How often should I service my HVAC system?

Quick Answer

Have a pro check your cooling system once a year, ideally in spring before the heat arrives. Have your heating system checked once a year too, ideally in fall. ENERGY STAR recommends exactly this pre-season pattern. Between visits, you have one regular job: the filter. Check it every month, and change it when it is dirty.

Visual explanation

Caption: Twice-a-year care: cooling checked in spring, heating checked in fall, filters monthly between visits.The calendar teaches the schedule itself: the two visits are tied to the seasons that stress the system most. The monthly filter marks show the one task that is yours in between.

What you can safely check

• Put filter checks (monthly) and seasonal service (spring, fall) on your calendar.
• Between visits, watch for warning signs: leaks, new noises, rooms that feel different, bills creeping up.
• Do not wait for the season if the system is noisy, leaking, icing, or cooling poorly now — book a visit promptly.

How this works

An HVAC system is a machine. It works hardest in the worst weather. That is why the timing of service matters. A check just before the heavy season catches wear while it is still cheap to fix. And while appointments are still available.

The spring cooling check finds summer failures before they happen. Weak starting parts get tested before the first 100-degree week. Dirty coils — the parts that pull heat from the air — get cleaned before they tax every cooling cycle. Slow drains get cleared before they overflow into a ceiling.

The fall heating check does the same work for winter. It verifies safe ignition, combustion. Controls before the first cold snap — not during it.

Between those two visits, the maintenance that matters most is yours. It is a single item: the filter. ENERGY STAR's checklist calls for checking the filter monthly. A clogged filter is the most common cause of problems you can prevent. Weak cooling, frozen coils, short run cycles. Overheated furnaces all trace back to it.

Hold to the schedule strictly if your system works hard. Long Texas summers, dusty homes, nearby construction. Several pets all load filters and coils faster. Systems in lighter use still need the yearly rhythm. Dust and drain slime build up whether you run the system or not.

Skipping rarely causes a dramatic breakdown on the skipped day. The cost is slower: small, cheap findings quietly become large, expensive ones. Twice a year, before the seasons that punish the system. That is the whole rule. Ask Texas Heat & Air what schedule, if any, the Home Comfort Maintenance Plan follows (Q69).

When to call a professional

Book a visit promptly. Do not wait for the season. If the system is noisy, leaking, icing, blowing weak air. Costing more to run than it used to. A seasonal visit is designed to catch those problems early. They do not get better with waiting.

What happens next

Pick the season you are heading into and book that visit: the cooling check-up (Q62) in spring. The heating inspection (Q63) in fall. At the visit you should receive written findings. What is fine, what to watch, and what needs repair. Any repair is quoted in writing and approved by you before work begins.

Texas Heat & Air next step

Spring and fall, before the weather turns. Call (682) 438-8127 to book the visit your season is about to need.

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