Since 1991, Allied Waterproofing & Drainage has earned a reputation for providing quality workmanship and cost-effective solutions for all types of drainage, waterproofing, sewer and water pipe replacement.
We continue to operate today with the same core values established in our humble beginnings: Quality, Honesty, Integrity, and Reliability. Learn more »
“In my 10 years living in Seattle, I have yet to meet a company with as strong a work ethic and commitment to a job well done as Allied Waterproofing.” – Ken Mooney (Seattle, WA)