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Best boiler installation pros near Fairfax, OH

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    Average homeowner rating
  • Verified reviews icon291
    Verified boiler installation services reviews

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

Avatar for One Hour Heating & Air Conditioning - Cincinnati
One Hour Heating & Air Conditioning - Cincinnati
4.0(
93
)
Oil Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install

Serving Fairfax, OH and surrounding areas

Approved (Corporate)

In business since 1954

Emergency services offered

Customers say: Quick response

"Service technician was very professional. He took time to show me what had to be fixed and explained how it would improve furnace performance. He took the time to make certain I was satisfied with the outcome. He tested the systems to check they were in good working order. Finally we have excellent customer service."
One Hour Team
246 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Chilly Heating & Cooling
Chilly Heating & Cooling
5.0(
150
)
Boiler or Radiator Heating System - Install or Replace

Serving Fairfax, OH and surrounding areas

In business since 2011

Free estimates

Emergency services offered

"I have used Chilly Heating and Cooling for years for seasonal tuneups, maintenance and whole system replacements. Sam's prices are fair, he is trustworthy, he arrives on time and always conducts himself in a respectful and professional manner. He is my go to guys for all HVAC matters."
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+72

3 neighbors recently requested a quote
Recommended by96%of homeowners
Hi Tech Duct Cleaning Inc
4.8(
148
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Fairfax, OH and surrounding areas

In business since 1995

Free estimates

"EXCELLENT EXPERIENCE. THEY MADE SURE I KNEW EXACTLY WHAT I WAS GETTING, WHAT IT INVOLVED, AND HOW IT WORKED, BEFORE THEY EVER SHOWED UP. THEY WERE RECOMMENDED BY BOTH ANGIE'S LIST AND OUR HVAC COMPANY ADAM'S"
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Recommended by92%of homeowners
Avatar for Flow Rite Plumbing
Flow Rite Plumbing
4.7(
711
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Fairfax, OH and surrounding areas

In business since 1997

Credit card accepted

"The biggest obstacle was scheduling.  The Angie's List confirmation email did not include the instruction to schedule on the Flow-Rite web site.  It took 3 or 4 emails to clarify that which delayed getting the work scheduled. 
The replacement parts worked fine with the exception of some excess plastic on the valve which prevented a tight seal and thus lead to a running toilet.  It took a few minutes with the razor blade to cut the excess off and allowed the seal to form properly.  This probably should have been done by the installer.
"
Finished product
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+6

Recommended by94%of homeowners
Hauser Heating & Air Conditioning
4.7(
274
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Fairfax, OH and surrounding areas

In business since 1978

Free estimates

Emergency services offered

"Last winter our old furnace wasn't working properly. Called Hauser and they came to our house within 2 hrs as furnce not working and very cold. Heat exchanger bad in an old furnace. Got quotes on 3 different furnaces that night and it was installed the very next morning! Since installation their service has been 5 star. Highly recommend Hauser Heating & Air."
CARRIER GAS FURNACE
CARRIER GAS FURNACE
CARRIER GAS FURNACE
CARRIER 80% GAS FURNACE
TEMPSTAR 80% GAS FURNACE

+7

Recommended by93%of homeowners
Avatar for NEW CLIMATE HEATING & AIR CONDITIONING
NEW CLIMATE HEATING & AIR CONDITIONING
4.5(
18
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Fairfax, OH and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"These guys were amazing. They were the first ones to call after I submitted a request on Angie's List, and they came out the same afternoon. They did everything they could to keep the price of the repair down, including calling the furnace manufacturer to see if some of the parts were covered by warranty. Then they were willing to work with me when it ended up costing a bit more than I expected (something that was out of their control.) They lent me a few heaters to put in my kids' rooms overnight since the parts place had closed for the day by the time they knew what they needed. The level of care I received from this company was incredible - not something I expected at all. I'm really happy to have worked with them, and I most definitely will be giving them my business in the future!"
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+12

Recommended by100%of homeowners
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Install Boiler FAQs, answered by experts

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.

Most home boilers will need an expansion tank. That’s because these boilers are closed-loop systems, where the water is trapped. An expansion tank is needed when the boiler heats the water and it expands, allowing air to condense in the tank to make room for the water. Other types of boilers don’t use an expansion tank, such as traditional steam boilers, but these aren’t as common. And hot water tanks may be able to use a pressure release valve instead. When in doubt, call in a pro to take a look.

Yes. In many cases, switching from an old furnace to a high-efficiency boiler can help you save money over time. You can also save money by switching from an electric boiler to a gas boiler, which costs much less compared to the energy bills an electric boil can create. Boilers are often (but not always) more efficient than furnaces, too. Then there are discounts, rebates, and incentives that can help you save on the initial costs.

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. 

No, boilers and water heaters are not interchangeable because they serve different primary functions. Boilers are used for central heating systems, providing hot water or steam to heat your home. In contrast, a water heater's purpose is to supply hot water for daily household use, such as for faucets and showers. A water heater alone cannot supply the warm water or steam needed for a central heating system.

While they are not interchangeable, it is common to have both a boiler and a water heater. In fact, a conventional boiler often works best when a water heater system is already in place. The two systems can be combined to provide both heating and hot water, either by pairing a boiler with an indirect water heater or by installing a premade combination boiler-water heater unit. For home heating, some homeowners may also opt for a furnace instead of a boiler.

The Fairfax, OH homeowners’ guide to boiler installation services

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