Ultimate Mold Crew Inc. offers Mold Removal in Toronto by WSIB & IICR Certified specialists. We provide fast same-day toxic mold removal, remediation, inspection & testing across Toronto & Greater Toronto Area to ensure Safe Air and Healthy Home environment. Call 
647-985-2739 for free mold inspection now.
Safe & Effective Mold Removal Services
Are you noticing black mold growth in your home?
Mold growth is a common problem in city of Toronto, especially in basements, attics, and areas affected by moisture and poor ventilation. Our mold removal services in Toronto are designed to safely eliminate mold at the source while preventing future growth. Spring season in Toronto creates the perfect conditions for mold to return, and this is often when hidden mold problems start showing up.
Our mold removal professionals in Toronto, downtown Toronto, urban areas & surrounding GTA uses industry-approved mold removal methods, including HEPA filtration, containment systems, and negative air pressure. Whether you’re dealing with black mold, hidden mold behind walls, or widespread contamination, our team ensures complete and safe mold removal. All remaining surfaces are thoroughly cleaned and disinfected using EPA-approved antimicrobial agents.
At “The Ultimate Mold Crew”, customer satisfaction is paramount. We specialize in residential and commercial mold removal, indoor air quality testing, thermal imaging & water damage restoration. Our process focuses not just on removing mold, but on identifying and correcting the underlying cause to prevent recurrence. We are your Go-to Mold Guys in Toronto.
What We Do?
Mold Removal
Certified Mold Remediation Specialists in Toronto GTA
Ultimate Mold Crew specializes in professional mold remediation, mold inspection, and black mold cleanup and restoration services. With over 10 years of experience, our team follows industry standards to safely remove mold from residential and commercial properties across Toronto and the GTA Ontario Canada.
Our Master Mold Remediators are fully certified by IICRC, CMR, and IAC2, and recognized by MICRO for professional mold remediation. As a WSIB-approved and BBB-accredited Toronto based local mold removal company, we ensure all mold removal work is completed using safe, compliant, and proven methods.
We handle mold removal in all areas of homes, including:
- Basement mold removal in Toronto homes with moisture and flooding issues
- Attic mold removal caused by poor ventilation and insulation problems
- Bathroom and kitchen mold from humidity and condensation
- Crawlspace and drywall mold contamination
- Black mold removal from drywalls, ceilings, and structural surfaces
Our mold services in Toronto address both the visible mold and the underlying moisture issues to ensure long-term results. Whether the mold is affecting drywall, wooden floor, attic plywood, or concrete, we provide complete remediation solutions tailored to your property.
Call 647-985-2739 for Certified Mold Removal & Professionals in Toronto and the GTA. Our technicians, equipped with protective clothing/PPE (Personal Protective Equipment) and P100 Filtered Mask (Respirator), safely remove all mold-infested materials.
Ultimate Mold Crew Inc.
Why Choose Us For Mold Removal in Toronto?
Choosing the right mold removal company in Toronto is critical to protecting your property and your health. At Ultimate Mold Crew Inc, we combine certified expertise, proven mold remediation methods, and local experience to deliver safe and long-lasting results. Our mission is to provide comprehensive mold problem solutions, ensuring a healthy and safe environment for homeowners and business owners alike.
Certified Mold Removal Professionals
Our team is IICRC-certified with over 10 years of experience handling mold removal and remediation projects .
Advanced Containment & HEPA Filtration
We use negative air pressure systems and HEPA filtration to safely remove mold and prevent cross-contamination during the remediation process.
From Mold testing to containment
We don’t just remove visible mold — we identify moisture sources and fix the root cause to prevent mold from returning and finally containment too.
Compliant with Ontario Safety Standards
Our safe mold removal operations adhere strictly to WSIB compliance, are fully insured, and meet ANSI/IICRC S520 guidelines & OHAS (Occupational Health and Safety) Regulations and the Ontario Building Code
Detailed Documentation for Insurance
We provide full reports and documentation to support insurance claims and property records.
Post-Remediation Verification
We conduct final testing to ensure your Toronto property is safe, clean, and ready for re-occupancy.
Ultimate Mold Crew — get to know us
The Ultimate Mold Crew
- Our Certifications & awards
ECO Friendly
Top Rated — Best Mold Removal in GTA
by HomeStars Canada
Our office
11 Shallmar Blvd Unit 308, Toronto, ON M5N 1J6
Toronto, ON M5N 1J6 Canada
We serve all neighbourhoods in Toronto & the GTA
Brampton, Burlington, Halton Hills, Milton, Oakville, Downtown Toronto, West Toronto (Alderwood, Baby Point, Bloor West, High Park, Humber Bay, Islington, Junction, Kingsway, Lambton Mills, Long Branch, Mimico, New Toronto, Queensway, Roncesvalles, Summerville, Sunnylea, Swansea) Midtown, and The Beaches.
5⭐ Trustindex Verified Reviews
What Customers Say About Us?
Our Mold Removal Process — 4 steps from inspection to post-remediation
Hidden & undetected mold growth
Attic mold is a common issue in Toronto homes, often caused by poor ventilation, insulation problems, and trapped moisture. Because attics are rarely inspected, mold growth can go unnoticed until it spreads or is discovered during renovations or home inspections.
Safe removal & root cause fix
Our attic mold removal services safely eliminate mold while addressing the root cause. We identify ventilation issues, correct moisture buildup, and ensure your attic remains mold-free long-term.
Protects your property value
Removing attic mold is especially important when buying or selling a home in Toronto, as visible mold can reduce property value and delay transactions. Our team provides professional remediation and clearance documentation for peace of mind.
- Serving these areas within GTA
Certified remediation results — same-day service available
Certified remediation results — same-day service available
Why Is Professional Mold Remediation Important?
Mold growth is a common problem in Toronto homes, especially in basements, attics, crawlspaces, and areas affected by moisture. Without proper removal, mold can spread quickly and impact both your property and indoor air quality.
Hiring a professional mold removal company in Toronto ensures that mold is safely removed using proper containment, filtration, and remediation techniques. DIY or incomplete removal can lead to recurring mold problems and hidden contamination.
- Complete mold removal from affected areas, including hidden growth behind walls and ceilings
- Prevention of mold regrowth by addressing moisture sources
- Improved indoor air quality and healthier living conditions
- Protection of your property’s structure and long-term value
If you suspect mold in your home, book a professional mold inspection in Toronto to ensure your property is safe, clean, and mold-free..
Toronto Mold Removal FAQs
What is mold and why is it a problem?
Mold is a fungus that grows in damp areas and spreads through airborne spores. Mold damages drywall, wood, and insulation and reduces indoor air quality. Prolonged mold growth increases structural damage risk and respiratory exposure, especially in enclosed spaces with high humidity above 60%.
Mold stats you should know in 2026
Mold Types: Over 100,000 mold species exist, with some posing significant health risks.
- Fungi Species: The CDC estimates that 500 different species of fungi are currently thought to be harmful to people.
- Health Impact: Approximately 20% of individuals are sensitive to mold, leading to respiratory and allergic reactions.
- Home Invasion: Up to 50% of households have hidden mold issues, often unnoticed until health symptoms or structural damage appears.
- Moisture Connection: Mold growth can start within 24-48 hours in damp conditions, emphasizing the need for swift moisture control. – Fisk and Berkeley Laboratory colleagues found that dampness and mold exposures increase the occurrence of a range of respiratory problems by 30–50%. (Source: Ncbi.nlm.nih.gov )
- According to a report published in the World Health Organization’s (WHO) journal The Lancet, 92% of the world’s population lives in places where air quality levels exceed WHO limits. (Source)
- It is estimated that approximately 800,000 or 7 percent of the citizenry have been exposed to some extent and become sensitized to compounds present in poorly ventilated indoor air. (Source: Ncbi.nlm.nih.gov)
- Mold can be found in up to 9% of homes with a terrace, 26% of medical facilities like outpatient clinics and hospitals, and 18% of elementary to high school facilities. (Source: Ncbi.nlm.nih.gov )
- Each year, nearly 600,000 children under 5 years old die from the effects of air pollution. (Source: Berkley.edu)
- According to a recent survey, 40% of homes in Canada. are affected by mold.
- 20% of the population carries genes that make them more susceptible to mold-related health conditions, according to a study published in the journal Genome Biology.
- Researchers have found around 270 Species of Mold in Canada. (Source: pbs.org )
- About 70% of Homes Have Mold.
- Indoor mold and dampness are associated with an estimated $3.7 billion in annual health care costs for allergic rhinitis.
- In Canada, Toronto, Ontario Tops the List of Most Allergy Patients with Mold and Mildew Sensitivities at 21%
- Any kind of water damage (flood, pipe burst, leakage) can facilitate the growth of a mold in as soon as 24-48 hours. (Source: realtimelab.com/mold-statistics)
Sources –
What is mold remediation?
How much does mold removal cost in Toronto?
Where does mold commonly grow in Toronto homes?
What types of mold are commonly found in Toronto homes?
Common mold types in Toronto homes include Stachybotrys (black mold), Aspergillus, Fusarium Cladosporium and Penicillium. These molds grow in damp environments such as basements, attics, and leak-prone areas. Each type spreads through spores and thrives in humidity above 60%.
SOURCES:
- https://pmc.ncbi.nlm.nih.gov/articles/PMC5490296/
- https://ultimatemoldcrew.ca/pink-mold-shower/
- https://ultimatemoldcrew.ca/blue-mold-on-walls-ceiling-home/
- https://ultimatemoldcrew.ca/white-mold-types-causes-removal/
- https://ultimatemoldcrew.ca/green-mold-dangerous/
- https://ultimatemoldcrew.ca/orange-slime-mold/
How do professionals remove mold?
How can I prevent mold in my home?
How long does mold removal take?
How does mold affect your health?
Mold exposure causes coughing, sneezing, eye irritation, and breathing issues. Individuals with asthma or allergies experience stronger reactions. Long-term exposure increases respiratory risk, especially in enclosed spaces with poor ventilation.
How can I detect mold growth at home?
Detect mold by identifying musty odors, dark spots, water stains, and humidity above 60%. Mold often hides behind walls and ceilings. Professional inspection confirms hidden growth using moisture meters and air testing.”
Ask yourself:
- Do symptoms ease when you leave a certain room?
- Do you feel better while at work or outdoors?
- Do symptoms return within minutes of re-entering your home?
If the pattern repeats, hidden mold could be the cause. Quick mold remediation helps restore indoor air quality and reduces ongoing health problems.
Are you qualified to perform mold removal in Toronto?
Do I need mold testing before removal?
Is black mold dangerous?
Black mold (Stachybotrys) poses health risks with prolonged exposure. It triggers respiratory issues, fatigue, and irritation, especially in sensitive individuals. Professional removal eliminates contamination and reduces exposure risk.
Can I remove mold myself or should I hire a professional?
Does homeowners insurance cover mold removal in Toronto?
Mold Publications & Sources For In Depth Reading
- Chew GL, Horner WE, Kennedy K, Grimes C, Barnes CS, Phipatanakul W, Larenas-Linnemann D, Miller JD, Environmental Allergens Workgroup. “Procedures to assist healthcare providers to determine when home assessments for potential mold exposure are warranted.” J Allergy Clin Immunol Pract 2016; 4:417-22. DOI: 10.1016/j.jaip.2016.01.013.
- Major JL, Boese GW. “Cross Section of Legislative Approaches to Reducing Indoor Dampness and Mold.” J Public Health Management & Practice 2017; 23 (4): 388–395. DOI: 10.1097/PHH.0000000000000491.
- Damon SA, Chew GL. “Mold Cleanup Practices Vary by Sociodemographic and Allergy Factors.” Journal of Environmental Health 2020.
- https://doi.org/10.1016/j.jaip.2016.01.013
- https://doi.org/10.1097/PHH.0000000000000491
- —https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8978808/
- https://www.canada.ca/en/health-canada/services/publications/healthy-living/residential-indoor-air-quality-guideline-moulds.html
- https://www.niehs.nih.gov/health/topics/agents/mold/index.cfm
- https://www.thecanadianencyclopedia.ca/en/article/mold
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