Licensed Contractors in Janesville, California

Janesville has 23 licensed contractors registered with the California Contractors State License Board across 10 trade classifications. The most common specialties are Concrete Contractor (2), Sanitation System Contractor (2), Warm-Air Heating, Ventilating and Air-Conditioning (HVAC) Contractor (1). 15 contractors hold general contractor licenses (Class A or B).

All license data is sourced from the California Contractors State License Board (CSLB). Last data update: April 05, 2026.

Contractors by Trade

Building (16)
Plumbing (4)
Earthwork (2)
HVAC (1)
Landscaping (1)
Fire (1)
Colbert And Son Active
License #433374 B Janesville, CA Est. 1983
Robert Freschl Active
License #672721 C-27 Janesville, CA Est. 1993
Lewis Construction Active
License #798616 B Janesville, CA Est. 2001
Schortz Enterprise Active
License #849907 B, C-47 Janesville, CA Est. 2004
Harlans Bobcat/B-Hoe Service Active
License #852760 C-42 Janesville, CA Est. 2005
Kellogg Construction Active
License #859661 B Janesville, CA Est. 2005
Your H20 Pro Active
License #867400 C-57 Janesville, CA Est. 2005
Jensen Drywall Works Active
License #868957 C-9 Janesville, CA Est. 2005
Van Zee Plumbing Active
License #876245 C-16, C-36 Janesville, CA Est. 2006
Jmh Construction Services Inc Active
License #917787 B, C-42 Janesville, CA Est. 2008
Residential Maintenance Services Active
License #921915 B Janesville, CA Est. 2008
Krause Construction Active
License #922895 B Janesville, CA Est. 2008
All Season Heating & Air Active
License #1030669 C-20 Janesville, CA Est. 2017
Elite Construction Active
License #1069813 B Janesville, CA Est. 2020
Lyubik'S Construction Inc Active
License #1101650 B Janesville, CA Est. 2023
Sun Shine Construction Active
License #1109950 B Janesville, CA Est. 2023
Thompson Peak Construction Active
License #1112956 B Janesville, CA Est. 2023
Wynn Concrete Active
License #1128527 C-8 Janesville, CA Est. 2024
Legacy Building And Exteriors Active
License #1133778 B Janesville, CA Est. 2025
Frontier Builders Active
License #1134405 B Janesville, CA Est. 2025
Cornerstone Building Inc Active
License #1136487 B Janesville, CA Est. 2025
Wynn Concrete Llc Active
License #1150203 C-8 Janesville, CA Est. 2026
Faytak Construction Suspended
License #822406 B Janesville, CA Est. 2003

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Licensing Resources

How to verify a contractor license
Deposit and payment rules for California contracts
Home improvement contract requirements

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