HVAC Diagnostics in San Antonio

About this service

HVAC Diagnostics for San Antonio homes & businesses

When San Antonio homeowners and business owners search for reliable hvac diagnostics, Manuel & Sons Service Co. is the family-owned HVAC company they call. Comprehensive diagnostics on stubborn AC and heating issues — refrigerant, electrical, airflow, and controls.

Every hvac diagnostics job is performed by a licensed Texas HVAC technician (License TACLB80551C) with the parts, tools, and experience to do it right the first time. We serve the entire San Antonio metro — from Alamo Heights and Stone Oak to Boerne, Schertz, New Braunfels, and the surrounding hill country.

Signs you need hvac diagnostics

• Unusually high electric or gas bills compared to previous seasons
• Uneven temperatures, weak airflow, or rooms that won't reach the set point
• Strange noises, smells, or visible water leaks around the indoor unit
• System short-cycling, refusing to start, or tripping the breaker
• Equipment over 10 years old without recent professional maintenance

Why choose Manuel & Sons for hvac diagnostics?

• Licensed Texas HVAC contractor

  TACLB80551C — fully licensed and insured for residential and commercial HVAC work statewide.

• Up-front, honest pricing

  Written quotes before any work begins. No commission upsells. No surprise charges after the truck leaves.

• Same-day service across San Antonio

  Most repair calls are completed the same day. Our trucks are stocked with the most common parts for every major HVAC brand.

• All major brands serviced

  Trane, Lennox, Carrier, Goodman, Rheem, Ruud, York, American Standard, Bryant, Amana, Daikin, Mitsubishi and more.

• Family owned and locally operated

  We answer the phone, we show up, and we stand behind every job. Three generations of San Antonio HVAC experience.