I have just had my open gas fire replaced with a new, glass fronted one. There was a lot of smoke the first time I used it and my gas engineer says that the plasterboard around the fire needs to be replaced with fireproof material. What tradesman would do this?
Having recently done this to my fireplace for the second time (wife wanted larger open gas fire) i would suggest a general builder with experience in roofing and general plumbing only because im a roofer with that background and had no problems and get a gas safe engineer (the one fitting the fire) to check the air flow a gas spillage