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Septic installers in Defiance County, Ohio

10 listed10 with a ODH bond badge4.7 average from 15 reviewsListings updated Oct 3, 2026

This page covers the ten septic installers with an office in Defiance County. Ten of them carry our ODH-bonded septic installer badge, meaning we matched the business to the Ohio Department of Health's bond list for installers.

Northwest Septic Service, LLC has the strongest Google record here, 4.7 stars from 15 reviews.

Septic installers by town in Defiance County

Featured septic installers in Defiance County

FeaturedDefiance County

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Put your business in this Featured section at the top of the Defiance County page, above the free listings. From $49 a month.

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What a featured listing includes, from $49 a month

All septic installers in Defiance County

Common questions about septic installers in Defiance County

Which septic installers in Defiance County are ODH-bonded?

We matched Northwest Septic Service, LLC, Weasel's Construction, LLC, Watson Construction, Tressler Plumbing LLC, Steffel Excavating and 5 more to the Ohio Department of Health's bond list for installers. Each listing shows the date we checked.

Who is the highest-rated septic installer in Defiance County?

Northwest Septic Service, LLC, with 4.7 stars from 15 Google reviews. We weight ratings by the number of reviews, so a long record counts for more than a perfect score from a handful.

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