Black Diamond Sealcoating is a professional asphalt sealcoating company based in Portland, Oregon. They specialize in asphalt maintenance services such as sealcoating, crack filling, and pavement marking for both residential and commercial properties. With their knowledge and experience, they can handle any size job while providing personalized service to their customers. They pride themselves on their ability to accommodate any schedule and strive to minimize any impact on customers or their customers' businesses. Black Diamond Sealcoating uses commercial-grade equipment and the industry's best materials to achieve professional results that are not only aesthetically pleasing but also save customers money over the life of their asphalt surfaces. They are fully licensed, insured, and bonded for their service areas in the Portland metro area, Willamette Valley, southern Washington, Hood River County (for larger jobs), and Vancouver areas. With top reviews on platforms such as BBB, Angie's List, Thumbtack, and Google, Black Diamond Sealcoating is a trusted choice for all asphalt maintenance needs.