About Us

Your Locally Owned HVAC Contractor

A/Ccelerated Services LLC is a locally owned and run business that accentuates outstanding service by being responsive. We’re always there when you need us. Our team is dedicated to providing friendly, prompt, professional and personal service.

We know when you run a business and an air conditioner, furnace, cooler, oven or other vital equipment breaks down, you need dependable service fast. That’s why we offer same day/next day service as well as 24-hour emergency service. We are here to take that burden off your shoulders, 24 hours a day, seven days a week. We service our customers so you can keep serving your customers.

You get a real person when you call us, not a machine. No matter what time you call.

A/Ccelerated Services has been helping Michiana businesses keep things running since 2009, when we began serving the Indiana restaurant and convenience store markets from our office in Granger. We’ve continued to grow through the years, moving to Elkhart and then to Osceola in 2018. We also now service manufacturing plants, schools, colleges, nursing and care facilities, hotels and more.

A/Ccelerated Services takes pride in our work which is reflected in the satisfaction of our customers. Whether you are the owner of a small business or large corporation, our team of highly trained technicians can provide you with the heating, cooling, refrigeration and mechanical services that you need when you need it.

David Kiefer


Bill Dahmen

Vice President

Karen Dahmen



We are based in Osceola, Indiana, between South Bend and Elkhart, with a service office in Fort Wayne and our service area extends into a 40-mile radius from those two offices, reaching into Michigan. We have technicians in South Bend, Mishawaka, Elkhart, Goshen and the Fort Wayne area so our team can respond quickly to your needs. A/Ccelerated Services is licensed and bonded in Indiana and Michigan.