Controlled removal
Black mold
removal.
Contain the problem. Correct the conditions.
Dark-coloured mold should be handled according to the extent of growth and the affected material, not colour alone. ASM contains the area, removes contamination and addresses moisture conditions so the remediation solves more than the visible surface problem.

Dark-coloured mold should be handled according to the extent of growth and the affected material, not colour alone. ASM contains the area, removes contamination and addresses moisture conditions so the remediation solves more than the visible surface problem.
What’s included
A complete scope,
not a surface fix.
Controlled work-area containment
Personal protective equipment
HEPA filtration
Material removal and surface treatment
Prevention plan and warranty documentation
How the work happens
Four clear stages.
One accountable team.
A small contained project may be completed in one day; widespread or concealed growth can take several days. ASM confirms the expected schedule after inspection.
- 01
Evaluate
We determine the extent, affected materials and likely moisture pathway.
- 02
Isolate
Containment is established before contaminated surfaces are disturbed.
- 03
Remove
Materials are removed or treated using procedures appropriate to their condition.
- 04
Prevent
The cause and prevention recommendations are documented before project closeout.
Project scope
What shapes the work?
ASM confirms the responsible scope after a free inspection because materials, access, moisture source and containment matter more than a generic online estimate.
Book a free inspection ↗- 01Extent of visible and hidden growth
- 02Material removal
- 03Containment size
- 04Moisture-source repair
- 05Access and occupied-space protection


Proof after the work
Inspected. Documented.
Backed in writing.
After the job is completed and inspected, ASM provides a Mold Remediation Warranty Certificate for the serviced areas. It gives homeowners, buyers, sellers and real estate professionals a clear record of professional treatment.
See completed projectsLocal service guides
Black mold removal
across Ontario.
Each city guide covers the local building stock, the conditions that drive this work there and what ASM typically finds on site.
Helpful answers
Questions about black mold removal
Is every black-coloured mold toxic black mold?+
No. Mold colour alone does not identify the species or health risk. The remediation decision should be based on the amount of growth, affected materials, moisture source and occupant considerations.
Should I use bleach on black mold?+
Health Canada advises against using bleach to clean mould. Large areas or recurring growth should be assessed by a qualified professional who can address the underlying moisture source.
Should I leave the area while work is happening?+
Occupancy depends on the size, location and containment plan. ASM explains access restrictions before remediation starts.
Verified Google reviews
What Ontario property
owners actually say.
I had mold in the attic. ASM team did great job in removing the mold. Very reasonable price and genuine team. There services are backed by warranty. Highle recommend for mold remediation.
Aamir - great customer service, handling mold remediation quickly and efficiently. Very helpful throughout the process.
Syed was amazing Highly recommend ASM.
The team was quick to reply and review my situation. They were prompt showing up and quickly addressed the mold situation and added the needed baffles to fix the issues I was having. Great work overall!
Same-day response
Ready for a clear answer?
Start with a free inspection. We’ll explain what we found, what it takes to fix and what happens next.





