Vintage Synthesizer Repair

Synths When is a vintage synthesizer repair shop located in downtown Toronto, Canada.

About the shop

Our shop brings over a decade of experience with vintage synthesizers to Toronto's music scene.

We handle everything from repairing and rebuilding to tuning and regular maintenance.

We are happy to help everyone from musicians to studio owners with any original or vintage gear.

We accept repairs by appointment only.

Please call or email before coming to the shop.

74 Wade Ave, Toronto, ON

Request a repair

Due to COVID-19, we are experiencing higher than normal volume of repairs.

We've implemented a new intake system this year to help us streamline this volume. Please fill in the form via the button below and we will get back to you in 24-72 hours.

We really appreciate your patience and look forward to seeing you in the shop!

Our Services

Regular cleaning and maintenance

Custom installs and upgrades (midi kits)

Complex repairs

Complete restorations

Synthesizers we fix

Including but not limited to...

  • Moog - all Moogs from early to new
  • Roland (early SH series to all Juno/Jupiter’s)
  • Electro-mechanical Pianos (Rhodes, Wurlitzer)
  • Solid State Organs (Farfisa/Acetone)
  • Korg (from the monster PS-3300 to the humble Polysix)
  • Tape Delays (Echoplex, Roland, Korg)
  • AKS (Synthi/VCS3)
  • Sequential Circuits
  • Serge Modular
  • Electro-Comp
  • Polyfusion
  • Eventide
  • Teenage Engineering
  • Sequentix (Cirklon)
  • ARP

Looking for something different?

We can help. We have a network of technical specialists in guitar/tube amps, monitors, mixers, and more - get in touch and we'll set you up with the right person.

Jay Lemak headshot

Jay Lemak - Owner and Lead Technician

Jay started Synths When over 7 years ago to help friends and musicians keep their gear running. He spent his youth climbing antenna towers, programming on his Commodore 64, diving into computer science classes, and getting his HAM radio license - all leading to his fascination with audio and electronics.

Having played keys all his life in over a dozen bands, Jay married his love of music and electronics by turning his attention to engineering and getting two diplomas: Mechanical Engineering Technology and Electronics Engineering Technology with Honours. Since starting Synths When, he's repaired instruments for many international and local artists.

Want to take a quick tour?

We've moved since our friends at Synth4Ever came by to interview Jay and take a tour of the shop, but check out their video to get a feel for the type of work we do.


5 stars

Jay brought my Concertmate MG-1 back from the brink. He's a professional, courteous and easy to reach and the service is top notch. Thank you Jay!

- Owen Keenan

5 stars

This review is long overdue. My apologies Jay, for not posting this sooner... Synths When is a Godsend to the vintage synth world. A few of my synths have been serviced there, and when the others need attention they will be going there too. I have always walked out of the shop with a happy synth and a great experience had.
You get honest answers and top notch service/advice.

- Jim C.

5 stars

Jay does great work, highly recommended to anyone in Toronto or even in Canada who's looking for synthesizer repair. He did a great job on my Moog.

- Derek Androschuk

5 stars

They did a fantastic job on my Roland D-50. Fast service, fair price and awesome guys to boot. Highly recommend this place!

- Kole McRae

There are dozens of more testimonials on Facebook and Google - we are proud of how much our customers love our work. Check them out to hear it straight from the source.