Best Sewage Cleanup & Biohazard Companies in Gresham, OR
Category 3 black-water remediation, sewage backup cleanup, trauma scene cleanup, and biohazard decontamination per IICRC S540.
6 firms indexed in Gresham for this practice area.
From Downtown, Rockwood, and Powell Valley, Gresham carries a mix of housing stock that shapes how restoration work gets done, all in the shadow of Mount Hood views. Locally, heavy winter rain, Johnson Creek flooding, and persistent moisture drive recurring water damage. Every firm ranked below serves Gresham and the surrounding Oregon area, and each is scored on the same public-source MetaScore, drawn from BBB, Google, IICRC certification, EPA Lead-Safe status, Yelp, Angi, and HomeAdvisor. That means a water-damage, mold, fire, or storm-restoration company in Gresham earns its rank on verifiable signals, not advertising spend. Whether you are dealing with a burst pipe, a flooded basement, storm-driven roof intrusion, or lingering moisture, the ranking below shows which Gresham restoration companies carry the strongest independently verified track record. Because water and storm damage in Gresham rarely waits for business hours, the firms below are ranked to help you shortlist a trusted, IICRC-informed responder before the next emergency, not during it.
More about Gresham: Wikipedia · Official city site
What are the best sewage cleanup & biohazard companies in Gresham, OR?
As of July 2026, Sarkinen Restoration ranks #1 among the 6 sewage & biohazard firms indexed in Gresham, OR, with a MetaScore of 82/100. Every firm below is scored on the same public-source signals (BBB, Google, IICRC, EPA Lead-Safe, Yelp, Angi, and HomeAdvisor).