How often should I change my HVAC filter in Texas?

In Texas, change your HVAC filter every 30-60 days during peak cooling season (May-September) and every 60-90 days during milder months. Homes with pets, allergies, or older ductwork may need more frequent changes.

When should I schedule HVAC maintenance in DFW?

Schedule AC maintenance in March or April (before summer heat) and furnace maintenance in September or October (before winter). This timing ensures your system is ready for peak demand and lets technicians catch issues early.

What does an HVAC tune-up include?

A professional tune-up includes checking refrigerant levels, cleaning condenser coils, inspecting electrical connections, testing thermostat calibration, checking drain lines, lubricating moving parts, and testing system performance. At Frosty's HVAC, our tune-ups cover 20+ inspection points.

HVAC Maintenance Checklist for Texas Homeowners

By Omar Jacobo | EPA 608 #2396328 | April 2026

Why is HVAC maintenance especially important in Texas?

Texas puts more stress on HVAC systems than almost any other state. We run AC from April through October — sometimes 7 months straight of near-constant operation. In my 7 years of residential HVAC in DFW, the systems I see lasting the longest are the ones with consistent maintenance. A well-maintained system lasts 15-20 years. A neglected one? Often 8-10 before it needs replacement.

What should homeowners do every month?

1. Check and replace your air filter (every 30-60 days in summer)
2. Visually inspect the outdoor unit — clear debris, leaves, and grass clippings
3. Make sure all vents and returns are open and unblocked
4. Check your thermostat is reading accurately (compare with a separate thermometer)
5. Listen for unusual sounds — grinding, squealing, or clicking indicates a problem

What should be done before summer in DFW?

March and April are the ideal months for pre-summer AC preparation. Schedule a professional tune-up that includes:

• Refrigerant level check and recharge if needed
• Condenser coil cleaning (outdoor unit)
• Evaporator coil inspection (indoor unit)
• Drain line flush — clogged drains are the #1 summer service call in DFW
• Electrical connection inspection and tightening
• Thermostat calibration and smart thermostat programming
• Blower motor and fan inspection
• Overall system performance test

What about fall and winter maintenance?

DFW winters are mild but we do use our furnaces. Schedule a furnace inspection in September or October. This includes checking the heat exchanger for cracks (carbon monoxide risk), testing ignition components, inspecting the gas valve, and verifying proper venting. A cracked heat exchanger is rare but dangerous — it's the one thing you absolutely need a professional to inspect annually.

How much does HVAC maintenance cost in DFW?

A professional tune-up typically costs $75-$150 per visit. At Frosty's HVAC, we keep our maintenance pricing transparent and competitive. Consider it insurance — a $100 tune-up can prevent a $500+ emergency repair or extend your system's life by years.

Schedule your tune-up

Call (469) 254-0548 to schedule maintenance across Farmers Branch, Coppell, Irving, Flower Mound, Lewisville, Grapevine.

Texas Summer Prep →Indoor Air Quality →← HVAC Hub