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California contractor license

Harrison's Heating & Air Conditioning Inc

Harrison's Heating & Air Conditioning Inc of Redwood City holds California license 589936 (B General Building, C4 Boiler, Hot Water Heating and Steam Fitting, C20 Warm-Air Heating, Ventilating and Air-Conditioning, C43 Sheet Metal). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires May 31, 2028.

Licensed 36 years, longer than 88% of 7,757 active California HVAC contractors.

Active

Harrison's Heating & Air Conditioning Inc, Redwood City

License
589936
Class
B General Building; C4 Boiler, Hot Water Heating and Steam Fitting; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C43 Sheet Metal
Expires
May 31, 2028
Bond
$25,000
Workers' comp
Insured to Jun 12, 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
$25,000Western Surety Company, from Apr 29, 2025, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredState Compensation Insurance Fund, from Jun 12, 2026, to Jun 12, 2027

Who is on this license?

Officer
Diana A. SmithSince May 2, 2002
Responsible managing officer, CEO and president
Harrison S. SmithSince Mar 8, 1990

What work does this license cover?

Issued Mar 8, 1990. Inactive Mar 22, 1993 to Mar 24, 1994. Reissued May 2, 2002.

Which other Redwood City businesses hold B General Building?

California HVAC contractorsGeneral Contractors in Redwood CityCalifornia 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)