Great experience with Nexgen! Dennis was professional, helpful and very responsive in helping with my decision to replace my furnace, air conditioner and thermostats. The company was very prompt and responsive. Carlos, Arturo and Marvin showed up on time and were very friendly, courteous and professional throughout the installation process. They helped me set-up my Nest thermostat and thoroughly reviewed my new system with me. I highly recommend Nexgen, Dennis, Carlos, Arturo and Marvin!