The Complete HVAC Maintenance Schedule for San Antonio Homeowners
Why Maintenance Matters in San Antonio
San Antonio’s climate puts extraordinary demands on HVAC systems. With summer temperatures regularly exceeding 100°F and the occasional winter freeze, your heating and cooling equipment works hard year-round. Regular professional maintenance is the single best investment you can make to keep it running reliably and efficiently.
Spring Maintenance (March – April)
Before cooling season hits, schedule professional service that includes:
- AC system inspection to catch problems before they become emergencies
- Coil cleaning to ensure efficient heat transfer
- Refrigerant level checks to verify proper charge
- Electrical connection inspection for safety
- Drain line clearing to prevent water damage and mold growth
Fall Maintenance (October – November)
Before heating season, your technician should:
- Inspect the heating system (heat pump or furnace) for safe operation
- Calibrate the thermostat for accurate temperature readings
- Verify safety controls are functioning properly
- Replace the air filter with a fresh one
- Check gas connections (if applicable) for leaks
Year-Round Homeowner Tasks
Between professional visits, there are simple things you can do monthly:
- Check your air filter and replace it if dirty (every 30-60 days in San Antonio)
- Inspect the outdoor unit and clear any debris, leaves, or obstructions
- Listen for unusual noises during operation
- Check that all vents are open and unobstructed by furniture
- Monitor your energy bills for unexpected increases
The Bottom Line
Twice-yearly professional maintenance combined with simple monthly checks is the formula for reliable, efficient HVAC performance in San Antonio. Most breakdowns we see could have been prevented with regular maintenance.
Not sure how often to change your air filter? We’ve got a guide for that too. And if your system is getting older, check our guide on when to replace your HVAC system.
Ready to get on a maintenance schedule? Contact us to set up your seasonal tune-up, or learn more about our HVAC maintenance plans.
Written by Chris Brehm
Chris is the founder and lead technician at Infinity Heat and Air. With years of hands-on HVAC experience, he writes practical guides to help San Antonio homeowners stay comfortable and make informed decisions about their heating and cooling systems.