Many NHS regions have outsourced to Specsavers....free to you but paid for by the NHS. I have been using the service for some years now and am very happy. I have "Stretta" aids controlled by a "Sigma" app.

Fully Private aids are quite expensive. Are they better? I know not!

PS. Anyway my local, in-house, hearing aid specialist often accuses me of not hearing HER and I have to confess that maybe SHE is correct