M J MECHANICAL SERVICES INC
HVAC Contractor license 853653 issued by the California Contractors State License Board. Status shown as of August 17, 2026.
This license is active. It is valid through January 31, 2027, 167 days from today, according to the most recent CSLB public file.
| License holder | M J MECHANICAL SERVICES INC |
|---|---|
| Business name | M J MECHANICAL SERVICES INC |
| License type | HVAC Contractor |
| License number | 853653 |
| Status today | Active |
| Expiration date | January 31, 2027 |
| City | San Carlos |
| County of record | San Mateo |
| Phone on file | (650) 592 5634 |
| Classifications | C20 |
| Board status | CLEAR |
| Contractor bond | $25,000 |
| Issuing authority | California Contractors State License Board |
| First seen in public file | August 17, 2026 |
| Last confirmed | August 17, 2026 |
How to confirm this yourself
This page reproduces the CSLB public license file, which the agency republishes daily. Before you hire anyone, confirm the record at the source and ask the contractor for proof of insurance separately, since licensing and insurance are not the same thing and the state file does not cover insurance.
Verify at CSLB → File a complaint
There are 80 licensed HVAC contractors on record in San Mateo County. Compare them all →