Licensed Contractors in Hanover, California
Hanover has 7 licensed contractors registered with the California Contractors State License Board across 15 trade classifications. The most common specialties are Welding Contractor (2), Scaffolding (2), Hazardous Substance Removal Certification (2). 4 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: February 20, 2026.
Contractors by Classification
General Contractors
Specialty Contractors
C-60: Welding Contractor
(2)
D39: Scaffolding
(2)
HAZ: Hazardous Substance Removal Certification
(2)
ASB: Asbestos Certification
(1)
C-2: Insulation and Acoustical Contractor
(1)
C-22: Asbestos Abatement Contractor
(1)
C-29: Masonry Contractor
(1)
C-33: Painting and Decorating Contractor
(1)
C-21: Building Moving/Demolition Contractor
(1)
D30: Pile Driving and Pressure Foundation Jacking
(1)
Keller Drilling Inc
Active
License #419525
A
Hanover, CA
Est. 1982
Keller North America Inc
Active
License #482246
A, D30 +1 more
Hanover, CA
Est. 1985
License #944106
C-60, D39
Hanover, CA
Est. 2010
Maryland Teksystems Inc
Active
License #984590
C-7
Hanover, CA
Est. 2013
License #998235
B, C-20 +1 more
Hanover, CA
Est. 2014
License #1006821
ASB, C-2 +5 more
Hanover, CA
Est. 2015
License #1046506
A, C-21 +1 more
Hanover, CA
Est. 2018