Waterproofing a flower patch wall next to your basement involves several key steps. First, the contractor will need to excavate the area around the wall to expose the foundation. This allows for proper inspection and preparation. Next, they will clean the wall and apply a waterproof membrane or sealant to prevent moisture from seeping through. Additionally, installing proper drainage, such as weeping tiles or a drainage system, can help divert water away from the foundation.
In Seattle, you can expect the costs for this type of job to range from $1,500 to $3,500, depending on the complexity of the work and the materials used. Factors such as accessibility and the condition of the existing wall can also influence the price.
It's important to hire a licensed professional for this work, as they will ensure that the job is done correctly and in compliance with local building codes.
As a next step, I recommend getting 2–3 local quotes on Handyman.com to compare prices and services offered by licensed contractors in your area.
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