It’s Our 77th Year

For generations, the Twin Cities area has depended on Ditter for their year-round heating and cooling needs.

Free Humidifier Water Panel with Maintenance

Mention this offer when you schedule your maintenance and receive a free humidifier water panel.

Air Conditioning Repair Medina, MN, Has Trusted Since 1946

At Ditter, we’re not comfortable until you are.

That’s our promise to you. Ever since 1946, Ditter has served the HVAC needs of homeowners and businesses in the western Twin Cities metro area.

As one of the oldest heating and cooling companies in the region, we’ve made good on that promise to thousands of residential and commercial HVAC customers. Chances are, we’ve been in your neighborhood many times to provide trusted air conditioning repair, air conditioning installation and more.

Your comfort is our top priority. We pride ourselves on providing you with honest advice, expert service and quality equipment for all of your home comfort and indoor air quality needs.

Our Services



Indoor Air Quality

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Award-Winning Comfort

We’re happy to announce that we’ve won the Centurion Award from Lennox!

This honor recognizes dealers like us who are community leaders and embody Lennox’s brand promise in their respective service areas.

In the words of Lennox, we’ve “set the standard for customer service and installation quality and execute an annual plan that drives growth and profitability through a foundation of employee development and training.”

Get a breath of fresh air

Our indoor air quality test detects dangerous allergens, chemicals and gasses in your home.

Family Owned Since 1946

Ditter service vehicles have been a familiar sight in many Minnesota communities for decades. Serving the Twin Cities western suburbs, our expert service technicians and installers have experience with all air conditioner, furnace, heat pump and indoor air quality system brands. Whether you need routine maintenance, emergency repair or better air quality, Ditter will make sure you are comfortable.

Learn more about who we are.

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Emergency Service

Day or night, you can call on Ditter for a quick response and expert service.

Brands We Service

With more than 76 years of experience, we have worked with every brand of equipment in the industry.

Hear from our customers

“I have used Ditter for years on many projects and they have always provided great service, honest answers, at a fair price. I am most thankful for them getting a tech to my house on July 4th a few years back on the hottest day of the year and getting our AC working again. THANK YOU DITTER!”

Casey K.