Nuevo roof cracks

Hi all I discovered some hairline cracks above the drivers door area, where the water drains out, on my Nuevo ES 2005.  I treated them with Creeping crack cure last year, but have now found a small damp patch on inner wall, behind drivers seat, low down at floor level.2
I live Manchester area, and wondered if anyone knows a good repairer in my area.  Struggling to find one.
Don't want to use Glossop Caravans.
Also is this bodywork gelcoat?
Been reading around on the forum and unsure what shell is made from?
Thanks Heidi

Not sure which area of Mcr, but we've used 4All Seasons Caravan Repairs in Radcliffe for bodywork repair on a previous van when we caught the side. The repair was very good and they were good to deal with. 0161 724 5868. They are NCC approved and do a fair amount of damp work.

From what I hear you're right to avoid Glossop Caravans.

Good luck with it.

That's great Harry thank you.
Have slapped some waterproofing stuff on it for now.
No time to sort at the moment, but will become my priority soon. 
Am north east of Mancs, but Radcliffe no problem. 
Can get to Glossop in 10 mins, but won't!  Past experience not brilliant.
Regards 
Bren.