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SeattleTopRated / Septic Services

Lilly's Septic Service

★★★★½ 4.9 · 421 Google reviews · 26207 Maple Valley Black Diamond Rd SE Ste D1

#14 in Septic Services
Rankings updated September 2026 from Google ratings and review volume
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Lilly's Septic Service Independent · Locally Owned Is this your business? Claim it free
26207 Maple Valley Black Diamond Rd SE Ste D1, Maple Valley, WA 98038, USA
Call 425-432-3084Visit website
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Why Lilly's Septic Service ranks here

Lilly's Septic Service holds a 4.9 star average across 421 Google reviews, which places it at #14 for septic services in Seattle on our rankings. Positions come from verified public ratings and review volume. See the full list on the Septic Services rankings page.

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