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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

Installing a boiler requires training, a specific skill set, and extensive experience. Boiler installation can be extremely dangerous, as it involves working with water lines, gas lines, and electricity. For this reason, it’s strongly recommended that you hire a professional to install your boiler. Some states even consider it illegal to work on a boiler without the proper licensing.

If you go to turn it counterclockwise and it won’t turn anymore, it’s open. Like most other valves, you should be able to turn a radiator valve counterclockwise (to the left) to open it and clockwise (right) to close it. To close a radiator valve, turn it clockwise until you meet some resistance and can’t turn anymore, but do so carefully to avoid breaking the valve.

If you’re looking for a way to heat your home that is lower in cost and higher in efficiency, you should run the numbers to see what it would look like to switch to gas or electric heat. The best choice for how to heat your home depends on your location, budget, and energy priorities.

Yes. Boilers need water to run without overheating, also known as dry firing. If you run it without a sufficient volume of water, either because of a burst pipe or a leak, you run the risk of damaging your machine or jeopardizing the safety of your home as a whole. When in doubt, shut off your boiler and repair any plumbing issues before turning it back on. Alternatively, consider installing a low-water cutoff (LWCO) before any issues arise. This gadget will protect your boiler by monitoring water levels and automatically shutting it off if it gets too low. 

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.

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.