24/7 Emergency Dispatch
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No obligation. Certified crews on-site within the hour. We bill your insurer directly.
- IICRC-certified
- Direct insurance billing
- 24/7 dispatch
Mold Remediation
Attic mould usually traces back to ventilation or roof leaks. We remove the growth and address the moisture source so it doesn't return.
- Air quality & surface testing
- Negative-air HEPA containment
- Attic & crawl space remediation
- Post-remediation clearance certificate

Attic Mold Removal Across the GTA
Attic mould is one of the most common, and most overlooked, mould problems in GTA homes. Because the attic is out of sight, the growth often goes unnoticed until a roofer, home inspector, or buyer spots the dark staining across the sheathing and rafters. By then it has usually been spreading for some time.
Restoration Services GTA provides certified attic mould removal for homes across the Greater Toronto Area. We don't just clean the visible growth; we identify and fix the ventilation or moisture problem causing it, then remediate the attic and verify the result, so the mould doesn't simply come back next winter.
Why Attics Grow Mold
Attic mould is almost always a moisture and airflow problem. Warm, humid air from the living space rises into a cold attic, condenses on the underside of the roof, and creates exactly the damp conditions mould needs.
- Poor or blocked attic ventilation that traps humid air
- Bathroom or kitchen exhaust fans venting into the attic instead of outside
- Roof leaks and ice damming letting water in
- Missing or inadequate insulation causing condensation
Fixing the cause, not just the symptom
Cleaning attic mould without correcting the ventilation or leak that caused it is a waste of money; it will return. That's why every attic remediation we do starts by diagnosing the moisture source, so the fix actually lasts.
How It Works
Our Attic Mold Removal Process
Attic remediation has its own challenges, tight access, insulation, and roof structure, and we handle each carefully:
Inspection and moisture diagnosis
We assess the extent of the growth and trace the moisture source, whether it's ventilation, a leak, or improperly vented exhaust fans.
Containment and remediation
We protect the living space below, then remove or treat the affected sheathing and framing using methods suited to wood surfaces, and HEPA-vacuum the area.
Addressing ventilation and moisture
We help correct the underlying issue, improving airflow, redirecting exhaust fans outside, and addressing leaks, so the attic stays dry going forward.
Protecting Your Home Sale and Air Quality
Attic mould is a frequent deal-breaker during home inspections and sales, and it can affect the air quality of the whole home as spores travel down through the building. Proper remediation with documentation protects both.
When attic mould stems from a sudden covered event like a roof leak, remediation may be covered by insurance. We document the cause and extent to insurer standards and advise you honestly on coverage.
Property Emergency? Don't Wait.
Secondary damage starts within hours. Our certified crews are on call 24/7 across the GTA.
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Why Choose Us
Why the GTA trusts Restoration Services GTA
24/7 Emergency Response
Crews on call around the clock, typically on-site within the hour.
IICRC-Certified Crews
Trained, certified technicians working to industry standards.
Direct Insurance Billing
We document the loss and bill your carrier directly.
One Team, Start to Finish
Mitigation through full reconstruction under one roof.

Proudly ServingMold Remediation Across the GTA
Frequently Asked Questions
What causes mold in my attic?
Almost always a moisture and airflow problem: poor ventilation, exhaust fans venting into the attic, roof leaks, or condensation from inadequate insulation. We diagnose and fix the cause as part of the remediation.
Will the attic mold come back after removal?
Not if the cause is fixed. Cleaning attic mould without correcting the ventilation or leak behind it just lets it return, which is why we address the moisture source, not only the visible growth.
Does attic mold affect the rest of my house?
It can. Spores travel down through the building and affect overall indoor air quality, and attic mould frequently derails home inspections and sales, so it's worth addressing properly.
Is attic mold removal covered by insurance?
Sometimes, when it stems from a sudden covered event like a roof leak. Mould from long-term ventilation or humidity issues is usually excluded. We document the cause to insurer standards and advise you on coverage.
Do you fix the ventilation too?
Yes. Correcting the underlying ventilation and moisture issue, improving airflow, redirecting exhaust fans outside, and addressing leaks, is part of how we keep attic mould from returning.
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Secondary damage starts within 24 hours. Our certified crews are on call across the GTA, 24/7.






