How Often Should You Change Your HVAC Air Filter in San Antonio?
Why Filter Changes Matter in San Antonio
Living in San Antonio means dealing with dust, pollen, and other airborne particles that can clog your HVAC air filter faster than in other regions. A dirty filter forces your system to work harder, driving up energy bills and shortening the lifespan of your equipment.
How Often to Change Your Filter
In San Antonio’s dry, dusty climate, we recommend changing your HVAC air filter every 30 to 60 days during peak usage seasons (summer and winter), rather than the typical 90-day recommendation you’ll find on most filter packaging.
Here’s why San Antonio demands more frequent changes:
- Dust accumulation restricts airflow faster in our climate
- High usage periods during triple-digit summer temperatures mean your system runs more
- Seasonal pollen increases in spring add to the load
Benefits of Regular Filter Changes
Keeping a clean filter in your system provides real, measurable benefits:
- 15% improvement in energy efficiency
- Extended equipment lifespan by reducing strain on the blower motor
- Better indoor air quality for your family
- Fewer repair calls from preventable issues
Our Recommendation
We recommend monthly filter inspections at minimum. Pull out the filter and hold it up to light — if you can’t see through it, it’s time for a replacement.
Regular filter changes are just one part of keeping your system healthy. Check out our complete HVAC maintenance schedule for a full seasonal checklist.
If you’re unsure which filter is right for your system or want help setting up a maintenance schedule, contact us or call us anytime. Our maintenance service includes filter checks and recommendations for the right filter type and MERV rating for your home.
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.