Bathroom plastics repairs

Hi, I own a 2003 Nuevo which I strive to maintain to a good standard. We have had a long-standing problem of the bathroom plastic panels cracking, and could not find an answer. Welding is out of the question as it distorts the panels. Fibreglass will not stick to the plastic.We eventually went to calibre models in Builth Wells, who work with this material. It can be solvent bonded to its self very successfully. They did an excellent job including re-spraying everything to make it look brand-new. The job is well over a year old, no cracks have reappeared, and it looks as good as the day it was done 
calibremodels.co.uk.  (01874) 712231. Matt or Miles
These are two good guys who know what they’re doing. If you want further information, please contact me.
ralphandshirley@msn.com

I'm guessing they could also repair the blind/window surrounds that are also prone to cracking.