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Guelzow Heating & Air Conditioning

"Quality Installation & Service Since 1953"

About Us

Welcome to Guelzow Heating & Air Conditioning, your trusted HVAC experts in Wisconsin Rapids, WI, proudly serving the Central Wisconsin area since 1953. Our seasoned team is committed to delivering outstanding service across a spectrum of needs, including AC repairs, AC installations, furnace repairs, water heater installations, heat pump installations, and more. At Guelzow Heating & Air Conditioning, exceptional customer service is our hallmark. We offer free estimates and flexible financing options to make your HVAC projects accessible and budget-friendly. Additionally, our 24-hour emergency services ensure we're always available to meet your urgent HVAC needs. Reach out to us today and discover why we've been a trusted industry leader 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:

Testimonials

On 8/4/2025 Tristen Behr had this to say:
A/C S stopped working during a heat wave. Joel was very prompt upon arriving on got the problem solved within minutes. Great customer service. Testimonial written by Tristen Behr on this site.

On 7/30/2025 Anonymous had this to say:
Great work Testimonial submitted anonymously directly to this site.

On 7/28/2025 Anonymous had this to say:
. Testimonial submitted anonymously directly to this site.

On 1/23/2025 Jim had this to say:
Guelzow has always been fair with my price and service

On 12/4/2024 Michael Coulthard had this to say:
I have had the pleasure of speaking with each of the employees at Guelzow Heating and Air. They are all very knowledgeable, speak to you like a person and not just a number. Angie at the front desk is just amazing and so helpful. Joel and Tyler always take time to talk with me and discuss any projects going on. HIGHLY recommend!!!

Contact Us

Guelzow Heating & Air Conditioning
2030 7th St S Wisconsin Rapids, WI 54494
Phone: (715) 423-1086
Email: main@guelzowheating.com

Where To Find Us

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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

News

🌅 Begin your summer with peace of mind, thanks to Guelzow Heating & Air Conditioning. Whether it's water heater service or residential air duct cleaning, we've got your essential summer maintenance covered. Enjoy the season knowing your home is running smoothly and efficiently. Summer starts here with us! #SummerBegins #HomeEfficiency #ExpertCare

☀️ Summer has officially started! Keep your cool with Guelzow Heating & Air Conditioning's reliable AC repair and ductless heat pumps. Our services ensure your home remains a refreshing retreat all summer long. Experience unparalleled comfort with our expert solutions. Relax, it's going to be a breezy season!

🌻 Preparing for summer fun? Let Guelzow Heating & Air Conditioning keep your home comfortable with our high-velocity HVAC systems and ductless mini-splits. Trust us for efficient installation and maintenance, so you can focus on making summer memories. Beat the heat with confidence this season! #SummerPrep #HVACExperts #StayCool

🌞 Get ready for warm summer days with Guelzow Heating & Air Conditioning! Ensure your AC is in top-notch condition with our expert AC maintenance and repair services. Don't let the heat catch you unprepared—schedule a tune-up with us today and enjoy a cool, breezy summer!

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