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Best boiler installation pros near Wilmington, DE

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    Verified boiler installation services reviews

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

Avatar for Aire Serv of Wilmington
Aire Serv of Wilmington
4.9(
7
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Wilmington, DE and surrounding areas

Approved

In business since 1992

Free estimates

Warranties offered

"AirServ installed central air conditioning system. We are very satisfied with the timeliness and professionalism of their work. They respected our property and left it in excellent condition. They went over and above their work plan. We expect to have a long relationship with them."
12 neighbors recently requested a quote
Recommended by83%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 Wilmington, 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 Wilmington, 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 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 Wilmington, DE and surrounding areas

In business since 2011

Emergency services offered

Credit card accepted

"I have nothing but praises to sing for this company! Our heat stopped working on us last week right before the temp was expected to drop significantly. I checked Angie's List, found Air Temp Solutions, submitted my issue and within minutes I received a phone call to set my appointment. They sent over Rob Teixeira who was EXCELLENT!!!! He immediately detected the issue which was the flame sensor, fixed it and viola...we had heat again in no time! We are planning on doing further work with this company as we need to have an additional return grille installed. If you need fast and reliable heating or AC this company (and Rob) is who you should go with...you will not be disappointed!!!"
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 Wilmington, 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

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.

Boilers are equipped with multiple safety features to ensure safe operation. These include pressure relief valves to prevent overpressure, temperature high-limit switches to avoid overheating, and flame failure safety devices in gas boilers to cut off the gas supply if the flame goes out unexpectedly. Low water cutoffs prevent operation with insufficient water levels, and pressure gauges help monitor pressure levels. Ventilation and flue systems prevent the buildup of harmful gasses. Boilers often feature error code systems for automatic shutdown during malfunctions and gas leak detection for safety. Regular maintenance is crucial to ensure these safety features function correctly.

In some cases, conversion kits are available, but not all boilers are compatible. Conversion may require significant modifications and should only be performed by a qualified professional. Before making a decision, compare conversion costs to the cost of a complete replacement to determine the most cost-effective and reliable option for your home.

Many HVAC companies offer free quotes and free estimates for repairs and new HVAC systems. Others offer low-cost quotes or apply the cost of the estimates or diagnostics to your final bill if you hire them. Be aware that some companies advertise free HVAC quotes and recoup the costs by charging more for their services. Free HVAC quotes are never truly free—they cost the company time and effort—so be a good customer. Also understand that you may end up paying for free quotes in another way if you don’t hire a reputable company.

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

The Wilmington, DE homeowners’ guide to boiler installation services

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