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Best boiler installation pros near Caseyville, IL

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TRUSTED BY CASEYVILLE, IL HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon499
    Verified boiler installation services reviews

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

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

Serving Caseyville, IL and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"My technician Keith was great. Friendly and super informative. Also too a quick look at the entire drainage system and gave my an idea of where problems will pop up the future without preventative measures (my home was built in the 50s and while the previous owners took really good care of the house nothing has been gutted and replaced yet)."
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+5

308 neighbors recently requested a quote
Recommended by73%of homeowners
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 Caseyville, IL and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"Jeremiah was excellent.  He came to my house on a Saturday to accommodate my schedule, gave me a accurate and beyond reasonable quote and scheduled/completed the work within a week.  During the install we ran into several problems which he took care of quickly without any additional cost/fuss.  He is an excellent person to work with and took care of me from start to finish.  Can't recommend highly enough; he's my go-to heating/AC guy from here on out.  He also does plumbing so... he can be your go-to person too for most issues!  Not sure where the very few negative reviews come from but anyone who isn't a pain in the rear will appreciate Jeremiah immensely.  Thanks again!
"
Working hard for you.
We do plumbing too
Look for our truck
Recommended by84%of homeowners
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 Caseyville, 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
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Caseyville, IL and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"My computer (Windows XP) was running very slow and had become almost inoperable. It was taking a very long time to process anything, especially anything to do with the internet. IE was taking 100% of the cpu most of the time. Jim worked on my computer remotely for several days defragging, cleaning, anti-virus, malware, etc., but could not get it to perform anywhere near where it should. We decided that I needed a new computer. Jim built me a new computer (Windows 7 with racing stripes). The new system works very well and I am pleased with it. When Jim switched my files over from old to new, the Kodak Easy-Share program with my pictures did not get transferred. He has promised to make that transfer when he installs a new door covering the DVD reader which was broken upon setup. I will update this review when this occurs. I am very pleased with the new system and would do it all over again if a similar situation were present.
"
2014 Super Service Award Winner!
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Recommended by97%of homeowners
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Install Boiler FAQs, answered by experts

Installation costs range from $4,000 to $12,000, depending on unit size, efficiency rating, and labor.

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.

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.

Unless they are connected to the same system, boilers and water heaters will both need their own expansion tanks. The only case they wouldn’t have separate expansion tanks is if the boiler is pulling double duty and managing a heating system while also supplying hot water for a home. In which case, you may not need a hot water heater.

A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn’t very accurate, and a dedicated pro wouldn’t use it for your home. If you talk to a pro who won’t or can’t perform a proper Manual J calculation, consider hiring someone more thorough.

The Caseyville, IL homeowners’ guide to boiler installation services

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