Tap to Call our Office for Equipment Service, Repair, or Replacement

Help Center

At Christensen & Wisnet, our goal is to be as transparent as is reasonably possible. We have addressed common questions about our policies and how we do business and put them below. As always, please ask us if you have any questions.

We have also created our troubleshooting section, which is dedicated to helping you save money where possible, or to get a better understanding of what may be going on with your heating or cooling equipment.

If your questions aren't answered in our help area, please let us know. We are adding to this area as needed to help others.

Go To Troubleshooting Guides


Tune-Ups and Service Calls

After Hours Service

Estimates and Sales

Billing and Payments



Purchasing Furnaces

Moving from Oil to Gas

Adding Air Conditioning

Leak Searching the AC, is it worth it?

Replacing Central A/C

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)

©2019 Christensen & Wisnet, Inc. Privacy | Careers

Employee: Office Email | Tech Email | SalesBook | ServiceDesk

Tap to schedule a Tune-Up, Service Call, or Estimate