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Best boiler installation pros near South Beloit, IL

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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon405
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in South Beloit - Updated Nov 2026

Carlson Heating And Cooling
4.9(
127
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving South Beloit, IL and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"Went wonderfully. Mike came on time, took my motor to a parts supplier to match it up, came back to install it, and charged me a very low price..."
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6 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Innovation Heating & A/C
Innovation Heating & A/C
5.0(
8
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving South Beloit, IL and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

We are a family-owned business, founded by Oscar Contreras in Rolling Meadows IL, and we're grown to be an HVAC leader in Northwest Suburbs. We're proud to say that most of our customers are repeat customers. The reason for that is clear. We offer superior craftmanship, honest communication, and great clear service. We work together with a common goal of bringing happiness and satisfaction to all our customers. With this goal in mind, we offer honest opinions regarding services & installations. We take pride in every aspect of our business from a simple service call to the most difficult installations. We have built our business on recommendations by word of mouth on behalf of satisfied customers. If you need a service, installation or have a question, please give us a call @ (224)-558-1516

Recommended by100%of homeowners
Avatar for ThermaTek Heating and Air
ThermaTek Heating and Air
4.5(
13
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving South Beloit, IL and surrounding areas

In business since 2017

Emergency services offered

Credit card accepted

Welcome to ThermaTek Heating and Air. We are excited to exceed your expectations! As industry professionals, we will handle all your needs with the high-quality expertise and attention to detail your home or business deserves. We offer competitive prices and customer satisfaction is our number one priority. Call us today for your free estimate!

Install
Install
Install
Install
Install

+8

Recommended by90%of homeowners
Avatar for Carz R-Us
Carz R-Us
4.7(
7
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving South Beloit, IL and surrounding areas

In business since 2009

Emergency services offered

Credit card accepted

Carz R' Us is a General Automotive Repair Shop. We are family owned and have the highest quality of technicians that will keep your vehicle well maintained very cost effectively. Our goal is to perform preventative maintenance rather than allowing your vehicle to have major issues due to lack of routine items. Examples are coolant flushes, transmission flushes, brake pads before they are grinding into the rotor, etc. We also offer life time warranties on premium parts, which really helps to save money long term.\nIf you live in the Harlem School District mention this and you can be entered in to our Harlem Program and always receive 5% off any service and 5% will be donated back to the selected program of the month for Harlem School District. May's selected program of the month is Band!

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Recommended by100%of homeowners
Heath's Heating and Cooling
5.0(
4
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving South Beloit, IL and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"Prompt, professional, and decent price. Not only did he fix our furnace for the quoted price, he took time to give us pointers on things to do if it happens again. Also gave preventative tips. I will definitely utilize his business when needed and recommend this business to anyone in need."
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Recommended by100%of homeowners
OG Construction
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 South Beloit, IL and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"Install went great. We were very well taken care of. Jeremy and Dylan took excellent care of us and went above and beyond to make sure our furnace was in working order. I will recommend them to anyone I know seeking HVAC or electrical work."
High efficiency furnace
High efficiency furnace
High efficiency furnace
High efficiency furnace
High efficiency furnace

+7

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

All modern boilers are condensing boilers because they’re the most efficient type. Instead of extra heat leaving through the flue, these boilers trap the heat and use it to heat the house. Whether you choose a combi boiler, system boiler, or regular boiler, you can opt to get a condensing system. If you have an old boiler that’s not a condensing boiler, it’s a good idea to get an upgrade.

Coolant and antifreeze are technically not the same thing. The difference between the two is the ratio of water to other chemicals. True antifreeze is mainly made up of either ethylene glycol or propylene glycol, while coolant comprises one part antifreeze and one part water. However, the terms coolant and antifreeze are often used interchangeably, even by pros.

It takes about five to 10 minutes for heat to reach a radiator, then about one hour until the radiator fully heats up a room. The exact duration depends on the size of the room and how far away the radiator is from the boiler heating system. Heating up an entire house could take up to two hours.

Most propane boilers last 15 to 20 years with regular maintenance and proper care. The lifespan depends on the quality of the unit, proper installation, and the level of maintenance. Investing in annual service can maximize longevity and efficiency. Routine inspections and timely repairs prevent early breakdown, ensuring your boiler heats your home for years to come.

The best time of year to purchase or replace an HVAC system, including components like an air conditioner or furnace, is during the off-season—spring and fall. During these periods, HVAC professionals are less busy than in summer and winter, when extreme temperatures create urgent demand. Shopping during the off-season can lead to savings of 10% to 15% on an AC unit and allows you more time to find the best deal and other cost-saving incentives. Typically, air conditioning units go on sale in the fall after demand drops, while furnace prices tend to decrease in the spring.

The South Beloit, IL homeowners’ guide to boiler installation services

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