Site Navigation


Guelzow Heating & Air Conditioning

"Quality Installation & Service Since 1953"

About Us

Guelzow Heating & Air Conditioning is a trusted HVAC contractor located in Wisconsin Rapids, WI. Serving the Wood County area since 1953, our experienced team specializes in a wide range of services including AC repairs, AC installation, furnace repairs, water heater installation, heat pump installation, and more. At Guelzow Heating & Air Conditioning, we understand the importance of providing exceptional customer service. That's why we offer free estimates and financing options to make your HVAC projects more affordable. We also provide 24-hour emergency services, ensuring that we are always available to assist you in case of any HVAC emergencies. Don't hesitate to give us a call today and experience the quality service that has made us a trusted name in the industry for over 65 years.

Our Story

Welcome to Guelzow Heating & Air Conditioning, your trusted HVAC Contractor serving the Wisconsin Rapids, WI area since 1953. With over six decades of experience, we have built a solid reputation for providing top-notch heating and air conditioning services for residential and commercial clients alike. Our commitment to quality workmanship, exceptional customer service, and reliable solutions sets us apart as a leader in the industry.

At Guelzow Heating & Air Conditioning, we specialize in a wide range of HVAC services to meet all your heating and cooling needs. Our team of skilled technicians is trained and certified to handle everything from in-floor heating installation to water heater installation, residential air duct cleaning, AC maintenance, AC repair, unit heaters, ductless heat pumps, ductless mini splits, gas fireplaces, furnace repair, furnace maintenance, radiant tube heaters, heat pumps, new construction installation, oil furnaces, boilers, hydronics, water heater service, high velocity HVAC systems, and more.

We understand the importance of a comfortable indoor environment, which is why we offer 24-hour emergency services to address any urgent heating or cooling issues that may arise. Our team is always ready to respond promptly and efficiently to ensure your comfort and safety. Additionally, we provide free estimates for all our services, allowing you to plan and budget for your HVAC needs with ease. We also offer flexible finance options to make our services more accessible and affordable for our valued customers.

Whether you need routine maintenance, repairs, or a new HVAC system installation, you can count on Guelzow Heating & Air Conditioning to deliver exceptional results that exceed your expectations. Our dedication to quality, professionalism, and customer satisfaction drives everything we do, and we take pride in helping our clients create comfortable and energy-efficient indoor spaces.

As a locally owned and operated business, we are deeply rooted in the Wisconsin Rapids community, and we are committed to serving our neighbors with integrity and excellence. When you choose Guelzow Heating & Air Conditioning for your HVAC needs, you can rest assured that you are receiving the best service possible from a team of experienced professionals who care about your comfort and well-being.

Contact us today to schedule your HVAC service or to learn more about our comprehensive heating and cooling solutions. Let Guelzow Heating & Air Conditioning be your trusted partner for all your HVAC needs in Wisconsin Rapids and the surrounding areas.

Areas Served

Wood County, WI | Waushara County, WI | Portage County, WI | Juneau County, WI | Adams County, WI | Marathon County, WI | Waupaca County, WI | Wisconsin Rapids, WI

What We Offer

Our Specialties include:

Our Services include:

Our Brands include:


On 7/16/2024 Linda M. had this to say:
Professional, a great job done! Many thanks to Tom, Matt and Caleb for all their hard work and putting up with all are questions. Couldn't have had a better team working in our home. Highly recommended.

On 7/12/2024 Daniel Kuspa had this to say:
Same day service, knowledgeable technician, friendly staff. Would highly recommend Guelzow HVAC!

On 6/19/2024 Fran Kostyn had this to say:
Of course my furnace went out on the hottest day and therefore no AC. Serviceman came out same day. New furnace installed 2 days later. Servicemen very polite and knowledgeable. Showed me everything I needed to know. Cleaned up after themselves. Very satisfied with the service. Would highly recommend them. Enjoying cool air. Thanks again.

On 6/6/2024 B-Dog Piper had this to say:
The Guelzow team just installed our new central air. Couldn’t have asked for a more polite and efficient crew. They were on time (early actually!) and worked till it was running cool! Highly recommend!

On 4/16/2024 Rick Vela had this to say:
Ryan from Guelzow's came out and solved our compressor issues within 20 minutes. Ryan was very professional, friendly and made several helpful suggestions in maintaining our HVAC system. I am so glad we chose Guelzow to install our HVAC system. And I think everyone at Guelzow is great, but I definitely have to give kudos to Ryan!

Contact Us

Guelzow Heating & Air Conditioning
2030 7th St S Wisconsin Rapids, WI 54494
Phone: (715) 423-1086

Where To Find Us

Follow us on Facebook
Follow us on Yelp

Payment Types Accepted

American Express, Cash, Personal Checks, Debit Cards, Discover, MasterCard, Visa

Our Hours

24 Hour Emergency Service

Holiday Hours May Vary. Please Call For Details.

Monday: Open 24 Hours 24-Hour Emergency Service
Tuesday: Open 24 Hours 24-Hour Emergency Service
Wednesday: Open 24 Hours 24-Hour Emergency Service
Thursday: Open 24 Hours 24-Hour Emergency Service
Friday: Open 24 Hours 24-Hour Emergency Service
Saturday: Open 24 Hours 24-Hour Emergency Service
Sunday: Open 24 Hours 24-Hour Emergency Service




Terms of Use
Privacy Policy