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Best boiler installation pros near Demarest, NJ

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TRUSTED BY DEMAREST, NJ HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon967
    Verified boiler installation services reviews

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

Avatar for Petro Home Services
Petro Home Services
4.4(
1,786
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Demarest, 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
All Pipeworks Plumbing & Heating, LLC
4.4(
150
)
Gas Boiler or Radiator Heating System - Install

Serving Demarest, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2003

Free estimates

Credit card accepted

"We hired Erik to fix a broken toilet tank, and also to inspect heating boiler and hot water heater that got water damaged. Erik was very professional and knowledgeable. Due to insurance being involved, everything Erik said was later verified to be spot on by an independent technician from the insurance. Erik also charged very reasonable price. Highly recommended."
Response time4 hrs
78 neighbors recently requested a quote
Recommended by85%of homeowners
1 Intact Plumbing & Heating, LLC
4.6(
61
)
Gas Boiler or Radiator Heating System - Install

Serving Demarest, NJ and surrounding areas

Approved

In business since 2015

Credit card accepted

Customers say: Quick response

1 Intact Plumbing & Heating, LLC proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!

Recommended by96%of homeowners
Kay's Affordable HVAC&R, LLC
New to Angi
Gas Boiler or Radiator Heating System - Install

Serving Demarest, NJ and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

Kay's Affordable HVAC&R, LLC offers quality services to clients at reasonable prices. Our courteous staff has the professional tools and experience necessary to help with all your needs. We specialize in Central A/C installations and Repairs, Electric Boiler Installs and Repairs, Gas Furnace Installs and Repairs and Heat Pump Installs and Repairs. Call today to get in touch with our staff, and to learn more about what we have to offer!

1-800-Plumber +Air Of Bergen County
New to Angi
Gas Boiler or Radiator Heating System - Install

Serving Demarest, NJ and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

Your trusted partner for expert heating, ventilation, and air conditioning services in Bergen County and surrounding areas. Our licensed and experienced technicians provide comprehensive HVAC solutions for both residential and commercial properties. From routine maintenance and emergency repairs to full system installations, we ensure your home or business stays comfortable year-round.

Avatar for PROMEN HVAC Inc
PROMEN HVAC Inc
4.9(
207
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Demarest, NJ and surrounding areas

In business since 1998

Emergency services offered

Credit card accepted

"Second time I called upon Promen. Diego, as usual, was very prompt and efficient. I needed a gas shut off valve for the installation of a new gas dryer. He performed everything very quickly and safely. Checked that all my gas appliances were functioning properly after the gas was turned back on."
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+13

Recommended by97%of homeowners
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Install Boiler FAQs, answered by experts

The cost to install a steam boiler varies depending on the type, fuel used, and your house size. The average cost to install a boiler is $5,900. You could spend $2,000 for a basic electrical steam boiler or up to $9,000 for a high-efficiency oil-burning steam boiler. Boiler installation is a job that’s best left for professionals to complete, and, in some states, only licensed installers can legally complete the job.

If your boiler is 20 years old, it’s time to get a new one. Although it may seem to be working fine, it’s likely eating up more fuel than it should. Also, compared to a brand-new boiler, one that’s 20 years old is probably not working as well. When you get your new unit, you’ll notice that your home is heating more quickly, and the heat is consistent throughout all the rooms.

The best way to compare HVAC quotes is getting a few detailed quotes from local companies with good reputations. Then, go over the quotes line by line. Protect yourself by insisting on in-person estimates that include equipment manufacturer names, model numbers, SEER ratings, amounts and numbers of materials, details of warranties on equipment and labor, and other specifics. 

Knowing the exact equipment and materials is the only way that you can fairly compare quotes. Quotes that are much lower than others can be a sign that the company isn’t providing the best quality service or materials.

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.

Depending on the size of your home and system, as well as any upgrades or add-ons you choose, it may take between three and five days to completely replace an existing HVAC system from start to finish. Your contractor should be able to give you an estimate before they begin the actual replacement.

The Demarest, NJ homeowners’ guide to boiler installation services

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