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Claim This BusinessQ Service Heating & Air Conditioning is a licensed HVAC contractor serving San Marcos and nearby New Braunfels with a 4.8-star average across 24 verified reviews. The company handles residential heating, cooling, and ventilation systems, including new installations, emergency repairs, and preventive maintenance. Their service hours run Monday through Friday from 8 AM to 6:30 PM, with Saturday availability until 2:30 PM. Homeowners in the greater San Marcos area can reach them at (512) 757-5423.
What distinguishes Q Service is their straightforward approach to diagnosis and pricing. Multiple reviewers note the technician took time to explain issues in plain language and walked through repair options with pros and cons, rather than pushing the most expensive solution. The company installed a Carrier 5-ton heat pump for at least one homeowner who specifically mentioned satisfaction with both the machine warranty and labor guarantee. Reviewers consistently describe the work as reasonably priced with no overselling, and the team arrives quickly to diagnose problems other contractors could not resolve.
Customer stories from recent reviews paint a clear picture. When James Joyner's AC failed during a brutal summer afternoon in New Braunfels, Q Service sent a technician who worked through the heat to get the system running the same day. Aidan Thompson's review mentions the technician resolved a new-home AC issue quickly and affordably, validating a friend's strong endorsement. Robert Hamilton specifically praised the team's communication and the time taken to present multiple repair paths. Mary T. Salas's Carrier installation review highlights the company's handling of the entire process from purchase through warranty documentation.
Seven of eight reviews award 5 stars, with praise for same-day emergency response, honest diagnostics, and no overselling. The single 1-star review cites a phone-answering issue, while positive reviews highlight specific technicians and transparent communication about repair options.
| Sunday | Closed |
| Monday | 8 AM–6:30 PM |
| Tuesday | 8 AM–6:30 PM |
| Wednesday | 8 AM–6:30 PM |
| ThursdayToday | 8 AM–6:30 PM |
| Friday | 8 AM–6:30 PM |
| Saturday | 8 AM–2:30 PM |
Diagnosing and repairing cooling system failures, tune-ups, and refrigerant recharges for residential units.
Fixing furnace and heating equipment issues, including ignition problems and thermostat malfunctions.
Installing new heat pump systems including major brands like Carrier for whole-home heating and cooling.
Troubleshooting unknown AC problems with clear explanation of issues and multiple repair options.
Same-day response for AC failures and heating emergencies during business hours.
Installing and configuring heating and cooling systems in newly constructed residential properties.