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California contractor license

Heydorff Construction Services Inc

Heydorff Construction Services Inc of Burbank holds California license 520788 (B General Building). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Aug 31, 2028.

Licensed 38 years, longer than 93% of 277 active Burbank general contractors.

Active

Heydorff Construction Services Inc, Burbank

License
520788
Class
B General Building
Expires
Aug 31, 2028
Bond
$25,000
Workers' comp
Insured to Sep 12, 2027

CSLB file dated Oct 30, 2026

From the CSLB file dated Oct 30, 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 Oct 30, 2026. Confirm with the board: CSLB license check

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

Bond
$25,000Merchants Bonding Company (Mutual), from Aug 14, 2026, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredOmaha National Casualty Company, from Sep 12, 2026, to Sep 12, 2027

Who is on this license?

Officer
Mary A. HeydorffSince Oct 3, 2022
Responsible managing officer, CEO and president
Michael J. HeydorffSince Nov 14, 1987

What work does this license cover?

Issued Nov 14, 1987. Inactive Dec 1, 1993 to Oct 11, 2011. Reissued Aug 11, 2014.

Which other Burbank businesses hold B General Building?

General Contractors in BurbankCalifornia 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, Oct 30, 2026)
  2. Contractors State License Board (CSLB)