Verification record
License #6556
- Active
Master Electrician
Master Electrician · Expires April 1, 2027
- Expired
HVAC Contractor
A/C Contractor · Expired November 19, 2025
Texas Master Electrician › Williamson County
Allison, David E
David E Allison holds licenses across 2 Texas trades — Master Electrician and HVAC Contractor under TDLR License #6556. The license is registered in Williamson County, Texas. Current status: active.
Verification record
License #6556
Master Electrician
Master Electrician · Expires April 1, 2027
HVAC Contractor
A/C Contractor · Expired November 19, 2025
Scope of work
A Master Electrician license authorizes the holder to design, install, alter, and supervise all classes of electrical work in Texas, including the authority to qualify an Electrical Contractor business. The license is the highest individual electrical tier issued by TDLR. To qualify, an applicant must hold a Journeyman Electrician license, accumulate two years of journeyman experience, and pass the master exam. Annual renewal requires four hours of continuing education on the current National Electrical Code.
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.
Source
Published from the Texas Department of Licensing & Regulation All Licenses dataset. Record last changed · last verified against TDLR .
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