Best Licensed General Contractors in Columbia, CA
18 general contractors registered in Columbia hold current CSLB licenses, verified against official records as of August 22, 2026. The 8 below are the top-ranked, ordered by workers' compensation cover and years licensed.
- 279 active B general building contractor licenses in Tuolumne County; 18 registered in Columbia
- 2 of Columbia's 18 licenses (11.1%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Columbia: 22 years
- Longest Columbia licensure: since 1977
- 26 county licenses reach their expiration date within 90 days
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- Verified
- August 22, 2026
- Licensed since
- 1991
- Phone
- (209) 532-8718
- Verified
- August 22, 2026
- Licensed since
- 2021
- Phone
- (209) 768-5308
- Verified
- August 22, 2026
- Licensed since
- 1977
- Phone
- (209) 613-4341
- Verified
- August 22, 2026
- Licensed since
- 1981
- Phone
- (209) 768-7623
- Verified
- August 22, 2026
- Licensed since
- 1982
- Phone
- (209) 532-0686
- Verified
- August 22, 2026
- Licensed since
- 1990
- Phone
- (209) 743-0442
- Verified
- August 22, 2026
- Licensed since
- 1995
- Phone
- (209) 409-4233
- Verified
- August 22, 2026
- Licensed since
- 2002
- Phone
- (209) 768-9044
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Brenden Simunaci/Simunaci Construction | #619757 | On file | 1991 |
| Mountain Mann Construction | #1078300 | On file | 2021 |
| Bob Ragan Construction | #335069 | Exempt or none on file | 1977 |
| Ron Hessler Construction Inc. | #414227 | Exempt or none on file | 1981 |
| Weller Construction Inc. | #429107 | Exempt or none on file | 1982 |
| Luther Engineering | #607189 | Exempt or none on file | 1990 |
Tuolumne County general building licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 279 active B general building contractor licenses in Tuolumne County, 18 of them registered in Columbia. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Columbia license has been held 22 years, and the longest-standing one dates to 1977. 2 of Columbia's 18 licenses (11.1%) carry current workers' compensation cover in CSLB's file. That is employee injury cover, not liability insurance, and a blank usually means an owner-operator with no employees - lawful, and not a mark against anyone. The contractor bond is not a signal here: 279 of the county's 279 licenses carry the same $25,000 bond California sets by statute. 26 county licenses reach their expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.
General Contractors in Columbia: common questions
How many licensed general contractors are there in Columbia?
18 active B general building contractor licenses are registered in Columbia, out of 279 across Tuolumne County. 18 Columbia-registered companies passed our license verification, and the 8 on this page are the top-ranked of those. Only licenses CSLB shows as CLEAR and unexpired are listed.
Does California license general contractors?
Yes. California licenses contractors by classification, and B is the CSLB classification that authorises this work. 18 active B general building contractor licenses are registered in Columbia and 279 across Tuolumne County, the longest-standing issued in 1977. Only CLEAR, unexpired licenses appear here.
How do I check a general contractor's license in California?
Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which 2 of Columbia's 18 currently carry. 26 Tuolumne County licenses expire within 90 days.