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Top-Rated Geothermal heating or cooling system installers in Harristown - Updated Nov 2026

Avatar for Abbott HVAC
Abbott HVAC
4.7(
32
)
Geothermal Heating or Cooling System - Install

Serving Harristown, IL and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"Our air went out at the start of summer during an extremely hot period (90's+!). Due to the way our place is set up, it was a REALLY tough install that required using a crane to get the AC on the roof, and pulling the water heater - which it turns out needed replacement also (ugh!). Rich came to our rescue, even loaning us a portable AC that we could use until the install could be done. He worked hard, and coordinated well with the plumber we had in to pull/replace the water heater. He was friendly, very flexible and did good work. We're very happy with the service he gave us. On top of all of this, his price was very reasonable. Much less than the other guys and some of them took one look at our system and flat out refused the job! I highly recommend you call Rich and skip some of the "big names" in town that want to charge more, and work less hard for you. Its rare to find service companies these days with a solid work ethic, who deliver great service for a fair price."
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+37

Recommended by93%of homeowners
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)
Geothermal Heating or Cooling System - Install

Serving Harristown, IL and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Jim is super nice. He started working on my computer right away and had it repaired very quickly. I was nervous about everything he was doing to it so he talked with me on the phone about it while he worked and he updated me all along on his progress. He also took the time to explain everything in detail so that I would understand what was causing the problems and how to avoid them in the future. He's not at all cocky or arrogant like some computer specialists are who think they are smarter than they really are. I like that he didn't do anything to my computer without notifying me first. I will definitely be using him again in the future!!!"
2014 Super Service Award Winner!
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Recommended by97%of homeowners
Avatar for BOB BERGEN HEATING & AIR COND
BOB BERGEN HEATING & AIR COND
4.8(
4
)
Geothermal Heating or Cooling System - Install

Serving Harristown, IL and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"Central air went out on a Sunday. Called and they responded within an hour - impressive. We were given an estimate to replace the outside unit which we thought was pretty high. We were told they could install the unit the next day for $2400 if the unit came from them. We chose to purchase the unit ourselves and have them install it. We had the unit we purchased at our house on Tuesday morning. Each time we called (we received a quick response) to see where we were on the list for installation, we received a later and later date. We were a bit disappointed by that. They arrived Friday afternoon after 3:00 and it only took them 2.5 hours to install which was impressive. We saved $1000 by buying the unit ourselves so the wait was worth it.
We do realize it was one of the hottest weeks we could have had for this to happen and understand how busy all Heating and Air companies were. We would gladly have them return for any service necessary."
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Recommended by100%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Geothermal Heating or Cooling System - Install

Serving Harristown, IL and surrounding areas

In business since 1971

Credit card accepted

"Well, the first time the replacement was ordered it was the wrong one, which of course, delayed the installation a week. When it was finally installed I had to pay an additional $850 for code upgrades. This I was not informed of by Home Shield. Then we noticed that there was water on the garage floor and found that the pipe coming in from the wall was leaking at the wall so had to call the plumbing company back out to fix it. They first tried to say it was not their fault but since there wasn't a leak before they installed they did fix it. I have used Home Shield a few times before and never had a problem. Some of the companies they use are not the best so you have to research them before you commit. I have found HS service to be good if you do your homework. At the end of the day I was without hot water for almost 3 weeks but it was do to the plumbing company they sent out."
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+2

Recommended by65%of homeowners
Avatar for Choice Home Warranty
Choice Home Warranty
4.0(
5,678
)
Geothermal Heating or Cooling System - Install

Serving Harristown, IL and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"So far when Choice Home Warranty is needed they are right trying all there mite to complete what need that I have. I call about my heating system today and they started right then trying to locate a technician to repair or as they say replace. I just know it's very cold and we need the heat very much there is small children in the home. I believe the CHW will do what they say they'll do and more."
Recommended by81%of homeowners
King's Child Construction
4.5(
46
)
Geothermal Heating or Cooling System - Install

Serving Harristown, IL and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"Excellent!! A couple months after moving into our house, we discovered that we had a leaky roof. After calling several roofers with no response, my husband called King's Child Construction. Casey the owner answered - said he'd come out later in the day. As good as his word, he came over that night, made a recommendation on a solution, and gave us an estimate. He was back the next morning and within a couple hours or so he had our roof fixed - total was pretty much in line with his estimate. Casey is a general handyman, and we've been so impressed with his work and his attitude that we've already talked to him about doing some landscaping and repair the water damage in a month or so. And next year, we'll have him rejuvenate our wood deck. He is a really hard-working young man, and it is obvious that he takes great pride in his work. We would highly recommend him"
Decks & Porches Project
Put all new wood down on 400 ft² deck and new railings, also added a 100 ft² addition to deck
Decks & Porches Project
Decks & Porches Project
Decks & Porches Project

+30

Recommended by95%of homeowners
Avatar for Radiance
Radiance
5.0(
2
)
Geothermal Heating or Cooling System - Install

Serving Harristown, IL and surrounding areas

In business since 2019

Emergency services offered

Credit card accepted

Radiance is here to get your home back in shape. We provide a complete spectrum of Exterior Home services with professional and personal care for each client's needs. We are here to guide you and give you our advice based on your goal and dream. We believe in value. Call us today so we can turn your dreams into reality

Exterior Detail
Mobile Detailing
This is one of my last projects. 67’ Ford Galaxie 500 custom, which had a blown motor, and no fuel tank.
Mobile Detailing
Golf Cart Rewired & Electric Motor Replacement

+36

Recommended by100%of homeowners

The Harristown, IL homeowners’ guide to geothermal heating or cooling system installations

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