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About Us

Christensen & Wisnet Heating & Cooling is a family owned and operated business for over 50 years. Our Christensen family has been in the trade for nearly a century. We are a proud 5th generation family business and have earned our reputation over the years as "The Good Guys".

Christensen & Wisnet was founded by Earl Christensen and Joseph Wisnet Sr in 1966. People who have been in the valley for multiple years will remember our days as an Oil Company. We also delivered oil for many years, and in the 90's we shifted priorities to being 100% HVAC, instead of a 50/50 mix. Trading our Oil division for US Oil's Heating & Cooling company.

Today we are as strong as ever offering fast, friendly service with fair prices. We are one of the first in the nation in our industry to offer modern features such as Online Payments, Online Account Access, Fully-Automated Online Scheduling, Live Service Call Tracker and more is on the way.

We stand behind our products and services. If we make errors we will make it right. We hope to be worthy of your choice. We know there are pages of Heating & Cooling contractors in the valley. There are over 29,000 homeowners that trust us, we would like you to be our next.

Back in the day

Our original location was at Outagamie St in Appleton, WI. We bought out the local Cities Service Oil Company to start our business. In our early days we sold Petrolium, Batteries, Lubricants, Tires, and Home Heating Oil. Earl & John Christensen were the service technicians, tending to furnaces. We sold our petroleum division to US Oil in 2001, and focus now on HVAC only.

Our office

We are located out by Fox River Mall in Appleton, WI on the same frontage road as Dick's Sporting Goods and Best Buy. We are open 8:00am to 4:30pm Monday-Friday (excluding major holidays). We feature a showroom with the equipment that we sell. If you are looking for ideas or need help with a problem stop in and talk with one of our experts. We love to help!

Locations We Serve
Focus on Technology

Technology and running our business efficiently is very important to us. While our industry in general is not known for being "cutting edge" we know that it is something that is important, because...

  1. It allows us to get to you faster than ever in case of emergency.
  2. It gives technicians more information about your equipment and service history, helping diagnosis.
  3. It offers helpful automated features you can use whether we are open or closed.
    1. Online Bill Payment
    2. Online Customer Portal
    3. Online Estimate Scheduling
    4. Online Tune-Up Scheduling
  4. It helps us eliminate human error, so things are not forgotten or delayed.

We are proud to say that most of our day-to-day software was designed and built in-house, specifically to our unique needs.

Award Winning Customer Service • Skilled Personable Technicians • Trusted by over 30,000 Homeowners in the Valley!

We Service the Appleton, Neenah, Menasha, Kaukauna, Kimberly, Little Chute, Hortonville, Greenville, and surrounding areas.

Address: 4450 W Greenville Drive. Appleton, WI 54913
Phone: (920) 734-1436 Fax: (920) 734-0929
Hours of Operation: 8:00a to 4:30p (Mon-Fri)

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