Christian did an excellent job repairing our condensing gas boiler. We've had so many problems with our Triangle Tube, so it was a relief to finally find someone who can service it properly. He also assessed the whole system, and provided some suggestions on how to fix some of the subpar work done by other companies in the past. He is very knowledgeable and reliable, and very good/patient at explaining how everything works. He is now our go-to guy for our boiler/radiant floor system.