Prompt, efficient and fair’ is how malcolm blake was recommended to us for all general plumbing, hr call-out and oap discount. I called a few plumbers on friday night jim was the only one that answered .he said he would call this morning and the did ,he came right over fixed a sump pump his rates.are fair great service!!! That will cost £ on average to replace. Do you want an easy, hassle free experience? then choose heat-plex to save more and worry less!.