Diagnose and fix stiff, unresponsive, uneven or double-striking piano action · All brands · Islandwide · S$200–S$450
The piano action is the mechanical system between the key and the hammer — a complex chain of levers, springs, flanges and felts that translates finger pressure into a precisely controlled hammer strike on the strings. Piano Repair Singapore diagnoses and repairs action faults for all upright and grand pianos islandwide.
Piano action repair costs range from S$60–S$150 for individual component repairs to S$200–S$450 for full action regulation on an upright piano, and S$350–S$700 for a grand piano.
Every piano key is connected to an action mechanism consisting of multiple parts: the key itself, the wippen (which transfers key movement upward), the hammer butt and hammer (which strike the string), the damper (which rests on the string when the key is not pressed), and numerous felts, springs and flanges that control timing and force. In a grand piano, a repetition lever (escapement) allows the hammer to reset quickly after each strike, enabling fast re-striking of the same note.
When any part of this chain wears, corrodes or loses adjustment, the result is a fault — a key that doesn't return, a note that plays twice, an uneven response across the keyboard.
Symptom
Key goes down but doesn't return after pressing — stays in the down position
Fix
Replace broken or fatigued hammer butt return spring; inspect key for bushing issues; restore return function
Symptom
Action feels unusually heavy, sluggish or requires excessive force to play
Fix
Inspect centre pins for corrosion or tight fit; re-pin tight flanges; apply appropriate lubricant; regulate key weight
Symptom
A note plays twice when the key is pressed once — double-striking
Fix
Adjust let-off button position; check hammer travel; regulate escapement (grand) or let-off rail (upright)
Symptom
Clicking or squeaking sound from inside the piano when certain keys are played
Fix
Identify the worn or corroded centre pin; replace pin and re-bush the flange; eliminate friction noise
WhatsApp us your piano brand and which keys are affected — we'll diagnose the exact fault before quoting.
| Repair Type | Cost (SGD) |
|---|---|
| Centre pin replacement (per note) | S$60–S$100 |
| Spring replacement (per note) | S$30–S$60 |
| Wippen replacement (per note) | S$80–S$150 |
| Let-off regulation adjustment | S$150–S$250 |
| Full regulation — Upright piano | S$200–S$450 |
| Full regulation — Grand piano | S$350–S$700 |
Prices are estimates. Final quote given after in-person inspection of the piano action.
Piano action repair covers diagnosing and fixing faults in the mechanical system between the key and the hammer. This includes: replacing worn or corroded centre pins in action flanges, replacing broken springs, re-bushing wippens, adjusting let-off and backcheck positions, and replacing damaged action components such as hammers, wippens or damper felts. Full action regulation (setting all 15–20 regulation points per note to specification) is a separate but related service.
Component repairs cost S$60–S$150 per affected note. Full action regulation for an upright piano costs S$200–S$450. Grand piano regulation costs S$350–S$700 depending on size and brand. We provide a detailed written quote after inspecting the action — you will know exactly what needs to be done and why before any work begins.
Key signs include: keys that don't return after pressing, extremely heavy or sluggish action that feels harder than it used to, notes that play twice when pressed once, uneven key weight across the keyboard (some keys much heavier than others), clicking or squeaking sounds from inside the action when playing, or notes that sound very weak compared to surrounding notes despite a functioning string.
Grand piano action lies horizontally and uses a repetition lever (escapement mechanism) that allows the hammer to reset rapidly after each strike — enabling fast repetition of the same note. Upright action is vertical and uses a different wippen, hammer butt and return spring system. Regulation procedures differ significantly between the two types, and grand piano regulation is generally more complex and costly than upright regulation.
Full regulation sets all action parameters to specification — often done alongside action repair for best results.
Learn more →Worn hammers affect tone quality. Often addressed at the same visit as action repair.
Learn more →Sticky keys are sometimes caused by action binding rather than key bushing issues. We diagnose the exact cause.
Learn more →WhatsApp us your piano brand and describe the key behaviour — we'll diagnose the action fault and quote before any work begins.