Started in 1908, H.A. Thompson & Sons has been providing high quaility plumbing, heating, air conditioning and mechanical contractor services not only in Bismarck, but across the region in North Dakota, South Dakota, Minnesota and Montana. 

In 1991, we became a LINC Service Contractor, allowing us to provide cost effective Environmental Maintenance Agreements to building and business owners throughout our region. Currently we maintain the mechanical heating and cooling systems of more than 600 buildings throughout the northern plains. 

Today we continue to provide legendary service for commercial and residential heating, cooling, and plumbing services throughout Bismarck, Mandan and surrounding area.  In addition, our commercial operations in Fargo, Grand Forks and Minot allow us to provide services throughout the region.  We are looking forward to serving you for the next 100 years!

H.A. Thompson & Sons

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H.A. Thompson & Sons

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