I need to repair my driver seat (renault clio 172, 02plate) ?

Hello I have a clio 172 02plate and was involved in an accident where another car hit the passengers side and the driver seat airbag popped out! i have since got the scratches and dents fixed but now need to get the airbag put back in and re-stitched.. does anyone no of a place i could take it to? or any company that specialises in upholstry? live in the west midlands area... many thanks..