Top-rated boiler installation pros.

Get matched with top boiler installation pros in Demarest, NJ

Enter your zip and get matched with up to 5 pros

Need a pro for your boiler installation project in Demarest, NJ?

Select your specific project to find the pro for you.

TRUSTED BY DEMAREST, NJ HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon958
    Verified boiler installation services reviews

Verified Reviews for Boiler Installation pros in Demarest, NJ

*The Angi rating for Boiler Installation companies in Demarest, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.

*The HomeAdvisor rating for Boiler Installation companies in Demarest, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.

Last update on December 09, 2025

Find Boiler installation pros in Demarest

Avatar for Advanced Professional Management, LLC
Advanced Professional Management, LLC
4.2(
937
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install - For Business

Serving Demarest, NJ and surrounding areas

Approved

In business since 1999

Emergency services offered

Warranties offered

"The technicians performed routine maintenance and repair of two boilers their company installed two years ago. They did a thorough job of flushing the water heating lines, testing the system, and re-installing a low-water shut off valve that had failed last year. I have used this plumbing company for years and will continue to do so, highly recommended to people in the Northeast New Jersey area."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+33

Response time11 hrs
Response rate100%
8 neighbors recently requested a quote
Request Quote
Avatar for Petro Home Services
Petro Home Services
4.3(
103
)
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

"Furnace was not operating because the company's automatic delivery system ran me out of oil.
Technician showed up promptly and got the furnace operating but could not get heat into the house. Had to reschedule to have zone valves replaced. Technician show up late and didn't have the required parts. Had to reschedule again.
The third technician showed up on time with all the correct parts and worked most of the day to get the system operating properly.
He was completely knowledgeable and very conciencious that everything was working correctly.

"
Additional Photos
Additional Photos
Additional Photos
Response time6 days
Response rate100%
18 neighbors recently requested a quote
Request Quote
All Pipeworks Plumbing & Heating, LLC
4.4(
147
)
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

"Had issues with boiler circulating water through house and hot water heater was struggling. Technician came out and diagnosed on Monday and came back Tuesday morning to complete all work, including a new valve and spout for my outside hose connection. Painless and reasonably priced!"
Response time4 hrs
96 neighbors recently requested a quote
Recommended by87%of homeowners
Request Quote
Avatar for Alfano Mechanical, LLC
Alfano Mechanical, LLC
4.2(
498
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business+1 more

Serving Demarest, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"I had a high-efficiency boiler installed, and the team was knowledgeable and professional throughout the process."
Pic 1
Pic 2
Pic 3
Pic 4
Pic 5

+7

Response time4 hrs
Response rate90%
8 neighbors recently requested a quote
Request Quote
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
Request Quote
Avatar for Gold Medal Service, LLC (NY)
Gold Medal Service, LLC (NY)
3.7(
421
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Demarest, NJ and surrounding areas

Approved

In business since 1978

Free estimates

Emergency services offered

"They made the installation effortless and were on time and we are happy,"
GM tech with homeowner and water heater
GM plumber under sink
After - Tankless Water Heater with softener
Before - Older water heater
Water Heater

+1

12 neighbors recently requested a quote
Recommended by85%of homeowners
Request Quote
Avatar for NJ PLUMBING AND HEATING GUYS LLC
NJ PLUMBING AND HEATING GUYS LLC
4.3(
14
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Demarest, NJ and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"System was fully installed. Elvis the technician guide me about the system options"
41 neighbors recently requested a quote
Request Quote
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!

Request Quote
Avatar for PROMEN HVAC Inc
PROMEN HVAC Inc
4.9(
206
)
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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Recommended by97%of homeowners
Request Quote
Avatar for Overall Plumbing Heating and Cooling
Overall Plumbing Heating and Cooling
4.9(
70
)
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

Free estimates

Emergency services offered

"Sam was very responsive and offered many solutions. He and is team did a great job on the repair and installation. Highly recommend!"
Heating & A/C Project
Plumbing Project
Heating & A/C Project
Plumbing Project
Water Heaters Project

+17

Recommended by100%of homeowners
Request Quote
...
Showing 1-10 of 202
Install Boiler questions, answered by experts

Most experts recommend getting three to five HVAC quotes from licensed, insured, reputable local heating and cooling companies. Getting multiple detailed HVAC quotes (but not too many) lets you compare the equipment, services, and prices of several contractors without being overwhelmed by options. It can also let you see if one contractor’s prices are much higher or lower than the others and give you a chance to ask for clarification. That way, you can weed out any contractors who aren’t providing quality services or materials and find the company that best meets your budget, quality requirements, and long-term goals.

A furnace takes in cool air, heats it through the burner and heat exchanger, and sends the air on its way to warm your home. A boiler is a pressurized vessel that produces hot water or steam to heat the home and provide hot water. A boiler may or may not work together with a furnace.

Some high-quality steam boilers come with 10-year warranties, but a well-installed, properly maintained model can last at least 20 to 25 years. Learning how to clean a boiler, getting an annual professional service, and keeping up with maintenance and repairs on your heating system are all important for getting the most out of your model. 

Due to fuel line connections and venting complexity, professional installation is required for safety and efficiency.

Coolant and antifreeze are technically not the same thing. The difference between the two is the ratio of water to other chemicals. True antifreeze is mainly made up of either ethylene glycol or propylene glycol, while coolant comprises one part antifreeze and one part water. However, the terms coolant and antifreeze are often used interchangeably, even by pros.

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.

See all articles