Bit far for me, looking for someone local (Worcs/Warks/MIdlands) I have 2 equidistant Xpel fitters but only one replied and they weren't that quick either.
you should have plenty to choose from, I'm in Northamptonshire and I've sent out enquires to 5-10 installers, most of them responded within 2 days, but some just don't check their emails. all of them were within about an hour drive from me, but I went with the closest one, as he was by far cheapest and had all 5 star reviews on google.
find out who's near by searching on Xpel's own website
https://xpel.co.uk/
then maybe filter out for only ones with stellar reviews on google.
you could also just write one email and copy paste it to all of them - they will usually call their packages differently and can be found on their website, but just state what you need. mine was quite custom - I asked for full front with the side skirts and then I fancied PPF on door sills, as I have a tiny garage and I would scratch them getting in/out. I also asked for a tiny strip on the door - just in case I hit the garage wall.
I wanted to do door handles and boot entrance, but in the end I kept the ugly Toyota ones... which I regret a little. These were actually pretty cheap.
And ceramic on the rest of the car.
In the end it was 1300 for full front, as a package, 430 for PPF on every other bit, and 600 for paint decontamination, single stage machine polish and ceramic on the rest of the car.