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California contractor license

Illuminate Solar Company

Illuminate Solar Company of Walnut Creek holds California license 937645 (B General Building, C39 Roofing, C46 Solar). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Jun 30, 2027.

Licensed 17 years, longer than 64% of 199 active Walnut Creek general contractors.

Active

  • Workers' comp ends Nov 11, 2026 (10 days)

Illuminate Solar Company, Walnut Creek

License
937645
Class
B General Building; C39 Roofing; C46 Solar
Expires
Jun 30, 2027
Bond
$25,000
Workers' comp
Insured to Nov 11, 2026

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
$25,000Nationwide Mutual Insurance Company, from Jun 14, 2025, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredState Compensation Insurance Fund, from Nov 11, 2016, to Nov 11, 2026

Who is on this license?

Officer
Kayla L. CarlisleSince Jun 28, 2017
Responsible managing officer, CEO and president
Mark F. HafenSince Sep 10, 2009

What work does this license cover?

Issued Sep 10, 2009. Reissued Jun 28, 2017.

Which other Walnut Creek businesses hold B General Building?

General Contractors in Walnut CreekCalifornia general contractorsCalifornia roofing contractors

What should you check before hiring?

What to ask before you hire

  1. Ask whether it has been renewed. Something on this license ends within 60 days. Check again before you pay a deposit.
  2. Get the license number in writing. The name on the license should match the name on your contract and invoice.
  3. Check the class covers the job. A license for one trade doesn't cover another. California license classes
  4. Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
  5. 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.
  6. 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)