Welcome to Harry Cooper Supply ‐ Whether you’re a contractor, designer, builder or DIY enthusiast, we provide our customers with a complete line of plumbing, electrical, waterworks and HVAC supplies from leading manufacturers to enhance your space or project. We pride ourselves on the quality and variety of supplies we offer to our customers. We also value the importance of staying ahead of the curve and promoting innovative products to create new opportunities for our loyal customers. We are committed to changing with the times, while staying true to the traditions that have earned us the reputation as a definitive resource for excellence in construction.