How to Care for Your Acoustic Piano — Season by Season

A quality acoustic piano can last a century. Here's everything you need to know to protect your investment and keep it sounding its best — year round.

An acoustic piano is not just an instrument. It's a living object — built from wood, felt, metal, and string — that breathes with the environment around it. It expands and contracts with humidity. It responds to temperature. It needs care, attention, and the occasional professional touch to stay at its best.

The good news: caring for an acoustic piano is not complicated. It requires consistency, not expertise. Here's what you need to know, broken down by the season and the situation.

The #1 Enemy of Your Piano: Humidity

If there's one thing to understand about acoustic piano care, it's this: wood and humidity are in a constant relationship, and your job is to keep that relationship stable. When humidity rises, wooden parts swell — keys stick, action becomes sluggish, and the soundboard swells upward, raising pitch. When humidity drops, wood shrinks — soundboards crack, glue joints open, and the piano goes flat.

The target is a consistent relative humidity of 42–45% in the room where your piano lives. A piano humidity control system installed inside the instrument is the most reliable way to maintain this — and is strongly recommended for any quality acoustic piano.

Caring for Your Piano Through Every Season

Tuning: How Often, and Why It Matters

The Standard Recommendation: Twice a Year

Most piano technicians recommend tuning at least twice per year — once in spring after winter's dry air, and once in fall after summer humidity. Pianos that are played heavily, used professionally, or located in rooms with significant seasonal swings may need more frequent tuning. A new piano being "broken in" during its first year should be tuned 3–4 times. The most important thing: don't let tuning lapse for years. A piano that has drifted significantly may need a pitch raise before it can be properly tuned — a more involved and costly service.

Do's and Don'ts at a Glance

Your Annual Piano Care Checklist

Caring for a piano is one of the great joys of owning one. It's a relationship with a remarkable object — one that rewards attention with decades of beautiful music. Treat it well, and it will outlast you.