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  • Average homeowner rating star icon4
    Average homeowner rating
  • Verified reviews icon11
    Verified boiler installation services reviews

Verified Reviews for Boiler Installation pros in Mascoutah, IL

*The Angi rating for Boiler Installation companies in Mascoutah, 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 Mascoutah, 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 October 02, 2026

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

Avatar for Tiger Plumbing, Heating, Air Conditioning, & Electrical Services
Tiger Plumbing, Heating, Air Conditioning, & Electrical Services
3.4(
357
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install

Serving Mascoutah, IL and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"I have used the company many times. Two technicians came out for the tuneup and completed the job in about 2 hours. The company has also replaced the furnace and AC in the past. They are very thorough and professional. The staff is also very friendly and available for service. I am a member of their club which makes them easily accessible to me."
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+5

312 neighbors recently requested a quote
Recommended by73%of homeowners
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Avatar for Dan Sliney Handyman
Dan Sliney Handyman
New to Angi
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Mascoutah, IL and surrounding areas

Approved

Property manager with 25 years experience fixing thing that break. Plumbing and electrical repair.

2 neighbors recently requested a quote
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American Appliance Service
4.9(
606
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Mascoutah, IL and surrounding areas

In business since 1961

"American Appliance Service was wonderful - extremely responsive, communicative, on-time, polite, knowledgeable, etc. Highly recommend. Our serviceman was Vic (I think he's the owner) and he installed a new ice maker in our Samsung refrigerator and installed a new lower heating element in our KitchenAid oven."
Recommended by98%of homeowners
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Avatar for Vitt Heating & Air Conditioning Co Inc
Vitt Heating & Air Conditioning Co Inc
4.7(
161
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Mascoutah, 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
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Mascoutah, IL and surrounding areas

In business since 1999

Free estimates

Emergency services offered

"Everything went well. The technician was on time, courteous, thorough, and even did some extra hook-up work for us so that we were ready when our new dryer arrived."
Before Vent Cleaning
After Vent Cleaning
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Recommended by92%of homeowners
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Avatar for Froggy's Heating & Air LLC
Froggy's Heating & Air LLC
4.2(
143
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Mascoutah, IL and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"I provided the filter and they installed it.  Everything went well.
"
Working hard for you.
We do plumbing too
Look for our truck
Recommended by84%of homeowners
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JMW Mechanical Heating & Cooling
4.7(
15
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Mascoutah, IL and surrounding areas

Credit card accepted

"Very professional company. He returned my call promptly, came out to install my water heater in timely manner, and followed up after job was finished. He went above and beyond to make sure everything was up to code. I have no negative feedback for this provider."
Recommended by92%of homeowners
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Avatar for Gant Heating and Cooling
Gant Heating and Cooling
5.0(
10
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Mascoutah, 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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DrainMaster tech llc
5.0(
13
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Mascoutah, IL and surrounding areas

Your satisfaction is very important to us, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today. \n

Recommended by100%of homeowners
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Showing 1-10 of 36
Install Boiler FAQs, answered by experts

Depending on the size of your home and system, as well as any upgrades or add-ons you choose, it may take between three and five days to completely replace an existing HVAC system from start to finish. Your contractor should be able to give you an estimate before they begin the actual replacement.

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 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.

When winter rolls around, and you turn the heat on for the first time in a year, it’s normal to sense a light odor. This could smell a little like burning because some dust has gathered in the heating unit over the warm months and will fade away shortly after. However, there are some smells you should watch out for and take caution around: an egg-like sulfur smell or an electrical burn odor would indicate there’s something wrong. Turn it off and call a professional for maintenance as soon as possible. 

Radiators are a popular home heating choice in older homes, but they are becoming less common in new-construction homes. According to a 2022 report by Elements Visual Capitalist, only around 1.3% of new single-family homes have radiators and similar heating systems, such as baseboard heating.

While they may not be as popular as they once were, radiators today come with more energy-efficient features that can make them practical for modern homeowners.

The Mascoutah, 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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