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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.5k+
    Verified boiler installation services reviews

Find Boiler installation pros in Millstone

Avatar for Alpine Heating and Cooling
Alpine Heating and Cooling
4.7(
253
)

Serving Millstone, NJ and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"Alpine Heating and Cooling replaced our old two-zone heating and cooling system with a new energy efficient one. The team of installers arrived as scheduled, and the installation was done quickly and professionally. Alpine applied for the permits and we passed the inspection with flying colors. Their pricing was very competitive. We are very happy with the new system and reduced utility bills."
After
0% Financing - 7 years on HVAC System
July 4th Special!
Before
Estimated Energy Savings

+22

Response time2 days
20 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for H2bros Plumbing and Heating
H2bros Plumbing and Heating
5.0(
30
)

Serving Millstone, NJ and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

"I had the best experience with H2Bros Plumbing and Heating. I hired them to install Navien combi unit to replace my old boiler and water heater. Genaro and Javin were very knowledgeable, professional, and polite from the start. They did an awesome job by installing all the needed parts by the code and very neat. Even though I know some plumbing companies cut corners and not install all additional components that recommended by Navien. Very reasonably priced for the job they did. I would definitely recommend them for similar jobs or any plumbing and heating projects. Please see the photo of the finished job for yourself."
Response time2 hrs
Response rate100%
Avatar for Valairco
Valairco
4.7(
224
)

Serving Millstone, NJ and surrounding areas

Approved

In business since 1968

Free estimates

Emergency services offered

"Nick and the team were working hard for 2 days trying to install the boiler and route all the pipes in a very tight space. After two days we got a new boiler which hopefully will last long. 5 years worry-free warranty from Valairco is another reason I went with this company."
24 Hour Service
Trained Technicians
Quality Products
Additional Photos
Additional Photos

+44

Response time1 day
16 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Raynor Services- Electrical/HVAC/Generators/Solar
Raynor Services- Electrical/HVAC/Generators/Solar
4.5(
157
)

Serving Millstone, NJ and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"Excellent HVAC and Solar installation services! They did a great job installing a new HVAC system for us a few years ago, so we sought their services again for Solar installation. They were very professional both times: provided pricing right away, technicians were polite, and job was completed in a thorough yet efficient manner. Jobs well done!"
Additional Photos
Additional Photos
Additional Photos
Replacing an outdoor air conditioner with a high efficiency, consumer reported top rated American Standard unit.  Level, wired properly, and completed beyond code and required standards.  Thank goodness for a team that cares and loves what they do AND our customers.
Great technicians who have amazing skill and are just good humans too.

+6

Response time11 hrs
Response rate92%
59 neighbors recently requested a quote
F.S. Plumbing, Heating, & General Contracting, Inc.
4.6(
145
)

Serving Millstone, NJ and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"veni vidi vici They came They saw They conquered Arrived in the morning, gave us a quote and our leaking water heater was removed and a new one installed the same afternoon. The installers were professional, polite and fast. Contact with the main office regarding payment, etc was greeted with friendly and informative people. Would happily used this company again."
Rinnai Recirculation 95% efficient Tankless
Another Old tank style heater sent to the junkyard
Response time1 day
Recommended by83%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.3(
103
)

Serving Millstone, 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"
Additional Photos
Additional Photos
Additional Photos
Response time6 days
16 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Right on Home Improvements, LLC
Right on Home Improvements, LLC
4.3(
70
)

Serving Millstone, NJ and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"“Awesome company, great work. I will hire again for other home improvement jobs.” Installers were professional, on-time and clean. This is a world-class organization. They only promised and delivered on the services they could perform. Their email quoting system is one of the best. The home owner will know upfront the cost of the job,"
Small job that meant a lot
Response time1 day
2 neighbors recently requested a quote
Recommended by96%of homeowners
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Install Boiler questions, answered by experts

An expansion tank must always be installed on the supply side, which is the side where the boiler sends water out to heat the systems. That placement allows the water to push against the air and condense properly as it is heated, then circulated through the system. Professional installers can recommend the best place on the supply side for an expansion tank.

Radiators are a popular home heating choice in older homes, but they are becoming less common in new-construction homes. According to a 2022 report by Elements Visual Capitalist, only around 1.3% of new single-family homes have radiators and similar heating systems, such as baseboard heating.

While they may not be as popular as they once were, radiators today come with more energy-efficient features that can make them practical for modern homeowners.

It can take anywhere from four hours to three days to replace a boiler with a new one. How long your particular boiler installation takes will depend on whether you need a gas line installed and if you’re switching to a new boiler system. 

Replacing a combination boiler or standard boiler with the same system should only take four to six hours. Meanwhile, switching from a conventional boiler system to a combination boiler system could take a few days.

Costs depend on unit size, labor, fuel type, and whether additional piping or venting is needed.

Generally, an oil furnace is considered safer than a gas furnace for several reasons. While both types of furnaces can produce carbon monoxide, a leak in an oil furnace is easier to detect due to the smell. Oil furnaces also don't connect to a gas pipeline, which reduces the chance of a fuel leak. Most importantly, heating oil is not combustible, whereas natural gas is highly flammable. This means there is a much lower risk of combustion or explosion with an oil furnace. However, an oil furnace can still pose a fire hazard if it tips over.

The Millstone, NJ homeowners’ guide to boiler installation services

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