Licensed Contractors in Longmont, California

Longmont has 9 licensed contractors registered with the California Contractors State License Board across 5 trade classifications. The most common specialties are Electrical Contractor (4), Fencing Contractor (1), Painting and Decorating Contractor (1). 5 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

B: General Building Contractor (2) A: General Engineering Contractor (3)

Specialty Contractors

Western Refractory Construction Incorporated Active
License #600240 A Longmont, CA Est. 1990
Safety Rails Of California Inc Active
License #773122 C-13 Longmont, CA Est. 1999
Integrated Water Services Inc Active
License #836211 A, C-10 Longmont, CA Est. 2004
Sunburst Energy Active
License #843856 B, C-10 Longmont, CA Est. 2004
Dustin Baker Dba Dustin Baker Construction Active
License #880471 B Longmont, CA Est. 2006
W E C Powerline Construction Active
License #990868 C-10 Longmont, CA Est. 2014
Blackledge Marine Services Active
License #1050534 A Longmont, CA Est. 2019
Trikona Co Active
License #1150548 C-10 Longmont, CA Est. 2026
Base Group The Suspended
License #944547 C-33 Longmont, CA Est. 2010

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