since
- 1986
- Phone
- (707) 795-6866
- Verified
- August 17, 2026
- Licensed since
- 1986
- Phone
- (510) 719-0317
- Verified
- August 17, 2026
- Licensed since
- 1990
- Phone
- (707) 364-5915
- Verified
- August 17, 2026
- Licensed since
- 2002
- Phone
- (415) 456-3482
- Verified
- August 17, 2026
- Licensed since
- 2004
- Phone
- (415) 786-7308
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Ernest Ongaro & Sons Inc. DBA Ongaro & Sons | #215233 | On file | 1963 |
| Henris Roofing Co | #220964 | On file | 1963 |
| Wedge Roofing Inc. | #416737 | Exempt or none on file | 1982 |
| Palmer Roofing Service Inc. | #499113 | On file | 1986 |
| Westech Roofing | #500843 | On file | 1986 |
| Sun America Solar & Construction Co | #597784 | On file | 1990 |
Sonoma County roofing licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 90 active C-39 roofing licenses in Sonoma County, 16 of them registered in Petaluma. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Petaluma license has been held 15 years, and the longest-standing one dates to 1963. California law requires workers' compensation cover for C-39 licensees, so it is a legal baseline rather than a way to tell two contractors apart: 14 of Petaluma's 16 licenses (87.5%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 89 of the county's 90 licenses carry the same $25,000 bond California sets by statute. 10 county licenses reach their expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.
Roofers in Petaluma: common questions
How many licensed roofers are there in Petaluma?
16 active C-39 roofing licenses are registered in Petaluma, out of 90 across Sonoma County. 16 Petaluma-registered companies passed our license verification, and the 8 on this page are the top-ranked of those. Only licenses CSLB shows as CLEAR and unexpired are listed.
Does California license roofers?
Yes. California licenses contractors by classification, and C-39 is the CSLB classification that authorises this work, unlike Texas, which licenses no roofing contractors at all. 16 active C-39 roofing licenses are registered in Petaluma and 90 across Sonoma County, the longest-standing issued in 1963. Only CLEAR, unexpired licenses appear here.
How do I check a roofer's license in California?
Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which California requires of C-39 licensees and 14 of Petaluma's 16 currently carry. 10 Sonoma County licenses expire within 90 days.