Absolutely fabulous. The service from star to finish cannot be faulted. We called ETTA when our old plumber just did not turn up. ETTA came out to quote for quite a large amount of domestic heating, including zoning the existing system into 3 zones, replace boiler, convert to fully pumped system, change rads, and various other small jobs. The price was competitive. The feeling I got from start to finish was they wanted to do the best job they could. They quoted and used quality parts, and you could tell they wanted to do a quality job. The plumber that came was here for a few weeks, and he was meticulous, and VERY tidy. He had various tedious jobs, he never complained, and he would ask, 'is that OK for you'. One day the boss arrived and they had a chat on where to route some pipes, so they could make the job look perfect. Well needless to say everything is just right. The installation has the Honeywell Evohome, this is a great device, and I can now geo zone the system, so it turns itself into economy mode when I leave the home area. If you wondering who to call, then choose ETTA.