A fella with a van who can come round, move the tyres away from the rims and then give them a quick smoothing/repair of any scuffs followed by a spray-job will charge you about £40 a wheel to be sure.
You may want or be better off with a more comprehensive refurb.
Wheels Works UK | Alloy Wheel Refinishing. Full factory refurbishment, powder coat, wetspray and custom finishes.
seems to be a pukka outfit. They'll have your tyres off the rims altogether, check for any damage (run-out and buckling as well as just scuffs and scrapes) and then hammer..
.. I mean "apply professional repair techniques" to get the wheel perfectly round and true. Then they'll strip off the old finish completely and give your wheels brand new paint (is it these days?) in whatever colour you fancy.
They could be a bit dearer.. depending on the damage they find when they spin your wheels up.. but your wheels will be like new. I was round there having an autopsy on my dead Mille Miglia Evo's
and I saw loads of wheels in lots of finishes.. look reeeally pukka.
Dunno about price but my MM's, which were bent in every direction (up, down and from side to side/offset and so many buckles and you name it that the wheels were almost round again, if they weren't so mullah'd) we were talking about £80 a wheel.
They're in Crawley and seem to be open at 7am, so you can almost pop round on your way to work.