Kleinsasser Heating & Cooling

03/20/2026

Go Freeman Flyers!!
The Kleinsasser’s nominate The Vintage Vault! Vintage Vault Floral + Coffee Dawn Mensch-Walz

01/23/2026

With everyone else closing due to the cold, it seems fair to remind you all that
Kleinsasser HEATING is open!!

If you have trouble, call the HOTLINE 605-925-4946
If we don’t answer, LEAVE A MESSAGE!!! We will get to you.

Also, a little effort on your part can save us all a lot of time. It’s greatly appreciated if you can check the simple things such as:

Is your air filter clean?
Do you have fuel in the tank?
Are the vent pipes clear of snow and ice?
Are the breakers on?
Are the thermostat batteries good?
How many times does the diagnostic light blink?

Thank you.

10/09/2024

Highs in the 50’s next week means it’s furnace season!! CALL THE HOTLINE SOON to get your seasonal furnace service.

08/27/2024

This fleet of service trucks, as pictured 45 years ago, reflects one of Freeman's three-generation family businesses, Kleinsasser Heating and Cooling. The photo appeared in a special Freeman Centennial section of the May 30, 1979 Freeman Courier.

Calvin Kleinsasser founded Kleinsasser Plumbing and Heating in a 24x24 horse barn at 412 East Sixth Street in Freeman in 1950. "Freeman Facts, Freeman Fiction," published in 1979, notes that he began with one employee and a 1948 Studebaker pickup. In 1960, he built a 54x42 Quonset over the existing building; that's the familiar building in the photo and that we know today. In 1975, he expanded with a 40x60 foot addition. By 1978, the operation included seven Ford service trucks and 13 employees. The company had approximately 3,000 customers in its service area, which had grown to include Mitchell and Sioux Falls with shops at the I29-Tea exit and in Mitchell.

Calvin semi-retired in 1991 and turned the business to his son, Collin, but continued to work until 1998; he died in 1998. Collin - who had joined the business immediately after graduating from Freeman High School in 1975 - and his wife, Jane, continued the family business until his death in 2009. Their sons, Morgan and Mitchell, have continued as the third generation of the business that continues the family name and remains in its landmark location on Sixth Street, 74 years after it was established.

We piece together details about businesses like this from sources in our archives, including photos, books, issues of the Courier, and obituaries that we collect and keep as part of the historical record.

Preserving and sharing the historical record is central to our mission. Both our archives and exhibit halls are open for research and touring. We're open Mondays through Saturdays through September. We switch to weekday afternoons from noon to 4 from October through May. For more information call 605-925-7545 or go to https://heritagehallmuseum.com.

04/15/2024

Nobody wants to be like this lady once the summer heat rolls in!!

——GET YOUR A/C SERVICED EARLY——

Call the HOTLINE today for your spring tune up!!

1-605-925-4946

04/04/2023

Warmer weather is ON THE WAY!!

Please DO NOT WAIT until the last minute to see if your air conditioner works!

If the outdoor temperature is at or above 65 degrees (hopefully Saturday), it is ok to turn your air conditioner on and make sure the outdoor unit runs and cold air is blowing out of your vents.

Whether it works or not, call us on Monday to get on our spring service list and prevent mid-season breakdowns!!

The HOTLINE numbers are:
1-605-925-4946
1-800-535-1603

10/04/2022

Time to “kick the tires and lite the fires” winter is on the way!!

05/31/2021

10/12/2020

07/04/2019

Thank you all for keeping us so busy! We are giving our employees a much needed holiday break.