Skip to content
State files updated Nov 1, 2026
Look up a contractor
MenuClose

Home / License lookup / California / Guinn Corporation

California contractor license

Guinn Corporation

Guinn Corporation of Bakersfield holds California license 553806 (A General Engineering, HAZ Hazardous Substance Removal Certification). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Jan 31, 2027.

Licensed 37 years, longer than 92% of 662 active Bakersfield general contractors.

Active

Guinn Corporation, Bakersfield

License
553806
Class
A General Engineering; HAZ Hazardous Substance Removal Certification
Expires
Jan 31, 2027
Bond
$25,000
Workers' comp
Insured to Jun 1, 2027

CSLB file dated Nov 1, 2026

From the CSLB file dated Nov 1, 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 Nov 1, 2026. Confirm with the board: CSLB license check

What bond, insurance and workers' comp are on file?

Bond
$25,000Travelers Casualty And Surety Company Of America, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredArch Insurance Company, from Jun 1, 2026, to Jun 1, 2027

Who is on this license?

Officer
Timothy L. GuinnSince Jan 5, 2005
Responsible managing officer
Jeffrey D. AffonsoSince Jan 13, 1989
CEO and president
Gary E. GuinnSince Jan 13, 1989

What work does this license cover?

Issued Jan 13, 1989.

What other licenses does this business hold?

Which other Bakersfield businesses hold A General Engineering?

General Contractors in BakersfieldCalifornia general contractors

What should you check before hiring?

What to ask before you hire

  1. Get the license number in writing. The name on the license should match the name on your contract and invoice.
  2. Check the class covers the job. A license for one trade doesn't cover another. California license classes
  3. Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
  4. 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.
  5. 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

  1. Don't sign or pay a deposit until the CSLB shows the license active again.
  2. 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.
  3. If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
  4. Check another contractor. California license lookup

Sources

  1. CSLB License Master (cslb.ca.gov, Nov 1, 2026)
  2. Contractors State License Board (CSLB)