# Extreme Cleaning Cornwall | Extreme Cleaning Ottawa URL: https://extremecleaningottawa.ca/service-areas/cornwall/ ![Unmarked restoration vehicle on a quiet residential street](/images/hero/unmarked-restoration-van-parked-on-a-quiet-tree-li.webp) Serving Cornwall and surrounding areas # Extreme Cleaning & Biohazard Services in Cornwall Last updated: September 11, 2026 Cornwall and the surrounding SDG counties sit well inside our dispatch range, and the bilingual profile here matches our crews. Cornwall and the surrounding Stormont, Dundas, and Glengarry counties sit at the Ontario-Quebec border and combine an aging industrial-era housing stock with a substantial francophone population, growing retirement demographic, and specific cross-border considerations for waste transport and insurance claim handling. Our field crews dispatch to Cornwall properties regularly, arriving in unmarked vehicles from Ottawa within two to three hours on scheduled work and same-day on emergency biohazard, water damage, and sewage backup calls. Cornwall-area scope includes hoarding cleanup coordinated with Eastern Ontario Health Unit protocols, biohazard response in older downtown properties, unattended death cleanup coordinated with the Ontario Provincial Police Long Sault detachment, estate clearance in aging family properties, and water damage restoration following St. Lawrence River spring flood events. Coverage extends across South Stormont, South Glengarry, Long Sault, Ingleside, Alexandria, Lancaster, and Maxville. Bilingual English and French crews on every dispatch. - Scheduled and emergency dispatch - Unmarked vehicles, neutral uniforms - Bilingual English and French crews Call 24/7: 613-702-1799 [tel:+16137021799 →](tel:+16137021799) Request a Confidential Assessment [#capture-form →](#capture-form) WSIB Compliant & Fully Insured Licensed & Insured 12 Specialties Under One Roof Written Quotes, No Surprises Where Most People Start ## Where Most Cornwall Calls Start Almost every call we take starts in one of these four places. None of them are things you were ever supposed to know how to handle. ### Most companies say no Standard cleaning crews turn down hoarding, biohazard, trauma, and squalor work. You are left calling one number after another. ### Fear of being seen A marked van in the driveway tells the whole street. Families in crisis need the work done without becoming neighbourhood news. ### No idea what it costs Nobody publishes real numbers, and it is rarely clear whether insurance covers any of it until the bill arrives. ### No idea who to call After a death, flood, fire, or sewage backup, the first hour is confusing. You need one team that handles the whole scope. Local Context ## Extreme Cleaning in Cornwall Cornwall and the Stormont, Dundas and Glengarry counties are reached on cross-region dispatch, with strong under-served specialty demand and a largely bilingual client base. ### Neighbourhoods and communities we cover here CornwallStormontDundasGlengarryLong SaultAlexandria Call 24/7: 613-702-1799 [tel:+16137021799 →](tel:+16137021799) Request a free assessment [#capture-form →](#capture-form) ### Response in Cornwall Scheduled and emergency dispatch - Unmarked vehicles, neutral uniforms - Written quote before work begins - Licensed, insured, WSIB compliant What We Handle Here ## Our Extreme Cleaning Services in Cornwall Cornwall and the surrounding SDG counties sit well inside our dispatch range, and the bilingual profile here matches our crews. ![Sunlit empty living room with restored hardwood floor after a full property clearance](/images/misc/sunlit-empty-living-room-with-restored-hardwood-fl.webp) ### Hoarding Cleanup Full-property hoarding cleanup for light through severe cases across Ottawa and Eastern Ontario. Our unmarked field crews handle sorting, sanitization, biohazard containment, and mental-health coordination for hoarding levels 1 through 5, from single-room clutter accumulation through Level 5 situations with active health hazards. Bilingual crews on every dispatch. Learn more [Hoarding Cleanup →](/hoarding-cleanup/) ![DOP-tested HEPA vacuum and negative-air unit staged around a biohazard work area](/images/misc/dop-tested-hepa-vacuum-and-negative-air-unit-stage.webp) ### Biohazard Cleanup Full biohazard decontamination across the National Capital Region for blood, bodily fluids, needles, sharps, and infectious waste. Our discreet crews respond with Category 3 protocols, hospital-grade disinfectants, and Ontario provincial disposal compliance for residential, commercial, and property-management incidents. Insurance direct billing on covered claims. Learn more [Biohazard Cleanup →](/biohazard-cleanup/) ![Empty sunlit heritage living room with bare polished floors after an estate clearance](/images/misc/empty-sunlit-heritage-living-room-with-bare-polish.webp) ### Estate Cleanup Full-property estate cleanup for executors, families, and property managers across the National Capital Region. Discreet crews handle sorting, cataloguing, keepsake preservation, hazardous household waste segregation, secure document destruction, and full sanitization after a passing, downsizing, or estate transition. Learn more [Estate Cleanup →](/estate-cleanup/) ![Gloved hands carefully wrapping a recovered family keepsake during trauma scene cleanup](/images/misc/gloved-hands-carefully-wrapping-a-recovered-family.webp) ### Trauma Scene Cleanup Discreet 24/7 trauma scene cleanup for suicides, crime scenes, unattended deaths, and other traumatic loss events across the National Capital Region. Unmarked crews follow forensic-cleanup protocols, coordinate directly with Ottawa Police and coroner's office, and handle every stage from initial biohazard containment through structural decontamination. Learn more [Trauma Scene Cleanup →](/trauma-scene-cleanup/) ![Industrial hydroxyl generator running in an empty, clean room](/images/misc/industrial-hydroxyl-generator-running-in-an-empty-.webp) ### Odour Removal Molecular odour elimination for severe biological, smoke, urine, decomposition, and heavy tobacco odours across the National Capital Region. Industrial hydroxyl generators, ozone shock treatment, thermal fogging, and shellac-based primer sealer where required. We treat the source at molecular level rather than mask with scent overlays. Learn more [Odour Removal →](/odour-removal/) ![Sealed polyethylene containment barrier and negative air machine in an empty basement](/images/misc/sealed-six-mil-polyethylene-containment-barrier-an.webp) ### Mould Removal & Remediation Professional mould containment, removal, and remediation across the National Capital Region using industry-standard principles for residential attics, basements, crawl spaces, and commercial properties. Moisture-source identification, negative-pressure containment, HEPA-500 air scrubbing, and post-remediation spore-trap air-quality verification before we sign off. Every project includes written scope. Learn more [Mould Removal & Remediation →](/mould-removal/) ![Truck-mounted extraction wand drawing standing water during water damage restoration](/images/misc/truck-mounted-extraction-wand-drawing-standing-wat.webp) ### Water Damage Restoration 24/7 emergency water damage restoration for burst pipes, basement flooding, roof leaks, appliance failures, and municipal backup incidents across the National Capital Region. Truck-mounted extraction, low-grain refrigerant dehumidifiers, centrifugal axial air movers, FLIR infrared imaging, and pin-and-resistance moisture meters throughout every project. Learn more [Water Damage Restoration →](/water-damage-restoration/) ![Cleaned and stripped interior with bare framing after fire restoration](/images/misc/cleaned-and-stripped-interior-room-with-bare-frami.webp) ### Fire & Smoke Damage Restoration Fire and smoke damage restoration across the National Capital Region for kitchen fires, chimney fires, electrical fires, garage fires, and structural fire events. Protocols include dry chemical soot sponges, ultrasonic immersion contents cleaning, HVAC duct decontamination, hydroxyl treatment for smoke odour, and shellac encapsulants for structural sealing. Learn more [Fire & Smoke Damage Restoration →](/fire-smoke-damage-restoration/) ![Clean bare concrete basement floor with drying equipment after decontamination](/images/misc/clean-bare-concrete-basement-floor-with-drying-equ.webp) ### Sewage Backup Cleanup Emergency sewage backup cleanup across the National Capital Region for basement floor drain backups, sanitary sewer backups, sump pump failures, and municipal sewer surcharge events. Category 3 black water protocol with full containment, submersible pump extraction, non-restorable porous material demolition, and botanical broad-spectrum disinfection throughout. Learn more [Sewage Backup Cleanup →](/sewage-backup-cleanup/) How It Works ## How It Works in Cornwall From the first phone call to a property that is safe to use again, here is exactly what happens. 1. 01 ### Call any hour Our line is answered 24/7 by a live person. Tell us what happened. Nothing you say surprises us, and nothing leaves the call. 2. 02 ### Free on-site assessment We attend in an unmarked vehicle, usually within 24 to 48 hours, and walk the property to scope the work properly. 3. 03 ### Written quote before we start You get a written quote with the full scope and price. On covered claims we handle the insurer direct-billing paperwork. 4. 04 ### Discreet crew, full sanitization Our crew removes, decontaminates, and sanitizes to Ontario health-code standards, then confirms the property is safe to use again. ## Need a Written Quote in Cornwall? Scheduled and emergency dispatch. No hidden fees, no obligation, and a free on-site assessment before anything moves. 613-702-1799 [tel:+16137021799 →](tel:+16137021799) Book a Free Assessment [#capture-form →](#capture-form) ## Cross-Region Dispatch to Cornwall and SDG Highway 417 and Highway 138 connect us to Cornwall and the SDG counties on a straightforward run, and the whole area sits inside our 200 km radius. We bring the full equipment load on the first trip so a project does not stall waiting on a second dispatch. A large share of families here prefer French, and every dispatch includes at least one bilingual crew member. Free on-site assessments are booked ahead, usually within 24 to 48 hours, with a written quote before work starts. Client Experiences ## What Cornwall Customers Say Reviews from families, executors, and property managers across the region. > They took a job three other companies turned down, explained everything in French, and left the property spotless. Yvon L.Cornwall > Professional and discreet from the first call. The written quote was exactly what we paid. Diane M.Alexandria Local FAQ ## Questions About Service in Cornwall ### Do you cover the SDG counties as well as Cornwall itself? Yes. Stormont, Dundas, and Glengarry are all within our dispatch range, including Long Sault, Alexandria, and the surrounding rural properties. ### Are your Cornwall crews bilingual? Yes. Every dispatch includes at least one crew member fluent in English and French, including for the assessment and the written quote. ### How quickly can you attend? Our phone is answered 24/7. Emergency biohazard, trauma, water, and sewage calls are prioritized for same-day contact, and scheduled assessments are usually booked within 24 to 48 hours. ### Still have questions? Nothing you describe will surprise us, and nothing leaves the call. Talk to a real person any hour of the day. Call 613-702-1799 [tel:+16137021799 →](tel:+16137021799) ## We Also Cover These Areas Near Cornwall Same crews, same discretion, same written quote before any work begins. KingstonScheduled and emergency dispatch [/service-areas/kingston/ →](/service-areas/kingston/) OttawaSame-day contact, 24/7 phone answering [/service-areas/ottawa/ →](/service-areas/ottawa/) Kemptville & Prescott-RussellScheduled and emergency dispatch [/service-areas/kemptville-prescott-russell/ →](/service-areas/kemptville-prescott-russell/) ![Restoration equipment staged in a cleared and restored room](/images/hero/restoration-crew-equipment-cases-and-air-scrubbers.webp) Phone answered 24/7, same-day callback ## Need Extreme Cleaning in Cornwall? Scheduled and emergency dispatch. Free assessment, written quote, and a crew that arrives without signage. Call 24/7: 613-702-1799 [tel:+16137021799 →](tel:+16137021799) Request a Confidential Assessment [#capture-form →](#capture-form) - Free assessment, written quote - Unmarked vehicles, neutral uniforms - Insurance direct billing on covered claims Quick Message ## Get a Free Confidential Assessment Send us a short message and a team member will call you back the same business day. Unmarked vehicles. Bilingual crews. No obligation. ### Thanks, we have your message. A team member will call you back. If it is urgent, call 613-702-1799 now and someone will pick up. Or call 24/7: 613-702-1799 [tel:+16137021799 →](tel:+16137021799)