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TRUSTED BY BELLEVILLE, IL HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon869
    Verified boiler installation services reviews

Verified Reviews for Boiler Installation pros in Belleville, IL

*The Angi rating for Boiler Installation companies in Belleville, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.

*The HomeAdvisor rating for Boiler Installation companies in Belleville, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.

Last update on July 16, 2026

Find Boiler installation pros in Belleville

American Airtemp LLC
New to Angi

Serving Belleville, IL and surrounding areas

Approved

In business since 2008

Credit card accepted

Offers commercial services

American Airtemp LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.\n

Response time10 mins
Response rate100%
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Avatar for Vitt Heating & Air Conditioning Co Inc
Vitt Heating & Air Conditioning Co Inc
4.7(
161
)

Serving Belleville, IL and surrounding areas

In business since 1954

Free estimates

Emergency services offered

"I would recommend this company to everyone. Loved they are a small local, family owned business. Our furnace-boiler went out on a Saturday, Monday morning they were out and a quote in the afternoon. They made sure we had heat before Thanksgiving day. Very professional, knowledgeable, great craftsmanship. Best price on comparable equipment out of 3 quotes. Thank you!!"
Military Discounts (retired & active)
Senior Citizen Discounts
Residential HVAC
Multifamily & Commercial Installation & Maintenance
Professionally Installed Ducts

+6

Response time3 days
Response rate100%
Recommended by91%of homeowners
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Avatar for Air Duct Doctors
Air Duct Doctors
4.7(
781
)

Serving Belleville, IL and surrounding areas

In business since 1999

Free estimates

Emergency services offered

"Duct Cleaning, advice on keeping ducts clean, and notification that there were two errors on the initial ducting installation with advice on fixing them."
Before Vent Cleaning
After Vent Cleaning
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Recommended by92%of homeowners
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Avatar for Sparks Junk Removal and Hauling LLC
Sparks Junk Removal and Hauling LLC
5.0(
20
)

Serving Belleville, IL and surrounding areas

Free estimates

Female Owned and Operated Since 1993. Sparks Junk Removal & Hauling Services has provided Foreclosure, Estate, and Hoarding Cleanout Services, Appliance and Scrap Removal Services, Construction Cleanup Services and Hauling.\n\nYou will see me at every job along with my crew!\n\nNow serving Madison, Jersey and St. Clair counties in Illinois as well as St. Louis County in Missouri.

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+15

Recommended by100%of homeowners
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Avatar for Gant Heating and Cooling
Gant Heating and Cooling
5.0(
10
)

Serving Belleville, IL and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"I had an excellent experience with Scott! Very friendly and extremely knowledgeable. During the thermostat installation procedure he discovered two issues with my AC unit (one of the fuses was blown and also one of the wires was fried) and fixed both without any additional cost. Very happy with the service and will definitely be using them in future. Thanks Scott!"
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+1

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

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.

The cost-efficiency of baseboard heaters depends on the type and how you use them. Generally, standard electric baseboard heaters can be expensive to run because they use electric resistance heating, which is less energy-efficient than systems like forced-air or heat pumps. However, hydronic and gas versions are typically much cheaper to operate. Hydronic models are more energy-efficient because they heat a liquid that retains warmth longer, preventing the thermostat from turning on and off as often. The overall running cost is also influenced by local electricity rates, your home's insulation, and your usage habits. To increase efficiency, you can use baseboard heaters for zoning, meaning you only heat the specific rooms you are using.

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.

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.

Boiler installations and replacements cost between $3,600 to $8,400. Expect to pay around $5,900 on average for a new boiler, including installation. Adding new radiators or heaters to the boiler may include separate costs if you are also upgrading those components, so the final price may be higher. To decrease costs, you can look for local energy rebates for using a boiler and wait until installers are offering discounts for a first-time installation.

The Belleville, IL homeowners’ guide to boiler installation services

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

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