1 to 3 months
How often most 1-inch furnace filters need changing, since a clogged one can shut the furnace down.
Services

Furnace Repair
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When the house goes cold overnight, you want the heat back soon and an honest reason it stopped. KO HVAC repairs gas and oil furnaces in Kingston, PA, starting with a $99 diagnostic that finds the cause. You hear what failed and what it costs before we touch a thing.
Most calls start with cool air from the vents, a furnace that won't light, or one that quits too early. Past the gas lines in the Back Mountain, many homes still burn oil, and colder winters there wear burners faster. So we repair both fuels, and every visit ends with a full heating cycle test.

1 to 3 months
How often most 1-inch furnace filters need changing, since a clogged one can shut the furnace down.
3 failed starts
The number many gas furnaces allow before locking out for safety, so repeated resets rarely help.
1 cleaning a year
What most oil burner makers call for, since soot makes the furnace burn more oil for less heat.
15 to 20 years
The typical life of a furnace, so past 15 it pays to price both repair and replacement.

A furnace usually struggles for a while before it quits. Catching the problem at the first symptom keeps the repair small and the house warm.
The blower runs, but the air coming out feels cool. On a gas furnace, a dirty flame sensor or an ignition fault often shuts the burners off. On oil, a clogged nozzle or filter can starve the flame.
You hear the furnace try to start, yet it never lights. A worn igniter or a faulty gas valve is the usual cause on gas units. Oil furnaces often point to the burner's ignition parts or its motor.
The furnace runs a few minutes, then stops long before the thermostat is satisfied. A clogged filter can make it overheat and trip a safety switch. A failing sensor or thermostat can also cut each cycle short.
Black streaks near the burner, a smoky smell, or a thump when it lights are oil furnace warnings. They usually mean the burner is out of tune or overdue for cleaning. Shut it off and call, since a puffback can spread soot through the house.
A bang when the furnace lights, or a squeal from the blower, means something needs attention. Delayed ignition, a worn belt, or a failing motor is often behind it. Fixing it early keeps a small part from damaging a bigger one.
On a gas furnace, the flame should burn mostly blue, not a lazy yellow. A yellow flame or a carbon monoxide alarm means the fuel isn't burning cleanly. Get everyone outside, call 911 from there, then call us.

Most gas and oil furnace repairs in Kingston run about $150 to $650. A cracked heat exchanger costs more, at about $1,000 to $3,000. The part, the labor, and the fuel type set where your repair lands.
Our $99 diagnostic is billed on its own and finds the cause, then you approve a flat-rate price first. Smaller repairs can qualify for 0% financing for 12 months, with approved credit. If the furnace is near the end of its life, we price a replacement in writing too.

A furnace under 15 years old with one failed part usually deserves a repair. One past 20 with a cracked heat exchanger doesn't. We weigh the age, safety, and repair cost, then price both options so you can compare.
| Repair usually makes sense | Replacement is worth pricing | |
|---|---|---|
| Furnace age | Under about 15 years | Approaching or past 20 years |
| The problem | An igniter, sensor, blower motor, or burner tune-up | A cracked heat exchanger or failing control board on an old unit |
| Safety | Burns clean once repaired | Ongoing carbon monoxide or venting concerns |
| Fuel bills | Steady from winter to winter | Climbing, even with regular service |
| Repair history | First major problem in years | A service call every heating season |
| Fuel choice | Staying with the fuel you have | A chance to move off oil to gas or a heat pump |

Gas furnaces and oil burners fail in different ways, and our technicians repair both all winter. You get one company, whichever fuel your house runs on. You also get a straight answer when switching fuels makes more sense.
Before quoting, we weigh the furnace's age, safety, and repair history. A pricey fix on a 22-year-old furnace rarely makes sense, and we'll say so. You get a flat price and a plain recommendation, then the call is yours.
Every repair ends with a full heating cycle and a look at the flame and venting. On oil units, we also check for soot and smoke. You'll know the furnace is running safely before we head out.
Here's what a furnace repair visit looks like from start to finish.
Step 1
Reach Out and Describe It
Call or book online, and let us know whether the furnace is gas or oil. Mention any sounds, smells, or blinking lights, and we'll set a visit time.
Step 2
A Full Diagnostic Visit
A technician checks the ignition, airflow, burner, and controls. The $99 diagnostic covers the visit, and you'll hear what failed in plain words.
Step 3
The Price, Then Your Call
You get a flat-rate repair price before any work starts. If replacement is the smarter spend, we'll show you why and price it too.
Step 4
Warm Air, Tested and Tidy
We make the repair, run a full heating cycle, and check the flame and venting. Then we clean up and show you what we fixed.

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A person answers our line 24 hours a day, so a cold house never goes unheard. From 8 to 5, the office books you into the first open slot. After hours, maintenance plan members can get emergency repairs at an after-hours rate.
Make sure the thermostat is set to heat and the furnace switch is on. Swap a clogged filter. On oil, check that the tank isn't empty, and press the reset button only once.
If you smell gas or see smoke, get everyone outside first. Call 911 or your gas utility from outside. Don't flip switches or try restarting the furnace.
Our technicians cover river-level streets in Kingston and the higher, colder ground around Dallas and Mountain Top. Beyond the towns below, we repair furnaces in homes across Luzerne, Lackawanna, and Wyoming Counties, within about an hour of our base in Kingston.
Every town gets the same $99 diagnostic and flat-rate repair price. The list covers the towns we visit most, not every one we reach.
Luzerne County
Lackawanna County
Wyoming County

The technician Lenny they sent out was extremely professional, knowledgeable and clean. He assess the situation, determined tge issue got it fixed in no time. I highly recommend them
Anthony J.
Great service on our home’s system! The technician found a failing capacitor and replaced it same day. I appreciated the thorough troubleshooting and clear explanation of the repair. Very happy with the work and would definitely recommend them!
Jason R.
The man was excellent, he checked the whole system gave me advice and wasted no time , i would recommend your comp any to anyone, any time i need a tech i I’m calling you guys TY
Thomas H.
KO HVAC did a great job changing my house from electric heat to natural gas forced hot air with AC. Cody and his team were wonderful to work with. Highly recommended.
Aaron H.
It was a pleasure to work with KO hvac. From the moment of making the initial call and getting set up, to the day of service it was a very smooth process. The communication was on point which is always greatly appreciated. Thanks Len!
Steven S.
Caleb was punctual and very professional and knowledgeable. Thanks!
Matt B.
Great service. Will definitely have them do all my hvac needs.
Mary N.
Caleb was professional & knowledgeable of the issues I had with my furnace.
Ray B.
This is an extremely professional group who does excellent work. They replaced our entire HVAC system and later added additional duct work. Incredibly smooth process from start to finish. Communication was excellent. Their crew was on time, professional and courteous. Highly recommend.
Ed B.
Steve and Caleb both very knowledgeable and good to deal with. Had an issue finding a leak in the system and they were able to find the problem. HIGHLY recommend.
Karen N.
Furnace repair at KO HVAC starts with a $99 diagnostic visit, for gas and oil furnaces alike. After we find the cause, you get a flat-rate price based on the part and labor. Nothing starts until you approve it.
On gas furnaces, a dirty flame sensor, a failed igniter, or a clogged filter are the usual causes. Oil furnaces often have a clogged nozzle or an empty tank. Check the filter and thermostat first, then book a diagnostic if the air stays cold.
Yes. KO HVAC repairs oil furnaces as well as gas and propane models. Oil work includes nozzle and filter changes, ignition repairs, and burner cleaning. If an oil system keeps costing you, we can also price a switch to gas or a heat pump.
Once. If the burner doesn't start after one press, leave it alone and call. Pressing it again and again can pump extra oil into the chamber, which makes the next start unsafe.
A clogged filter that lets the furnace overheat is the most common cause. A dirty flame sensor, a thermostat problem, or blocked venting can also cut cycles short. Replace the filter first, and call if the problem keeps coming back.
That depends on the age and the part. A single repair on a furnace under 15 years old is usually worth it. Past 20 years, or with a cracked heat exchanger, replacement is the safer choice. We'll price both for you.
Yes. KO HVAC repairs most major gas and oil furnace brands, whoever put them in. Just describe the problem when you call; the technician identifies the model during the visit.