Guides / HVAC Maintenance Checklist: What Pros Do at a Tune-Up

HVAC Maintenance Checklist: What Pros Do at a Tune-Up

Heating and cooling is the most expensive system in most homes — and the one that fails on the worst possible day. Here's what real maintenance covers, what it typically costs, and which parts you can handle yourself.

1. Replace the filter

Every 1–3 months for 1-inch filters; thicker media filters last 6–12 months. A clogged filter is the #1 cause of avoidable HVAC service calls.

2. Clear around outdoor equipment

Keep 2 feet of clearance around the condenser; rinse the coil fins gently with a hose (power off) when they collect cottonwood or grass clippings.

3. Professional cooling tune-up (spring)

A tech checks refrigerant charge, capacitor health, coil condition, drain line, and amp draws — the failures that strand you in July are usually visible in April.

4. Professional heating tune-up (fall)

Combustion analysis, heat exchanger inspection (a safety item — cracks leak carbon monoxide), igniter and flame sensor cleaning, and gas pressure checks.

5. Keep the record

Model, serial, refrigerant type, and every service date. Warranty claims and resale both hinge on being able to prove maintenance happened.

Common questions

How often should HVAC be professionally serviced?Twice a year — cooling in spring, heating in fall. Many manufacturers require documented annual service to keep parts warranties valid.

What does an HVAC tune-up cost?Typically in the $75–$200 range per visit in the US, varying by market and system type. Repair visits cost multiples of that — maintenance is the cheap option.

How long does an HVAC system last?Roughly 15–20 years for furnaces and 10–15 for air conditioners, with documented maintenance meaningfully extending both.

Part of the complete home maintenance schedule.

Track this in HOGER — your home's verified service ledger