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TRUSTED BY HARLEM, NY HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon629
    Verified boiler installation services reviews

Find Boiler installation pros in Harlem

Divergent HVAC Solutions, LLC
4.6(
169
)
Boiler or Radiator Heating System - Install or Replace

Serving Harlem, NY and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"Very fast response and guided us through initial troubleshooting by phone to ensure we got the best value from a future visit. Very helpful and will definitely be using them for future Nest / Boiler repairs and maintenance."
Call (917) 335-7592
Response time5 hrs
1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Twinz Mechanical, LLC
Twinz Mechanical, LLC
5.0(
17
)
Gas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - Install

Serving Harlem, NY and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"We had our old boiler removed and a new 250,000 BTU Weil-McLain installed. The experience was great. The price was really fair, especially for the quality of work. They showed up right on time, got straight to work, and you could tell they knew exactly what they were doing. Everything was done in a very organized and professional way, but still felt easy and stress-free on our end. What I appreciated most was how clean and quick they were—no mess left behind, and the job was done faster than expected without rushing anything. Overall, just solid, reliable service. Would definitely recommend them to anyone needing boiler work."
Boiler replacement
Boiler replacement
Boiler replacement
Boiler replacement
Boiler replacement

+17

17 neighbors recently requested a quote
Avatar for BERARDI ELECTRICAL CONTRACTING, INC.
BERARDI ELECTRICAL CONTRACTING, INC.
3.7(
71
)
Electric Boiler or Radiator Heating System - Install

Serving Harlem, NY and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Since I moved into my apartment around 20 years ago, I've had problems with the bathroom exhaust fan. When I turned it on, often the circuit breaker would be thrown. Finally it got to the point where it just wouldn't work at all - if I tried to use it, the fuse was blown. I posted the project here and Leonel of Berardi contacted me shortly afterwards. After looking at it he determined that the fan was the wrong kind and wasn't even installed properly. He explained it to me, ordered the correct fan, and had someone come over to install it. Now the fan works perfectly, no more blown fuse, and it's less noisy, too. They could have played this differently, slapped on a bandaid on it and had me call again and again for the same problem, but Berardi did the right thing. I'd recommend them to anybody who needs electrical work done."
Lido beach NY
Lido beach NY
Lido beach NY
Response time7 hrs
Response rate100%
9 neighbors recently requested a quote
Avatar for Airtronics Air Conditioning
Airtronics Air Conditioning
3.9(
7
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Harlem, NY and surrounding areas

Approved

In business since 1973

Emergency services offered

Warranties offered

With over 50 years building one of New York’s premier HVAC companies, Airtronics has become one of the most respected and trusted companies in the industry.\n\nWith our experience and expertise, you can be assured that we stand behind our work and employ the most talented technicians supported by a responsive and personable operations team.\n\nRest assured there’s no problem we haven’t solved-whether it’s servicing a new model or catering to an older system’s eccentricities. With decades-long relationships with co-op boards and building supers,we get approved for work faster than anyone else.\n\n24/7/365 SERVICE CALLS\n\nWhen you need us, we’re there!

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+2

Response time1 day
Response rate100%
8 neighbors recently requested a quote
Avatar for 365 Kool Inc.
365 Kool Inc.
4.5(
56
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Harlem, NY and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"Alfonso, Dave and Al were outstanding!!! Professional, courteous and simply nice individuals! I meet with Alfonso last Tuesday to discuss my boiler problems and what needed to be done. I can honestly state after talking with him I knew I had chosen the right company even if, it cost more than I had anticipated. I trusted him and did not feel pushed into something. On the day of installation any questions I had were answered, they cleaned up everything and I am 100% satisfied with everything! (The Unit installed, timeliness, workmanship, cleanup and the individuals themselves!) I would highly recommend this company without any reservations, and yes their manager Mr. Gil Karni was a man of his word, from whom he sent to do the job and taking into account my personal needs with the time of day I had available for all."
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Recommended by81%of homeowners
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Install Boiler questions, answered by experts

Oil boilers provide reliable heating, efficiency, and long-term cost savings compared to electric options.

DIY is not recommended due to safety risks and technical expertise required. Hire licensed professionals.

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.

Always consult your manual for specific pressure numbers. Many expansion tanks come pre-pressurized at a specific PSI range, anywhere from 12 to 40 PSI, designed for a range of home boilers. You should not have to pressurize an expansion tank yourself, only the boiler system. If your system has a tank that needs to be manually pressurized, this is generally a job for professionals and their tools.

Steam boilers require flushing at least every six to 12 months to keep them operating effectively for as long as possible. Depending on your water quality and frequency of use, you might need to do this more frequently. The flushing process helps to remove problematic buildup of sediments. While a boiler contractor near you can perform a thorough annual flush, learning how to drain the system yourself means you can do this monthly if you experience speedy mineral accumulation because of hard water. 

The Harlem, NY homeowners’ guide to boiler installation services

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