Advice on refitting roof lining please

Mines come away around the drivers side rear window and c pillar and no matter how many times I try to fit it it looks terrible and full of creases and I'm struggling to get a nice fit behind the window rubbers. Any advise??

Once the roof lining is secured. trimmers either use an electric kettle placed in the car with windows closed and the steam takes up the creases.
If you have been watching american Hotrod on chanel 38 they use a steam machine to finish off all thier trimming so it must be Ok to use a wallpaper steamer or one of those steam cleaners,

Get a professional to sort it. Its not usually as expensive as you think it is and the results will be better.

I've watched MJ do a couple of my mates cars now and he just fits it right to start, it can be done! I did my own and was a pain in the ass to get right but can be done with lots of time and patience.

It's only around the rear side window but when I do it it looks terrible. Might have a word with my local retrimmer

Use a heat gun but don't get to close and use evo stick or somthing simlar the heat should help the vynel give

Would it be better to take the side window out?

yep and try and lip it round so the rubber holds it in