When it comes to heating and air conditioning you can put your trust in Diamond Heating & Cooling.

We are a locally owned and operated heating, ventilation, air conditioning (HVAC) contractor in Green Bay, WI that does everything from installing quality equipment to providing superior service for all your heating and cooling needs.


We care about providing the best possible service to our customers. We always go the extra mile to make sure all of our customers are satisfied with our products and services. It is our goal to build lifelong customers.

See our comprehensive list of services or contact us for a free estimate or consultation today!