Quad ESL service, Electrostatic Solutions or Quads Unlimited ?

^^^^

If DIY is a choice, ER audio in Australia is an option.

Many great reviews and in talking with Rob the proprietor he was very helpful in helping me to troubleshoot, and get my B&W Electrostatic speakers up and running.

I did not need so far (fingers crossed) to order the repair kit - but if I do in the future I would not hesitate.  

ER Audio Link to Repair Kits that are available 

http://www.eraudio.com.au/ESL_Repair_Kits/esl_repair_kits.html

Cheers