The Service Department of DeSesa Engineering Company, Inc. has the skilled manpower and expertise to repair and maintain HVAC equipment in a variety of commercial and industrial applications. All mechanics serve a five year apprenticeship period in addition to attending a certified heating and air conditioning instruction school. Our mechanics attend yearly specialized classes in all new equipment and stay ahead of industry changes. We at DeSesa feel that with education and years of experience, we can provide the kind of service a customer respects.