Bullet Proof Mechanical Service, Inc. of Willmar is a full service commercial HVAC contractor. We design, sell, install and service all types of heating and cooling systems. This includes packaged roof top units, boilers, burners, refrigeration and food service equipment. You may have seen our trucks around and asked yourself; "what is Bullet Proof
Jesse Gislason —
We called on s freezing windy day. They had a tech out by the end of the day. They fixed our issue and had us up and running