Kevin and John are truly awesome! They're an asset to the company and the customers they serve. Thank you, very much!
Motorcycle Racer
Mar 2026
My hvac system was nearing the end of its life and the replaced my system with geothermal. We couldn’t be happier with the quality of workmanship and professionalism.
Jason Winkeler (jwinkphoto)
Jan 2026
I am really happy with the geothermal unit that they put in my house. I had a new build and Lyle really helped me with all decisions that needed to be made and Joe really did a great job with geothermal line placement. Everyone that came to my house was extremely helpful and made sure everything was working smoothly. I highly recommend working with them and could not be happier.
Guru Golf
Feb 2025
Great service, very fair pricing. If you have geothermal, this is the company to use.
Tiffany Brookmyer
Oct 2024
I’ve had to call them out twice and have two different parts replaced within a week. Their prices were very reasonable and cheaper than most other companies. Very friendly staff. Each time they’ve been able to squeeze me in same day I call. Definitely will recommend them to family and friends and use them from here on out.
Andy Branz
Jul 2024
Amazing service and professionalism. Highly recommend to everyone!
Herbert Ripperda
Apr 2024
Good service and friendly staff. They came on time. Kevin and Jake worked well as a team. They kept me updated as things progressed. I would recommend them.
Keith Fally
Feb 2024
I called Toennies this morning, and I spoke with Ike about a fault code coming up on my Water Furnace unit. Our area is in the middle of an Ice storm and no one is traveling today because of the roads. Ike walk be through a few procedures over the phone and got my unit up and running. Thanks for the top notch support.
Melissa Haley
Sep 2023
My technician came out to service my A/C unit within hours of my call. He was quick and efficient and gave pointers on how to avoid issues in the future.
Heather & Larry M
Jul 2023
Excellent customer service. The best technicians. They know geothermal and are the experts in the metro east. Installation and repairs are both in their expertise. I'll continue to do business with them and I trust them greatly.
Alim Muhammad
Kevin and John are truly awesome! They're an asset to the company and the customers they serve. Thank you, very much!
Motorcycle Racer
My hvac system was nearing the end of its life and the replaced my system with geothermal. We couldn’t be happier with the quality of workmanship and professionalism.
Jason Winkeler (jwinkphoto)
I am really happy with the geothermal unit that they put in my house. I had a new build and Lyle really helped me with all decisions that needed to be made and Joe really did a great job with geothermal line placement. Everyone that came to my house was extremely helpful and made sure everything was working smoothly. I highly recommend working with them and could not be happier.
Guru Golf
Great service, very fair pricing. If you have geothermal, this is the company to use.
Tiffany Brookmyer
I’ve had to call them out twice and have two different parts replaced within a week. Their prices were very reasonable and cheaper than most other companies. Very friendly staff. Each time they’ve been able to squeeze me in same day I call. Definitely will recommend them to family and friends and use them from here on out.
Andy Branz
Amazing service and professionalism. Highly recommend to everyone!
Herbert Ripperda
Good service and friendly staff. They came on time. Kevin and Jake worked well as a team. They kept me updated as things progressed. I would recommend them.
Keith Fally
I called Toennies this morning, and I spoke with Ike about a fault code coming up on my Water Furnace unit. Our area is in the middle of an Ice storm and no one is traveling today because of the roads. Ike walk be through a few procedures over the phone and got my unit up and running. Thanks for the top notch support.
Melissa Haley
My technician came out to service my A/C unit within hours of my call. He was quick and efficient and gave pointers on how to avoid issues in the future.
Heather & Larry M
Excellent customer service. The best technicians. They know geothermal and are the experts in the metro east. Installation and repairs are both in their expertise. I'll continue to do business with them and I trust them greatly.