Large trees encroaching into garden

[BankFodder]

Yes you do. They amount to a trespass and you are entitled to lop the branches until they no longer overhang your garden.

I would suggest that you obtain a quote for this. Two quotes will be better – and then provide them to the Trust and inform them that you have contacted them already, that they have been uncooperative – that you're not prepared to do things according to their timescale.
The on their advice you are preparing to have the trees cut down by your own people that you will be looking to the trust for reimbursement and you are providing to quotations.

If they think they can do a cheaper job then they should respond within seven days and object to the quotations and come up with their alternative suggestions.
Tell them that the quotation will be not only for lopping the branches but also for the removal of the branches from your property and that they will be returned to the trust – once again at their expense.

 

 

You could also say that you prefer to get things done amicably so you are inviting them around for a cuppa tea to discuss the matter and you would suggest that that would be the best way forward

[BankFodder]

Purely from a stylistic point of view, you have used the word concern that these five times before I gave up counting.

I wouldn't bleat on about health and safety. It sounds a bit pompous and also invokes rules which you don't particularly know – nor do I.

Simply talk about the danger. Emphasise danger – dangerous condition.

Also, you have drawn their attention to this before and if I were you I'd start off by referring to this. I think it's very important to emphasise that you have tried to deal with them before.

 

Quote

As you know, the issue of the danger posed by the trees which are overhanging my property has been drawn to your attention a year ago and you responded that blah blah blah…

Why haven't you simply got a written report? You should have a written report and quotation. Not simply refer them to a telephone number which they can call