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Mould growth along the base of a wall in an East York home

Mould Remediation in East York

Mould inspection, containment, and removal for homes and businesses in East York. IICRC certified specialists.

647-563-9966 · Available 24/7

Mould removal and inspection in East York

East York's housing stock is predominantly post-war construction: semi-detached and detached homes built in the late 1940s and 1950s on short lots across Danforth Village, Woodbine Heights, and O'Connor Drive. These homes were built with plaster walls and old-growth lumber framing that holds moisture differently than modern drywall and dimensional lumber. When water gets in, it stays longer, and mould can establish itself inside the wall assembly before there is any visible sign on the surface.

A large share of East York's housing has since been converted to duplexes or triplexes with basement apartments that were never part of the original design. These suites frequently have bathroom exhaust fans that vent into the wall cavity or joist space rather than outside, and the resulting moisture accumulation over years creates ideal conditions for mould behind the walls and under the flooring.

Properties near the Taylor-Massey Creek ravine system see elevated soil moisture after significant rain events. When that moisture pushes through foundation walls or floor joints, the lower portions of finished basement walls can stay damp for extended periods. Mould in those areas often goes unnoticed until a musty smell that has been present for years finally prompts an inspection.

Cleaning mould without containment makes it worse

Disturbing mould without negative air pressure containment sends spores through your HVAC system and into every room. The result is cross-contamination that turns a contained problem into a whole-house one. Proper remediation requires the right equipment and training.

Our mould services in East York include

  • Mould inspection and visual assessment
  • Air quality and spore count testing
  • Containment with negative air pressure to prevent cross-contamination
  • Mould removal and disposal of contaminated material
  • Antimicrobial treatment with eco-friendly products
  • Attic mould assessment and remediation
  • Post-remediation clearance air testing
  • Residential houses, duplexes, and basement suites
Mould inspection and remediation in an East York home

Think you have mould in East York?

Call us for an inspection. We find the source, scope the problem, and tell you what is needed.

647-563-9966

Mould is usually a consequence of water damage that was not fully dried. If you have had a recent flood or backup, see our water damage restoration in East York. To test the air quality before or after remediation, see our air quality testing service.

Questions from East York homeowners about mould

Our 1950s semi in Woodbine Heights has had a musty smell in the basement for years. Where do we start?
A persistent smell that has been there for years is a reliable sign that mould is established inside the wall framing or under the flooring, not just on the surface. We start with a visual inspection and moisture meter readings to map where elevated moisture is present. That tells us what needs to come out before we can treat anything. You will have a clear picture of the scope before any work begins.
Our basement apartment tenant reported mould behind the toilet in East York. Is that serious?
Mould behind a toilet is almost always connected to a slow plumbing leak at the wax ring, supply line, or tank condensation that has been going on long enough to wet the wall behind it. Behind a toilet in a basement suite, that wall cavity is often moist for months before the mould becomes visible. We assess how far it has spread and what material needs to come out to properly remediate it.
We got water through our foundation wall last spring. Does that mean we have mould now?
Not necessarily, but it is a real risk. If the area was professionally dried and verified with moisture meters, you may be fine. If it was mopped up and dried with fans and a consumer dehumidifier, there is a good chance moisture remained in the wall cavity long enough for mould to establish. A moisture meter inspection will tell you whether the structure dried out completely or not.
What is the difference between a mould inspection and mould testing?
An inspection is a visual and moisture assessment of the space to determine where mould is present and what is causing it. Testing refers to air sampling or surface sampling to measure spore counts or identify species. An inspection tells you what needs to be done. Testing is most useful for clearance confirmation after remediation, or when someone needs documented evidence of contamination for an insurance claim or real estate transaction.
Can you remediate mould in just one unit of a duplex without affecting the upstairs?
Yes. Proper containment with negative air pressure isolates the work area so spores do not migrate to other parts of the building. We set up containment barriers and use air scrubbers to maintain negative pressure throughout the job. The upstairs unit remains habitable in most cases.

Mould problem in East York?

Call 647-563-9966 to talk to a certified mould specialist.

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