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Licensed Limited Specialty Contractors in Windsor, California

Updated November 1, 2026 from CSLB's public license file · C-61 Limited Specialty

  • 23licensed limited specialty contractors
  • 22active (Clear)
  • 4.3%with a suspension
  • 30.4%workers' comp exempt
  • 12.6 yrsmedian time licensed
  • 60.9%corp / LLC / partnership (39.1% sole owner)
  • 2new in the last 12 months
  • —change tracking began November 1, 2026

Windsor is home to 23 limited specialty contractors in CSLB's license file, ranking #5 of 6 Sonoma County cities for this trade. 95.7% are Clear.

30.4% report a workers' comp exemption, 5.8 points lower than the statewide figure for limited specialty contractors (36.2%), so many of these businesses say they have no employees. The share with a suspension (4.3%) is close to the Sonoma County rate for the same license (4%).

2 of these licenses are less than a year old, while 65.2% have been held for 10 years or more. The median is 12.6 years.

C-61 licenses are always paired with a D-subcategory that names the specific trade, so check the "D" code on each profile. See the C-61 Limited Specialty guide for what the license covers.

How to check a limited specialty contractor's license in Windsor

  1. Open the limited specialty contractor's profile from the table below (or search Windsor listings by name). Check that C-61 appears among its classifications and that the primary status reads Clear. What C-61 covers.
  2. Before any money changes hands, verify the license on CSLB's own lookup. Our data comes from CSLB's weekly file, so a very recent change may not show here yet.
  3. Ask for the pocket license and a photo ID and match the name to your contract. Work of $1,000 or more needs a license (the $1,000 rule), and a down payment can't exceed $1,000 or 10% (down payment rules).

All 23 limited specialty contractors in Windsor

Windsor limited specialty contractors sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.

Licensed limited specialty contractors in Windsor
Business nameLicense #StatusYearsWorkers' compBond
Precision Crane Service INC 440078 Clear 43 Insured On file
Elliff Budd 577425 Clear 37 Exempt On file
Waterworks Industries Incorporated 678182 Clear 33 Insured On file
Image Tree Service INC 719689 Clear 30 Insured On file
Tri - County Garage Door INC 732661 Clear 29 Exempt On file
Norcal Maintenance INC 772419 Clear 26 Insured On file
Cleanroom Management CO 825594 Clear 23 Insured On file
Winkler Aquascapes 870177 Clear 20 Insured On file
Franco's Garage Doors 886196 Clear 20 Insured On file
Specialist Pool Service the 942179 Clear 16 Exempt On file
Dedrick Enterprises 991829 Clear 12 Insured On file
America's Pool Service Company 996059 Clear 12 Insured On file
Alfaro Construction 1001985 Clear 11 Insured On file
Napa Valley Crane Service 1013163 Clear 10 Insured On file
Windsor Waterproofing INC 1021103 Clear 9 Insured On file
Good Nature Pool Service 1036917 Clear 8 Exempt On file
Galvan Roofing & Gutters 1040318 Clear 8 Insured On file
Clark John A 1063307 Clear 6 Exempt On file
Rupert Construction Company 1074809 Clear 5 Exempt On file
Wildfire Tree Services 1088747 Clear 4 Insured On file
Baldry Brothers Drilling 1146083 Clear 1 Insured On file
Lucky Garage Door 1148429 Clear <1 Exempt On file
Nava Spa Repair LLC 969534 Susp: liability insurance 14 Insured On file

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

Frequently asked questions

How many licensed limited specialty contractors are in Windsor?

CSLB's current public file lists 23 limited specialty contractors with a Windsor mailing address. 22 have a Clear status, and 95.7% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does a limited specialty contractor need in California?

C-61 licenses are always paired with a D-subcategory that names the specific trade, so check the "D" code on each profile. Any job of $1,000 or more in labor and materials needs a licensed contractor. Read our guide to the $1,000 rule.

How do I check a limited specialty contractor's workers' comp?

Each profile shows the workers' comp type, insurer and policy dates from CSLB's file. Among Windsor limited specialty contractors, 30.4% are exempt (no employees), 69.6% insured and 0% without current coverage. Verify a policy with CSLB's insurer search (step by step).

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Guides