HeatingA 40-point checkup to get your furnace ready to stay warm all winter. Normally $129.95.
Terms & conditionsCoupon must be presented at the time of service. Cannot be combined with any other offers or coupons.

Get your furnace ready before the first cold snap. Our 40-point tune-up and safety check helps prevent breakdowns, lowers heating bills and can extend the life of your heater.

Fall is the best time to have a certified technician clean, test and adjust your furnace. A yearly tune-up catches small problems while they're still small, so your heat is there on the coldest night of the year.
Our techs are career HVAC professionals, and every tune-up is backed by our 100% satisfaction guarantee. We tune up furnaces, boilers and heat pumps, all makes and models, across Chicagoland and Northwest Indiana. See our service areas.
Gas furnaces especially should be checked every year. Beyond efficiency, a tune-up is a safety check on the burner, gas connections, heat exchanger and exhaust.
HeatingA 40-point checkup to get your furnace ready to stay warm all winter. Normally $129.95.
Terms & conditionsCoupon must be presented at the time of service. Cannot be combined with any other offers or coupons.
What our fall furnace tune-up covers, and why it’s worth doing before winter.
$99 40-point furnace tune-up
Here's some of what your technician checks, cleans and adjusts on every furnace tune-up.
| Area | What we do |
|---|---|
| Venting & exhaust | Examine the vent system and test the exhaust system |
| Burners & ignition | Inspect and clean the burner, test the ignition system, inspect the thermocouple |
| Gas & safety | Check gas connections, test system safety controls, examine the heat exchanger |
| Electrical | Check voltage and inspect electrical connections |
| Airflow | Inspect the air filter, adjust blower components, lubricate motors |
| Controls | Calibrate the thermostat for accurate, efficient heating |

Preventative maintenance is the cheapest way to keep a furnace running right.
Minor issues get caught and fixed before they turn into a no-heat call.
A clean, adjusted furnace uses less energy to heat your home.
Less wear and tear on parts means more years out of your system.
Annual professional maintenance may keep the manufacturer's warranty intact.
Most tune-ups take about 1–2 hours, depending on the system's age, condition and when it was last serviced.
Book before winter arrives. We'll set a date and time for a certified tech to visit.
You'll hear from us when your tech is 10–15 minutes out. They arrive in a marked King vehicle.
Your tech answers your questions, then looks for any issues that should be fixed before the tune-up.
A thorough checklist that covers the key points of your system so it's ready for winter.
A final checklist, a check that your furnace heats as expected, and a calibrated thermostat.
If your tune-up turns up a problem, your technician will explain it and recommend a repair or replacement. You decide. See all heating services.

No heat? We offer 24/7 furnace repair across Chicagoland and Northwest Indiana.
Furnace repair
New Carrier furnaces, heat pumps and boilers, with a free in-home estimate.
Furnace installation
Boiler repair, fall maintenance and replacement.
Boilers & radiant heat
Royal Treatment members save 20%Members get two maintenance visits a year, one for heating and one for cooling, scheduled automatically. Plus priority emergency service and 20% off repairs.
Mention the coupon when you book. Coupons must be presented at the time of service and can't be combined.
HVAC repair$50 offany HVAC repairWhen you choose King to repair your furnace or air conditioner, you'll enjoy $50 off our service.
Terms & conditionsCoupon must be presented at the time of service. Cannot be combined with any other offers or coupons. Offer only valid on repairs greater than $200.
New systemFreeestimate on a new AC or furnaceFree estimates for anyone in need of a new AC or furnace system. Know your price before you decide.
Terms & conditionsSome restrictions may apply. Call for more details.
Straight answers from King's technicians.
HeatingReal steps to get your system ready for fall without being pressured into a replacement.
Read the guide
HeatingHow maintenance lowers the risks of a gas furnace.
Read the guide
HeatingEasy ways to delay replacing your furnace.
Read the guide