With over 50 years of window cleaning experience from residential homes, commercial and industrial buildings to high rises, you can trust Diamond with your health and safety. Serving Belleville, Trenton, Kingston and the surrounding areas since 1969. As a company that works high off the ground, job site safety is critical. Our staff are qualified and certified in fall arrest systems, suspended access equipment and elevated platforms. Our clients range from residential home owners, home builders, commercial and industrial buildings. In addition, we provide a wide range of services for your property, including construction cleaning, tint removal, and construction cleaning.