Had a badly corroded garden gate with 20 years worth of coats of paint. Shuddered to think of doing it myself and a new one was megabucks.
A mate told me about SK Coatings, who stripped and painted it to almost as good as new for a very keen price.
I don't know the SK guy and don't post recommendations as a rule but I was fair impressed.
Wick Industrial Estate 07530197702.