The project went great from start to finish. From the proposal and quote phase of the job, everything was excellent. I can't say enough good things. And, I can't think of anything negative to say. That's a rarity. Usually there is something you would have liked to see done better. I got multiple bids with very different proposed solutions. Four ton vs. 6 ton solution. During the bidding process WPGHCI had taken the extra time to put together the best solution for my particular house's thermal needs and very different 50 year old duct work design. The other solution may not have worked. WPGHCI could explain exactly why their solution was the right choice. They had gone from my actual heating/cooling bills and double checked those against an analysis of my house. They measured every room, window, and checked the types of insulations. The other supplier had not used the actual bills or adjusted for the duct work design. WPGHCI put effort into getting the plan right. And then executed to the plan. The Project manager did the proposal and followed it through to completion and beyond. And, even though they are busy they didn't cut any corners. I had to wait my turn and when my turn came I got their excellent service. The WPGHCI people know what they are doing, do it professionally and follow the agreement. This was the best contractor I have ever hired. The references I had checked said the same thing. I am very happy with the result. If you want a geothermal system, WPGHCI is an excellent choice.