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Plumbing contractors in Sonoma County

Workers' comp renewals, lapses, and carriers for plumbing contractors licensed in Sonoma County, California. Aggregate figures from CSLB and state records, as of 2026-09-02.

380
Active licenses
214
With workers' comp
56% of active
58
Renewing in 90 days
46 within 60
5
Lapsed or suspended
165 exempt

Workers' comp renewals by month, Sonoma County

Policies on file with the CSLB expiring in each of the next 12 months.

9
Sep
36
Oct
13
Nov
7
Dec
24
Jan
16
Feb
18
Mar
21
Apr
19
May
16
Jun
16
Jul
11
Aug
1
Sep

Top carriers

  1. State Compensation Insurance Fund30
  2. Technology Insurance Company Inc22
  3. Hartford Casualty Insurance Company12
  4. Employers Preferred Insurance Company12
  5. Security National Insurance Company11
  6. Benchmark Insurance Company10
  7. Wesco Insurance Company9
  8. Pie Insurance Company (The)8

Top cities

  1. Santa Rosa161
  2. Petaluma52
  3. Rohnert Park30
  4. Sebastopol28
  5. Windsor25
  6. Sonoma24
  7. Cotati14
  8. Healdsburg10
  9. Cloverdale7
  10. Forestville6

Trades

  1. Plumbing380
  2. General Building62
  3. Specialty43
  4. HVAC40
  5. Electrical35
  6. General Engineering31
  7. Fire Protection26
  8. Sheet Metal9

Size and risk

large27
mid46
small307
high risk1
medium risk4
low risk375

Sources: CSLB license and workers' compensation records, CA Secretary of State, OSHA, FMCSA. Aggregates only; no individual contractor data appears on this page. Size and risk tiers are Birdray estimates.

Frequently asked

How many plumbing contractors are licensed in Sonoma County?
380 hold an active CSLB license classed as Plumbing in Sonoma County as of 2026-09-02.
How many carry workers' compensation insurance?
214 have a workers' comp policy on file with the CSLB; 165 filed an exemption and 5 are lapsed or suspended.
When do their policies renew?
46 renew within 60 days and 58 within 90 days. The month-by-month curve on this page shows the next 12 months.
Which carriers write the most plumbing contractors here?
STATE COMPENSATION INSURANCE FUND (30), TECHNOLOGY INSURANCE COMPANY INC (22), HARTFORD CASUALTY INSURANCE COMPANY (12)
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Plumbing contractors in Sonoma County: workers' comp renewals & carriers | Birdray