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California contractor license
The Colbart Company
The Colbart Company of Riverside holds California license 852460 (B General Building, C20 Warm-Air Heating, Ventilating and Air-Conditioning, C36 Plumbing). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Sep 30, 2027.
Doing business as Colbart Mechanical Inc.
Licensed 21 years, longer than 79% of 118 active Riverside plumbing contractors.
Active
- Workers' comp ends Dec 24, 2026 (54 days)
The Colbart Company, Riverside
- License
- 852460
- Class
- B General Building; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
- Expires
- Sep 30, 2027
- Bond
- $25,000
- Workers' comp
- Insured to Dec 24, 2026
CSLB file dated Oct 31, 2026
From the CSLB file dated Oct 31, 2026. Not a consumer report; check the board before you hire.
Has the board taken action on this license?
None in the CSLB file dated Oct 31, 2026. Confirm with the board: CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000North River Insurance Company (The), from Mar 10, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredPie Insurance Company (The), from Dec 24, 2024, to Dec 24, 2026
Who is on this license?
- Responsible managing officer, CEO and president
- Marcus D. ManwillSince Jan 8, 2005
What work does this license cover?
Issued Jan 8, 2005. Reissued Sep 6, 2005.
Which other Riverside businesses hold B General Building?
- First Choice Plumbing Heating & Air Conditioning IncLicensed since 1969
- A P S Construction IncLicensed since 2007
- R A W Services IncLicensed since 2011
- Bom Construction IncLicensed since 2015
- Aaa Plumbing Heating And Air Conditioning IncLicensed since 2024
Plumbing Contractors in RiversideCalifornia plumbing contractorsHVAC Contractors in RiversideCalifornia HVAC contractors
What should you check before hiring?
What to ask before you hire
- Ask whether it has been renewed. Something on this license ends within 60 days. Check again before you pay a deposit.
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. California license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- Ask who will be on site. If a crew works on your property, ask for proof of workers' comp. An exemption on file means the contractor told the CSLB it has no employees.
- Put it in a written contract: license number, price, start date and payment schedule. Check the license again on the day you sign.
If the license is lapsed
- Don't sign or pay a deposit until the CSLB shows the license active again.
- Ask the contractor why. For a bond or insurance lapse, ask for proof that the new bond or policy was filed with the CSLB, then check again.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
- Check another contractor. California license lookup
Sources
- CSLB License Master (cslb.ca.gov, Oct 31, 2026)
- Contractors State License Board (CSLB)