Through years of research, combined with decades of hands on experience right here in Portland, Oregon, and the wet Pacific Northwest. The Top Rated Professionals at “A” Waterproofing & Drainage Inc. have designed & developed the most effective, reliable and dependable long-term solutions for drying up wet basements and water in crawlspaces, when others can’t. The services, along with the systems we install, have been continuing to keep basements and crawlspaces dry year after year.