Required, on file
California contractor license bond
$25,000
Every active CSLB license needs one. Renew or replace it here.
From $200/yr
Get this bondLicense activeVerified against CSLB records
HARTVICKSON JOHN D
Warm-air heating, ventilating and air-conditioning contractor in Concord, Contra Costa County. CA license #409642
C20 · Warm-Air Heating, Ventilating And Air-Conditioning
- Licensed since
- 198145 years
- Entity
- Sole ownerConcord, CA
- License bond
- $25,000On file
- Workers' comp
- CoveredPolicy through Jul 2027
- Discipline
- NoneOn public record
Trusted by
License and compliance history
Source: CSLB public license data
- 1981License issued, C20 Warm-Air Heating, Ventilating And Air-ConditioningIssued Jul 29, 1981. Sole owner.
- 2023License bond of $25,000 on fileCurrent bond effective Jan 1, 2023.
- 2026Workers' comp policy on fileWESCO INSURANCE COMPANY, policy #WES3870515. Effective Jul 12, 2026. Current through Jul 12, 2027.
- NowLicense expiration on recordJul 31, 2027.
- NowNo disciplinary actionsNone on CSLB public record as of Jul 15, 2026.
Insurance a C20 contractor usually needs
What owners and GCs typically ask for on residential and light commercial jobs
- Workers' compensationCalifornia requires it as soon as a contractor has employees.Get quotes
- General liabilityOwner contracts commonly ask for $1M per occurrence / $2M aggregate, often with additional insured.Get quotes
- Builder's riskNew homes and major rebuilds need it while the structure is going up; the contract says who buys it.Get quotes
- Commercial autoCovers trucks and the trailer hauling materials to each site.Get quotes
Bonds for California C20 contractors
All California bondsOften required
Bond of qualifying individual
$25,000
Needed when the license qualifier owns less than 10% of the business.
From $220/yr
Get this bondPublic work
Bid bond
Often 10% of bid
Submitted with a bid on many California public projects.
Free
Get prequalifiedAfter award
Performance and payment bonds
Up to 100% of contract
California public works over $25,000 require a payment bond.
Quoted per project
Get a quoteBonds are underwritten and issued by our surety partner. Rates depend on the applicant's credit and history.
Questions about HARTVICKSON JOHN D
What work can HARTVICKSON JOHN D do with a C20 license?
CSLB records list C20 (Warm-Air Heating, Ventilating And Air-Conditioning) on this license, so HARTVICKSON JOHN D can take warm-air heating, ventilating and air-conditioning work.
Does HARTVICKSON JOHN D have a contractor license bond?
Yes. CSLB records show a $25,000 contractor license bond on file as of Jul 15, 2026.
Does HARTVICKSON JOHN D carry workers' compensation?
CSLB shows a workers' comp policy on file, current through July 2027. Ask for a certificate of insurance before work starts.
How current is this information?
License, bond and comp data were last checked against CSLB on Jul 15, 2026. We recheck it periodically.
How this profile is built
BLDAssure compiles this profile automatically from public records and refreshes it periodically. We don't accept payment to change any record.
| License, classifications, bond | California Contractors State License Board | Verified Jul 15, 2026 |
|---|---|---|
| Workers' compensation | CSLB workers' comp records | Verified Jul 15, 2026 |