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Boiler Installation for the Quiet Warmth Hydronic Heat Delivers

Nothing heats a home the way a well-installed boiler does.

Ready for a new boiler? Princeton Air has been installing hydronic heating systems across New Jersey for more than 50 years. Our NATE-certified technicians handle gas and oil boiler installations from sizing through startup, with permits and inspections included as standard.

You get a system that runs quiet, heats evenly, and holds steady through the coldest winter nights. Call us today for a free estimate.


Need Boiler Installation? Princeton Air Is in Your Neighborhood

Many of the boilers still running across New Jersey were installed decades ago.

Many of the boilers still running across New Jersey were installed decades ago, and modern equipment burns less fuel at higher efficiency.

Homeowners in Princeton, Lawrence Township, Hopewell, and Pennington have worked with us to replace aging boilers with high-efficiency systems. Each installation is shaped by the existing distribution and how the household uses heat.

(609) 799-3434

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What to Expect From Your Boiler Installation

A boiler project should feel organized and clear for you, even when the work itself is involved.

Here’s how the experience goes.

Your NATE-certified technician comes to the house and reviews the existing boiler, the near-boiler piping, the venting path, and the condition of your radiators or radiant loops.

You share how the current system has been performing and where the household feels cold. The recommendation comes from what your home actually needs.

Boiler work touches gas, venting, hydronic piping, controls, and sometimes electrical. Your licensed team coordinates all of it, protects the spaces we pass through, and handles the permits and inspections as part of the job.

Before anyone leaves, combustion is verified with analyzer readings, water flow is confirmed through every zone, and the controls are tested. You get a walkthrough of the thermostat and the system, and you know what the boiler should sound and feel like on a normal winter day.

Your relationship with Princeton Air doesn’t end at the install. You have a local team with more than 50 years of experience installing and maintaining boilers across the region, and we’re the ones you call when anything comes up. Annual service is what keeps a high-efficiency boiler hitting its rated efficiency year after year.

(609) 799-3434


What Our Customers Are Saying

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4.7
Based on 6435 reviews
Dominic M. And Christian were great honest, thorough, and very professional. We just moved into our new home and are thrilled to have started a maintenance membership with this company. The experience was smooth and reassuring from start to finish. Highly recommend!
Jason was very polite and professional and helpful, kind and willing to listen and share his experienced skills.
Erim is a talented plumber! He fixed my shower faucet with new parts which was very complicated. He was the only one who could do it. Thank you Erim!
Mike G is, without question, the best plumber I have ever had the pleasure of working with. His meticulous attention to detail and exceptional craftsmanship set him apart from anyone else in his field. Beyond his technical expertise, Mike brings a level of professionalism and knowledge that immediately inspires confidence. I highly recommend both Mike G and Princeton Airโ€ฆ you will not be disappointed.
Princeton Air replaced AC in my HVAC unit during heat wave last week, and they did an excellent job. I would like to mention that staff who did the install, Jeff, Don and Brian. They worked fast and did so in a very professional manner. They wore shoe covers and laid down canvas cover to protect the carpet on their way to the HVAC unit in the basement. I was very happy with the service they provided.
I had a great experience with Princeton Air. I had an issue with a part of my healer leaking. Within an hour of calling about this problem, Dylan, the technician, arrived at my house. He soon identified the problem. The next day 3 technicians came back and replaced the faulty part.
Technician was professional and helpful. He was prompt.
Neim is an excellent technician. He is very knowledgeable, thorough and pleasant. We are very pleased. Thank you!
Always prompt response and excellent service. We've had two different technicians and both were excellent!
Prompt excellent service. Ryan takes the time to explain what and why needs to be done to maintain optimum HVAC performance. Iโ€™m really happy when Princeton Air sends Ryan to our home!
Norman is very good at his job! He comes in listens and FIXES on the first visit! I couldnโ€™t be happier with the service he provided! Shout out to Norman
Great customer service. Dominic was very knowledgeable!
Brian H. was the name of the employee who came to assess the problem. He was very professional, took our problem seriously (electrical issue), and worked hard to diagnose the cause. I would thoroughly recommend Brian H and Princeton Air. I quickly booked online, received confirmation texts, email and calls. Very satisfied customer.
Dominic was a pleasure to deal with. I would recommend his services without hesitation.
Installed new furnace and thermostat
Very professional and addressed all my concerns
We recently had a new AC system installed after our 16 year old system cried "uncle!" We have been a customer of Weltman, now Princeton Air, since we moved into our home and over the years we have had mixed feelings about the service and price we paid. Our recent experience, however, was all positive. From the initial technician call to see what our issue was by Cruise, to the the evential sales visit with Andre, to the final installation by Asterson and his team, everyone was professional and dilligent about all aslects of the job. Each took the time to explain our situation, provide us with options, and more importanly, not pressure us into anything we did not want to do. The electrucuan, Joe, discovered an unsafe electrical connection, disabled it, explained the issue and why it was problematic, and provided us with a quote to bring it into compliance and make our home safe. All in all, though we were not anticipating the need to have our AC system replaced, I am glad it is done and very happy with how it all turned out. I am happy to recommend PA and will be making a call to have our electrical issue resolved!
Jose was very professional. I definitely recommend and give 5 stars to this company
All communication with the office was excellent. The electrician Brian who did the work explained the issue, the process of the repair and the new work beyond my expectations.
Dominic McGinley is a TOTAL professional! He is so knowledgable and takes the time to answer all of our questions. He is also a delight to work with. Thank you, Dominic, you have our total confidence and we appreciate the care you put into what you do.
Dominick McGinley is a TOTAL professional! He is so knowledgable and takes the time to answer all of our questions. He is also a delight to work with. Thank you, Dominick, you have our total confidence.
Thrilled to have a proper quick connect hose for the gas line going to our outdoor grill. Appreciate the friendly, fast and efficient service!
Sarabjeet T. was terrific. Installed a new smart thermostat that required some troubleshooting and patience. Answered all my questions. Friendly, knowledgeable, careful, patient. Thank you for the great service.
Alberto was very professional and did a great job.
Dominic was extremely pleasant, professional, and thorough,. He was also quite efficient. He quickly diagnosed the situation and was able to correct it. He also took the time to patiently explain my thermostat to me. Then he signed me up as a member. So heโ€™s a pretty good sales guy too!
However, I then set up an appointment for maintenance and twice Princeton Air canceled me. Iโ€™m now set up for maintenance the end of June. And thatโ€™s after they tried to set me up the end of July and I complained.And this is after Dominic signed me up as a member. Thereโ€™s something very wrong with her business model and I do not consider this good customer service. I will likely have to look for a different service. And itโ€™s something more responsive.
Luis took time to explain things to me and was very knowledgeable about the equipment.

(609) 799-3434

Signs Your Boiler Is Ready for Replacement

Boilers usually announce their retirement quietly, through the fuel bill or the comfort of the house.

Recognizing the signals early lets you plan the replacement for a mild week in fall instead of a cold snap in January.

Older boilers lose efficiency gradually. The heat exchanger scales up, controls drift off calibration, and the combustion no longer burns cleanly. A system from the 1990s typically runs at 70 to 80 percent efficiency, and some older oil boilers run far below that. Modern condensing boilers regularly deliver 90 to 95 percent efficiency, which translates directly into fuel savings every month of the heating season. Over a New Jersey winter, that difference adds up to real money.

A boiler that fires, runs for a few minutes, shuts off, then fires again is short-cycling. It’s either oversized, poorly controlled, or both. Short-cycling wears out components and burns fuel inefficiently, and it’s one of the most common problems in older boiler systems. A correctly sized replacement runs longer and steadier, which is how a hydronic system is supposed to work. The comfort improvement through the house is immediate.

Cold rooms at the far end of the distribution, or zones that simply can’t hold temperature during a cold snap, often point to a boiler that can’t deliver the water temperature it needs to. In some cases, the distribution system also needs work the old boiler masked with brute force. A full installation addresses the boiler, the near-boiler piping, and the controls together. The heat finally reaches the rooms that have been cold for years.

Visible rust on the boiler, damp connections, or water pooling near the unit all signal that the heat exchanger or the piping is failing. Once internal corrosion sets in, the timeline to full failure is unpredictable. Replacing on your schedule is almost always better than a mid-winter failure when every heating contractor in the region is booked solid. The cost difference between planned and emergency replacement is significant.

Cast iron boilers from the 1980s and 1990s can run for 30 years or more, but their efficiency was never great and their fuel consumption compared to modern equipment is meaningful. If your boiler is past the 20-year mark, a replacement often pays back the investment through fuel savings alone across its life. Modern high-efficiency boilers also qualify for substantial New Jersey Clean Energy Program rebates and federal tax credits, which shift the economics in your favor. We walk through current incentives during the consultation.

Why New Jersey Homeowners Return to Princeton Air for Boiler Installation

Hydronic heating is specialized work that rewards real experience.

For more than 50 years, homeowners across the region have brought their boiler projects to Princeton Air.

Every boiler installation is handled by NATE-certified technicians who know combustion, controls, and distribution. Hydronic work isn’t the same as forced-air work, and the team that installs your boiler treats it that way.

High-efficiency condensing boilers require specific venting, condensate handling, and near-boiler piping to hit their rated efficiency. Cutting corners on any of these shortens the unit’s life and costs you the savings you paid for. Our installations follow the practices that make the equipment work.

Boiler installations require permits in most New Jersey municipalities, and inspections are part of the process. We pull the permits, schedule the inspections, and make sure the job passes before we consider the project closed.

From Trenton and Hightstown to Summit and New Providence, we’ve installed boilers in homes of every era. That range shapes the decisions we make about sizing, piping layout, and control strategy.

Oil to gas conversions, condensing versus conventional, combi versus indirect: the choices add up, and not every answer is the same for every home. We walk through the options with real numbers and no pressure.

The New Jersey Clean Energy Program, utility rebates through PSE&G and JCP&L, and federal tax credits through the Inflation Reduction Act can reduce the net cost of a high-efficiency boiler meaningfully. We help you capture what’s available.

The work we do on installation day is the work you’ll live with through many winters. We stand behind it, and we’re the team you call when anything needs attention.


Join the Princeton Air Home Comfort Club

Taking care of your home is easier when someone is taking care of it with you.

The Princeton Air Home Comfort Club is a whole-home membership built around four pre-scheduled maintenance visits each year, so the systems you rely on stay in peak condition through every season.

Members receive a discount on service work, credits toward future installations, priority scheduling during the busiest times of year, no dispatch fees when work is performed, and our 24-hour emergency service guarantee. It’s the simple way to protect your home, your budget, and your routine year after year.

Princeton Air Technician


(609) 799-3434

Complete Home Services For Your Home

A boiler installation often connects to adjacent heating and plumbing work.

Hydronic heat is one side of a home’s comfort. The cooling system, the indoor air, and the long-term service of the equipment all shape how your home feels across the year.

When your existing boiler needs diagnostic work or a repair, our team handles it with the same care we bring to installation. Catching a small issue early keeps it small.

Annual service is how a boiler hits its rated efficiency and lifespan. Routine attention turns a system that might have lasted 10 years into one that lasts 15.

Clean, filtered, balanced indoor air is part of a comfortable home. Whole-home filtration, humidification, and UV purification keep the air you breathe as conditioned as the temperature you set.

Princeton Air installs and services every major type of residential cooling system, from central air to heat pumps to ductless mini splits. One team for summer and winter.



Schedule Your Boiler Consultation

A properly installed boiler changes how a home feels through the coldest months.

If your current system is aging, short-cycling, or pushing your fuel bills higher every year, our NATE-certified technicians will walk the home, lay out real options, and install a replacement built to serve you for decades.

Call Princeton Air today to schedule your consultation.

Princeton Air Technician


Boiler Installation FAQs

Should I replace my boiler with a high-efficiency condensing model?

Often yes, but not always. High-efficiency condensing boilers save meaningful fuel across a New Jersey winter, but they require specific venting, condensate handling, and sometimes updated near-boiler piping. For some homes and installation situations, a conventional non-condensing boiler is the better choice. We give you the honest comparison rather than a default answer.

Does the size of the replacement need to match my old boiler?

Usually not. Many older boilers were dramatically oversized when they were installed, which is part of why they short-cycle and waste fuel. Proper sizing comes from a heat load calculation on your current home, not from matching the nameplate on the unit coming out. The replacement is often noticeably smaller and performs better for it.

Can you convert from oil heat to gas?

Yes. Oil-to-gas conversions are one of the common boiler projects we handle. The scope includes the new gas boiler, venting, gas line connection, and safe decommissioning of the oil tank and lines. The fuel cost savings typically pay back the conversion investment across the life of the new system.

Are there rebates available for a new boiler in New Jersey?

Yes. The New Jersey Clean Energy Program, PSE&G, and JCP&L all offer rebates for high-efficiency boiler installations that change year to year. Federal tax credits apply to qualifying equipment through the Inflation Reduction Act. We track current incentives and structure the installation to capture them.

How long will the installation take?

Most boiler installations take one to two days. Projects that include near-boiler piping changes, oil-to-gas conversion, or major venting updates can extend that. You’ll have a clear schedule before any work begins.

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