What type of cctv survey do you require? Have an emergency? we have a rapid response team that can get to you quickly. Q how much will a replacement boiler cost? Calls may be recorded and monitored for quality and training purposes. Are you looking for cost efficient heating? A toilet that is backing up, overflowing drains or foul smells in the area around drains are all indications of a blocked or damaged drain or gully. Where.