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California contractor license

Jerry And Don's Yager Pump And Well Service

Jerry And Don's Yager Pump And Well Service of Petaluma holds California license 424778 (C36 Plumbing, C57 Well Drilling). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Aug 31, 2028.

Doing business as Mickelson Enterprises Inc.

Licensed 44 years, longer than 89% of 29 active Petaluma plumbing contractors.

Active

Jerry And Don's Yager Pump And Well Service, Petaluma

License
424778
Class
C36 Plumbing; C57 Well Drilling
Expires
Aug 31, 2028
Bond
$25,000
Workers' comp
Insured to Jan 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
$25,000Ohio Casualty Insurance Company (The), from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredService American Indemnity Company, from Jan 1, 2026, to Jan 1, 2027

Who is on this license?

Officer
Marcia M. MickelsonSince Jul 6, 1984
Responsible managing officer, CEO and president
James M. MickelsonSince Jul 6, 1984
LLC director
Benjamin A. CampanileSince Jul 30, 2026

What work does this license cover?

Issued Jul 6, 1982. Inactive Apr 1, 2001 to Aug 9, 2012. Reissued Mar 28, 1995.

Which other Petaluma businesses hold C36 Plumbing?

California plumbing 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)