Run a free full auditLilly's Septic Service of Maple Valley is a Septic Service in Maple Valley, WA, located at 26207 Maple Valley Black Diamond Rd SE Ste D1. The company provides septic pumping, cleaning, time-of-sale inspections, system repairs, drainfield troubleshooting, and new or replacement septic installations for homeowners, realtors, and builders. It serves King County and Pierce County, including Kent, Renton, and surrounding areas. The business holds a rating of 4.90 based on customer reviews.
The company has been in the industry for over 48 years, having started in 1978. Their team includes licensed inspectors and OSM-certified technicians. They perform septic evaluations required by the county for home sales and handle repairs for damaged tanks, lines, and drainfields. Their work process includes documentation for every repair and installation to meet local health department requirements and standards for high groundwater or challenging soils.
Lilly's Septic Service of Maple Valley is known for its 4.90 rating from customers. The company provides same-week scheduling and a 24-hour turnaround on reports.
The business sits on Maple Valley Black Diamond Road Southeast, just a tenth of a mile from Indigo Urgent Care and Puget Sound Fire Station 80. It is also located near the Woodridge neighborhood and Neighborhood Park, both about two tenths of a mile away.
BizScoreAI awards the business a 100 out of 100 for its Discoverability score, which ensures AI crawlers can find every page of the website so AI assistants can recommend the business. The company also receives a 96 out of 100 for its Performance score, reflecting fast website loading that keeps visitors engaged and helps with search engine rankings.
BizScoreAI scanned the website lillyseptic.com on July 3, 2026. Lilly's Septic Service of Maple Valley has a BizScore of 69 out of 100.
AI visibility scan by category: AI Discovery 25 of 25 points, Structured Data 8 of 25 points, Content Readiness 28 of 30 points, AI Trust Signals 12 of 20 points.
Website audit sub-scores (out of 100): On-Page 71, Technical 74, Performance 96, Content 51.
Strengths: 10 checks passed. llms.txt, AI Crawler Access, AI Content Blocking, Organization Schema, Google Business Profile Link, Local Multimedia, Q&A Content, AI-Parseable Headings, About/Team Page, XML Sitemap.
Areas to improve: 7 checks. FAQPage Schema (failed), LocalBusiness Schema (failed), Third-Party Review Links (failed), Speakable Schema (warning), Hyperlocal Targeting (warning), Meta Description (warning), Author Signals (warning).
Browse: Businesses in Maple Valley, WA · Septic Service in Washington · Businesses in Washington
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