12 to 15 psi
The normal cold-fill pressure for most hot water boilers, while a reading near 30 means trouble.
Services

Boiler Repair & Service
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Cold rooms and lukewarm radiators are no way to spend a Kingston winter. Most of the time, the fix is a repair rather than a whole new boiler. KO HVAC repairs and services steam and hot water boilers around Kingston, so steady, quiet warmth comes right back.
Banging pipes, a climbing pressure gauge, or a puddle by the boiler usually point to one worn part. And the cast-iron boilers in many West Side homes, from Kingston to Forty Fort, are built to last decades. So the right repair often buys years of steady heat for far less than a new system.

12 to 15 psi
The normal cold-fill pressure for most hot water boilers, while a reading near 30 means trouble.
Under 2 psi
What most home steam boilers need to heat well, since higher pressure only wastes fuel.
1 alarm on every level
What safety experts recommend for carbon monoxide in homes with fuel-burning boilers.
Up to 95%
The heating efficiency of today's condensing boilers, for when a replacement finally makes sense.

A boiler usually hints at trouble long before the house goes cold. The sooner those hints get attention, the smaller the repair tends to be. Here's what to watch and listen for.
One radiator heats up while another in the next room stays cold to the touch. Trapped air, a stuck valve, or a pump that isn't moving water is usually to blame. In steam systems, a clogged air vent is a common cause too.
Steam pipes that bang or hot water pipes that gurgle are trying to tell you something. Water trapped in a steam line, or air caught in a hot water loop, is usually behind it. The noise can often be fixed without replacing anything.
A puddle under the boiler or a steady drip from a pipe needs attention soon. Leaks can come from a worn valve, a failing pump seal, or a cracked section. Catching it early protects your floors and the boiler itself.
On a hot water boiler, the gauge creeps past 25 psi, or the relief valve starts dripping. An overfilled system, a tired expansion tank, or a faulty fill valve is often the cause. If the gauge nears 30, shut the boiler off and give us a call.
The boiler clicks, tries to start, and gives up, or runs a few minutes and quits. Gas units often point to ignition or safety controls, while oil units point to the burner or nozzle. We test each part in order until the cause is clear.
The house feels the same, yet the fuel bill rises every winter. Soot, a dirty heat exchanger, or a burner out of tune makes the boiler burn more for less heat. A cleaning and burner adjustment often wins back that lost efficiency.

Most boiler repairs run about $150 to $750, while major parts can cost $1,000 or more. The part, the labor, and the system type move the price, whether steam, hot water, gas, or oil.
Our $99 diagnostic is billed on its own and finds what failed, then you approve a flat-rate price first. Smaller repairs can qualify for 0% financing for 12 months, with approved credit. Maintenance plan members also save on repair work.

Plenty of boilers are worth fixing, especially well-kept cast-iron models with years left. Others cost more to keep alive than to replace. Here's how we weigh the two, and you'll get clear pricing on both.
| Repair makes sense | Replacement is worth pricing | |
|---|---|---|
| Boiler age | Well kept, with plenty of life left | Old, with sections or major parts wearing out |
| The problem | A pump, valve, control, or small leak | A cracked section or failed heat exchanger |
| Efficiency | Still performing close to its rating | Burning far more fuel than a modern boiler |
| Repair history | First major problem in years | Repeat calls every heating season |
| How it's priced | $99 diagnostic, then a flat-rate price | A written estimate after an in-home visit |
| What you get | Your system back in working order | Up to 95% efficiency and fresh manufacturer coverage |

Boiler repairs and swap-outs fill our winters, so steam and hot water systems hold few surprises. Laars, Peerless, New Yorker, and most other brands are familiar territory for our crew. That experience shortens the hunt for what failed.
Your $99 diagnostic ends with a flat-rate price and a plain explanation of the fix. If a repair isn't worth your money, we'll say so. Nothing starts until you give the okay.
Before we leave, we run the boiler through a complete heating cycle. We also check the venting, the pressure, and the controls that keep it running safely. You'll know the house is warm and the system is sound.
Here's how a cold house turns cozy again.
Step 1
Pick Up the Phone
Call or book online, and describe what you're noticing. A cold radiator, a new noise, or a puddle all help us come ready.
Step 2
We Get to the Bottom of It
A technician checks the burner, pump, valves, pressure, and venting. The $99 diagnostic covers this visit, and you'll hear the findings in plain words.
Step 3
You Decide Before Anything Starts
You get a flat-rate price for the repair before any work happens. If replacement makes more sense, we'll show you why.
Step 4
Fixed, Cleaned Up, and Humming
We make the repair, then run a full heating cycle to confirm it's working. The work area gets cleaned up before we head out.

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Our line is answered 24 hours a day, so a cold house never goes unheard. Between 8 and 5, the office books the first open slot. After hours, maintenance plan members can get emergency repairs at an after-hours rate.
If a carbon monoxide alarm sounds or you smell gas, get everyone outside first. Call 911 or the gas utility from outside, then give us a call.
On a freezing night, let a faucet on an outside wall drip to keep water moving. A space heater can warm one room while you wait, kept clear of anything that burns.
Our boiler technicians cover the towns below every winter, starting from the shop in Kingston. Beyond them, service reaches homes across Luzerne, Lackawanna, and Wyoming Counties, within about an hour of Kingston.
Wherever the call comes from, you get the same $99 diagnostic and flat-rate repair pricing. Your street not listed? That's fine, since the office can check it in seconds.
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.
Boiler repair at KO HVAC starts with a $99 diagnostic visit to find the cause. After that, you get a flat-rate price based on the part, the labor, and the type of system. Nothing starts until you approve it.
Routine boiler service is priced flat-rate, so you know the cost when you book. It's usually far less than an emergency repair on a neglected system. Maintenance plan members also save on any repairs the visit uncovers.
Falling pressure usually means water is escaping somewhere. A small leak, a dripping relief valve, or a failing expansion tank are common causes. Have it checked soon, since low pressure can leave upstairs radiators cold.
Trapped air is the most common reason in hot water systems, and bleeding the radiator often fixes it. In steam systems, a clogged air vent or a pipe that's lost its slope can block the heat. A technician can balance the system so every room warms evenly.
Yes. KO HVAC repairs gas, oil, and propane boilers, in both steam and hot water systems. We work on Laars, Peerless, New Yorker, and most other major brands, including systems we didn't install.
Many common boiler parts are available locally, so plenty of repairs finish in one visit. Older or less common models sometimes need special-order parts. We'll tell you the timeline upfront and keep you posted until the part arrives.
A small drip isn't an emergency, but it shouldn't wait long. If the pressure gauge climbs toward 30 or water is pooling, shut the boiler off and call. If a CO alarm sounds, leave the house first.