Is Prostone Services licensed, insured & complaint-free in California?
As of June 27, 2026, Prostone Services holds an active California contractor license (CSLB #954056), classification C54, and carries an active workers'-compensation policy, with no open enforcement actions on record, according to the California Contractors State License Board (CSLB).
Prostone Services
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 Prostone Services — 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
- PIE INSURANCE COMPANY (THE)
- Policy
- WCPI1044867002
- Effective
- May 5, 2026
- Expires
- May 5, 2027
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 #954056 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 C54 covers
CSLB #954056 is classified Ceramic & Mosaic Tile (C-54). 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 Prostone Services licensed in California?
Yes. As of June 27, 2026, the California Contractors State License Board (CSLB) lists Prostone Services with an active contractor license, CSLB #954056 (classification C54), in a CLEAR status.
Is Prostone Services insured?
As of June 27, 2026, the California Contractors State License Board (CSLB) shows an active workers'-compensation policy on file for CSLB #954056. This covers workers' comp; it does not by itself confirm general-liability coverage, which the CSLB does not track.
Does Prostone Services 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 #954056. The CSLB is the authoritative source for complaint history.
Who runs Prostone Services?
The California Contractors State License Board (CSLB) lists 3 principals on record for CSLB #954056, shown by name and title in the personnel section below.
Is Prostone Services bonded?
As of June 27, 2026, the California Contractors State License Board (CSLB) shows an active contractor's bond on file for CSLB #954056. California requires a $25,000 contractor's bond; it protects against certain license-law violations, not a guarantee of work quality.
How long has Prostone Services been licensed?
The California Contractors State License Board (CSLB) shows CSLB #954056 was first issued on November 1, 2010, about 15 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.