Top 6 Sewage Cleanup & Biohazard Companies in Mississippi (2026)

Published: May 30, 20262026417 words2 min read

Key Takeaways

6 sewage & biohazard firms in Mississippi qualified for this ranking based on verified data from public sources (BBB, Google, IICRC, EPA, Yelp, Angi, HomeAdvisor).
The top firm in this ranking is SERVPRO of Southaven & Horn Lake, with a MetaScore of 96/100.
Every firm here carries at least one publicly verifiable signal — no firm appears in this article without a cited source.
This list is filtered to firms that explicitly offer sewage & biohazard services. Multi-discipline firms appearing here have that service confirmed on their website or in their public certifications.
Methodology is published in full at restorationindex.com/methodology. Firms can request a correction at restorationindex.com/contact.

Sources cited in this article: Better Business Bureau, Institute of Inspection, Cleaning and Restoration Certification, U.S. Environmental Protection Agency, Google, Yelp, Angi, HomeAdvisor, and Restoration Index.

Based on aggregated public-source data from BBB Business Profiles, Google Business Profile reviews, IICRC certified member directory, EPA Lead-Safe registry, Yelp, Angi Super Service Award lists, and HomeAdvisor recognition, here are the top-ranked sewage & biohazard firms in Mississippi. Each firm receives a 0-100 Restoration Index MetaScore weighted across 9 sources.

Top 6 Sewage Cleanup & Biohazard Companies in Mississippi — Ranked by Multi-Source MetaScore

SERVPRO of Southaven & Horn Lake (Southaven, MS) — MetaScore 96/100. BBB A+ accredited. founded 1992. Quality Business Awards: Best Mold Remediation in Horn Lake, Mississippi 2026. Read the full review.
Guarantee Restoration Services (Gulfport, MS) — MetaScore 83/100. 4.8-star Google rating across 63 reviews. BBB A+ accredited. IICRC certified. founded 1974. Read the full review.
PuroClean of Biloxi (Gulfport, MS) — MetaScore 80/100. 4.9-star Google rating across 81 reviews. BBB A+ accredited. IICRC certified. founded 2018. Read the full review.
PoBoy 911 Restoration (Biloxi, MS) — MetaScore 71/100. 4.8-star Google rating across 51 reviews. BBB A+. founded 2015. Read the full review.
911 Restoration of Mississippi Gulf Coast (Gulfport, MS) — MetaScore 68/100. 4.9-star Google rating across 68 reviews. BBB A+ accredited. founded 2018. Read the full review.
Restoration 1 of Gulf Coast (Gulfport, MS) — MetaScore 64/100. 4.9-star Google rating across 69 reviews. BBB NR. IICRC certified. founded 2017. Read the full review.

Top sewage & biohazard firms in Gulfport

Guarantee Restoration Services leads Gulfport with a MetaScore of 83/100 and 63 Google reviews. Other top-ranked firms in Gulfport include PuroClean of Biloxi (MetaScore 80/100), 911 Restoration of Mississippi Gulf Coast (MetaScore 68/100), and Restoration 1 of Gulf Coast (MetaScore 64/100).

Frequently Asked Questions

How is the Restoration Index MetaScore calculated?

The MetaScore is a weighted average of nine normalized component scores: Google Business Profile reviews (25%), BBB rating + complaint history (20%), IICRC certification (12%), EPA Lead-Safe registry (8%), years in business (10%), Yelp reviews (10%), Angi Super Service Award (5%), HomeAdvisor Top Rated (5%), and regional industry awards (5%). Firms with sparse data have weights redistributed proportionally across the sources we did find. Full methodology at restorationindex.com/methodology.

Who is the top-ranked sewage cleanup & biohazard company in Mississippi?

As of May 2026, SERVPRO of Southaven & Horn Lake ranks #1 in Mississippi for sewage cleanup & biohazard with a MetaScore of 96/100. The full ranking and per-firm breakdowns appear below.

How often is this list updated?

Firm-level data (reviews, BBB ratings, certifications) is refreshed every 30 to 90 days depending on the source. Awards and recognition fields refresh annually. The "Last refreshed" date below the article header reflects the most recent data refresh for this article.

Can firms pay to be included or ranked higher?

No. Restoration Index does not accept paid placement. The MetaScore is calculated identically for every firm in the index, whether or not they have any commercial relationship with Pleiades Consultancy (the publisher of this site). The methodology is published in full so firms can audit how the calculation works.

What if a firm I trust is missing from this list?

Coverage is rolling out city by city. If a firm meets our inclusion criteria (operating in the named region, offering sewage cleanup & biohazard services, with at least one verifiable public signal), they will appear in future refreshes. Firms can also reach out via restorationindex.com/contact to request inclusion.

Sources & Further Reading

Every claim in this article is backed by at least one of the following third-party sources. Linked out to the publisher so you can audit the original.