Truth Maintenance & Services | Certified HVAC Repair in Dallas, TX

750 North St Paul St Ste 250, Dallas, TX 75201

(469) 615-4162

Business Profile

Truth Maintenance & Services is your trusted Dallas HVAC expert, dedicated to solving the most common local heating and cooling problems. We understand that many area homes face specific issues like failing heat pump reversing valves and refrigerant leaks, which can drastically reduce system efficiency and comfort. Our team provides accurate diagnostics, reliable repairs, and preventative maintenance to keep your system running at peak performance. Serving Dallas, TX and surrounding communities, we focus on honest assessments and lasting solutions, ensuring your home stays comfortable through every Texas season. Count on us for straightforward service you can trust.

Common Questions

My Dallas home's heat pump is blowing cold air in winter. Could it be the reversing valve?

Yes, a faulty reversing valve is a common culprit when a heat pump blows cold air in heating mode here in Dallas. This valve is crucial for switching your system between heating and cooling. Our technicians can diagnose the issue precisely—whether it's a stuck valve, an electrical problem, or a refrigerant issue—and perform the necessary repair to restore your warm air quickly and efficiently.

Why is my AC in Dallas not cooling as well as it used to, even after changing the filter?

A frequent cause of reduced cooling capacity in Dallas homes is a refrigerant leak. Over time, even small leaks lower the refrigerant charge, forcing your system to work harder and cool less effectively. Simply adding refrigerant isn't a fix—the leak must be found and sealed. We perform thorough leak detection and repair the issue correctly, then recharge your system to the manufacturer's specifications to restore full cooling power.

What kind of HVAC maintenance do Dallas homes need to prevent common issues?

Proactive maintenance is key to preventing the specific issues Dallas homeowners face. Our maintenance service includes checking refrigerant levels and pressures to catch leaks early, inspecting and testing components like the heat pump reversing valve for proper operation, cleaning coils, and ensuring all electrical connections are secure. This regular care improves efficiency, extends system life, and helps avoid unexpected breakdowns during our hot summers or cooler winters.

Service Capabilities

  • HVAC installation or replacement
  • HVAC system repair

Business Location & Hours



Mon:Open 24 hours
Tue:Open 24 hours
Wed:Open 24 hours
Thu:Open 24 hours
Fri:Open 24 hours
Sat:Open 24 hours
Sun:Open 24 hours


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