Pronto oversaw all aspects of the geothermal installlation, from removal of old gas system to subcontractor management. They were real partners. In particular, retrofitting to old construction is a long process of tuning and tweaking the HVAC system. We had 6 months of tuning the system until all the kinks were worked out. I am VERY happy with my choice of Pronto especially after hearing stories of geothermal installs where support evaporated after the main work was done. They say they are in it for the long haul and that is what I saw. In fact, twice they just didn't know the answer to a noise problem and coordinated with an external expert for solutions -- and got the answer. I really enjoy working with a company that takes leadership to fix the problems. Persistent, patient, professional, and a real pleasure to work with.