Orchid soil and re-potting

[NicolaE]

Hi, I hope someone can help.

I have this orchid (photo's attached) and I have been thinking for some time now that it looks like it's outgrowing its pot and needs to be re-potted. I've never done this before so any advice would be gratefully received!

I've seen the orchid soil sold in shops but this one doesn't appear to have the loose bark-like soil that most seem to be so I don't want to buy that if it's the wrong kind! I have others that do have the bark soil and when I water them, if you're not careful the soil all comes out! With this one, it doesn't!

I'm hoping you are able to tell what sort of soil it is by the photos!

Thanks in advance.