I have a Baxi back boiler with asbestos in the burner gasket only. the gasket is compressed between two metals so is not exposed, but having asbestos in it means that I would need a specialist who has the relevant qualifications to deal with asbestos, to remove the gasket and replace it, then give me a clean air certificate, can you tell me which category I would post this job under as I can't see an appropriate one under specialist