KlavieratelierRaf Mercelis
Precision and technique in service of music
Piano technician service for pianos and grands: tuning, concert tuning, revisions, restoration, voicing, intonation, and piano action regulation.
Certified
Steinway Concert Technician
What we offer
Services
Standard Tuning
Piano tuning to standard pitch or concert tuning. Recommended at least once a year, ideally twice a year.
Plus Tuning
Tuning, touch and tone inspection, keyboard and action regulation, intonation, and voicing for an even sound image.
High-End Tuning
Tuning and full optimization to bring your instrument back to top level. A full working day.
Revisions
Thorough revision of the piano action and worn parts such as hammerheads, felts, leathers, and centers. After a major revision, your piano is ready again for years of playing pleasure.
Restorations
Specialized top-level restorations with restringing, soundboard repair, case restoration, and brand-specific standards.
Remastered Pianos
Sale of Remastered pianos: high-quality instruments, carefully selected and rebuilt in our own atelier, with guidance for piano purchase and a 5–10 year warranty. Free delivery included.
Appraisals & Valuation
Professional technical expertise covering every part of your instrument, with accurate valuation for inheritance, sale, and insurance.
Climate Control
Advice and guidance to keep your instrument in optimal condition in relation to room, humidity, and use, including Piano Life Saver System solutions.
Studios, Institutions & Professionals
Tailor-made service for recording studios, professionals, and institutions: recording support, high-end optimization of tone and touch, tonal adjustment to the room, periodic service, and maintenance plans.
Experience
Craftsmanship
"The starting point is always 'level up' — making the piano better, in line with the client's wishes and the level of the instrument."
Yamaha Music Europe
4 years of training and service at Yamaha Music Europe. Training at the Yamaha Piano Technical Academy in Hamamatsu, Japan.
Watch videoPiano's Maene
15 years as Expert Piano Technician at Piano's Maene (2010-2025). Restorations at Atelier Chris Maene and maintenance plans for conservatories in Maastricht, Codarts Rotterdam, and AP Antwerp.
Steinway Concert Technician
Trained at the C.F. Theodore Steinway School for Concert Technicians at Steinway Hamburg. From 2016 to 2025, lead technician for Piano's Maene for the Steinway Model D concert grand of Antwerp Symphony Orchestra at Elisabeth Hall. From 2014 to 2025, annual maintenance of the Steinway collection at Codarts Rotterdam.
Concert Venues in Flanders
Tuned for Gregory Sokolov, Vikingur Olafsson, Boris Giltburg, and many other master pianists. Venues: Elisabeth Hall, deSingel, AMUZ, Stadsschouwburg Antwerp, Concertgebouw Brugge, Bozar, Flagey, Jazz Middelheim, De Bijloke, and Festival of Flanders.
Klavieratelier Raf Mercelis
Piano service for private clients and professionals, focused on concert service, revisions, and restorations. Currently in the atelier: Steinway Model O and a Bösendorfer upright piano.
Get in touch
Book an Appointment
Your piano deserves the best care. Contact a certified piano technician.