Skip to content
State files updated Oct 30, 2026
Look up a contractor
MenuClose

Home / License lookup / California / M T Crest Communications

California contractor license

M T Crest Communications

M T Crest Communications of El Monte holds California license 857316 (C7 Low Voltage Systems). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Jun 30, 2027.

Doing business as M T Crest Inc.

Active

M T Crest Communications, El Monte

License
857316
Class
C7 Low Voltage Systems
Expires
Jun 30, 2027
Bond
$25,000
Workers' comp
Insured to May 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
$25,000American Contractors Indemnity Company, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredHartford Underwriters Insurance Company, from May 1, 2025, to May 1, 2027

Who is on this license?

Responsible managing officer, CEO and president
Tetsuya YamasakiSince Apr 13, 2005

What work does this license cover?

Issued Apr 13, 2005. Reissued Jun 11, 2007.

Which other El Monte businesses hold C7 Low Voltage Systems?

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)