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Best boiler installation pros near Mercerville, NJ

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TRUSTED BY MERCERVILLE, NJ HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon588
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Mercerville - Updated Nov 2026

Avatar for Climate Mechanics LLC
Climate Mechanics LLC
4.9(
53
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Mercerville, NJ and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Climate Mechanics worked hard to make sure we had both systems replaced on the same day and before the summer heat started. Nathan provided excellent service and communication throughout the whole process, from the first visit through the install. We are very happy with our systems and are confident knowing we are working with a local company that will be there for the service and maintenance of the units."
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+4

Response time1 day
11 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Whitestone Heating and Cooling
Whitestone Heating and Cooling
4.9(
30
)
Boiler or Radiator Heating System - Install or ReplaceGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business+2 more

Serving Mercerville, NJ and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"My gas boiler stopped working. I wanted to find a local contractor and came across Whitestone Heating and Cooling. After some research I read their reviews which were all excellent. So I called and Oscar came to my home. He and his partner looked at it and thought the leak was caused by a problen that renders the heater unrepairable. After relighting the pilot light he made a slight adjustment to the valve which stopped the leak. He could have just told me the heater was cracked and useless just to have me buy a new one to make himself more money but he didn't which i was so very grateful. He's coming back to put a sleeve in the chimney. I recommend Oscar and Whitestone Heating and Cooling to anybody who needs help with their heating or cooling systems. Today its so hard to find a contractor who above all is honest and wont take a person to the cleaners. Rest assured you can trust this one. Thank you again, Oscar. God Bless."
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+14

Response time5 hrs
3 neighbors recently requested a quote
Recommended by100%of homeowners
Delaware Valley Plumbing and Heating, Inc.
4.6(
572
)
Gas Boiler or Radiator Heating System - Install

Serving Mercerville, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1987

Free estimates

Customers say: Quality work

"Excellent plumbing company. Knowledgeable, fair priced and honest. They installed a new heater in basically one day and it is working well. They disposed of the old heater and everything is cleaned up. Also, easy to work with, did not try to upsell me anything, actually advised me that I didn't need as big a heater as I initially thought. I am very pleased with their work and will use again. Highly Recommend !"
Ceramic Tile
Ceramic Tile
Ceramic Tile
Ceramic Tile
Response time7 hrs
40 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Arctic Air Conditioning
Arctic Air Conditioning
4.8(
867
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install

Serving Mercerville, NJ and surrounding areas

Approved (Corporate)

In business since 1977

Free estimates

Emergency services offered

"Lenny and his crew installed a new Lennox furnace for us. The team is courteous and professional. Lenny found that our old humidifier was installed at the wrong place because of the difficult duct work. He went above and beyond his responsibility and installed the new humidifier at the correct position. I greatly appreciate his honesty and utmost professionalism. It is no wonder that his company gets consistently high reviews."
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+6

15 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Chris Walton, Sr. Plumbing & Heating
Chris Walton, Sr. Plumbing & Heating
4.6(
284
)
Gas Boiler or Radiator Heating System - Install

Serving Mercerville, NJ and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"My house has been sold. One of the things on the inspection list was clean the furnace. Chris Jr. did open the front & showed me that the inside was still very clean but I told him to clean anyway. Then he found a little water on the floor next to the furnace & discovered a leaky pipe. Explained everything he was going to do & gave me an approximate cost. He was efficient & professional. Had an excellent experience with this company. I intend to recommend them to others."
Response time5 hrs
Recommended by95%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.4(
1,283
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Mercerville, NJ and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"It was a superb experience. From the visit by Bruce the sales representative to the installation day to the follow-up from Petro, every single person we interacted with was helpful and professional. When Bruce arrived to do the assessment, we spent time going over the heating needs in the house. After a thorough inspection and measurement of the house, we sat down. He showed me a few options, all of which were going to provide good service. I ordered a unit at the end of that meeting. The installation day was just terrific- the entire work crew that showed up were everything I would hope to find: Upbeat, informative, hard-working, focused. The job was finished before end of day as promised. The heater room is now immaculate, with new piping and a new heater. It was like watching a pit crew at a NASCAR race. Everyone had their tasks, they moved carefully but quickly. The materials were all laid out in order, etc. Just a totally professional approach to their work. The crew boss answered any questions I had. The follow-up for a normal inspection of the furnace chimney was scheduled the day after the installation. I’ve gotten calls to insure we are satisfied with the work. Satisfied barely covers it- I am pleased to write this kind of review. Without hesitation I will recommend Petro to friends and family throughout the Philly area. Peter A. Elkins Park"
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Response time6 days
Response rate100%
18 neighbors recently requested a quote
Avatar for LIV AIR
LIV AIR
5.0(
14
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Mercerville, NJ and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"I had such a great experience with Liv Air! They serviced my boiler, and from start to finish the process was seamless. Leo is incredibly professional, easy to speak with, and genuinely such a nice person. He?s honest, reliable, and you can tell he truly cares about his customers. The technician who came to replace the parts was also wonderful ? very clean, respectful, and efficient. I?ve dealt with other companies before, but no one even comes close to the level of service Liv Air provides. Their pricing is fair and reasonable, and they answer calls right away, which is so rare these days. I?m honestly taken back by how great they were. I highly recommend Liv Air!"
Heating & A/C Project
Heating and Air Conditioning Project
Heating and Air Conditioning Project
Heating & A/C Project
Heating & A/C Project

+46

Response time1 day
Response rate100%
3 neighbors recently requested a quote
Avatar for Alliance Service Professionals, LLC
Alliance Service Professionals, LLC
4.3(
22
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Mercerville, NJ and surrounding areas

Approved (Corporate)

In business since 2018

Free estimates

Emergency services offered

"Alliance service pros came to our house to find out why nothing was flowing from our house into my septic tank. They found that the pipe from the house to the tank was failing due improper installation when the house was built. Alliance arrived at our house before the time frame they gave me. They were up front with every charge throughout the process of identifying the source of our problem. A second truck had to be called in with extra equipment and supplies. They did not leave until our problem was solve. This company is honest, reasonable, professional and the guys are very kind. We would highly recommend this company."
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+19

Recommended by90%of homeowners
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Install Boiler FAQs, answered by experts

If you have a closed-system boiler that requires an expansion tank, you cannot safely operate it without one, as this risks extensive damage or even explosions. You must find a way to make room for the installation. Options include repositioning the boiler, rerouting the boiler piping to a more open area, or performing minor remodeling to create the necessary space. If you are unsure whether your boiler needs an expansion tank or how to best accommodate one, it's recommended to have a local heating service professional assess the situation. They can confirm the requirement and suggest the most practical solution.

If you want a new boiler that’s going to help lower your fuel bills, you should buy one that has a high energy-efficiency rating. For example, a boiler that is rated “A” uses at least 90% of the energy created by the boiler. And in order to enjoy the best performance, it’s important to have it installed properly by a highly-rated tech.

The best time of year to purchase or replace an HVAC system, including components like an air conditioner or furnace, is during the off-season—spring and fall. During these periods, HVAC professionals are less busy than in summer and winter, when extreme temperatures create urgent demand. Shopping during the off-season can lead to savings of 10% to 15% on an AC unit and allows you more time to find the best deal and other cost-saving incentives. Typically, air conditioning units go on sale in the fall after demand drops, while furnace prices tend to decrease in the spring.

One of the easiest ways to determine which type of furnace will work best for your home is to contact a professional in your area. Many HVAC companies offer free consultations to help potential customers determine if they need a new system and which type would work best for their home and the community’s climate.

A furnace is a big unit where gas, heating oil, or electricity heats the air. The warmed air is then pushed back out through ducts and vents. 

A boiler uses electricity, heating oil, or gas to heat water that is pushed into the room through a radiator. This is one of the oldest and most effective ways to heat a house, but radiators can also be unsightly and leave hot and cold spots in the room.

Heat pumps use a refrigerant to move heat from outside into the house and return it to the room through ducts and vents.

The Mercerville, NJ homeowners’ guide to boiler installation services

From average costs to expert advice, get all the answers you need to get your job done.