Replacing sofa cushion covers

[DeeLite]

I have this sofa from Habitat. I want to change the cushion covers so it matches our new colour scheme. As you can probably see from the photo, there's no proper re-upholstery involved - I just need new cushion covers.

Where do you think I should start looking? Do I need a dressmaker or an upholosterer? There are eight cushions....will it cost a small fortune? I'm keen to recycle the sofa in this way rather than get a new one as it's in perfect condition. I can't sew darn a sock by the way so please don't suggest to me I do it myself!

I was going to say can you dye the covers but the saw they were leather. I have successfully dyed covers before in the washing machine. As you say not really upholstery so a decent dressmaker/seamstress should be able to do it (or friends who can sew?). I would ask for a quote from the seamstress first and then you will have an idea of what your fabric budget will be.

I would normally say upholsterer for complicated shaped cushions , but your cushions look very square and straightforward, unpiped.
A decent curtain maker could do those.
A dressmaker could too, but curtain makers usually have machines that can handle heavier weight fabric
Quite a straight forward job as they have old covers to use as pattern

Thank you - this is very helpful.

Hereiam, the photo I picked was the first one that came up on google images but mine are actually dark brown linen. I now want blue covers so dying is definitely worth a try. Nothing lost if it doesn't work as I am definitely changing them even if paying a curtain maker etc to do it.