2025
New central air systems switched to lower-impact refrigerants, such as R-454B, under federal rules.
Services

Air Conditioning Installation
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The secret to an AC installation that lasts is fit, more than anything else. A new air conditioner performs only as well as it fits your home, from its size to its ductwork. So KO HVAC begins every AC installation and replacement by studying the whole house, not the old unit.
Most complaints after a new install trace back to a few misses. The common ones are a unit sized off the old label, cramped ducts, and a drain line that can't keep up. In older homes around Kingston, ductwork was often built for a furnace, and cooling needs more air moving through it.

2025
New central air systems switched to lower-impact refrigerants, such as R-454B, under federal rules.
13.4 SEER2
The lowest efficiency rating a new split AC can carry in Pennsylvania since 2023.
1 day
The usual time to swap out a standard central air system, from removal to the final test run.
10 years
Carrier's parts coverage on the new central air systems we install.

Most central air systems start slowing down after about 15 summers. They rarely quit on a mild day, though, since peak heat puts the most strain on worn parts. Spot these signs early, and you can replace yours on your own schedule, not in a heat wave.
Each fix buys another season, but the bills add up fast. When the compressor and fan motors wear out together, the repairs rarely stop. At that point, the money works harder in a new system.
That refrigerant hasn't been made since 2020, so every recharge draws from a shrinking, pricey supply. On an aging system, a single leak can now cost more than it's worth to fix.
If the upstairs bakes while the first floor feels fine, the system may be too small for the house. Ducts built for a furnace can also starve those rooms of cold air.
The air feels cold, yet the house stays sticky. An oversized unit cools too fast and shuts off before it pulls moisture out, so rooms feel cold and damp.
You haven't touched the thermostat, but the electric bill keeps rising. Older systems lose efficiency every year, so they run longer and longer to deliver the same cooling.
A compressor that draws too much power at start-up is often near the end of its life. Switch the system off and call us before you try it again.

A new central air system typically runs about $5,000 to $12,000. High-efficiency systems often reach about $14,000 or more. System size, efficiency, and any duct or wiring changes decide where your home lands.
KO HVAC visits your home, checks the ductwork and electrical, and gives you a written quote to approve first. Since that quote sets the exact price, nothing gets ordered until you say yes. New installs can qualify for 0% financing for 36 months, with approved credit.

More stages mean a higher price, and they aren't always worth it. A single-stage system suits plenty of smaller homes. We'll match the type to your house and budget, then price each option you're weighing.
| Single-stage | Two-stage | Variable-speed | |
|---|---|---|---|
| How it runs | Full power or off | A low setting for mild days, full power for hot ones | Adjusts in small steps to match the heat |
| Humidity control | Basic | Better, thanks to longer, gentler cycles | Best, since it runs low and steady |
| Noise | Loudest at start-up | Quieter on the low setting | Quietest of the three |
| Upfront cost | Lowest | Middle | Highest |
| Best for | Smaller homes and tighter budgets | Most two-story homes | Homes that want even temperatures and quiet |

We measure the rooms, check the insulation and windows, and look at how air moves through your ducts. When the ducts fall short, our in-house sheet-metal shop builds new sections to fit. That way, every floor gets its share of cold air.
Your estimate comes in writing, with more than one system whenever your home allows it. You'll see how each one differs, from humidity control to running costs, with no pressure to pick the priciest. Financing at 0% for 36 months, with approved credit, can spread out the cost.
As a Carrier dealer, we install central air systems with 10 years of parts coverage. We stay your first call for anything the new system needs later. Our maintenance plan keeps it tuned each year, and members save on repair work down the road.
From the first walk-through to the first cool night, a replacement runs in four stages.
Step 1
We Walk Through Your Home
Set up a visit by phone or online. We check the rooms that run hot, the ductwork, the electrical panel, and where the old unit sits.
Step 2
You Compare, Then Decide
Your estimate lays out each system, its price, and the financing in plain terms. Take the time you need, because nothing gets ordered until you decide.
Step 3
Out With the Old, In With the New
Our crew removes the old unit and recovers its refrigerant, as EPA rules require. Then we set, connect, and seal the new system, cleaning up as we go.
Step 4
We Hand Over the Controls
We run a full cooling cycle and check the airflow at your vents. Then we show you the thermostat, the filter, and what your warranty covers.

Get My Quote
Call any time, day or night, and a person takes down what happened. During office hours, 8 to 5, we book your in-home estimate at the first open slot. Maintenance plan members can also get emergency repairs after hours, at an after-hours rate.
If the unit can hold on a few more weeks with a small fix, we'll tell you what it costs. That way, you can compare new systems with a clear head instead of a hot one.
Run the kitchen and bath fans to pull humid air out, and keep lamps and the dryer off in the afternoon. Give pets and older family members the coolest room.
Kingston is home base, and the towns below are where we install and replace air conditioners most. We also install across Luzerne, Lackawanna, and Wyoming Counties, reaching most homes within an hour of Kingston.
Whatever your ZIP code, you get a walk-through, a written estimate, and an install done with care. Living a little farther out? Tell us your town, and we'll confirm the trip before we book.
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.
Three things drive most of the cost: the system's size, its efficiency rating, and the work around it. Duct changes, electrical upgrades, and a new indoor coil can all add to the total. KO HVAC puts every AC installation estimate in writing after an in-home visit.
Square footage is only the starting point. Insulation, windows, sun exposure, ceiling height, and your ductwork all change the answer. We look at each one during the in-home visit, so the size of your new system isn't a guess.
Not always. The indoor coil usually gets replaced with the outdoor unit, because the two must match to work and keep their warranty. Whether the furnace stays depends on its age and blower. We check both during the estimate and tell you plainly.
It depends on how long you'll stay and how hard your AC works each summer. Higher SEER2 ratings, which measure cooling efficiency, lower your electric bills. For many homes here, a mid-range system gives the best return. We'll show you the numbers for each option.
New central air systems now use lower-impact refrigerants, such as R-454B, after federal rules phased down R-410A. Older systems may still run on R-410A or R-22. R-22 is no longer produced, which is why older units cost so much to recharge.
Yes. New installs can qualify for 0% financing for 36 months through Wells Fargo or Synchrony, with approved credit. Ask about it during your in-home estimate, and we'll walk through the options with you.
Carrier backs the new central air systems we install with 10 years of parts coverage. Before the crew arrives, we explain what your system's coverage includes and what keeps it active. If a covered part fails, we handle the repair.