A bit of a long shot

Can't suggest anyone sorry. But I would say if you do find one check out reviews! They are a dying breed 🥲

I used one in Essex. For the clock inherited from my parents.  Took forever, not that time 🤣 scale was an issue. Moved and it wasn't keeping time. Our 'new' village had its own horologist 😀. As we were new to the village he took pity on us. Lovely workshop with plenty of ongoing repairs 😀. Turns out not one item had been oiled or serviced 😡. Another 3 figure charge, but less than 1st BUT it works beautifully now.

He's retired since we moved here 2 years ago. His sons weren't interested in taking it on. He carried on from his father. 

Try a search locally, maybe on social media? Perhaps you'll be lucky enough to find a 'hobby' clock mender 🤞

There is one in Newcastle (on Tyne) that we used to repair a very old pendulum wall clock about three years ago. They did a good job as it run flawlessly on time now, I forget their name but it's probably  along way for you. There was a three month waiting list though!

This might be of interest John

http://www.yorkshireclockrepairer.co.uk/

Elsecar Heritage Centre is not far from M1, and is a great day out in itself, if you want to make a day of it. All sorts to see, some good little businesses, and eateries. I would check opening times though before coming up. If traffic is kind, not a bad run up M1 from Derby area.

We found a clock repairer on the BHI website: https://bhi.co.uk/wp-content/uploads/2024/03/Accredited-Register-CLOCKS-080324.pdf

We have 2 old Dutch clocks, one is a pendulum clock, which we wanted someone to have a look at.

Only 2 in Lancashire and the one nearest to us was a retired 80 year old, who still does the odd repair/service,  Having had a quick look, there are 3 in Derbyshire,, so possibly worth contacting those?

As an aside, our repairer wouldn't entertain us taking the clock to him; he came to our house, had a look at the clock, then decided he would take it back with him and service/repair it.  He then brought it back, as he wanted to put it back on the wall and level it himself, then check it again.

Good luck with it.