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Best boiler installation pros near Fredonia, WI

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TRUSTED BY FREDONIA, WI HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon167
    Verified boiler installation services reviews

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

Avatar for Guardian Heating and Cooling, LLC
Guardian Heating and Cooling, LLC
4.7(
82
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For BusinessOil Boiler or Radiator Heating System - Install+1 more

Serving Fredonia, WI and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"I would give Guardian Heating and Cooling 10 stars if there were a way to do that! These guys are outstanding! They showed up, after hours, to determine exactly what was causing our problem. We had already suspected it was time to replace our boiler since it had been more than 25 years old. Steve confirmed our thoughts about replacement. He quoted a fair price and scheduled a time to come back. He showed up early with the new boiler and within hours after their arrival, we were up and running. We had a little hiccup the next day, as things seemed to be working too well. We called Steve and he was at our house in minutes. We already wondered if the thermostat wasn't able to keep up with the new boiler set up. 30 minutes later, we had a new thermostat and everything was working properly. Steve and Adam were friendly and professional. Our basement was cleaner when they left than before they arrived. Their prices were reasonable and there were no surprises, price wise. We were given a quote and that was what we paid. It's refreshing to find people like these guys!"
Boilers
Boilers
Boilers
Garage infloor
Sun Room

+4

Response time7 hrs
12 neighbors recently requested a quote
Recommended by100%of homeowners
Sparky's Electical Service
4.7(
200
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Fredonia, WI and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Sparky was great.  He assessed the problems and fixed all of them in an efficient manner.  He really knows his stuff.  My track lighting was totally screwed up - he had to get up in the attic and run new wires and install a new switch.  He knocked it out of the park.  6 months later, all things that he worked on are working great.  Highly recommend his services."
Recommended by95%of homeowners
Avatar for Faithful Heating & Air
Faithful Heating & Air
4.5(
53
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Fredonia, WI and surrounding areas

In business since 2016

Free estimates

Emergency services offered

"They came out and looked over the A/C unit. I told him it makes a very loud banging when it starts up and that the company who installed it told us that was normal and it was working fine. Once he was done cleaning the unit, he went to restart it and it tripped the breaker. So he took it apart and found that when it was installed, someone had pinched a wire, cutting the insulation and causing it to short out on the frame of the A/C unit. He fixed that, reassembled the unit and restarted it. It's still a loud start, but not nearly as loud as it was. He informed me that our A/C is a builder grade model and unfortunately it's not the best on the market so it's going to be louder than we would like. Once he was done working on the A/C, he came in and took a look at our furnace to make sure it wasn't hooked up wrong also. Definitely will be calling on Faithful again."
Recommended by89%of homeowners
Nordic Air Heating and Cooling
5.0(
9
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Fredonia, WI and surrounding areas

We are a growing fast paced southeastern WI locally owned HVAC company that provides skilled and professional work with over 20 years experience in the Heating and Cooling industry we do it all from Furnace and AC tune ups to complete new home HVAC system designs! Not only is the quality of work guaranteed to exceed expectations but the cost of our work is also guaranteed to be the best in the industry with our unique pricing structure that under cuts the competition!\n

Recommended by100%of homeowners
PRO-TECH MECHANICAL INC
4.8(
9
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Fredonia, WI and surrounding areas

In business since 1997

Emergency services offered

Credit card accepted

"The installation of the new furnace was good. We have not had any issues with it. The workers were pleasant to deal with. The salesperson was helpful and advised me what furnace I should install. I was happy with the service by this company."
Recommended by87%of homeowners
Sears Heating and Cooling - Milwaukee
4.3(
23
)
Boiler or Radiator Heating System - Install or ReplaceGas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Fredonia, WI and surrounding areas

In business since 1893

Free estimates

Warranties offered

"Very prefessional and thorough. Left my place clean after the install, and even loaned me some goo-be-gone from their toolbox for a project that I was working on while they were installing my furnace. They reviewed what they did at the end, and gave me a card so that I could call with any issues. Would highly recommend Sears and their contractors."
Recommended by89%of homeowners
Showing 1-10 of 26
Install Boiler FAQs, answered by experts

Costs range from $3,000 to $7,500, depending on system size and efficiency.

Costs depend on system size, efficiency rating, and additional features like zoning or smart controls.

Chilled water HVAC systems use water instead of traditional components and refrigerants. They're more common in commercial settings than residential ones but are slowly being adopted by some homebuilders to cool homes. As the name implies, the system keeps the water chilled at 40 degrees and circulates it through water coils. The water absorbs the heat from your home and drains outdoors. Condo apartments are more likely to have chilled water HVAC than single-family homes because this system is designed to cool several rooms or large areas individually.

You can save money on heating oil through a combination of improving home efficiency and smart purchasing strategies.

Home Efficiency and Usage:

  • Improve Insulation: Ensure your home, especially the basement and attic, is well-insulated and sealed against drafts to prevent heat leakage.

  • Manage Your Thermostat: Use a properly calibrated and programmable thermostat. Lower the temperature by a few degrees, particularly when you are away from home or asleep.

Purchasing Strategies:

  • Buy in the Off-Season: Order heating oil during the summer months when prices are generally at their lowest. This strategy is most effective if you have a large primary tank or a separate storage tank to accommodate bulk deliveries.

  • Consider a Delivery Contract: Some companies offer contracts with a set price for the term. This can lead to savings if market prices for oil increase, but you might pay more if prices drop.

You should get anywhere from three to five quotes for HVAC replacement to get an idea of the average cost of a new unit. Although this quote-collecting process can be time consuming, it allows you to compare what work is required, what type of unit you should install, and how much you should expect to pay for the service.

The Fredonia, WI homeowners’ guide to boiler installation services

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