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TRUSTED BY DELAWARE, NJ HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon171
    Verified boiler installation services reviews

Find Boiler installation pros in Delaware

Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)

Serving Delaware, NJ and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"I enthusiastically recommend this company. Mehmet was always prompt for appointments and texted to let you know he was on his way. His crew worked from 7 am to 7 pm and got our new central A/C system installed in one day during a heat wave. Very professional outfit, polite and cheerful to have around."
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+1

2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Dawson Mechanical Contracting
Dawson Mechanical Contracting
4.8(
134
)

Serving Delaware, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Free estimates

Emergency services offered

"I had a great experience with this company installing my new boiler. Their pricing was fair compared to other estimates I received. Dave walked me through the entire process and answered all my questions, and his team came in and did a great job with the installation. With so many scammers out there, I truly felt comfortable working with this company and will absolutely use them again in the future."
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+20

Response time5 hrs
6 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Speer Air
Speer Air
4.6(
165
)

Serving Delaware, NJ and surrounding areas

Approved

In business since 1958

Free estimates

Emergency services offered

"Speer Air just completed a complete overhaul of my existing HVAC including an upgrade of part of our system. The entire experience from initial sales visit to completion was great. Throughout the installation, the team was friendly, always available to answer a question, clean and respectful of my 3 young children (making sure nothing was left behind or any debris that could hurt them). System is operational and very satisfied. Highly recommend them."
Residential Attic Install
Commercial Multi Unit Install
Guardian Series
Response time2 days
Response rate85%
9 neighbors recently requested a quote
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.6(
68
)

Serving Delaware, NJ and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"Kevin was great! The rest of the company not so much. Kevin diagnosed the problem immediately as the thermostat, had a replacement in the truck, and completed the installation of the new unit quickly. He showed me how to program the updated version, and everything seemed to be fine - until the next morning. Turned out the replacement was defective. When I called, I was told that they might not be able to get back to me that day, but Kevin interrupted his schedule to come back and put in a new (and working) unit at no charge."
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+13

Response time3 days
12 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Ryan & Company
Ryan & Company
4.4(
68
)

Serving Delaware, NJ and surrounding areas

Approved

In business since 1949

Free estimates

Emergency services offered

"Installation went well and have had no issues since, seems to be working well. Entire process from scheduling to installation went very well. Beats having to refill 2 humidifiers all winter and cleaning up the white dust mess.
"
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Lochinvar KBN 211
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Response time1 day
6 neighbors recently requested a quote
Recommended by85%of homeowners
Easy Flow Drain Cleaning and Mechanical Services
4.8(
128
)

Serving Delaware, NJ and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"se  Rob is a dream come true. As a single woman running my own home and being very particular.....it is extremely important to be able to discuss the job, hear all the details, and employ someone who is honest, honorable, well qualified, neat, and highly informed. I first hired Rob for the drain problem. He accomplished that efficiently and neatly at a reasonable price. We discussed options for a back up for the sump pump. Having a finished basement, I am always concerned about water. I have never lost electricity during a rain storm....but the possibility always takes up space in my brain. I have a portable generator....but I have to be home to start it. Today Rob arrived on time and installed the back up for me. It took the whole morning as he predicted. He explained how it all worked and it is a beautiful thing. I so appreciate knowledgable and personable service. I highly recommend Easy Flow Drain and Mechanical LLC for any plumbing needs. Oh....one more thing...he noticed a leak in my fairly new furnace exhaust piping. He pointed it out and gave me several possible reasons for the leak so I could intelligently discuss it with the company that installed the new energy efficient furnace. What else could you want from a plumber? I was extremely satisfied and impressed with his service. I'm also grateful for Angie's List!!!!
"
Recommended by95%of homeowners
Avatar for Braido Heating & AC
Braido Heating & AC
5.0(
25
)

Serving Delaware, NJ and surrounding areas

In business since 1978

Emergency services offered

Credit card accepted

"My air conditioner condensers were struck by a power surge this summer. They were beyond repair, after repair inspections by 3 different firms, including Braido. Since my house is 21 years old, I knew that eventually the furnaces would have to be replaced as well, so I bit the bullet and replaced both the air conditioners and the furnaces for the upstairs and downstairs zones of my home. 
I came across Braido's name from a local community board on Facebook. I checked their ratings out on Angie's List and decided to have them inspect and then provide an estimate.
They were knowledgeable, helpful and reasonable throughout my decision making process. When we finally did decide to go with Braido, we were glad we did. They offered 0% financing on the balance and charged, what I believed. to be a reasonable rate, since I could compare their price to 3 other estimates. 
For the install, they actually came 1 day early to lay the slab for the condensers outside because rain was being forecast. Smart thinking!
Then, what was supposed to be a 3 day install, took only 2. They were timely, professional and tidy. Would definitely recommend!
"
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Recommended by100%of homeowners
Airco Heating & Cooling
5.0(
18
)

Serving Delaware, NJ and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Keith and his crew are extremely professional and knowledgeable, and did an outstanding job installing a heat pump and brand new ductwork into a difficult old house. They notified me of arrival times, were prompt, neat, and did the work efficiently and quickly. I highly recommend this company and will be using them again for future projects!"
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Recommended by100%of homeowners
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Install Boiler questions, answered by experts

If you have a closed-system boiler that requires an expansion tank, you cannot safely operate it without one, as this risks extensive damage or even explosions. You must find a way to make room for the installation. Options include repositioning the boiler, rerouting the boiler piping to a more open area, or performing minor remodeling to create the necessary space. If you are unsure whether your boiler needs an expansion tank or how to best accommodate one, it's recommended to have a local heating service professional assess the situation. They can confirm the requirement and suggest the most practical solution.

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.

On average, you’ll need about two gallons of oil per day to heat your house when it’s 50 degrees Fahrenheit outside. Most oil tank capacity is about 275 gallons, and heating your house with two gallons of oil per day will last about four and a half months. This consumption will vary depending on the climate and average temperature in your location. For example, if the winters are longer and colder where you live, you’ll probably need to refill your oil tank at least once to get through the winter.

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. 

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

The Delaware, NJ homeowners’ guide to boiler installation services

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