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A Little About Us

Based out of Madison, South Dakota, we opened our doors in 1983 as a local family owned and operated business. We have been in the same location for nearly 28 years now and specialize in selling plumbing, heating and air/ventilation products from more than 100 different manufactures.

Founded by Terry and Bev Timmer, Timmer Supply has earned a solid reputation for providing honest service, quality parts and competitive rates.