How do you support the brickwork above where you intend to install the bracket, at the moment it is sat on a large timber across two joists in the loft, am i going to do more harm than good, trying to install such a bracket. It has been stable for 20 years is that the way chimney breasts were supported years ago ?
Im just trying to get a feel for what i need to do should the buyers surveyor point it out as an issue.