Boston Piano Service, 412 Moody St, Waltham, MA 02453, US

Potter-Rathbun Organ Co. restores, tunes and maintains pipe organs throughout the Northeast. Almost all of its customers are churches of various denominations (and a Masonic temple or two). On rare occasions, Potter-Rathbun offers its services to individuals who just happen to have a pipe organ at home. Some of the restoration work is done at the Cranston shop, which is chock-full of parts including hard-to-find items from organ manufacturers that closed their businesses years ago. However, much of the work is done on-site in churches located as far away as Maine and New Jersey.