H A Thompson & Sons

Description

H.A. Thompson & Sons is a century-old leader in plumbing, heating, air conditioning, and mechanical contractor services, with roots in Bismarck dating back to 1908. Founded by Harry A. Thompson, the company has grown from its early installations of plumbing and heating systems to become a regional powerhouse serving North Dakota, South Dakota, Minnesota, and Montana. With such a long history, Thompson & Sons has earned a reputation for quality, reliability, and an unwavering commitment to customer satisfaction.

In the residential sector, H.A. Thompson & Sons delivers full HVAC and plumbing services throughout the Bismarck/Mandan area, and extending into Garrison and New Town. Whether it’s furnace and air conditioner replacements, water heater services, garage heater installations, or bathroom remodels—Thompson & Sons offers free estimates, financing options, and expert craftsmanship. Their residential plumbing division handles everything from faucet and toilet replacement to full basement bath finishes and sewer main rodding, using high-quality components from brands like Kohler, Delta, and Bradford White.

For commercial customers, Thompson & Sons brings decades of mechanical construction and maintenance expertise. Their commercial services include contract maintenance, repairs, retrofits, upgrades, energy conservation services, and full commercial mechanical construction (including design-build, new construction, prefab services, and repair/remodel). Trusted by building owners across the Northern Plains, H.A. Thompson & Sons maintains the mechanical heating and cooling systems of more than 1,000 buildings, placing strong emphasis on preventative maintenance to safeguard performance & longevity.

H.A. Thompson & Sons continues to deliver legendary service and mechanical solutions tailored to both homes and businesses. The company’s dedication to quality, its rich history of servicing major projects in the region (such as schools, hospitals, and utility-scale mechanical plants), and its pledge of free estimates where applicable make it a go-to provider for heating, cooling, plumbing, and mechanical systems throughout central and western North Dakota. If you’re looking for dependable, locally-rooted, full-spectrum mechanical services, Thompson & Sons is built for your needs.