What I do

Casper repairs and overhauls clarinets and he has been doing so since 1982. The sole focus on this one instrument has made Casper a true specialist, he truly knows the clarinet inside out.

Casper learned the trade at famous clarinet builders like Karl Hammerschmidt and the Leblanc factory. He studied at the Amsterdam Conservatorium – the Amsterdam Music Academy – where he took on the clarinet as his key instrument. After this, Casper  completed a further study in fine jewellery. His ear for music and his experience as both clarinet builder and fine jewelry maker, make him the clarinet craftsman he is today.

Casper brings his 35 years of experience to his customers, both amateurs as well as professionals performing at the highest stage.

Casper van der Spek in his clarinet repair workshop

Client testimonials

My Oehler clarinets mean a lot to me; the tones and melodies are part of who I am. I trust Casper with my clarinets because he is a true expert and he always comes up with the right solutions. Casper has worked his magic on my instruments and I can highly recommend him.”
— Willem Gulcher
Ever since I was a music school student I have been using Casper’s services for my clarinet repairs. In the 30 years of being a professional clarinet player Casper never let me down. He is available on short notice and even under pressure, like just prior to a concert, he will make time for me and give the instrument the attention and care that it needs.
— Ivar Berix, Calefax Reed Quintet

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