A re-cone is not simply a repair, It's a complete  replacement of all the moving parts . Using many components including cone, high temperature voice coil, inner suspension, outer suspension, pig tails (tinsel Braid), Gaskets and dust cover.

The unit is stripped of all its components,  thoroughly cleaned and accurately re-assembled and aligned.

The re-cone kits are assembled using  adhesives designed to withstand the temperature and stress in modern loudspeakers ensuring long term integrity and reliability.

With some older units it is possible to increase the power handling 
due to the use of high temperature voice coil materials.

Whenever possible we will try to give you our appraisal as to why the speaker failed in the first place to prevent any re-occurrence.
The most common cause of loudspeaker failure is amplifier over load producing square waves which burn the coil.