# Klaus & Sons Plumbing Heating & Air Conditioning

Klaus & Sons Plumbing Heating & Air Conditioning is a fire sprinkler company based in Montclair, California. It holds an active CSLB C-16 Fire Protection Contractor license (No. 320990) from the California Contractors State License Board, verified against state records on October 24, 2026.

## California Contractors State License Board licenses

| License | Type | Expires | Status |
|---|---|---|---|
| 320990 | CSLB C-16 Fire Protection Contractor | July 31, 2028 | active |

## Contact and locations

- Phone: 909-982-5698
- Primary location: 5623 Arrow Hwy, Montclair, CA 91763 (San Bernardino County)
- Also known as: Klaus & Sons Construction Inc

## Verify

Search 320990 at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx to confirm current status.

More companies in Montclair: https://plumbregistry.com/fire-protection/california/montclair/

_Source: California Contractors State License Board (CSLB) licensee records (https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx), retrieved October 24, 2026. Published by Plumb Registry._