Mountain Insulation
Verified against CSLB on · View on CSLB
License details
- License number
- 1137068
- Status
- Active
- Classifications
- C-2 · Insulation and Acoustical
- Contractor bond
- $25,000
- Workers' comp
- Exempt
- License term on file
- May 6, 2025 – May 31, 2027
Business
- (530) 446 4466 (CSLB public record)
- PO BOX 1336, Grass Valley, CA 95945Nevada County
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Frequently asked questions
Is Mountain Insulation licensed in California?
Yes. Mountain Insulation holds an active California state contractor license (CSLB #1137068), verified against the CSLB public record on June 17, 2026.
What is Mountain Insulation's CSLB license number?
Mountain Insulation's California contractor license number is 1137068. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1137068
What kind of work is Mountain Insulation licensed for?
Mountain Insulation is classified under Insulation and Acoustical (C-2) by the CSLB.
How do I verify Mountain Insulation's license myself?
Look up license #1137068 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1137068. This page reflects the CSLB public record as of June 17, 2026.
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.