A furnace tune-up costs $80 to $170 for a gas furnace and $100 to $200 for an oil furnace in 2026. Electric furnaces are on the lower end: $70 to $130. The national average across all furnace types sits around $100 to $150 for a standard residential maintenance visit.
That's the number. Here's what actually drives it up or down, and more importantly, what you should be getting for that money.
What a Furnace Tune-Up Actually Includes
A proper furnace tune-up is not a 20-minute "visual inspection" — or at least, it shouldn't be. When you're paying $80 to $170, here's what a legitimate preventive maintenance visit covers:
Combustion and safety checks:
- Inspect and test the heat exchanger for cracks (critical — a cracked heat exchanger can allow carbon monoxide into your living space)
- Check and adjust burner flame appearance
- Test carbon monoxide output with a combustion analyzer
- Test all safety switches and limit controls
Ignition and gas system:
- Inspect and clean the hot surface ignitor or check pilot light assembly
- Clean the flame sensor (a dirty flame sensor is one of the top causes of unexpected furnace shutdowns)
- Check gas pressure at the manifold
- Inspect the gas valve operation
Airflow and filtration:
- Inspect or replace the air filter (some techs include a filter, others charge separately — ask upfront)
- Check blower motor operation and amperage draw
- Inspect blower wheel for debris
- Measure supply and return air temperatures to verify heat rise is within spec
Electrical and controls:
- Test capacitor on the blower motor
- Inspect control board for signs of heat damage or failed relays
- Test thermostat calibration
Venting:
- Inspect flue pipe connections for corrosion, gaps, or improper slope
- Check the inducer motor on high-efficiency furnaces
- Inspect condensate drain on 90%+ AFUE units
Not every company does all of this on every visit. The difference between a $80 tune-up that takes 35 minutes and a $130 tune-up that takes 90 minutes is usually what's on this list. A flame sensor cleaning alone can prevent an emergency service call — and emergency calls run $150 to $350 just for the dispatch fee.
What Affects the Price
Furnace type. Gas furnaces are the most common and fall in the $80 to $170 range. Oil furnaces are more labor-intensive — the nozzle, filter, and heat exchanger all require more hands-on work — and cost $100 to $200. Electric furnaces have no combustion components, so the inspection is simpler: $70 to $130.
Your location. Labor rates in California, New York, and the Pacific Northwest run 20 to 30% higher than the national average. If you're in Phoenix, Dallas, or the Southeast, you'll generally pay toward the lower end of these ranges.
Time of year. This is the biggest variable most homeowners overlook.
A tune-up scheduled in September or October — right before heating season — costs the same or more than one scheduled in April or May. Fall is peak demand for furnace maintenance, and companies know it. You're competing with every other homeowner who had the same idea. Some companies charge a premium for fall scheduling; most are simply booked out weeks.
Schedule your furnace tune-up in spring or summer. The same visit that costs $130 in October often runs $90 to $100 in May, and you can usually get an appointment within a week instead of waiting three.
Maintenance agreements. Many HVAC companies offer annual service plans — typically $150 to $350 per year — that include one furnace tune-up and one AC tune-up, plus discounts on repairs and priority scheduling. If you stay in your home for more than a couple of years and want to stick with one company, these plans often pay for themselves in the discount alone.
Age and condition of the equipment. A 20-year-old furnace takes longer to inspect than a 5-year-old one. Parts may be harder to access, and the tech may flag additional items for follow-up. Some companies charge a higher base rate for equipment over 15 years old.
How Often You Need One
Once a year. Every year.
The manufacturer warranty on most furnaces requires annual professional maintenance as a condition of coverage. Beyond the warranty angle, annual tune-ups catch the small problems — a dirty flame sensor, a cracked flue connector, a failing capacitor on the blower — before they become emergency repairs on a cold night in January.
The math is straightforward: a $130 tune-up that catches a $200 ignitor problem before it fails costs you $330 total. An emergency service call for the same failed ignitor — after-hours, no heat, family calling — runs $150 to $350 for the dispatch fee before parts and labor. You're now at $500 to $700 minimum, plus the stress of arranging it on a weekday evening.
When to Schedule
Ideal timing: August or September, before the heating season rush. You'll have more scheduling options and can often get a better price than you would in October or November. Some companies run late-summer promotions specifically to fill their calendar before peak season hits.
If you missed the pre-season window, scheduling in early October is still better than waiting for something to break. If your furnace hasn't been serviced in two or more years, schedule it now regardless of the season.
Red Flags From Sketchy Contractors
The furnace tune-up market has some bad actors — companies that use the maintenance visit as a sales pitch for work you don't need. Here's what to watch for:
The "critical failure" on the first visit. A tech who finds a "cracked heat exchanger" or "failed heat exchanger" on a furnace that was working fine deserves serious scrutiny. Heat exchanger cracks do happen — they're legitimate safety issues — but they're also the most commonly cited fake finding in the furnace maintenance industry. If you're told your heat exchanger is cracked, ask to see it. Ask the tech to point out the crack with a mirror or borescope. Get a second opinion before spending $1,500 to $4,000 on replacement.
The 20-minute tune-up. A tech who's done in 20 minutes has not serviced your furnace. They've checked a few visual items and left. If the visit takes less than 45 minutes, ask what was included.
Upselling add-ons at the door. UV lights, duct cleaning, "whole-home air quality systems" — these may or may not be worth considering, but a tech who spends more time selling than servicing is not the tech you want.
No written report. Any legitimate maintenance visit should end with a written summary of what was inspected, what was found, and what was serviced. If you don't get a written record, ask for one.
Verbal-only pricing. Get a quote in writing before the work starts. A company that won't commit pricing to paper is not a company you want doing work in your home.
What to Ask Before Booking
A few questions that filter out the companies not worth your time:
- What exactly is included in the tune-up? (Get a list)
- Is the air filter included in the price or charged separately?
- How long does the visit typically take?
- Do you provide a written maintenance report after the visit?
- Is the diagnostic fee credited toward any repairs you find and I authorize?
That last question matters. A company that charges $130 for a tune-up and then discovers a $200 ignitor issue should credit the tune-up fee toward the repair. Some do, some don't — know this before you book.
If you want to compare quotes from licensed HVAC companies in your area, post a service request on HVACJobs.IO. Include your furnace brand, age, and whether you're looking for a one-time tune-up or an ongoing maintenance agreement. Local techs will respond with their pricing.
Frequently Asked Questions
How much does a furnace tune-up cost?
$80 to $170 for gas furnaces, $100 to $200 for oil furnaces, and $70 to $130 for electric furnaces in 2026. The national average across all types is approximately $100 to $150. Prices run higher in California, New York, and the Pacific Northwest.
Is a furnace tune-up worth it?
Yes, for most homeowners. Annual maintenance catches small problems — dirty flame sensors, cracking flue connections, weakening capacitors — before they become emergency repairs. It also satisfies manufacturer warranty maintenance requirements. The break-even point is basically one avoided after-hours service call over the life of the furnace.
What does a furnace tune-up include?
A proper tune-up covers the heat exchanger inspection, combustion analysis, flame sensor cleaning, ignitor check, gas pressure verification, blower motor inspection, air filter check, safety switch testing, and flue inspection. If the tech's checklist doesn't cover at least most of these items, you're not getting a full tune-up.
When is the best time to schedule a furnace tune-up?
August or September, before the heating season rush. Scheduling in late summer gives you more appointment availability, often lower prices than fall, and catches any issues while you still have warm weather as a buffer. Second best: spring, after heating season ends.
How often does a furnace need a tune-up?
Once a year, every year. Most manufacturers require annual professional maintenance as a condition of warranty coverage. Beyond the warranty requirement, yearly servicing is the single most effective way to extend furnace life and avoid mid-winter breakdowns.
Can I do a furnace tune-up myself?
Some items are DIY-accessible: replacing the air filter, clearing the condensate drain on high-efficiency units, and checking that the flue pipe connections are tight. However, combustion analysis, heat exchanger inspection, gas pressure checks, and electrical component testing require tools and training. For a complete tune-up, hire a licensed technician.