Welcome
Davis Mechanical Systems


Davis Mechanical Systems (DMS) provides mechanical contracting services in the greater Minneapolis/St.Paul Minnesota area.

DMS (formerly known as the Whelan-Davis Company ) is a privately owned company that specializes in the design, installation and servicing of refrigeration, heating and air conditioning systems.

DMS brings to the HVAC field a team of experienced and dedicated pipefitters, state of the art equipment, tools and trucks, as well as 24 hour access to our service department. The values of hard work, integrity and timely, efficient work are central to our company's beliefs/philosophy.

We are a fully insured, bonded and licensed company. DMS will provide you with the highest level of service the industry has to offer. We offer competitive bids, quality work and the personal relationship that you expect.

Our goal is to provide your projects with the highest quality and efficiency of work available in the Twin Cities area.