I used
https://garagedoorrescue.co.uk/ a couple of years ago, good service, local, pretty cheap (£550+VAT - £660 total)
As an aside - I inadvertently also got a quote from Everest - they knocked on the door when I was in the market for a garage door and in a moment of weakness I agreed to have them send a salesperson round, got a quote for £4,000!!!!
So - not Everest!!!!!!!!!!