B&W cdm1 se TWEETER repair/replacement

Hi , Can anyone recommend someone who repairs ferrofluid tweeters ?
Or even better if someone has a replacement I could buy .

Thanks

You can look up B&W speakers service manuals here:
http://bwgroupsupport.com/manuals/service

You can also buy replacement domes here:
http://www.ebay.co.uk/itm/Dome-Repla...-/301962152154

TBH, not sure if 26mm hacks it, but you can measure.

You might also look up replacement ferrofluid on eBay. Not expensive in tweeter grade. It's a simpish formulation of iron oxide and oil.