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Serving Charles City, IA

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For 50 years Charles City residents have been able to turn to a name they can trust for all of their plumbing, heating, air conditioning and other service needs – Mills, Inc, and in 2014 a new leader is leading the business, Kelvin Keifer


When it started back in 1963, the business included refrigeration and other appliances its first couple of decades, but today the business focuses strictly on HVAC, plumbing and related work.


And that’s pretty much our mainstay,” says Mills-Inc. owner Kelvin Keifer.


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A licensed staff that installs geothermal systems

Mills-Inc. employs an experienced, professional staff of eight, licensed in areas relating to the business.

Throughout his years the business has seen a lot of changes, especially with the implementation of technology. In order to keep up with the trends the other licensed employees take continuing education courses every two years.

One newer area in which Mills-Inc. has particular expertise in is geothermal system installation.

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Offering 24-hour HVAC and septic service

That’s one thing not everybody does,” Mills-Inc says of the energy-efficient option often included in today’s new home projects,” adding that Mills-Inc. carries TTherm-Geo products.

Besides technology changes, there are always new faces walking into the store looking for help with various projects around the house. The business also has a licensed pump technician to address customers’ well service and septic system needs.


Mills Inc is open Monday through Friday, from 8:00 AM to 5:00 PM and serves a 20-mile radius in and around Charles City. To speak with an on-call employee at any time of the day or night, call the office at 641-228-2545. The recorded instructions will help you get in touch with someone 24-hours a day.

Creating room for future septic work

As Keifer looks to the future he hopes to eventually create a well and septic division. Another long-term goal includes finding a facility that can house operations on one level.

“All of the parts we have are stored in the basement,” Keifer said. Relocating some of the aspects to another facility will allow growth and expansion of their current services.Although looking for a warehouse type facility for operations, Mills, Inc. will maintain it’s presence on Main Street.

“I have no intention of selling (the Main Street) building or moving the offices out of it,” he said.


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