Updated on 31-Jan-2026

Toronto homeowners face mold from leaks, winter moisture, and poor ventilation.

This guide ranks the 7 best mold removal services in Toronto and the GTA using real evaluation criteria, including certifications, remediation methods, response time, and local experience.

Intro

Mold problems in Toronto homes are rarely obvious at first. Basement dampness, attic condensation, winter humidity, and slow plumbing leaks are common triggers across the GTA.

Choosing a mold removal company is not about picking the biggest name. It is about finding a team that understands how mold behaves in Toronto buildings, follows proper containment protocols, and removes the source instead of covering it up.

This guide ranks the best mold removal services in Toronto and the GTA based on real homeowner priorities and verifiable service signals.

How We Ranked Mold Removal Companies in Toronto

We reviewed each company using the same factors a careful homeowner would consider before booking a mold inspection or remediation service.

Our ranking criteria included:

• Clear focus on mold remediation rather than generic restoration
• Publicly stated certifications and safety standards
• Defined remediation steps such as containment, HEPA filtration, and source correction
• Experience with Toronto housing types including basements, condos, and older homes
• Consistent third-party trust signals such as Google reviews and local presence

Companies were ranked higher when they demonstrated specialization, clarity, and realistic service scope.

Top Mold Removal Services in Toronto and GTA

1. Ultimate Mold Crew 

Best overall mold remediation specialist in Toronto

Why it ranks #1

Ultimate Mold Crew stands out for its clear mold-first positioning. Being one of the top rated with 100+ 5 Star reviews Toronto mold removal company, Unlike general restoration contractors, their services focus directly on inspection, containment, removal, and prevention.

They publicly reference industry certifications, follow structured remediation protocols, and address common Toronto-specific mold scenarios such as winter moisture buildup, attic condensation, and basement dampness.

Best for

• Basement mold caused by humidity or seepage
• Attic mold from poor ventilation
• Recurring mold after leaks or condensation
• Homeowners who want proper inspection before removal

2. MoldGuy

Established mold-focused provider in Toronto and GTA

Why it ranks #2

MoldGuy presents itself clearly as a mold remediation company rather than a general contractor. Their process language references containment, HEPA filtration, removal, and post-remediation cleanup. This clarity signals experience with structured mold workflows.

Best for

• Homeowners seeking a mold-first contractor
• Inspection-to-remediation projects
• Standard residential mold scenarios

3. Canada’s Restoration Services

Strong restoration and mold remediation combination

Why it ranks #3

Canada’s Restoration Services offers mold removal as part of a broader water damage and restoration workflow. Their public messaging highlights IICRC certification and remediation standards, which makes them a solid option when mold follows a leak or flood event.

They are a good fit for homeowners who want remediation and restoration coordinated through one provider.

Best for

• Mold after plumbing leaks or water damage
• Situations involving insurance coordination
• Projects that require remediation followed by repairs

Trade-off

Their service approach is broader. Homeowners looking for a mold-only specialist may prefer a more focused remediation provider.

4. CPR24 Restoration

Fast-response restoration with mold remediation capability

Why it ranks 4

CPR24 Restoration emphasizes emergency response and rapid containment. Their public service pages outline IICRC-trained technicians and standard remediation steps such as moisture detection, drying, and controlled removal. This makes them practical when mold risk escalates quickly after water damage.

Best for

• Emergency water damage with mold risk
• Time-sensitive containment needs
• Homeowners who need quick on-site assessment

Trade-off

The service model is restoration-led. For detailed mold diagnostics or prevention planning, a mold-focused specialist may be a better fit.

5. Mold Inspections.ca

Technical remediation methods with inspection strength

Why it ranks #5

Mold Inspections.ca stands out for listing specific remediation techniques such as HEPA vacuuming, scrubbing, encapsulation, and dry ice blasting. Method transparency is a strong trust signal because it shows how mold is removed, not just that it is removed.

Best for

• Mold on wood framing or structural elements
• Stubborn or recurring growth
• Situations requiring aggressive removal methods

Trade-off

The brand leans more technical and inspection-driven, which may feel less turnkey for homeowners wanting a single bundled service experience.

6. Restoration Mate

Strong third-party reviews with repair coordination

Why it ranks #6

Restoration Mate shows consistent third-party review activity tied to flood and mold scenarios. Their positioning fits homeowners who want remediation combined with repair coordination after damage.

Best for

• Flood-related mold issues
• Projects involving repairs after remediation
• Property managers and landlords

Trade-off

Mold is part of a broader service offering rather than the primary specialization.

7. ServiceMaster Restore

Large network with mold remediation services

Why it ranks #7

ServiceMaster Restore operates through local franchises and promotes IICRC training across locations. They are often involved in insurance-led remediation and commercial projects.

Best for

• Commercial properties
• Insurance-driven claims
• After-hours response needs

Trade-off

Service quality can vary by franchise, and the approach is often process-heavy rather than consultative.

Quick Comparison Table

What Toronto Homeowners Should Check Before Hiring Mold Removal

Use this checklist before booking any company.

• Ask how they identify the moisture source
• Confirm containment and air filtration steps
• Ask whether removal includes affected materials or surface treatment only
• Check if post-remediation cleaning is included
• Verify certifications and insurance are current
• Clarify whether rebuilding or repairs are part of the service

If answers are vague, keep looking.

FAQs

What is the best mold removal company in Toronto?

The best option depends on your situation. For mold-focused inspection and remediation without unnecessary rebuilding, Ultimate Mold Crew ranks highest for specialization and local experience.

How much does mold removal cost in Toronto?

Costs vary based on area size, severity, and access. Small jobs may start in the low thousands, while larger remediation projects can be significantly higher. Cost of attic mold in toronto varies.

Should I choose a mold specialist or a restoration company?

Choose a mold specialist when the priority is diagnosis and removal. Choose a restoration company when mold follows major water damage requiring repairs.

Is mold removal covered by insurance in Ontario?

Coverage depends on the cause. Sudden water damage may be covered, while long-term moisture issues often are not.

If you are dealing with mold in your Toronto home and want clear answers before committing to removal, start with a free mold inspection. Understanding the source and scope first prevents repeat problems and unnecessary costs.

Ultimate Mold Crew focuses on mold assessment and remediation for Toronto and GTA homes, with clear processes and realistic guidance on what needs to be done and what does not.