Although there was a necessary last-minute change to the brand of boiler being installed, I think Craig and his assistant John did an excellent job installing my new boiler in a particularly difficult location. I found Craig very diligent, very talented mechanically, and very easy to communicate with. I would highly recommend Craig as someone capable of solving complex heating-system installation and repair issues. Although it's too early to tell, I'm hoping this particular installation will endure for a long, long time.