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Claim This BusinessAbout Diaz Quality Services
Diaz Quality Services operates as a residential HVAC contractor in Denton, Texas, earning a pristine 5-star rating across 37 verified client reviews. The team, led by Billy Diaz and technician Tony, handles air conditioning repair, mini-split system installations, and preventive maintenance for homeowners throughout the greater Denton County area. Their service approach emphasizes transparent pricing and technician transparency, with Billy routinely informing homeowners about existing equipment warranties before recommending repairs.
The contractor distinguishes itself through responsive same-day service capabilities and fair pricing structures. Multiple reviewers highlight Billy's willingness to explain system operations and provide discounts on parts replacements. Their expertise spans diagnosing complex refrigerant leakage issues in aging equipment and balancing heating/cooling systems for optimal comfort.
Customers praise specific technicians by name for tackling challenging situations. When Bharat Setti's two 12-year-old AC units failed simultaneously during a summer heat wave, Billy and Tony pinpointed refrigerant leaks, quoted a fair price with discount, and had both units running the next day. Edward Olson needed a mini-split system for an 800 sf home addition, and the Diaz team delivered a clean installation with full system explanation. Julie Dinsmore's mini-split issue brought Billy and his team the same day, with diagnosis completed ASAP.
What Customers Say
All 37 reviews award 5 stars, with multiple reviewers explicitly naming technicians Billy and Tony. Seven reviewers mention specific repair scenarios including refrigerant leakage, heat restoration, and mini-split diagnostics. Reviewers consistently cite fair pricing, same-day responsiveness, and technician expertise as key strengths.
Services
AC Repair
Diagnosis and repair for air conditioning systems, including refrigerant leak detection and component replacement.
AC Maintenance
Annual preventive maintenance tune-ups to keep residential cooling systems running efficiently.
Mini-Split Installation
Installation of ductless mini-split systems for home additions and targeted zone cooling.
Heating Repair
Heat pump and heating system repair services to restore warmth during cold weather.
System Diagnostics
Comprehensive system diagnostics to identify issues and explain findings to homeowners.
Indoor Air Quality Solutions
Assessment and solutions for improving residential air quality and circulation.