The DeLattre Team would like to personally welcome you to the official website of DeLattre Corp.. DeLattre Corp. is a Tustin Group Company partner, specializing in commercial heating, ventilation, and air conditioning, serving Pennsylvania, West Virginia and Eastern Ohio. We have been in business for more than 60 years, and we’re proud to be here to serve you today. DeLattre Corp. specializes in commercial HVAC repair, sales, service, design, installation and replacement of heating, ventilation, air conditioning, dust collection, ductwork, exhaust and controls. We also fabricate our own custom sheet metal ductwork. When you need an HVAC specialist for your business, rely on DeLattre Corp..