Had a call from SpanSet (the safety training provider & maker of harnesses and all fall restraints) at their head office. The skylights were dirty and not letting enough light through, could we clean them?
Another firm said they couldn’t be cleaned and needed replacing, at a cost of £25000.00 and that cleaning them would cause all sorts of problems and pull the face off the fibreglass panels.
Not a straightforward job as we couldn’t actually walk on the roof but we cleaned them and the client is very happy!