Piano storage in a climate-controlled space costs $50-$75 per month. The difference in humidity and a high temperature often causes acoustic pianos to go out of tune. It is a safe option to place your piano in a storage space until your new house is ready. This helps in avoiding tuning costs, and protecting it from unwanted scratches and dents.  Piano storage companies usually offer a 24/7 security service so your instrument is safe with them for as long as you want it to, at a fixed monthly rate. In addition to storage, the moving cost for pickup and delivery to the storage space is applied.  (*HomeAdvisor)