Experts in Green Building, Energy Efficiency, and Green Product Supplies Grun is the Washington, DC Metro region's premier green product and supply center. Our store, warehouse, and company, are designed to encourage all of our customers, at whatever level of "green," to take the next steps to an even greener lifestyle. We offer green products in three areas: Green Building, Green Design, and Green Living. Grun has distinguished itself in three major ways: superior customer service, cutting-edge, green, and energy-efficient products, and our strategy of educating consumers into action. Our staff are experts on green and energy-efficient products. We share our knowledge with our customers and make sure all of their questions are answered. Our goal is to always go the extra mile to make sure our customers are satisfied with the store's products and service.