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California contractor license
Albert Nahman Plumbing Heating And Cooling
Albert Nahman Plumbing Heating And Cooling of Alameda holds California license 1083634 (C20 Warm-Air Heating, Ventilating and Air-Conditioning, C36 Plumbing, C42 Sanitation System). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Jan 31, 2027.
Doing business as Pipedreams Ventures Holdings LLC.
Active
Albert Nahman Plumbing Heating And Cooling, Alameda
- License
- 1083634
- Class
- C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing; C42 Sanitation System
- Expires
- Jan 31, 2027
- Bond
- $25,000
- Workers' comp
- Employee leasing 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
- $25,000Atlantic Specialty Insurance Company, from Jan 17, 2026, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- Employee leasingFrank Winston Crum Insurance Company, from Jan 1, 2026, to Jan 1, 2027
Who is on this license?
- Responsible managing employee
- Michael L. DauenhauerSince Jun 5, 2026
- LLC manager
- Dan LauferSince Nov 10, 2021
What work does this license cover?
Issued Nov 10, 2021. Reissued Jan 17, 2023.
- C20 Warm-Air Heating, Ventilating and Air-Conditioning
- C36 Plumbing
- C42 Sanitation System
What other licenses does this business hold?
- Paso Robles Plumbing Heating And Air1099384 · C20 · Active
- Wighton's Electric Plumbing Heating & Air Conditioning1083949 · C20 · Suspended
Which other Alameda businesses hold C20 Warm-Air Heating, Ventilating and Air-Conditioning?
- Paso Robles Plumbing Heating And AirLicensed since 2022
What should you check before hiring?
What to ask before you hire
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. California license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- 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.
- 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
- Don't sign or pay a deposit until the CSLB shows the license active again.
- 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.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
- Check another contractor. California license lookup
Sources
- CSLB License Master (cslb.ca.gov, Nov 1, 2026)
- Contractors State License Board (CSLB)