Mould remediation in Ontario
Damp patches, musty rooms, mould in bathrooms, basements or attics after a leak: tell us what you see. We will arrange an on-site assessment — moisture source, extent and a clear remediation plan — without medical claims or scare marketing.
Cities we cover
Local pages for Toronto, Ottawa, Mississauga, Hamilton and more, with housing, climate and official contacts for each city.
Toronto
Toronto mould enquiries often involve Great Lakes humidity and basement apartments, with growth showing up in
Ottawa
Ottawa mould enquiries often involve cold winters and humid summers with older housing, with growth showing up
Mississauga
Mississauga mould enquiries often involve GTA suburban stock and finished basements, with growth showing up in
Hamilton
Hamilton mould enquiries often involve lakeshore humidity and older housing, with growth showing up in basemen
London
London mould enquiries often involve southwestern Ontario humid summers, with growth showing up in basements,
Windsor
Windsor mould enquiries often involve extreme humidity near the Detroit River, with growth showing up in basem
Kitchener-Waterloo
Kitchener-Waterloo mould enquiries often involve tri-city suburban and older stock, with growth showing up in
Markham
Markham mould enquiries often involve north GTA newer envelopes, with growth showing up in basements, bathroom
Vaughan
Vaughan mould enquiries often involve north GTA suburban basements, with growth showing up in basements, bathr
Barrie
Barrie mould enquiries often involve Simcoe County cold winters, with growth showing up in basements, bathroom
Thunder Bay
Thunder Bay mould enquiries often involve Lake Superior cold damp, with growth showing up in basements, bathro
Kingston
Kingston mould enquiries often involve eastern Ontario limestone / older stock, with growth showing up in base
How we work
- Send the form with your city, property type and what happened.
- We get back to you to talk through the situation and arrange an on-site assessment.
- You receive a scope and estimate to approve before work starts.
- Mould remediation and moisture control, with photos and notes for your insurer or landlord.
Common mould needs
From inspection to containment — what we help with when mould shows up.
Mould inspection and assessment
Moisture mapping and visual assessment of mould growth extent.
Black mould remediation
Remediation of dark mould growth on building materials after the moisture source is controlled.
Crawl-space and basement mould
Mould in basements, cellars and crawl spaces with chronic damp.
Attic and loft mould
Mould in attics, loft spaces and roof voids from leaks or poor ventilation.
Bathroom and wet-room mould
Mould in bathrooms, showers and other wet rooms.
HVAC and duct mould cleaning
HVAC and duct mould cleaning in Ontario – Ontario Mould Removal.
Mould remediation help across Ontario
Mould follows moisture: bathrooms, basements, crawl spaces, attics and HVAC after leaks or incomplete drying. Ontario Mould Removal focuses on finding the source, assessing extent and planning containment and cleanup in Toronto, Ottawa, Mississauga, Hamilton and throughout Ontario.
We start with the moisture source and how far growth has spread, then plan containment, material removal and drying so you know what happens next.
Straight answers on cost
Costs depend on the damage, the materials and access, and we explain them after an on-site assessment. Our cost guide uses public sources and general ranges.
Quick answers
How do I get help?
Send the request form with your city, property type and what happened. It is open 24/7.
Do you help with insurance claims?
We document the damage with photos and notes you can pass to your insurer. Your policy decides what is covered.
Are prices listed?
No. Estimates follow an on-site assessment.
Where do you cover?
See the areas pages for cities across Canada/Ontario.
Need help now?
Stop active leaks if safe, avoid disturbing large growth, take photos, then send us the form.
Request help 24/7