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# Basement Expert Waterproofing of Seattle - Sammamish Top Rated

[SammamishTopRated.com](/)

Proudly serving **Issaquah, Redmond Ridge, Klahanie, Pine Lake, Beaver Lake, Snoqualmie** and the greater Sammamish area. **Made for The Evergreen State.**

[SammamishTopRated](/) / [Foundation & Sinkhole Repair](/foundation-repair/)

# Basement Expert Waterproofing of Seattle

★★★★★ 5 · [18 Google reviews](https://www.google.com/maps/place/?q=place_id:ChIJha47RiAFkFQRQC97RSON4k0) · 20722 12th Ave W

[#3 in Foundation & Sinkhole Repair](/foundation-repair/)

Rankings updated October 2026 from Google ratings and review volume - not paid placement

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Basement Expert Waterproofing of Seattle Independent · Locally Owned Is this your business? Claim it free

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20722 12th Ave W, Lynnwood, WA 98036, USA

[Call 206-388-7867](tel:+12063887867)[Visit website](https://basement-expert.com/?utm_source=topratedcities&utm_medium=referral)

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## Why Basement Expert Waterproofing of Seattle ranks here

Basement Expert Waterproofing of Seattle holds a 5 star average across 18 Google reviews, which places it at #3 for foundation and sinkhole repair companies in Sammamish on our rankings. Positions come from verified public ratings and review volume. See the full list on the [Foundation & Sinkhole Repair rankings page](/foundation-repair/).

★★★★★ 5 average from [18 Google reviews](https://www.google.com/maps/place/?q=place_id:ChIJha47RiAFkFQRQC97RSON4k0). No individual customer quotes on file yet.

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