Best Licensed General Contractors in Monrovia, CA
123 general contractors registered in Monrovia 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.
- 20,659 active B general building contractor licenses in Los Angeles County; 125 registered in Monrovia
- 52 of Monrovia's 125 licenses (41.6%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Monrovia: 21 years
- Longest Monrovia licensure: since 1958
- 1,744 county licenses reach their expiration date within 90 days
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- Verified
- August 22, 2026
- Licensed since
- 1958
- Phone
- (626) 359-8900
- Verified
- August 22, 2026
- Licensed since
- 1969
- Phone
- (626) 357-5315
- Verified
- August 22, 2026
- Licensed since
- 1976
- Phone
- (626) 372-5515
- Verified
- August 22, 2026
- Licensed since
- 1976
- Phone
- (626) 303-7917
- Verified
- August 22, 2026
- Licensed since
- 1979
- Phone
- (626) 359-1714
- Verified
- August 22, 2026
- Licensed since
- 1981
- Phone
- (626) 303-4043
- Verified
- August 22, 2026
- Licensed since
- 1987
- Phone
- (626) 253-3678
- Verified
- August 22, 2026
- Licensed since
- 1988
- Phone
- (626) 802-8974
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| H C Olsen Construction Company Inc. | #177029 | On file | 1958 |
| Air Tro Incorporated | #258228 | On file | 1969 |
| R Cooke Construction Inc. | #315749 | On file | 1976 |
| Bowden Development Inc. | #322620 | On file | 1976 |
| Larry Dunn Construction | #386356 | On file | 1979 |
| Garden View Inc. | #413300 | On file | 1981 |
Los Angeles 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: 20,659 active B general building contractor licenses in Los Angeles County, 125 of them registered in Monrovia. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Monrovia license has been held 21 years, and the longest-standing one dates to 1958. 52 of Monrovia's 125 licenses (41.6%) 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: 20,631 of the county's 20,659 licenses carry the same $25,000 bond California sets by statute. 1,744 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 Monrovia: common questions
How many licensed general contractors are there in Monrovia?
125 active B general building contractor licenses are registered in Monrovia, out of 20,659 across Los Angeles County. 123 Monrovia-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. 125 active B general building contractor licenses are registered in Monrovia and 20,659 across Los Angeles County, the longest-standing issued in 1958. 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 52 of Monrovia's 125 currently carry. 1,744 Los Angeles County licenses expire within 90 days.
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