Contact Commercial Services At UNI-TECH , we are commercial HVAC service experts. If you are a local business that is already established, or you re a contractor who is starting... construction on a new commercial building, we can work with you to ensure that your HVAC service is top notch. We can tackle heating and cooling services in just about any type... of building, like: Retail shops, plazas, and stores Government buildings Schools and churches Warehouses If you re concerned about your operating costs, don t be. We can provide you...