California contractor license
HARKNESS GREGORY L
- B General Building
HARKNESS GREGORY L is a B General Building contractor in Atascadero, San Luis Obispo County, licensed in California for 36 years (since 1990). As of Aug 10, 2026, the license is active with an expiration date of Jul 31, 2028 on record and a license bond is on file.
HARKNESS GREGORY LB General Building · checked Aug 10, 2026
ActiveLicense number#598109
Licensed sinceJul 11, 1990
Years licensed36 years
Expiration on recordJul 31, 2028
City and countyAtascadero, San Luis Obispo County
License bondOn file
ProjectsNone on file
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Source: California Contractors State License Board (CSLB) and City of Los Angeles permit records. Last updated Aug 10, 2026.