Is Jon Joseph Mattson licensed, insured & complaint-free in California?
As of June 27, 2026, Jon Joseph Mattson holds an active California contractor license (CSLB #1031071), classification D28, and carries an active workers'-compensation policy, with no open enforcement actions on record, according to the California Contractors State License Board (CSLB).
Jon Joseph Mattson
Active · no open actions
License status is CLEAR with no open enforcement actions on record, per the California Contractors State License Board (CSLB).
- Bond surety — who to file a claim against
- Bond number
- How to make a bond claim
- What “Active · no open actions” means + what to ask
- License expiration date
- Registered business entity & contact
- Dated certificate PDF — emailed with your receipt
Unlock every field above for Jon Joseph Mattson — including who to file a claim against the $25,000 bond. Delivered as a dated certificate PDF, emailed with your receipt. Public records, not a background check.
Principals on record · CSLB
Workers’ compensation · CSLB
- Carrier
- MARKEL INSURANCE COMPANY
- Policy
- MWC015606407
- Effective
- September 13, 2025
- Expires
- September 13, 2026
What this record means
How to verify this yourself
Every fact on this page comes from the California Contractors State License Board (CSLB). You can confirm it directly: look up CSLB license #1031071 on the official CSLB site. This page is current as of June 27, 2026; the CSLB record is updated continuously.
What the contractor's bond covers
California requires most licensed contractors to carry a $25,000 contractor's bond. It can pay certain claims for license-law violations — it is not insurance for your project and is not a measure of work quality. The CSLB lists the surety and bond number.
What this record does and does not tell you
The California Contractors State License Board (CSLB) tracks license status, classification, bond, and workers'-comp. It does not rate work quality, track general-liability insurance, or collect customer reviews. Use it to confirm the license is real and in good standing, then check references and a written contract separately.
What classification D28 covers
CSLB #1031071 is classified D28. A California contractor is licensed only for the classifications on record; work outside them may fall outside the license. The full classification list is on the official CSLB record.
Common questions
Is Jon Joseph Mattson licensed in California?
Yes. As of June 27, 2026, the California Contractors State License Board (CSLB) lists Jon Joseph Mattson with an active contractor license, CSLB #1031071 (classification D28), in a CLEAR status.
Is Jon Joseph Mattson insured?
As of June 27, 2026, the California Contractors State License Board (CSLB) shows an active workers'-compensation policy on file for CSLB #1031071. This covers workers' comp; it does not by itself confirm general-liability coverage, which the CSLB does not track.
Does Jon Joseph Mattson have complaints or violations?
As of June 27, 2026, the California Contractors State License Board (CSLB) shows no open enforcement actions, citations, or disciplinary bonds on record for CSLB #1031071. The CSLB is the authoritative source for complaint history.
Who runs Jon Joseph Mattson?
The California Contractors State License Board (CSLB) lists Jon Joseph Mattson as a sole-owner or single-principal license (CSLB #1031071). The named principal is shown in the personnel section below, as recorded by the CSLB.
Is Jon Joseph Mattson bonded?
As of June 27, 2026, the California Contractors State License Board (CSLB) shows an active contractor's bond on file for CSLB #1031071. California requires a $25,000 contractor's bond; it protects against certain license-law violations, not a guarantee of work quality.
How long has Jon Joseph Mattson been licensed?
The California Contractors State License Board (CSLB) shows CSLB #1031071 was first issued on September 15, 2017, about 8 years ago.
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This record compiles California Contractors State License Board (CSLB) data — license, insurance, principals, and enforcement — that CSLB publishes across separate pages, current as of June 27, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.