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Best boiler installation pros near New Castle, DE

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    Average homeowner rating
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    Verified boiler installation services reviews

Top-Rated Boiler installation pros in New Castle - Updated Nov 2026

Avatar for Aire Serv of Newark & Middletown
Aire Serv of Newark & Middletown
4.7(
38
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving New Castle, DE and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"First class service from the initial call through the install. Chris and Jeff were on time for services and completed the job in a timely manner. Very impressed with their professionalism, communication and quality of work. I will be using Aire Serv for all of my future services and repairs. I highly recommend Aire Serv to anyone in the area."
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+128

24 neighbors recently requested a quote
Recommended by85%of homeowners
F.H. Furr Plumbing Heating AC & Electrical
5.0(
5
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving New Castle, DE and surrounding areas

Approved (Corporate)

Emergency services offered

Coastal living on Delaware’s Eastern Shore means your cooling and heating systems face constant challenges from salt air, moisture, and temperature swings. Whether you're by the beaches, inland, or up in New Castle, our HVAC specialists deliver solutions that stand up to local conditions while maximizing your home's efficiency. Plus, we tackle all plumbing and electrical issues when your home needs it most. Book your service with F.H. Furr today and enjoy quick, reliable comfort backed by licensed technicians.

5 neighbors recently requested a quote
Avatar for Christian Home Services Heating, Cooling, Plumbing & Electrical
Christian Home Services Heating, Cooling, Plumbing & Electrical
New to Angi
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving New Castle, DE and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

Founded with creating a higher standard in the industry and providing superior customer service, Christian Heating, Cooling, Plumbing and Electrical has been serving the local community since 1989. At Christian, we take pride in employing service technicians who are well trained in their craft and dedicated to the satisfaction of our customers.\n\nFor 35 years, our team has kept your family safe & comfortable. Our expert technicians receive weekly training to ensure that they are up to date on the latest equipment and service practices in our industry. \n\nWe’re here for you 24/7 so don’t hesitate to contact us today.\n\n

3 neighbors recently requested a quote
Avatar for PK Mechanical Services
PK Mechanical Services
4.9(
58
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving New Castle, DE and surrounding areas

In business since 2016

Free estimates

"My experience with PK Mechanical was outstanding. I called PK Mechanical and the owner came out that very afternoon and performed a thorough inspection and serviced the AC unit. The unit needed a replacement part which PK ordered immediately and installed when it arrived a week later. PK Mechanical followed up a couple of weeks later to check on the AC unit, which was now up and running to make great satisfaction. PK’s owner took a personal interest in making sure I was satisfied and I will definitely use PK Mechanical for all my future HVAC needs."
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+16

Recommended by100%of homeowners
Avatar for Air Temp Solutions
Air Temp Solutions
4.7(
59
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving New Castle, DE and surrounding areas

In business since 2011

Emergency services offered

Credit card accepted

"Excellent response. Pipe disconnect found immediately. Just needed gluing. The technician quickly explained and stated cost would be $89.00. I was SO relieved and happy. This company (unlike last one used which Angie's List rated as #1) included dispatch fee in price since repair was done during 1st visit. No hidden costs. No lies @ discounts."
Recommended by91%of homeowners
Avatar for CHADDS FORD CHIMNEY SWEEPS
CHADDS FORD CHIMNEY SWEEPS
4.8(
202
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving New Castle, DE and surrounding areas

In business since 2004

Credit card accepted

"After installing a new water heater, my husband discovered a backdraft issue with the chimney. He called Chadds Ford Chimney Sweep on a Friday, discussed his findings with them, received a likely estimate for that work over the phone, and was able to get an appt for Monday morning. Shortly before the scheduled appt, we received a call from them, apologizing for running late, offering the choice of a new arrival time or a reschedule. We were fine with them arriving later in the day. When they arrived, they went right to work, inspecting the chimney inside and out. They swept it, and explained we had a larger issue. Seems our chimney isn't lined. They gave us a price point for getting that work done (ranging from $2,500 for lining to $4,000 if a rebuild was necessary). I loved how they didn't try to press or bully us into having that work done immediately! They wrote everything down on the statement so we can follow up when we are ready. We would defnitely recommend them, and will be using them for all additional work, including vent cleanings."
Using pipe staging to rebuild a chimney crown.
Technician bringing a new, custom stainless steel chase cover to replace a corroded "builder grade" galvanized steel chase cover.
Relining a fireplace flue with insulated stainless steel.
Sweeping a chimney flue from the top. Only a small portion of chimneys require the old method of sweeping a flue from the top.
Installing a chimney cap at the top of a relined central heater flue.

+5

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

No, there isn’t always water in radiators. In a one-pipe system, water is constantly circulating from the boiler to the radiators and back. In a two-pipe system, water travels through two separate channels: one that goes to your radiators and one that returns back to the boiler so it can heat up again.

The absence of heating or hot water, unusual noises like banging or gurgling, and visible water leakage are key signs. Abnormal boiler pressure, flame irregularities (for gas boilers), or pilot light issues may also signal trouble. Frequent cycling, soot or staining, and unusual odors, particularly gas-like smells, should not be ignored. Modern boilers often display error codes or lockout mode upon detecting issues. Uneven heating across radiators and rising energy bills without increased usage can further point to problems. Prompt attention to these signs is essential to prevent further damage and ensure safety.

Scale from hard water is hard to diagnose until it starts causing problems. If your area has particularly hard water, that’s most likely what your boiler is using. If scale build-up becomes a problem, it starts to cause decreased flow and heating, and eventually, valve failures as valves become blocked. Let boiler professionals know if you’re worried about scale and they can offer advice or implement a solution.

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. 

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 New Castle, DE homeowners’ guide to boiler installation services

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