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California contractor license

Indoor Environmental Services

Indoor Environmental Services of Sacramento holds California license 646794 (C4 Boiler, Hot Water Heating and Steam Fitting, C20 Warm-Air Heating, Ventilating and Air-Conditioning, C36 Plumbing, C38 Refrigeration, C43 Sheet Metal). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Jun 30, 2028.

Doing business as Famand Inc.

Licensed 34 years, longer than 84% of 149 active Sacramento plumbing contractors.

Active

Indoor Environmental Services, Sacramento

License
646794
Class
C4 Boiler, Hot Water Heating and Steam Fitting; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing; C38 Refrigeration; C43 Sheet Metal
Expires
Jun 30, 2028
Bond
$25,000
Workers' comp
Insured to Apr 1, 2027

CSLB file dated Oct 29, 2026

From the CSLB file dated Oct 29, 2026. Not a consumer report; check the board before you hire.

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

Bond
$25,000Atlantic Specialty Insurance Company, from Oct 20, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredXL Insurance America Inc, from Apr 1, 2026, to Apr 1, 2027

Who is on this license?

Officer
John G. AndersonSince Sep 14, 2020
Responsible managing officer, CEO and president
Eric A. YocumSince Aug 6, 2025
Responsible managing employee
Robert W. HarlowSince Nov 14, 2017
Responsible managing employee
Joshua P. MauerSince Oct 30, 2025

What work does this license cover?

Issued Jun 2, 1992.

Which other Sacramento businesses hold C4 Boiler, Hot Water Heating and Steam Fitting?

Plumbing Contractors in SacramentoCalifornia plumbing contractorsHVAC Contractors in SacramentoCalifornia HVAC 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 29, 2026)
  2. Contractors State License Board (CSLB)