AIR OR WATER. JUST (GREAT) MECHANICAL! Located just outside of Milwaukee, Just Mechanical provides mechanical, HVAC, plumbing, energy management and engineering services to commercial facilities in southeastern Wisconsin and northern Illinois. We bring nearly 100 years of industry experience to each client project, and have the engineering capabilities to handle your remodeling, new construction and design-build needs. The mission of Just Mechanical is to provide our customers with HVAC, plumbing, engineering and energy services that exceed their expectations. We will retain existing customers and attract new customers by providing timely service with great technical expertise. Just Mechanical is committed to providing excellent service in all of these areas.