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California contractor license

Nielsen Builders Inc

Nielsen Builders Inc of El Cajon holds California license 969919 (B General Building). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Feb 29, 2028.

Licensed 14 years, longer than 53% of 383 active El Cajon general contractors.

Active

Nielsen Builders Inc, El Cajon

License
969919
Class
B General Building
Expires
Feb 29, 2028
Bond
$25,000
Workers' comp
Insured to Oct 1, 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
$25,000Nationwide Mutual Insurance Company, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredState Compensation Insurance Fund, from Oct 1, 2014, to Oct 1, 2027

Who is on this license?

Officer
Thomas W. NielsenSince Feb 8, 2012
Responsible managing officer, CEO and president
Eric S. NielsenSince Feb 8, 2012

What work does this license cover?

Issued Feb 8, 2012.

Which other El Cajon businesses hold B General Building?

General Contractors in El CajonCalifornia 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)