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Sewage & Biohazard Cleanup in Ottawa

Sewage & Biohazard Cleanup in Ontario

Sewage backups and biohazard incidents aren't a bigger version of a regular water leak. A cracked pipe is unpleasant. A sewer backup, a flooded basement that's been sitting for days, or a trauma or unattended-death scene involves contaminated water or materials that carry real health risks. Category 3 water (the industry term for sewage-contaminated water) can carry bacteria, viruses, and parasites, and it spreads fast into drywall, subflooring, and carpet padding. This category covers the 10 Ottawa companies equipped to handle that level of contamination safely, not just general water extraction.

What the job actually involves

A proper sewage or biohazard job starts with containment (sealing off the affected area so contaminants don't spread through the HVAC system or hallways), followed by extraction, removal of anything porous that's absorbed contaminated material, antimicrobial treatment, structural drying, and air quality verification before the space is cleared for use. The team should show up in full PPE (suits, respirators, gloves) and dispose of waste according to biohazard handling regulations, not just bag it with regular garbage.

What to check before hiring

Ask specifically about IICRC certification for water damage and biohazard remediation, whether they carry their own biohazard waste disposal permits or subcontract that step, and what their containment protocol looks like on a sewage job versus a clean-water flood. Response time matters here more than almost any other restoration category: the longer contaminated water sits, the more has to be torn out and replaced.

Our ranked guide to Ottawa water damage restoration services scores providers on certifications, response speed, and how they handle exactly these situations. See our methodology for how the scoring works.

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All sewage & biohazard cleanup in Ottawa, ranked by score and relevance

10 businesses, scored on recent reviews. The order weighs each business's overall score by how much of its reviewed work is sewage & biohazard cleanup, so a lower-scored specialist can rank above a higher-scored generalist.

911 Restoration of Ottawa
4.8(47)✓ Google-verified

When the July 1 floods hit Ottawa, 911 Restoration was the only company to respond to dozens of calls at once, getting crews on-site within 24 hours and keeping families informed every step. Staff explained the work, answered questions with patience, and treated homes and people with care during an overwhelming crisis. The team handles water extraction, mold assessment, fire cleanup, and insurance coordination across Nepean, Kanata, and Orleans. Reviewers praise their manage-and-monitor approach (not over-charging for unnecessary work), detailed reporting, and the way they stay in touch even after the job ends. No hidden upsells noted.

First Response
4.5(78)✓ Google-verified

First Response handles water damage, mold, and fire cleanup across Ottawa with strong technical expertise. Reviewers consistently praise rapid turnaround, detailed explanations, and staff who show genuine care during stressful situations. A few customers report getting disconnected after initial contact, though the overwhelming majority describe reliable follow-up and polished execution from project start to finish. The team delivers specialized services: mold remediation with lab testing, asbestos assessment, basement odour diagnosis, and post-damage deep cleaning. Many clients highlight that staff go beyond standard cleanup to repair structural damage, answer questions thoroughly, and send photo updates throughout jobs. One standout concern is responsiveness mid-project, where a customer lost weeks waiting to reconnect with their assigned contact.

RestorePro Ottawa

#3RestorePro Ottawa

78 low data
4.8(42)✓ Google-verified

Fast response to water emergencies with skilled finishing work that blends seamlessly with existing interiors. One reviewer reported a billing surprise years later and a missed appointment, but the majority describe excellent professionalism and fair pricing throughout lengthy reconstruction projects.

Restoration Mate Ottawa
5.0(27)✓ Google-verified

Staff arrive within 30 minutes to an hour on emergencies and walk homeowners through damage and next steps. Work stays on schedule, invoices match quotes exactly, and crews keep daily photos and updates flowing. Mold, water extraction, sewage backup, and fire damage all handled with the same steady professionalism. Reviewers note transparent pricing, smooth insurance coordination, and thorough drying that leaves no lingering moisture or musty smell. The team explains what caused the damage and how to prevent it. One basement took less time than promised.

Ecoclean Construction
5.0(79)✓ Google-verified

Five-star reviews from homeowners and contractors consistently praise the team and the team for remaining calm and fair-dealing during crises like flooding and water damage. During Ottawa's July 1 floods, when high demand meant the company couldn't take all jobs, reviewers noted the team answered questions and offered advice anyway. Beyond emergency work, general contractors rely on them repeatedly for asbestos removal, demolition, and mold remediation because they show up on time, contain hazards properly, and leave sites clean. Long-term clients report five years of consistent service marked by dependable response times and clear communication. What sets them apart in vulnerable moments is honesty: one reviewer specifically noted that while other companies exploited flood-stressed homeowners, this team explained options without pressure. Inspectors, contractors, and homeowners all describe feeling confident that work would be done correctly and safely.

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Lacasse Building Solutions
4.6(22)✓ Google-verified

Lacasse consistently delivers polished restoration and renovation work with reliable project oversight and clear communication. The team excels at complex jobs-water mitigation, fire cleanup, basement floods-and staff go beyond standard service to keep clients informed and to catch problems early. One complaint centered on a couch damaged during fire cleanup and unresolved for nearly a year despite promises.

Enviropure Home
4.5(226)✓ Google-verified

Most reviews praise routine home cleaning, carpet work, and duct cleaning with reliable scheduling and friendly staff; many clients return year after year. However, two one-star reviews detail significant failures in smoke remediation, where promised duct cleaning proved substandard, work was incomplete, and follow-up visits did not resolve the problem. One review also reports missing items after a visit with dismissive management response.

WINMAR Property Restoration Specialists - Ottawa
3.7(23)✓ Google-verified

Most reviews praise responsive project managers and professional on-site crews who arrive quickly and keep customers informed. However, a significant number of one-star reviews detail serious problems with hired sub-contractors, incomplete repairs, and unresolved complaints that insurance had to escalate. The company's reputation is split between strong emergency response and project coordination versus inconsistent follow-through and accountability for damage caused during restoration.

Ottawa Eco Pro

#9Ottawa Eco Pro

63 low data
4.5(21)✓ Google-verified

Most reviewers praise the team's technical expertise in mold and water damage work, owner responsiveness, and fair rates. One significant negative involved unclear communication on location, missed pickups, and a rug that returned unimproved, though the owner later offered refund and rework. Detail is thin on their 24/7 emergency response and sewage cleanup capabilities.

Ottawa Home Services Group
5.0(1)

One five-star review offers limited evidence; the business lists renovations and contracting on its website, though review feedback does not confirm experience with the water damage and restoration services shown in directory categories.

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Common questions about sewage & biohazard cleanup

How much does sewage cleanup cost in Ottawa?
Costs vary a lot depending on how much material has to be removed and how far the contamination spread, but a contained basement backup often runs a few thousand dollars once extraction, disposal, antimicrobial treatment, and drying are included. Larger jobs involving structural rebuild (subfloor, drywall, insulation replacement) cost more. Get an itemized estimate before work starts, and check whether the company works directly with your insurer.
How often does a home actually need this kind of cleanup?
Most homeowners never need it, but it's common after heavy rain events that overwhelm municipal sewer lines, after sump pump failures, or from tree root intrusion into older sewer laterals. The team Ottawa neighborhoods with aging clay pipe connections see backups more often than newer builds.
What should I expect during the cleanup process?
Expect the crew to seal off the affected area first, remove contaminated porous materials (carpet, baseboards, sometimes drywall), extract standing water, treat surfaces with antimicrobial agents, and run drying equipment for several days. They should test air quality and moisture readings before calling the job complete, not just visually inspect it.
How can I tell if a company actually knows what it's doing versus just running a wet-vac?
Ask if technicians are IICRC certified specifically for contaminated water categories, whether they document moisture readings throughout the drying process, and how they handle biohazard waste disposal. A company that can't explain containment procedures or disposal permits in detail is a red flag for this category specifically.

Last updated 2026-08-12