Ultimate Mold Crew is an IICRC Verified, WSIB Certified & Insured Mold Removal Company in GTA with 10+ years of experience. Call  647-985-2739 For Free Mold inspection via video call. Check out our range of water damage & home restoration services including air quality testing below.

FREE MOLD INSPECTION VIA VIDEO CALL

Book your appointment today!

    PH3G+FP Toronto, Ontario
    Featured services

    Water Damage Restoration Services in Toronto and GTA

    Ultimate Mold Crew - Top Rated Award Winning Mold Removal Toronto

    Toronto’s Most Trusted Mold Removal Services

    Need to get rid of mold in your home? Looking for professional mold removal specialist near you in the GTA? Welcome to The Ultimate Mold Crew Inc., we specialize in Mold Removal , Mold Inspection and Indoor air Quality Testing. We have over 10 years of experience with IICRC, CMRC, and IAC2 certified mold cleanup, mold inspection & testing specialists. We are also BBB Accredited , certified by MICRO for Mold Remediation Our mission is to provide quality services and terminate all sorts of black mold infections in your Bathroom, Kitchen, Drywall, Crawlspace or Attic . We fully comply with Ontario Regulation 278/05 (Asbestos & Mold). Serving All Neighbourhoods in TorontoBrampton, 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. 

    Certified Mold Testing & Remediation GTA

    Don’t let mold compromise your living space. Let us help you restore it to its optimal condition. Call ☎️647-985-2739 for WSIB & IICRC-CMRC Certified Professional Mold Removal & Testing in Toronto and the GTA. Specialized in FAST mold detection, mold inspection & testing.

    Our Proven Mold Cleanup Process

    Step 1
    Mold Inspection

    Our IICRC-certified mold specialists begin with a full inspection of your property starting from high-risk zones like basements, attics, and crawlspaces, extending to bathrooms, closets, and behind drywall. We assess moisture levels and use infrared and air quality testing to detect hidden mold growth.

    Step 2
    Mold Detection & Assessment

    We identify the type of mold present (including black mold, aspergillus, or penicillium) and map all contaminated areas. Then we develop a location-specific remediation plan that aligns with local environmental conditions and health guidelines.

    Step 3
    Mold Removal & Containment

    Using HEPA vacuums, antimicrobial treatments, and negative air pressure systems, our team isolates and removes hazardous mould spores. This step ensures airborne particles don’t spread to unaffected areas—protecting your family or occupants from further exposure.

    Step 4
    Deep Cleaning & Post-Remediation

    We disinfect and deodorize the space using eco-safe solutions and restore indoor air quality. Post-removal testing is conducted to ensure your Toronto property is mold-free and safe to reoccupy. This final step confirms full compliance with industry standards for mold remediation.

    Get Rid Of Attic Mold in Toronto GTA

    Attics are prone to mold growth due to their low activity and hidden nature. Homeowners often discover mold during insulation updates, home inspections, or when preparing to sell—potentially deterring buyers. Regular checks are crucial to avoid surprises. Our expert team not only removes attic mold but addresses its root cause to prevent recurrence, providing clearance certificates for your peace of mind. Protect your home and investment with proactive attic maintenance.

    Call ☎️647-985-2739 for emergency Attic Mold Removal in Toronto – Old Toronto – Downtown Toronto.

    We also serve Mississauga, Brampton, Vaughan, Richmond Hill, Markham, Pickering, Ajax – all other nearby locations within Greater Toronto Area.

    Accredited Mold Inspection Certifications
    Ultimate Mold Crew Accredited Mold Removal Certifications

    Why Is Professional Mold Removal & Testing Important?

    Mold is a common household problem that thrives on moisture, airflow, and organic materials. Areas like attics, crawlspaces, drywall, basements, and garages are particularly susceptible. Hiring a professional mold remediation company ensures proper removal, safeguarding both your property and health. If left untreated, mold can cause symptoms like breathing issues, itchy eyes, skin irritation, and headaches.  

    • You get complete mold removal from every affected area.
    • No mold regrowth as we fix moisture sources.
    • You get safer indoor air quality for your family.
    • Your property’s value become 2X.

    To make sure your home is safe, healthy, and mold-free. 👉 Book a free quote today 

    How Much Does Mold Removal Costs In Toronto?

    Mold removal in Toronto typically costs between $200 and $1,000, or an average of $10 to $25 per square foot. The exact price depends on the affected surface (drywall, wood, concrete, carpet, flooring, attic, bathroom, basement, cold room, etc.), the remediation method, and the total area impacted. ** Cost varies and depends on various factors like Type of Area, Removal Method, process, Size of Affected Area, Time Required

    Toronto Mold Removal, Testing & Inspection FAQs

    Mold is a type of fungus that thrives in moist, humid environments. It spreads by producing tiny spores that can grow on various surfaces, especially in damp areas like bathrooms.

    Common types of mold include black mold (Stachybotrys), green mold (Penicillium), and white mold. Prolonged mold exposure can lead to health issues such as respiratory problems and allergies. Preventing mold requires controlling moisture levels and ensuring proper ventilation.

    Here are some critical statistics about mold you might not know.
    ⭐ Mold Statistics

    ⭐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 – https://www.bustmold.com/resources/about-mold/types-of-mold/
    - https://species.wikimedia.org/wiki/Fungi
    - https://ultimatemoldcrew.ca/mold-issues/
    - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1892134/
    - https://www.who.int/data/gho/data/themes/air-pollution/who-air-quality-database/2022
    - https://publichealth.berkeley.edu/news-media/research-highlights/new-research-shows-link-between-childhood-exposure-to-mold-and-asthma/
    - https://www.pbs.org/newshour/science/the-sublime-slime-mold
    - https://ultimatemoldcrew.ca/difference-between-mold-and-mildew/
    - https://search.usa.gov/search?utf8=%E2%9C%93&affiliate=fema&query=mold&commit=Search+FEMA.gov
    - https://www.niehs.nih.gov/health/topics/agents/mold
    Location - Common Mold Hotspots
    Attic - Mold growth due to poor ventilation or roof leaks
    Bathroom - High humidity areas such as showers and baths
    Basement - Prone to dampness and water intrusion
    Windows and Doors - Mold around frames and window sills due to condensation
    Cold Room/Cold Storage - High moisture levels in unheated spaces
    Crawlspaces - Enclosed damp spaces under houses
    Kitchen - Near sinks, drains, and appliances like fridges
    Bedroom - Around windows, on carpet and furniture
    Drywall - Absorbs moisture, supporting mold growth
    Plaster - Older plaster walls may retain moisture
    Ceiling - Water damage from leaks often leads to mold
    Concrete - Mold in porous surfaces exposed to moisture
    Foundation - Humidity and leaks can lead to mold in structural areas
    Near Sinks and Drains - Constant moisture and organic material accumulation
    Behind Appliances - Spaces behind washing machines and fridges often neglected
    --- Mold spores [Ref: Wikipedia.org, Commons.Wikimedia] Mold spores enter Toronto homes through open windows, leaky roofs, clothing, shopping bags, and even pets. Once these microscopic spores land on a damp surface, they begin to grow within twenty-four to forty-eight hours. Science has identified more than one hundred thousand mold species, yet most indoor strains fall into three main groups.

    --- Allergenic: These species trigger allergies, sinus irritation, and asthma flare-ups. Sensitive individuals often react strongly, but even people without allergies can develop mild symptoms.
    --- Pathogens: These molds mainly affect individuals with weakened immune systems or those recovering from serious illness.
    --- Toxigenic:These strains produce dangerous mycotoxins and can cause health issues even in healthy adults.

    Indoor mold growth is common in Toronto because of the city’s humidity cycles, older building stock, and basement moisture problems. Detecting and treating mold early prevents structural damage and reduces health risks, which is why trained mold remediation professionals are essential for accurate identification and safe removal. Lets know more about some common types of mold or fungi seen in household properties in Toronto, GTA areas.

    --- Aspergillus

    This species appears frequently in Toronto homes, especially in kitchens, bathrooms, and air conditioning systems. With more than one hundred and eighty known strains, Aspergillus can show different colours and textures.

    Most strains are harmless, but some can cause respiratory illness or lead to aspergillosis in individuals with weaker immune systems. Because visual identification is unreliable, testing is recommended whenever Aspergillus is suspected.

    --- Cladosporium

    Cladosporium often grows as black or dark green pepper-like dots on bathroom surfaces, painted walls, and fiberglass air ducts.

    It spreads quickly in damp indoor environments and is a common trigger for allergy and asthma symptoms.

    --- Fusarium:

    Appearance: Pink or reddish stains
    Habitat: Carpet, upholstery, wallpaper, draperies
    Temperature behaviour: Continues to grow in near-freezing conditions
    Prevention: Routine vacuuming with a HEPA-grade vacuum reduces spread
    Fusarium spreads fast in homes with chronic moisture issues, especially older Toronto basements and cold storage areas.

    --- Penicillium:

    Allergenic and pathogenic: yes
    Symptoms: sinusitis, difficulty breathing, asthma episodes, chronic health problems in people with immune system disorders
    Appearance: bluish-green fluffy mold
    Habitat: homes with flooding or water damage, constant humidity required
    Treatment: professional mold treatment recommended

    --- Trichoderma:

    Appearance: Small raised white spots, green mold in damp areas
    Habitat: damp places like near leaky windows or around showers
    Growth: quick in damp places
    Symptoms: coughing, sneezing, bronchial infections

    Mold [Ref: cdc.gov] that appears to be orange or red in color is typically found outdoors, given its nature to thrive on decaying plants or moist wood. This type of mold, can appear slimy, is harmless and should only be removed for aesthetic purposes.

    There are many types of mold that look black, and not all “black mold” are as toxic as Stachybotrys.

    SOURCES:
    -- https://en.wikipedia.org/wiki/Spore#Fungi
    -- https://commons.wikimedia.org/wiki/Mold
    -- https://www.cdc.gov/mold-health/about/index.html#cdc_environmental_basics_types-common-types
    -- https://pmc.ncbi.nlm.nih.gov/articles/PMC5490296/
    -- https://en.wikipedia.org/wiki/Cladosporium
    -- https://en.wikipedia.org/wiki/Fusarium
    -- https://ultimatemoldcrew.ca/pink-mold-shower/
    -- https://www.britannica.com/science/Penicillium
    -- https://ultimatemoldcrew.ca/blue-mold-on-walls-ceiling-home/
    -- https://ultimatemoldcrew.ca/white-mold-types-causes-removal/
    -- https://ultimatemoldcrew.ca/green-mold-dangerous/
    -- https://www.cdc.gov/mold-health/about/index.html
    -- https://ultimatemoldcrew.ca/orange-slime-mold/
    -- https://en.wikipedia.org/wiki/Black_mold
    -- https://www.cdc.gov/mold/stachy.htm
    To remove the mold from hard surfaces of kitchen and baths, use undiluted vinegar. You can also use regular bleach but make sure that it is diluted. One cup of bleach should be mixed with 1 gallon of water. Hydrogen peroxide is another mold killing solution. If the mold is greater than 10 square feet, it is best to call a professional.
    Prepare for proper moisture control measures. Use a humidifier to keep the humidity level under 60% or below, as desired.
    Improve the airflow at your house to warrant that there is proper ventilation.
    Ensure all household surfaces are clean and dry at all times to reduce chances of mold to grow.
    Similarly, if there are any leaks, repair them on time and monitor your rooms and spaces regularly.
    Take measures against having a damp environment at home.
    Time taken to remove mold depends on various factors, such as the intensity of mold, type of mold, how much mold is present, and where the mold is growing. On an average, mold removal processes take from 1 to 5 days. During the remediation, its best to stay elsewhere, especially if you are mold-sensitive, as removing mold infestation can be dangerous to health.
    Mold exposure often feels like a seasonal cold, which makes it hard for many Toronto homeowners to recognize that mold may be the real cause. Indoor mold releases tiny spores that irritate the respiratory system. These reactions can appear mild at first and then worsen as exposure continues.
    Common Short-Term Reactions to Mold

    • Sneezing
    • Itchy or watery eyes
    • Nasal congestion
    • Headaches
    • Coughing
    • Asthma flare-ups

    These symptoms appear in many Toronto homes during winter when buildings stay closed and air circulation drops.
    Additional Symptoms Linked to Mold Exposure

    Some individuals experience broader health effects such as:

    • Nausea
    • Fatigue
    • Vomiting
    • Diarrhea
    • Skin irritation
    • Memory difficulty
    • Breathing trouble
    • Immune system stress
    Mold remediation includes taking fast action against mold to ensure that it does not spread beyond easy control. After identifying the source of mold, which is commonly in damp spaces, such as bathrooms, air vents, etc., use antimicrobial application as the first step to mold’s corrective remedy, followed by air filtration, containment, removal, and cleanup. After cleanup, invest in a humidifier to ensure that the humidity level stays low at your house.
    A simple test is to observe how your symptoms behave throughout the day.

    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.

    Mold Publications

    --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/
    Mold detection starts with inspection and ends with proper cleaning or professional remediation. Here are the key steps every homeowner should follow:
    1. Inspect for Visible Signs

    Look for discoloured patches on drywall, wood, fabrics, or basement floors.
    Household mold may appear black, green, white, red, or even blue.
    Textures can vary: fuzzy, slimy, furry, or slick.
    👉 Tip: Visible mold often indicates a deeper, hidden problem.

    2. Monitor Health Symptoms

    Mold spores can trigger allergies, coughing, watery eyes, and nasal irritation.
    Unexplained illness indoors may be a warning sign.
    Persistent musty odours also point to hidden mold growth.

    3. Test Indoor Air Quality

    Professional and DIY air quality tests can detect spore levels.
    Airborne mold spores lodge in the respiratory system, making early detection important.
    Regular testing ensures your home maintains safe air quality.

    4. Scrub and Clean Surfaces

    Use soap, water, and a stiff brush on affected areas.
    Scrub deeply to reach porous surfaces like wood and drywall.
    Disinfect after scrubbing to minimize regrowth.

    5. Control Moisture & Humidity

    Mold thrives where moisture is present.
    Use hygrometers to keep humidity below 50%.
    Pay special attention to basements, bathrooms, attics, and cold rooms.

    6. Know When to Call a Professional

    If mold covers more than 10 square feet, or keeps returning, call a certified mold removal expert.
    Professionals use advanced tools (infrared cameras, air pumps, moisture meters) and provide detailed remediation plans.
    A professional air quality test is the most reliable way to confirm if mold still exists.

    ✅ Key Takeaway: Small mold patches can be cleaned at home, but recurring or widespread mold requires professional inspection and removal to protect both your property and health.

    References :
    - https://www.canada.ca/en/health-canada/services/publications/healthy-living/residential-indoor-air-quality-guideline-moulds.html
    - https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.664.3855&rep=rep1&type=pdf
    - https://www.niehs.nih.gov/health/topics/agents/mold/index.cfm
    - https://www.thecanadianencyclopedia.ca/en/article/mold
    While anyone can easily carry out mold remediation and the process might seem tempting to do so; it is best to have a license and proper training to do mold remediation, as direct contact with mold is hazardous to health, especially if done without protective gear and good quality chemical solutions. If mold is a growing concern in your area, its best to invest in a training program to learn professional mold remediation.

    Get in Touch for Expert Mold Remediation

    Call us today at any time of the day or night at 647-985-2739 or send us an email at info@ultimatemoldcrew.ca

    Ultimate Mold Crew Reviews.

    The Ultimate Mold Crew Inc. place picture
    5.0
    Based on 34 reviews
    powered by Google
    Helena Agaev profile picture
    Helena Agaev
    19:18 10 Nov 21
    The team inspected the basement and made a quick and thorough work of removing the mold. I really appreciated how they took their time to explain the problem and offer solutions to prevent its reoccurring. Communication was A+++. Would definitely recommend this company.
    Peter Toohey profile picture
    Peter Toohey
    08:16 10 Nov 21
    Great to deal with. Work was finished on time and professionally as promised. The owner was very helpful and walked me through the process. My attic is now mold free!
    Melyssa Hutson profile picture
    Melyssa Hutson
    20:53 28 Sep 21
    I was very impressed with Ultimate Mold Crew’s professionalism and responsiveness. They demolished my whole basement in two days, and cleaned the mold from the walls. Very impressed and I would highly recommend.
    Landen Kennedy profile picture
    Landen Kennedy
    22:29 15 Aug 21
    It is great deal with them, I had a positive experience. I would highly recommend this firm.
    Christopher Sims profile picture
    Christopher Sims
    12:25 19 Jul 21
    Reliable, professional and fast! I needed mold removed urgently due to closing and they were able to provide mold remediation asap!
    James Marshall profile picture
    James Marshall
    15:52 09 Jul 21
    If anyone looking for mold removal in GTA, contact this company & they will provide the best quotes out of all the companies I contacted. I was very lucky that I hired them & they did the great job. I am extremely happy.
    James d profile picture
    James d
    18:56 01 Jul 21
    We have had a variety of mold issues from a knock down and rebuild. Each time we have found mold, Ultimate Mold Removal was easy to deal with and they were quick to visit our property and remove it. highly recommend.
    Kittie Cloris profile picture
    Kittie Cloris
    16:25 19 Jun 21
    Ultimate mold crew arrived at our house, professionally clarified everything, and dressed for mold testing in appropriate protective clothing. We were warned to stay away from the contaminated area, which was also isolated. Their Mold Remediation Services in Toronto ON are strongly recommended.
    Sutton Zavala profile picture
    Sutton Zavala
    18:11 02 Jun 21
    If you need a mold inspection and testing service this company is the best choice. Very prompt in responding and their work is very thorough.
    Matt Selma profile picture
    Matt Selma
    18:07 05 May 21
    Very professional, very kind people who truly just want to help. They took the time to understand my exact situation and offered a ton of advice before helping me. Highly recommended.
    James Amand profile picture
    James Amand
    10:03 06 Apr 21
    wow, i must say these guys are amazing, they removed mold with such an ease and cleaning was upto the mark. I would definitely recommend UMC as the best mold removal service in toronto. great work guys.appreciate it.
    Dewayne Herren profile picture
    Dewayne Herren
    04:42 15 Dec 20
    They did a phenomenal job, great attention to detail. They wore mask and gloves and made sure everything was sanitized properly, furniture, cabinets inside and out and windows. They were conscientious about not using strong smelling products. Best covid disinfection company in my opinion.
    Michael Major profile picture
    Michael Major
    05:42 15 Oct 20
    Thank you Ultimate mold crew for not only solving our mold issue but also disinfected our home! I don’t know if it is humanly possible to be more grateful, especially with everything you now see daily about the virus!!! I sleep a little easier knowing I am doing everything in my power to try and keep my family safe. The Ultimate Mold Crew Inc. truly provided peace of mind by doing what they do best
    Richard Stafford profile picture
    Richard Stafford
    17:22 27 Sep 20
    The guys at The Ultimate Mold Crew Inc. are not only great at their profession but a genuinely kind and helpful people. They spent the appropriate amount of time doing a thorough inspection and evaluation. They offered realistic recommendations for the remediation. They are also professional and reasonably priced. I highly recommend them!
    More reviews

    Expert Mold Cleanup & Prevention Tips

    Explore our blog for detailed mold checklists, DIY tips, guides, and infographics on mould prevention to maintain a healthy home. Get practical solutions with expert advice to kill mold effectively.