Thermal paste service in the U.K. by mail?

[FamicomRetroGamer]

Hi.

I have a PS4 Pro which I want it to have a thermal paste service done to it and while at it, cleaned all around.

Do you guys know of a company or someone trustworthy that does it? I asked an eBay seller who was selling a PS3 with thermal paste and he told me £27, but I'm skeptical about it.

P.S. It's nice this community is alive again.