For quality work at an affordable price on all your heating and cooling systems, look no further than Williston Heating & Cooling. Our full service HVAC contractor is fully licensed (Contractor Class C License #: 51138) and insured to provide our HVAC services to you. We bring over thirty years of experience to each project our HVAC contractor undertakes. We work on all major brands of equipment and we use only top-of-the-line products. Our services are available for both residential and commercial properties. From repairs to replacement, our HVAC contractor can do it all. Call Williston Heating & Cooling in Williston, ND at 701-339-1529 to schedule repairs and to learn more about all our available HVAC contractor services.

Since 1975, Mon-Dak Heating & Plumbing Inc. has been Williston, ND and the surrounding area's premier destination for plumbing supplies and service as well as heating supplies, installation and service. We specialize in the installation and service of all heating equipment, from electric furnaces, gas furnaces, and heat pumps to geothermal systems. We also install and service boiler heating systems. We also offer a full plumbing shop as well as installation and service for both residential and commercial clients. Offering exceptional service, the highest quality products and work, and decades of experience, it's no wonder Mon-Dak Heating & Plumbing Inc. is Williston, ND and the surrounding area's trusted heating and plumbing experts. Don't forget to visit us online for exclusive money-saving coupons!