I can highly recommend Sam Willson, he’s a really good, professional plumber, I found him on “ mybuilder.com” I asked for several quote as you recommend, his was detailed and fairly priced, being a elderly lady, just moved into the area I felt confident in Sam, his work is neat and he and his team cleaned up after removing hot and cold water tanks, removing old boiler and fitting a new Combi boiler in another room, changing all the piping for all the rads from small bore ( which I didn’t want ) to normal Pipe ,I’m so pleased that I asked Sam to return, when all walls are plastered and refit new rads and alter plumbing in the kitchen, and move my stopcock, I can’t thank him enough