How to get the heating system tuned up
Book a furnace tune-up or other heating check every autumn, ahead of cold weather. A technician should check gas or oil connections, gas pressure, burner combustion and the heat exchanger, along with controls and electrical parts. A basic visit costs about $75 to $250, and more if repairs turn up.
What a furnace tune-up covers
The fall visit is the one that protects you as well as the equipment, because a heating system burns fuel inside your home. ENERGY STAR's checklist for heating covers gas or oil connections, gas pressure, burner combustion and the heat exchanger. CPSC adds that a yearly inspection should include chimneys and flues, checking for blockages, corrosion and loose or disconnected sections.
The technician should also tighten electrical connections, measure motor voltage and current, lubricate moving parts and run the startup cycle to confirm safe starting, operation and shutoff.
| Your system | Ask the technician to focus on |
|---|---|
| Gas or oil furnace | Burner, heat exchanger, fuel connections, flue |
| Boiler | Burner, fuel connections, flue, controls |
| Heat pump | Controls, electrical parts, airflow, condensate drain |
Gas leaks and cracked exchangers are never DIY repairs. If you smell gas, leave and call 911 or your gas utility from outside.
Furnace tune-up cost
| Service | About what it costs | Notes |
|---|---|---|
| Basic tune-up | $75 to $250 | Filter change, visual inspection, basic cleaning |
| Service call with diagnostics | $90 to $450 | Testing and a performance check |
| Comprehensive service | $150 to $400 | Cleaning and calibration |
| Service call fee | $60 to $120 | Added to diagnostic or repair charges |
These 2026 national estimates come from Pick HVAC, which doesn't break out prices for furnaces, boilers and heat pumps. Ask for a price for your specific system. Repairs are always extra.
How to choose a company for a heating tune-up
- Pick a company that works on your fuel type. Oil, gas and heat pump service are different skills.
- Check the license with your state board. Rules vary by state.
- Ask if the visit includes a combustion check. Some low-price visits don't.
- Call in late summer or early fall, ahead of the first cold snap, when schedules tend to fill up.
Questions to ask during a furnace tune-up
- Did you inspect the heat exchanger? What did you see?
- Is the flue sound and properly connected?
- Is combustion working correctly, and can I see the readings?
- Is my CO alarm placed correctly?
- What should I watch for this winter?
Red flags during a heating tune-up
- A "cracked heat exchanger" claim with no photo, reading or written finding. Ask to see it, and get a second opinion before replacing the system.
- A visit that ends with no mention of the flue or combustion.
- A safety warning used to push a same-day sale.
- A technician who calls the system unsafe but leaves nothing in writing.
If a technician red-tags your system as unsafe, don't run it until a qualified pro has fixed it. CPSC says the same of any appliance suspected in a CO alarm.
How to get ready for fall furnace maintenance
- Book early
Call in September or October, before the busy season, and ask for a visit during a weekday if you can be home.
- Swap the filter first
Put in a clean filter so the technician sees normal airflow. ENERGY STAR says to check filters monthly.
- Test the alarms
Press the test button on your CO alarms. CPSC wants one on every level and outside sleeping areas.
- Run the heat once
On a mild day, turn the thermostat up and listen. A short burnt-dust smell is common on a first run; report anything that lingers.
- Clear space around the unit
Move boxes and stored items away so the technician can reach it and air can flow.
- Keep outside vents open
Check that vents are free of debris now, and again after snow. USFA says vents should stay clear.
- File the report
Save it with last year's so you can spot a pattern.
When to service your furnace, and other questions
When should I get my furnace serviced?
ENERGY STAR recommends the heating check in fall, before the busy season. The fall clock change makes an easy yearly reminder if you can book a little ahead of it.
How much does a furnace tune-up cost?
About $75 to $250 for a basic visit, based on 2026 national estimates. Boilers, older units and hard-to-reach equipment can run higher, and repairs are extra.
Does a heat pump need a fall tune-up too?
Yes. ENERGY STAR's list applies to heat pumps, and they work for both heating and cooling. Ask your technician how often yours should be serviced.
Sources: ENERGY STAR, pickhvac.com, CPSC, U.S. Fire Administration
General guidance for U.S. homes, not professional advice. For gas, electrical and structural work, call a licensed pro.