We found a gold nugget finding John, he gave us a quote fast was able to tell us which boiler would suit our needs best & without ripping us off. John was reliable, honest & trustworthy, as we left him in the house alone at times and left him a key to lock up. He is extremely conscientious not taking tea breaks every five minutes, as he said he wanted to crack on. He is such a knowledgeable person, I would recommend John to anybody and everybody, such a lovely guy