These guys fixed our boiler today and I’d highly recommend them. They came the same day and were polite and thorough, inviting us to have a look at everything they did and explaining the problems to us. They were tidy and very clean they even cleared up all signs of brick dust outside after having to chisel the outer wall of our house to move the boiler flue. They filled the resulting hole with sand cement and it’s a very tidy job. Very impressed! Would definitely use again.