Terracotta Foundation Basement

Project date: February 2025

Location: Ridgefield, Washington

The Challenge

The homeowner was looking forward to finishing the basement of their 1925 Craftsman-style home but understood the importance of protecting their investment with a reliable waterproofing system. This project was a unique situation for us in the Northwest, as the home had a terracotta block foundation. The homeowners were worried an inexperienced basement waterproofing company would ruin the unique terracotta foundation. 

Our Solution

Knowing that most major waterproofing companies have shifted to simply capturing moisture rather than truly drying out the soil, this homeowner let Better Basements and Waterproofing earn their business with a full perimeter drainage system. This approach is ideal for the unique Terracotta foundation because it dries out the soil that is pressing up against it, protecting it for another hundred years!

Before and After Photos

Corner of the Terracotta foundation basement
Terracotta foundation floor
Terracotta foundation trench
18” wide concrete trench cut and ready to start trenching!
Terracotta foundation trench
Trenching all done with 6” clay footer left undisturbed and squared up!
Terracotta foundation waterproofing
4” perforated pipe installed in the trench and back filled with drain rock. Cold joint diverter and vapor barrier on the walls completes the capture system!
Terracotta foundation new cement floor
Concrete poured and smooth! In about a day this basement will be ready for framing and finished out.
Terracotta foundation outside discharge
Once this glue and mortar dries you can push stones back up against this discharge and you will see it even less! Can you even find it?
Terracotta foundation outside sump pump pop up emitter
Sump pump pop-up emitter. This is where the water from the pump will bubble out. Below the discharge is a large hole filled with rocks to dissipate the water and prevent erosion.
Terracotta foundation sump pump
Our famous sump pump basin with side discharge! The white piece of plastic sticking up is our dehu port that ties into the system. This allows you to connect the dehumidifier to your drainage system so you never have to empty a dehu bucket ever again!
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