They have done two systems for us with furnace and AC including adding some vents and adding return pipes, etc. Both scenarios had added challenges but they did great work. I also called Udiel with an emergency at my mom's house. It was very cold and the heat was not working after the roof was replaced. The roofers had messed with the vent pipe. He showed up within a couple of hours so that my elderly mother could have heat.
Udiel and his team are the best! Good guys, meticulous, fast, honest, respectful and reasonably priced. They show up on time and do the job quickly and efficiently and leave the premises clean.