Verification record
License #51142
- Active
Master Electrician
Master Electrician · Expires July 26, 2027
- Expired
A/C Technician
A/C Technician · Expired July 24, 2026
Texas Master Electrician › Gaines County
Demetrio JR Castillo
Castillo, Demetrio JR
Demetrio JR Castillo holds licenses across 2 Texas trades — Master Electrician and A/C Technician under TDLR License #51142. The license is registered in Gaines County, Texas. Current status: active.
- Years in TDLR record
- 0
- TDLR trades held
- 2
- Tenure rank, Master Electricians in Gaines
- #13
Disciplinary history
No disciplinary actions on record with TDLR.
Scope of work
What these licenses authorize
Master Electrician
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.
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 .
licensed-tx is not affiliated with or endorsed by TDLR or the State of Texas, and is not a consumer reporting agency. This record is for informational purposes only — confirm current status directly with TDLR.
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