Foundation Waterproofing & Drainage Overhaul in a Seattle

A homeowner in Seattle contacted us with concerns about persistent dampness and moisture damage in their garage. Upon inspection, we discovered that the foundation lacked proper waterproofing and the existing drainage system was improperly installed, allowing water to pool around the structure.

Our Solution:

1. Excavation & Assessment : We carefully excavated the foundation perimeter to expose the affected areas and assess the extent of water intrusion.
2. Hydrostatic Pressure Relief : Installed a French drain system around the foundation to redirect groundwater away from the structure.
3. Premium Waterproofing : Applied a rubberized asphalt membrane to the exterior foundation walls, creating a watertight seal.
4. Drainage Correction : Replaced the faulty drainage system with a durable, sloped design to ensure efficient water diversion.
5. Final Grading & Landscaping : Re-graded the soil around the garage to promote natural water flow away from the foundation.

Result:

The garage floor and foundation are now completely dry, even during Seattle’s heaviest rains. The homeowner reported immediate improvements, with no signs of dampness or mold growth. The upgraded drainage and waterproofing system ensures long-term protection against water damage, extending the lifespan of the garage and enhancing property value.