I have removed them 2 seasons ago and resealed them.
If anyone in the southampton area knows anyon who will supply and cut perspex let me know .
peter lowry
Geoff
Geoff Harwood
Frank Marsden
I found a place in Freemantle ,Southampton that cut ,drilled and countersunk the holes for me
They use 5 mm thick plexiglass and charge was very reasonable
they only took a few days to do
Peter Lowry
I'd be very interested in the contact details for the place you found. I've probably left it too late to do this job this winter, but it's certainly on the list for next year.
Paul
Paul Lovejoy