Office Installation Service, Inc. With a strong work ethic and a commitment to excellence, we prioritize accountability and effective communication to ensure customer satisfaction. We have built long-lasting business relationships based on these core values, which have fueled our growth and success.

As one of the largest installation companies on the east coast, Office Installation Service, Inc. Our services include warehousing, receive/redeliver, panel/upholstery cleaning, electrostatic painting, panel refabricing, GSA contract holder, systems furniture installation, reconfigurations, relocation/move, file system, file conversion, installation project management, punchlists, scheduling, inventory, and more. Founded in the early 1990s by Jay and Neil Belcher, Office Installation Service, Inc.

Headquartered in Phoenixville, PA, our nationwide service ensures that we can serve clients across the country. Whether you need systems furniture or architectural wall installation, give us a call at 610-935-6770. Trust us to provide exceptional service and exceed your expectations