We find ways for you to improve your comfort and to save energy & maintenance costs. ECE Engineering Services specializes in: ·Home Energy Audits and Ratings ·Commercial Energy Audits, and Retro-commissioning ·Heating & Cooling (HVAC) Mechanical design and Green Building consulting. John “J” Bollinger, PE, CEM, LEED AP, is manager and lead engineer for the energy, mechanical and green building consulting.