Neighbour, with whom I share freehold of flat, is, to put it mildly, a bit on the controlling side. I'm trying to be as objective as possible here as she may have a point but I think some of this is useful context. She sends me a lot of requests/demands about how I should manage my life and my property. Sends me several messages a week complaining about various issues to do with my bins - some valid some less so (I did have some leftover decorating rubbish in the garden which I can see was an eyesore for a couple of weeks and she was very assiduous in pestering me to deal with that. It's now been dealt with). But she notices every time a stray binbag finds its way into her wheelie bin and I am always blamed for it and asked to drop everything to deal with it even if its nothing to do with me. She has asked me not to use my hairdryer after 10pm. She's always giving me unsolicited advice about which locks to install on my windows. She's asked me to make less noise when I close my front door. That kind of thing.
So the latest thing is that she is bothered by the noise that is generated when my hot tap is turned on and off. I have the same issue when she turns hers on and off. It's the kind of fairly routine ambient boiler nose which you hear in pipes in people's houses. Frankly I couldn't care less about it.
Last week she sent me a text saying the noise was causing her stress and would I get a plumber in to look at it. I called a plumber out today. Plumber looked at it, went and had a look in her loft where the shared water pipes for both flats are, turned taps on and off and fiddled with things and eventually concluded that the problem was with her boiler and it was up to her to sort it out.
She promptly sent me a text saying my plumber didn't know what he was talking about and that she had separately taken advice and done a lot of research and concluded that some appliance needs to be added to the pipes in the loft to stop them making the noise and would I share the cost of getting this appliance fitted. Having spent over £100 calling out a plumber who definitely told her it was her problem and not mine, I'm not massively inclined to do this. I've told her I'll get an independent third opinion on it when I have a chance (I have a lot going on in my professional and private life and don't really have time for this) and she's now come back and said she needs it dealt with by a certain date and she'll book the plumber etc.
My feeling is that if she's sufficiently bothered by a bit of noise in the pipes it should be her responsibility to get it fixed. If we discover there's a structural problem which could lead to damage I'm happy to deal with it. But at the moment I feel I'm being railroaded into paying for her to deal with one of her numerous neuroses and I need to push back. AIBU?