I would highly recommend WHG.
I moved from Worcester to Inverness and as they left in the morning, the movers said: "See you tomorrow at 10am." Given the distance, I was a bit sceptical, but they arrived on the dot of 10am the following morning and installed my things with minimum fuss and good professionalism.
I was initially a bit wary as they were far better value than other quotes I had, but I wouldn't hesitate to recommend – or use – them again as they were excellent.