Skip to content
State files updated Oct 29, 2026
Look up a contractor
MenuClose

Home / License lookup / California / Northstar Insulation LLC

California contractor license

Northstar Insulation LLC

Northstar Insulation LLC of Atwater holds California license 1002663 (C2 Insulation and Acoustical). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Jan 31, 2028.

Active

Northstar Insulation LLC, Atwater

  • Workers' comp on file ended Oct 25, 2026.
License
1002663
Class
C2 Insulation and Acoustical
Expires
Jan 31, 2028
Bond
$25,000
Workers' comp
Insured to Oct 25, 2026

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
$25,000Philadelphia Indemnity Insurance Company, from Jan 2, 2026, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredEverest Premier Insurance Company, from Oct 25, 2025, to Oct 25, 2026

Who is on this license?

LLC member
Marissa A. LarsonSince Jan 2, 2026
Responsible managing manager
Jose DelgadoSince Apr 3, 2015

What work does this license cover?

Issued Apr 3, 2015. Reissued Jan 2, 2026.

Which other Atwater businesses hold C2 Insulation and Acoustical?

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)