To answer to the request by Mr. Ben Roth, the closest player piano
repair shop to Southampton that I know would be The Great Canadian
Nickelodeon Co. Ltd. of Mount Forest, Ontario.

Although the company closed on March 1st, 2022, I think the owner
still offers services as he stated on the company website:
http://www.nickelodeonco.com/ 

Another one, but quite far from Southampton, might be Vintage Piano
Restorations in Eganville, Ontario. Website:
http://www.vintagepianorestorations.com/ 

In the 1980s and '90s I travelled a lot to Owen Sound and Kinkardine
which are near Southampton, where two of my pipe organ apprentices
of the time came from.

If I was younger I would offer my services while visiting for a pipe
organ maintenance but I no longer maintain pipe organs in Ontario.

Gilles Chouinard
Laval, Quebec, Canada