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TRUSTED BY FREDERICK, PA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon406
    Verified boiler installation services reviews

Find Boiler installation pros in Frederick

Avatar for J.P. Works, LLC
J.P. Works, LLC
4.9(
50
)
Gas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - Install

Serving Frederick, PA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"Needed to replace a 40 year old gas boiler. JP had the best price for a high efficiency compared to 3 other quotes. Jim (owner) was in and out of the project but sensed he was on top of it. He was even able to save us a bunch of space by repositioning the boiler location. Definitely going to use these guys for my HVAC and plumbing needs going forward."
Response time6 hrs
23 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.3(
103
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Frederick, PA and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"It was a superb experience. From the visit by Bruce the sales representative to the installation day to the follow-up from Petro, every single person we interacted with was helpful and professional. When Bruce arrived to do the assessment, we spent time going over the heating needs in the house. After a thorough inspection and measurement of the house, we sat down. He showed me a few options, all of which were going to provide good service. I ordered a unit at the end of that meeting. The installation day was just terrific- the entire work crew that showed up were everything I would hope to find: Upbeat, informative, hard-working, focused. The job was finished before end of day as promised. The heater room is now immaculate, with new piping and a new heater. It was like watching a pit crew at a NASCAR race. Everyone had their tasks, they moved carefully but quickly. The materials were all laid out in order, etc. Just a totally professional approach to their work. The crew boss answered any questions I had. The follow-up for a normal inspection of the furnace chimney was scheduled the day after the installation. I’ve gotten calls to insure we are satisfied with the work. Satisfied barely covers it- I am pleased to write this kind of review. Without hesitation I will recommend Petro to friends and family throughout the Philly area. Peter A. Elkins Park"
Additional Photos
Additional Photos
Additional Photos
Response time6 days
Response rate100%
18 neighbors recently requested a quote
Avatar for Retro HVAC Service & Installation, LLC
Retro HVAC Service & Installation, LLC
5.0(
12
)
Oil Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install

Serving Frederick, PA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"We had a new heater installed by this company. The process was so easy. Everything was explained with detail from start to finish. We also used them for routine services. They always respond promptly and come out quickly. We will definitely use them again and recommend them to anyone looking for HVAC services."
New Air Conditioning
New Air Conditioning
New Air Conditioning
New Air Conditioning
New Air Conditioning

+7

Response time11 hrs
3 neighbors recently requested a quote
Recommended by16%of homeowners
Avatar for Keystone Comfort HVAC LLC
Keystone Comfort HVAC LLC
5.0(
8
)
Oil Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install

Serving Frederick, PA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

Keystone Comfort HVAC was built to provide a better experience for homeowners in southeastern PA. After years of working within large, corporate-driven HVAC environments, our founders saw a growing need for a company that values honesty, quality work, and long-term relationships over quick transactions. We understand the common frustrations customers face, including unclear communication, rushed service, and short-term fixes that don't solve the real problem. We take the time to listen, explain what is happening, and provide clear recommendations tailored to your needs. Whether it is system repairs, new installations or maintenance, we focus on doing the job right the first time. We believe that when customers feel informed/confident in their decisions, the results are better. We also believe that strong teams create better outcomes. By supporting our employees and maintaining high standards in our work, we are able to deliver consistent service that customers rely on.

Heat pump air handler
Heat pump air handler
Heat pump air handler
Heat pump air handler
Heat pump air handler

+6

25 neighbors recently requested a quote
Avatar for HVAC Gurus
HVAC Gurus
4.4(
13
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install

Serving Frederick, PA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"HVAC Gurus were amazing. Extremely flexible in work with and around other trades also busy on the complete renovation. Their technician Joe did such a good job; he designed and planned the HVAC retro-fit of central heat and air into my 100 year old house to be transparent. Then Joe did the work and delivered flawlessly. Great value for money, below other bids I got. Iâ m in the trades and Iâ m telling you, these guys are top notch."
Response time12 hrs
Recommended by100%of homeowners
Avatar for 610 Indoor Comfort LLC
610 Indoor Comfort LLC
5.0(
4
)
Gas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Frederick, PA and surrounding areas

Approved

Free estimates

Warranties offered

Credit card accepted

"I had a great experience with this HVAC company from start to finish. They were professional, punctual, and took the time to explain everything clearly. The technicians were knowledgeable, respectful of my home, and made sure the job was done right. Their pricing was fair, and the quality of their work exceeded my expectations. I highly recommend them to anyone looking for reliable and honest HVAC service. I will definitely be using them again in the future!"
HVAC
610 HVAC
610 HVAC
610 HVAC
610 HVAC

+5

1 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 Frederick, PA 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

5 neighbors recently requested a quote
Avatar for Green Heating & Air Conditioning LLC
Green Heating & Air Conditioning LLC
5.0(
113
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Frederick, PA and surrounding areas

In business since 1985

Free estimates

Credit card accepted

"We were doing some upgrades in our older house and I wanted to have central A/C and to remove the old baseboard heating system. I contacted a couple of the larger A/C contractors and they all came in around the same price while using different manufacturers and in some cases even different sized systems. I found an ad for Green Heating and called Dan who quickly scheduled a visit. I liked Dan from the start. He's down to earth and personable. His price was excellent, he was a couple thousand dollars cheaper than one of the other contractors while quoting almost the same equipment (one of the components that Dan used was a new version than the other guy quoted). When we were finally ready for the installation, Dan worked with me to schedule the installation and he did it in the time promised and in the time frame he quoted. I like the system and we were very comfortable in our home this summer, which was hot and this was the first summer that we've had whole house AC. In 9 months we have had 0 issues with the system. I whole heartedly recommend Dan and will use him when general system checks or any maintenance is needed."
Additional Photos
Recommended by99%of homeowners
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Install Boiler questions, 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.

If your boiler is 20 years old, it’s time to get a new one. Although it may seem to be working fine, it’s likely eating up more fuel than it should. Also, compared to a brand-new boiler, one that’s 20 years old is probably not working as well. When you get your new unit, you’ll notice that your home is heating more quickly, and the heat is consistent throughout all the rooms.

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 cost of heating oil fluctuates rapidly based on supply and demand, but the average price is between $4.00 and $4.50 per gallon, which means filling a standard 275-gallon tank would cost between $1,100 and $1,240. Much like automotive gasoline, the price of home heating oil changes constantly, so the only way to get an accurate and current price per gallon is to contact a heating oil delivery company. Some companies also offer contracts with a set price that should be an average cost over the contract term.

An expansion tank must always be installed on the supply side, which is the side where the boiler sends water out to heat the systems. That placement allows the water to push against the air and condense properly as it is heated, then circulated through the system. Professional installers can recommend the best place on the supply side for an expansion tank.

The Frederick, PA homeowners’ guide to boiler installation services

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