Hi and welcome to the site. i don't know of any tent repair shops, but someone will probably be along with the answer in the morning, so bumping it up to the top again for you. What needs to be repaired anyway? If its a small hole in the flysheet you can get tent repair patches and do it yourself from the tent awning clinic, you'll find it on google no problem. Good Luck.
I'm sure I've seen replacement eyelet kits in various camping shops. It's probably worth having a look before you consider taking it somewhere for repair.
i have also seen the replacement kits much cheaper than having it repaired by a shop. look in your local camp shops and ask they may not stock them but might be able to order one for you.
have used those eyelet kits they come in various sizes and you put them between two formers and bray them into place with a hammer,work quite well but i found it necessary to make a hole though the cloth for the piercing side first as the end result was tidier
yeomans
case of type too quicky and getting letters backwards
or is it fat fingars small keys
oh for added strenth you can sew the patch to, then you have too seal where you have sewn it.
they sell the complete repair kit for a fiver or less and the eyelets for 3 quid for 10 or 20 depending on size of eyelets.