Worried about a wet or leaky basement in Seattle, Washington? You’re in the right place. Our list of trusted waterproofing experts includes local contractors who specialize in basement sealing, drainage systems, sump pump installation, and moisture control.
Whether you’re protecting a finished basement or preventing future water damage, these professionals are fully licensed, insured, and carefully vetted for quality and reliability. Take a look below to find the right basement waterproofing contractor for your needs.
Select a Contractor:
Basement Waterproofing and Leak Repair Specialist
R&R Foundation Specialist offers complete basement waterproofing services in Seattle, including sump pump systems, drainage channel installation, and vapor barriers. Their waterproofing solutions protect basements from water intrusion, mold, and long-term moisture damage, ensuring healthier, more durable living spaces.
Residential and Commercial
Basement Waterproofing and Leak Repair Specialist
Emerald City Masonry and Foundation Repairs provides full basement waterproofing and wall stabilization in Seattle with interior drainage systems, sump pump installation, and carbon fiber wall support to stop water intrusion, avoid mold, and preserve foundation health.
Residential and Commercial
Basement Waterproofing and Leak Repair Specialist
Ram Jack West provides basement and wall waterproofing services in Seattle, including interior drainage systems, sump pump installation, concrete lifting, and carbon fiber wall repair to prevent water intrusion, bowing walls, and moisture damage.
Residential and Commercial
Basement Waterproofing and Leak Repair Specialist
Chumley Structural & Foundation Repair provides basement waterproofing and foundation wall stabilization in Seattle, installing interior drainage systems, sump pumps, wall crack repair, and waterproof membranes to prevent moisture damage and support foundation health.
Residential and Commercial
Basement Waterproofing and Leak Repair Specialist
Allied Waterproofing & Drainage provides full-service basement waterproofing in Seattle, including footing drains, sump pump systems, vapor barriers, crawl space encapsulation, and foundation crack repairs. Their systems are designed to eliminate basement moisture, protect structural integrity, and improve air quality. They back their work with professional warranties and a reputation for long-lasting results.
Residential Only
Basement Waterproofing and Leak Repair Specialist
Complete Trenchless offers basement waterproofing services in Seattle. Their services include interior drainage installation, sump pump systems, and comprehensive yard drainage solutions to manage water intrusion and prevent basement flooding. Their experts tailor waterproofing plans to local soil conditions and property needs.
Residential and Commercial