About Us

Founded in 1995 by William J. Ratajack and William Ratajack Sr., Southeast Mechanical has grown into a trusted leader in mechanical contracting throughout the Hudson Valley area in New York. We specialize in providing commercial HVAC and plumbing for a wide array of clients, including correctional facilities, schools, hospitals, psychiatric centers, colleges/universities, and water treatment plants.

​

With almost three decades of expertise, our dedicated and highly trained team is committed to ensuring your projects are executed with precision and care. We maintain the highest industry standards through ongoing training and a focus on safety. Our employees are equipped with essential certifications to deliver reliable and efficient services. Our team of professionals brings extensive knowledge and skill to every project. We believe in investing in our employees by providing ongoing education and training opportunities. As a mid-sized contractor, we offer the personalized attention you deserve while maintaining the capacity to handle projects of any scale.