Proper care and maintenance will ensure you many years of excellent preformance you have the right to expect from your piano. Keeping your piano well maintained will enhance your listening and playing pleasure while protecting your investment.
Question #1: How do I take care of the finish and the case?
Some pianos are finished with clear lacquer and other pianos are finished with polyester. To keep the piano and all fine furnature clean, we recomend cleaning with a very soft cloth, such as a diaper. Apply a slight amount of water to the cloth to pick up dust. Do not use normal waxes and polishes as long term use of such materials will harm the finish. There are special products available in the piano industry that are proven effective. Do not place vases, flowers, or water filled containers on the piano. The piano strings should never be touched. Fingertips leave oils behind, which causes corrosion.
Question #2: How do I take care of the keys?
Clean the keys with only a very soft cloth (another diaper will serve you well), water-dampened. If the keys are very dirty, use a very gentle soap on the cloth. However, if you use soap, be sure to go over the keys with another soft damp cloth to rinse the soap. Never use abrasives, achohol, cleaning fluids or other solvents on the keys, and never use water other that to dampen the cloth.
Question #3: Where do I place the piano in my home?
The correct placement of your piano is extremely important for the longevity of the instrument. The piano must not be any where near a heating outlet. Nor should it be near a window, exposing it to direct sunlight and drafts. In a modern, well insulated home an outside wall can be adequate. Extremes of humidity are extremely dangerous for your piano. Dryness in the piano’s environment will cause the woods to dry out and subsequently crack. High humidity will cause the piano to detune and become sluggish. The ideal humidity level for the instrument is 42% as it is for all fine furniture.
Question #4: Does my piano require any maintenance?
As with any finely built object, regular and proper servicing of your piano is of vital importance if you are to enjoy it for many years to come. A properly serviced instrument will preform precisely and will have a longer useable life. During the first few years you own a new piano, when the new wires are stretching, the piano will need to be tuned several times each year. After this time two tunings per year are usually adequate (except in situations of extremely heavy use). Recognizing that the piano’s preformance is dictated by the quality of this servicing, Cooper Piano will offer you the services of a qualified and authorized piano tuner. 
A good technician will care for the minor action and voicing adjustments necessary at the same time he or she is tuning your piano. The piano will require a complete re-regulation of the keyboard every several years under normal home use. This service will ensure that your instrument will perform and respond correctly. Re-regulation must be done only by a quailfied piano technician. As any piano is used the hammers will continuously harden, little by little. Consequently, the piano will require periodic voicing (adjustment of the hammer felts) to maintain the sound or voice for which you selected your piano. Again, only a qualified piano technician can perform this service correctly. Poor quality voicing work can greatly reduce the life of your piano hammers and could result in replacing them long before it might otherwise be necessary.
Remember:
Correct care and maintenance, such as piano tuning, should be routinely performed, by you and your piano dealer, in order to guarantee a happy experience for both you and your piano!
More information may be obtained from the Piano Technicians Guild.