Call Us Today! (715) 423-1086
Guelzow Heating & Air Conditioning Service LLC


24 Hour Emergency Services 
(715) 423-1086 

In-floor heating and more in Wisconsin Rapids
Serving Central Wisconsin

We promise that we will be there whenever you need us. We have service techs on call 24 hours a day, 7 days a week, 365 days a year, because we know that the last thing you need in the dead of winter is a broken heater, or vice-versa a dysfunctional air conditioner in the middle of summer. Call on Guelzow Heating & Air Conditioning Service to provide you with the care and service that you need, whenever you need it.

Load calculation

A crucial step of our process is getting you the most efficient solution possible. We want to help you save every penny, so we take every effort to learn as much as we can about your home with a load calculation. Our estimates take no time at all, and save you plenty of money in the future.
Repair work on the in-floor heating system in Wisconsin Rapids, WI


Most homes unfortunately are heated and cooled by units that are too small or too big, resulting in higher energy costs, maintenance issues, and inconsistent temperatures.
Our in-home load calculations are completed by a trained, certified tech. You’ll learn where your home loses energy, what we can do about it, and you’ll get an estimate for a unit that is the perfect heating and cooling solution for your home.


Other services include:
  • 24/7 emergency service
  • Residential
  • Commercial
  • Service of all makes & models
  • New homes
  • Existing replacement
  • Oil heating
  • Hydronic & in-floor heating
  • Duct Cleaning
  • Fireplace Tune-ups 
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