Basement Waterproofing in Silverdale, WA

Silverdale basements can take water from roof runoff and from slope seepage, and the two need different repairs. We identify the source before choosing a fix, and any work that sends water to a public storm system waits for written county direction.

Exterior waterproofing cross-sectionA foundation wall with an exterior membrane, a drainage board, and a footing drain that carries water to an outlet, under ground graded away from the house. 12345
Exterior waterproofing: stop the water before it reaches the wall
  1. Grade slopes away from the house
  2. Waterproof membrane on the foundation wall
  3. Drainage board to move water down to the drain
  4. Footing drain in clean rock
  5. Pipe carrying water to an approved outlet

Basement waterproofing in Silverdale: what to know

Water that comes from roof runoff often shows as stains beneath the eaves and at the same spot after rain. Seepage from a slope often shows as a damp band that grows after heavy rain. During wet weather we watch the wall, check the gutters and grade, and test the ground where it meets the footing.

A footing drain works only when its outlet stays open and falls toward a discharge that does not return water to the foundation. We clear the run, confirm its fall, and log the outlet. A public storm connection needs a permit under KCC 12.10.030(2), so that tie-in waits for county direction.

Permits and rules in Silverdale

Before quoting, we check each trench, any spoil placement, and the outlet route against the county’s 150-cubic-yard grading line and its exemptions. Any public storm connection is listed as its own item. We confirm the answer with county staff and file the reply with the parcel record.

Rules change and vary by parcel, so we confirm the current requirements with the city before we start.

How we approach it

  • Sort roof water from slope water before choosing a fix
  • Log the wall through a wet period before the repair
  • Clear and regrade the footing line where it drains
  • Hold any public storm connection for county direction

For the full process, see our Basement Waterproofing page.

Our basement waterproofing work, serving Silverdale

Examples of our work. We build basement waterproofing in Silverdale and the cities around it. See all of our work

Questions from Silverdale homeowners

What makes a Silverdale basement wall sweat after a storm?

Stains beneath the eaves usually point to roof water landing near the foundation, while a damp band that grows after heavy rain usually points to slope seepage or ground moisture. Each pattern gets a different repair, so we identify it first. One patch rarely solves both.

Does the county grading line reach a Silverdale basement dig?

Kitsap County’s grading brochure sets a permit at 150 cubic yards or more and exempts excavation below finished grade, subject to its listed conditions, including the one-acre limit. We total the cut and fill, confirm the exemption with county staff in writing, and then schedule the crew.

Could a Silverdale footing drain discharge into a county storm pipe?

Only with county direction, because a connection to a public storm drainage system needs a permit under KCC 12.10.030(2). We weigh the lot’s own outlet options first, then set out each one with its drawbacks on paper.

Other work in Silverdale

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Talk to us about your project

Call or email us. We’ll talk through the work and set up a time to see the site.

Call 206-483-5334Get a quote