licensed-tx

Texas HVAC Contractor › Collin County

MARK Randall Mcmahan

M & M Mechanical INC

MARK Randall Mcmahan holds licenses across 2 Texas trades — HVAC Contractor and A/C Technician under TDLR License #3051. The license is registered in Collin County, Texas. Current status: active.

Verification record

License #3051

  • HVAC Contractor

    A/C Contractor · Expires April 30, 2027

    Active

  • A/C Technician

    A/C Technician · Expired January 17, 2026

    Expired
Years in TDLR record
0
TDLR trades held
2
Tenure rank, HVAC Contractors in Collin
#275

Scope of work

What these licenses authorize

HVAC Contractor

An HVAC Contractor license authorizes a business to install, alter, repair, and service air conditioning and refrigeration equipment in Texas. A Class A license covers equipment over 25 tons; Class B covers under 25 tons. The contractor must designate a Responsible A/C Contractor whose name backs the license and is named on every contract. The license does not cover gas-fired equipment outside the HVAC system, electrical work beyond the unit disconnect, or refrigerant handling for technicians, which requires federal EPA Section 608 certification.

A/C Technician

An A/C Technician license authorizes a person to perform HVAC installation, alteration, and service work in Texas under the direct authority of a licensed HVAC Contractor. A Certified (CER) technician has passed the TDLR exam and accumulated verifiable field experience; a Registered (REG) technician is in the entry pathway. Neither status authorizes contracting for work independently — only a licensed contractor may bid and contract. Refrigerant handling additionally requires federal EPA Section 608 certification.

Source

Published from the Texas Department of Licensing & Regulation All Licenses dataset. Record last changed · last verified against TDLR .

Related

Other HVAC Contractors in Collin County

View all →