The Otsego County Chamber Contractors - Plumbing & Heating go Results Found: 2 Button group with nested dropdown Gilbert Plumbing & Heating Gilbert Plumbing & Heating Plumbing and heating installation and repair Plumbing and heating installation and repair P.O. Box 96 Gilbertsville NY 13776 (607) 783-2289 Visit Website A. Treffeisen & Sons, LLC A. Treffeisen & Sons, LLC 204 Roundhouse Road Oneonta NY 13820 (607) 432-1655 Visit Website Share this content with your networks: