Quinn's Excavation & Septic, Inc. is a family-owned, woman-run contractor based in Mashpee that handles septic, sewer, water-line, and general excavation work across Cape Cod, including the many towns the company names on its own site (Barnstable, Bourne, Brewster, Falmouth, Harwich, Sandwich, Yarmouth, and others).
Homeowners who have hired the company describe a consistent, hands-on experience built around septic installations and repairs, new systems, Title V compliance work needed to sell a home, sewer-line hookups, and general site grading and excavation. Reviews from 2022 through 2026 repeatedly name the same two people, owner Adam and office manager Cristen, for staying responsive, explaining the process clearly, and finishing on the timeline and budget quoted. One reviewer, working as a general contractor, specifically praised the crew's attention to detail on a 750-square-yard grading job, and another needed a failed septic system fixed on short notice before a home closing and got same-day help. Several reviewers describe technically difficult jobs, passing a failed Title V inspection, working around tight landscaping constraints, resolved without drama.
The business carries a BBB A+ grade (it is not BBB-accredited, a separate and unrelated status) and a 5.0-star average from 16 online ratings, the same figure mirrored on Porch's aggregate. Every one of the twelve reviews in this record is five stars, with no complaints, negative reviews, or government actions on file. BBB records the company as started 1/1/2014, putting it at about 12 years in business, worth noting because the company's own site separately claims 'over 50 years of experience' on a page that references a different Cape Cod village (Forestdale) than the rest of the site's Cape-wide framing, which reads like unedited template copy from the site's builder rather than a specific claim about this company's actual history.
Anyone considering the company for a septic, sewer, water-line, or excavation project on Cape Cod should confirm current licensing directly and not rely on the site's tenure claim given that discrepancy. Otherwise, the pattern across four years of reviews is unusually consistent: prompt communication, on-budget completions, and technically difficult septic work handled competently.
