This will depend on the issue. However, many plumbers are also Gas Safe Registered, meaning they can undertake work on all aspects of boilers and central heating systems. It's best to look out for plumbers that display the badge of your boiler on their literature.
Roy Bridge
Roybridge is a little town, that lies at the convergence of the rivers River Roy and also River Spean, located 3 miles east of Spean Bridge, in Kilmonivaig Parish, Inverness-shire, Scottish Highlands and remains in the Highland management area. Roybridge is on the A86 between Spean Bridge and Newtonmore as well as on the (previous West Highland Railway) line offered by trains passing in between Crianlarich and Fort William.