Heating & Air Conditioning Repair service. Mechanical build out and Maintenance installation & Repair. Having more than 25 years of industry experience, Excel Mechanical NY, in New York City, offers Mechanical Services for HVAC Systems to both residential and commercial clients. Our HVAC Service & Repair Group and our Engineering Design and Build Group are professionally staffed with experienced Technicians and Engineers. We service, repair and install Water Source Heat Pumps, PTAC and all Base Building MEP Systems. We also specialize in all-inclusive property maintenance services. With us, you can speak to the owners directly for all your service needs.