Double Diamond Air Duct Cleaning has been successfully operating for 18 years and serves the Durham region, GTA and surrounding areas. We handle all aspects of residential, commercial and industrial HVAC duct cleaning. From our inception, we have always ensured that quality has been the focal point of our business. Your satisfaction is airtight guaranteed with our indoor air quality control program. We provide a visual or digital camera inspection of the existing air duct conditions with the customer present and after the work has been completed to validate right before your eyes that the duct cleaning process was done to your complete satisfaction. It is important to note that very few companies will offer their customers an inspection service so they can see what the ducts are holding before the work begins, and what they look like after the service is finished. more... See more text