Are You Looking for HVAC Contractors in Plattsburgh, NY?

Hyde-Stone Mechanical Contractors delivers comprehensive HVAC, plumbing, and mechanical contracting services with a focus on design/build projects, preventative maintenance, and 24/7 emergency response. Established in 1893, we serve commercial, industrial, and institutional clients across Northern New York, prioritizing safety, innovation, and sustainable practices. Our in-house pre-fabrication facilities and dedicated team ensure efficient, high-quality solutions tailored to client needs.

L.H. LaPlante Co., Inc. delivers commercial HVAC systems, plumbing, and mechanical contracting services to institutional and industrial clients in Plattsburgh, NY. With 35+ years of experience since 1986, we specialize in system installations, process piping, and maintenance for government agencies and educational facilities. Our certified technicians combine technical expertise with a commitment to safety and efficiency.