I used Eurotech for underfloor heating and plumbing in 1997. I found them excellent to deal with. I had contracted out the house but the contracter wasn't happy to do the underfloor heating so Eurotech were the only trade that we had employed seperately. They worked very well with the contractor and there were no delays or difficulties. I know they have have been installing geothermal for many years now so they should have the experience which many others might be lacking.