PA tech repairing boiler

(609) 799-3434

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

4.7
Based on 6446 reviews
powered by Google

Carrier Factory Authorized Dealer
North American Technician Excellence - NATE - Certifying the Finest in HVACR
NAIMA contractor badge - Ask me about tax credits

Years in Business

Skilled Employees

Emergency Service

Trucks on the Road


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

100% Satisfaction Guarantee

4.7
Based on 6446 reviews
Responsive, knowledgeable, dependable, & honest. Thank you for getting out heat up & running!

Update:10/12/18
Chris S got the heat last year and remembered when he arrived today, asked if it had a problem since. He came back to do a PM on the heater and while he was waiting for me to arrive, he opened up the air conditioner to inspect it and saw the coils were filthy. Took out his hose and cleaned them. Then when done, did the heater PM and then โ€œsaid I just want to verify that ringing noise went away. Your house will cool much faster now!โ€ I really like what Princeton air offers, quality and care, diagnose and fix. Not rushing to get to the next job. Theyโ€™re so good I got the year round service plan.

Update may 2025&2026
Maurice is fantastic.
Prompt and knowledgeable. Great technician.
There was an urgent need for a mold problem to be handled in a bathroom. They quickly identified the problem, tested the seriousness, and took care of it – in a very timely fashion. They communicated with me all along the way so I could fully comprehend what was going on. All the people were very knowledgeable, pleasant and accommodating. My experience with them was excellent, and I would highly recommend them.
Eric M. was prompt, professional, courteous and quite helpful. I become a better consumer when I understand the problem & possible solutions. Eric was willing to answer my questions and made me feel secure that he would follow up to help fix our problem.

New review: 2/6/2018
Notice a problem with the humidity in my home, called and got a service appointment in the same day. Will D came out and sure enough, confirmed there was a problem, explained what exactly was happening, why it was happening and how to check that it was working correctly. His demeanor was pleasant, he was professional and seemed to be quite knowledge!
Great service. Domenic was so helpful and explained everything done.
Jermaine Richmond was very knowledgeable and explained my plumbing issue throughly. Thank you.
Pretty micron air was quick to fix my sewer
Friendly and efficient. Quick response service
Eric did a fantastic job
Installation of water heater hvac and furnace – very professional and process oriented –
The technician who came was Jonathan Redondo. He was very knowledgeable and did an excellent job! I would highly recommend him .
Christian and Mike were professional, thorough, patient, and kind throughout my heating boiler installation.
Always excellent service with McAllister.
Robert came to check my 2 carbon monoxide detectors, which were very old. I decided to have him go ahead and replace them with smoke detector/ carbon monoxide combination units. He was very polite and efficient .
Jihmy and Asterson did an outstanding job and were extremely professional during a recent installation of a mini split and air handler. They communicated well, kept the house clean and did the job with a level of professionalism and expertise that was refreshing.
Good job
Maurice Gaines who cleaned and serviced my air conditioner was fantastic! He was fast, respectful and very fast with the repairs.

He made me feel like I was getting the full respect and honesty I so needed for something so important and really appreciated the time he took to explain every and answer all my millions of questions. Also Princeton Air communications were fast and accurate , leaving no question unanswered as to timing and confirmation of appointment. Iโ€™m so happy with their staff and with Maurice- heโ€™s a gem!
Thank you!
The young man who came out to fulfill our annual service contract was extremely professional and was very thorough. Although he told us we needed a new ac unit I felt confident that he knew what he was talking about and took the right amount of time in order to make his recommendation. I want him back every year. Unfortunately I forgot his name because Iโ€™m old.

He then had Ricky call us with replacement ac unit recommendations. He was just as professional. He then took the time to visit our condo, take measurements himself and then made recommendations on what size unit to purchase. I really feel he saved us money. He was amazing.

We then were contacted by a gentleman named Steve who was a manager in the service and installation department. Itโ€™s hard to believe but he was just as good as the first two representatives and was an absolute pleasure to work with. He was a true professional and a real asset to your organization. I will always use your company if I can work with this team. Keep up the great work. Thanks for allowing me to spend $8,000.its hard to believe I didnโ€™t even get other quotes because I was so happy with your team.
Water purification system
Recently Princeton Air did a routine maintenance check on our HVAC UNIT. The technician was Dominic McGinley. I must say Mr. McGinley was outstanding. After performing the maintenance and evaluation, he sat down with us and explained his findings in precise detail. He has also taken pictures of everything he found. Dominic was a pleasure with whom to interact. He was professional, friendly, and extremely knowledgeable. He explained everything in terms that we could definitely understand. He is one of the finest technicians that has ever performed preventative maintenance on our equipment. In my estimation he has all of attributes of a first rate Service Technician. Hopefully Princeton Air just what a valuable asset he is for the company. I certainly hope to interact with him many times in the future.
We recently used Princeton Air to install a new heater. They gave us lots of options, explained each one thoroughly, they arrived promptly on installation day and did a great job. The price was the lowest of three companies I contacted for estimates. Five stars!
Always professional and informative.
We just had our A/C serviced by tech Dominic McGinley who performed a thorough spring maintenance. Dominic was very friendly and courteous. He responded in detail to all my questions spending sufficient time with me.
We had valve and service line repairs from Germaine and Bradley, as well as a toilet replacement. They were great!
Julian found an issue with the ac and resolved it. Explained what the component does that needed replacement.

(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.

Redeem Offer

Your Promotional Selection Has Been Applied!

This field is for validation purposes and should be left unchanged.
Newsletter Signup
This field is hidden when viewing the form