Commercial heating and cooling for New Jersey


DeSesa Engineering has the skilled manpower and expertise to design, install, and service HVAC equipment in a variety of commercial and industrial applications.


Our Service Department offers a vast variety of specialized maintenance contracts tailored to each building manager’s specific requirements including any facility that needs 24 hour emergency service.


The fusion of DeSesa’s experienced and certified technicians and the latest computer managed controls are a winning combination for your complete energy management needs.

Our Location

Our 10,000 square foot facility in Livingston, New Jersey houses our general offices, engineering, CAD system, Computer Room, Estimating and Purchasing Departments, along with ample warehouse and secured yard space for service and construction equipment.

Let’s Work Together

Our firm has complete in-house design capabilities with professional engineering registration. Over the years we have installed all types of HVAC systems in a variety of establishments. We have designed and installed systems for office buildings, warehouses, supermarkets, banks, retail stores, hospitals, computer rooms, restaurants, laboratories, schools, and theaters.