Because your tapestry is mounted on a wall, it should not be subject to the same abuse as your carpet and upholstered seating; therefore it should need less frequent maintenance. (Although some have elected to place a tapestry on the floor as some of the designs lend them to this. Others use them as bed covering or table covers, which is a traditional use.) Vacuuming the front and back of your tapestry once or twice every couple of months, with your vacuum upholstery attachment, should be sufficient maintenance for many years to come, or just take your soft duster and gloss over it to remove the dust, simple as that. Consider cleaning your tapestries about as often you do your fine window treatments.

A professional should clean a tapestry that is very old and valuable. Some tapestries can usually be washed at home. Use suds made from mild soap flakes and warm water. Dry carefully and use a steam iron for pressing.

Old antique tapestries often have flaws and holes. The most successful mending is to replace worn warps and to reweave the weft threads. An easier method is to attach a patch to the back and darn the hole. A serious drawback to this is that the patch is likely to shrink or pull if the tapestry is washed.

Moths and mildew and strong sunlight are tapestries' three worst enemies. A moist atmosphere can cause deterioration of fibers and is responsible for fading of colors. Strong light can have a disastrous effect on tapestries. Textiles are subject to fading over time if placed in direct sunlight. You may wish to take precautions to minimize fading. 

Enjoy your wall art, there is nothing more beautiful then a creation of color to enhance the vibrancy of a home.