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                                         "Energy Star" Heating & Cooling Systems Qualify for Utility Rebates & Tax Credits


As Mechanical Contractors, We Service & Install Geothermal, HVAC, Refrigeration, & Foodservice Equipment for Commercial and Residential Applications.

We provide Maintenance Agreements & Service Contracts.

We are Trade Experts on Equipment that Produces or Removes heat.


Our Goal #1 is customer statisfaction!    We Provide Timely Service & Quality Workmanship!

All Equipment Repairs & Installations include a Product Warranty & Workmanship Gaurantee. 

We stand behind the products that we sell, and the warranty that is included with the purchase.


We have 24-Hour Emergency Service! Give us a Call Today! (605) 886-6162


Each Service Truck is Fully Stocked & Tooled and includes a Certified Technician.


Our Service Territory is indicated in yellow on the map:

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24 hour

Emergency Service

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 Thompson Mechanical Inc. - Watertown, SD   

Mechanical Contractors serving Northeastern South Dakota since 1987.