Mold Inspection & Testing
Mold Inspection & Testing in Toronto and the GTA
CPR24 Restoration provides mold inspections and mold air testing for homes, condos and commercial properties across Toronto and the Greater Toronto Area. Whether you have visible mold, a persistent musty odour or concerns following a leak or flood, an inspection can help assess the affected area and identify moisture conditions that may be contributing to mold growth.
Our on-site mold inspection costs $250 plus HST and includes a visual assessment, moisture readings, thermal imaging where appropriate, and a written photo report with recommendations. If remediation is recommended, we also provide an estimate for the proposed work.
Mold air testing is a separate service available for $600 plus HST. We explain the proposed testing scope and inclusions before booking, so you understand what you are paying for.
Based in North York, CPR24 Restoration serves Toronto, Etobicoke, Scarborough and communities throughout the GTA.


Key Signs You May Need a Mold Inspection in Toronto
While not always visible to the naked eye, several warning signs may indicate you need a professional mold inspection:
- Musty, earthy odours, especially in basements or bathrooms
- Visible mold growth on walls, ceilings, or other surfaces
- Water stains or patches on walls and ceilings
- Recent water damage or flooding
- Increased allergy symptoms or respiratory issues
- Peeling wallpaper or paint
Mold not only damages surfaces but also releases spores and toxins into the air, leading to poor indoor air quality and potential health problems.
If you notice any of these red flags in your Toronto property, it’s best to have one of our certified mold inspector take a look. We have the expertise and equipment to detect mold growth that may not be visible.
You should also consider Indoor Air Quality Testing and/or mold testing if:
You need to comply with local health or building codes.
You experience health issues that improve when you leave your home or office.
You detect a musty odour but can’t find visible mold.
A previous inspection has flagged possible mold issues.


What is included in a Mold Inspection?
A mold inspection assesses visible mold, signs of water damage and moisture conditions in accessible areas of a property. At CPR24 Restoration, the inspection focuses on the areas of concern and helps determine whether further investigation, testing or remediation is appropriate.
Discussion of the Concern
The assessment begins with information about the affected area, including previous leaks, flooding, condensation, musty odours and any earlier repairs or mold treatment.
Visual Assessment
Accessible surfaces are checked for visible mold, water staining, deterioration and other signs of moisture damage. The areas inspected depend on the concern and the agreed scope of the appointment.
Moisture Readings
Moisture meters are used to assess relevant building materials. These readings help identify damp areas that may require drying, further investigation or corrective work.
Thermal Imaging
Thermal imaging may help identify temperature patterns associated with moisture concerns. Suspected areas are assessed alongside visual observations and moisture readings. Thermal imaging does not directly identify mold or show through walls.
Written Photo Report and Recommendations
Following the inspection, you receive a written photo report summarizing the findings, assessment limitations and recommended next steps. If mold remediation is recommended, an estimate is provided for the proposed work.
Laboratory air or surface sampling is separate from the basic inspection and must be agreed upon before it is performed.
Frequently Asked Questions About Mold Inspection and Testing
How much does a mold inspection cost in Toronto?
CPR24 Restoration’s on-site mold inspection costs $250 plus HST. It includes an assessment of accessible areas of concern, moisture readings, thermal imaging where appropriate, and a written photo report with recommendations.
Is mold air testing included in the inspection fee?
No. Mold air testing is a separate service available for $600 plus HST. The testing scope and inclusions are confirmed before booking.
Should I book an inspection for a musty basement?
A persistent musty odour can justify an assessment, particularly if there has been a leak, flooding or ongoing dampness. The inspection helps identify observable conditions and determine whether further investigation is appropriate. An odour alone does not establish the extent or location of a mold problem.
Do moisture meters and thermal cameras detect mold?
These tools help assess moisture conditions and temperature patterns. They do not directly identify mold species or confirm the condition of every concealed surface. Findings are interpreted together with the visual assessment and property history.


Will I receive a written report?
Yes. The inspection includes a written photo report outlining the findings, limitations and recommended next steps. A remediation estimate is provided if corrective work is recommended.
What happens if mold is found?
The findings and recommended next steps are explained in the report. Depending on the affected materials and extent of the problem, recommendations may include moisture-source correction, drying, cleaning, remediation or further investigation.
Do you inspect condos and commercial properties?
Yes. CPR24 Restoration provides mold inspections for homes, condos and commercial properties. Access requirements and the scope of the assessment are discussed before booking.
Which areas do you serve?
CPR24 Restoration is based in North York and serves Toronto and communities throughout the GTA. Contact the team to confirm availability for your property.
Choosing a Mold Inspection Company in Toronto
When selecting a mold inspection service in Toronto, look for the following qualifications:
- Certification from a reputable organization like IICRC
- Extensive experience with Toronto’s unique climate and building types
- Positive customer reviews and references
- Clear explanation of their inspection process and fees
- Use of third-party labs for unbiased sample evaluation.
- Willingness to answer all your questions


Air Quality Testing in Toronto
Concerned about your indoor air quality? Our professional team provides detailed mold inspections and indoor air tests!
We’ll conduct a full-on-site mold and air quality evaluation, giving you clear, reliable results. Even hidden mold behind walls won’t escape detection.
After laboratory analysis, you’ll receive a comprehensive report outlining findings, problem areas, and actionable solutions.
Scroll down for more details about the different types of testing we offer.
Mold Inspection vs. Mold Air Testing: What Is the Difference?
A mold inspection assesses the property for visible mold, moisture conditions and signs of water damage. Mold air testing involves collecting air samples for laboratory analysis of airborne mold spores. These services provide different information and are not interchangeable.
An inspection is generally the starting point for understanding a moisture or mold concern. Depending on the findings and the purpose of the assessment, laboratory sampling may be considered to provide additional information.
When mold air testing is arranged, the sampling locations, number of samples, laboratory analysis and reporting inclusions are explained before the appointment. Results should be interpreted alongside the property assessment and the conditions present when the samples were collected.
Mold air testing does not identify every hidden source of mold, diagnose health conditions or test for all indoor air pollutants.


Do You Need Air Testing If Mold Is Visible?
Air testing is usually not necessary simply to confirm that visible mold needs to be addressed. The priority is to assess the affected area, identify the moisture problem and determine appropriate cleanup or remediation.
Health Canada generally does not recommend routine residential air testing for mold. Air test results cannot predict health effects and may provide limited information about the cause of a moisture problem.
Sampling may be considered for a specific assessment objective or agreed project requirement. CPR24 Restoration explains the purpose and limitations of proposed testing before you decide whether to proceed.
Residential & Commercial Air Quality Testing in Toronto
Both homes and offices can have indoor air pollution. This can happen for many reasons. Poor ventilation is one cause.
Airborne dust from ducts can also contribute. Other factors include carbon monoxide (CO), sewer gas, lead, mold spores, radon, and asbestos. Identifying the root cause of the issue is key to resolving it.
To assess air quality, we take air quality samples and compare them with samples from the outdoors. An accredited third-party laboratory then tests these samples to ensure accurate, unbiased results. Once you receive the air quality test report, we will recommend the best solution based on the findings.


Health Risks of Mold Exposure in Toronto
Not everyone is sensitive to mold. However, being around it for a long time can lead to health problems. This is especially true for children, older adults, and people with weak immune systems. Potential health effects include:
- Allergic reactions (sneezing, runny nose, red eyes, skin rash)
- Asthma attacks in people with asthma
- Irritation of the eyes, skin, nose, throat, and lungs
- Respiratory infections
- Headaches and fatigue
- In severe cases, neurological issues or lung infections
If you think mold is causing health problems, talk to a healthcare professional. Also, make sure to fix the mold issue in your home.
Mold Prevention Tips for Homeowners in Toronto
Professional mold testing is important for finding mold problems. However, Toronto homeowners can take steps to prevent mold growth:
- Control indoor humidity levels (ideally between 30-50%)
- Use exhaust fans in bathrooms and kitchens
- Fix water leaks and water damage promptly
- Ensure proper ventilation throughout the home
- Clean and dry any damp areas within 24-48 hours
- Use mold-resistant products in high-moisture areas
- Regularly clean and maintain gutters and downspouts
- Slope the ground away from your home’s foundation
Implementing these preventive measures can significantly reduce the risk of mold growth in your Toronto property.


Mold Inspection and Testing Costs in Toronto
The cost of mold inspection and mold testing in Toronto can vary depending on several factors:
- Size of the property
- Extent of the inspection (visual inspection vs. air/surface sampling)
- Number of samples taken
- Turnaround time for results
A standard residential mold inspection usually costs between $250 and $500, with the use of thermal imaging cameras and moisture meters. An air quality test in Toronto typically starts around $600, which includes key area air sampling, thermal imaging, VOC readings, and a full diagnostic report with remediation recommendations and laboratory analysis.
Mold Inspection Services in Toronto
CPR24 Restoration provides professional mold inspection and testing services for Toronto homes, condos and commercial properties. Based in North York, our team serves properties throughout Toronto, including Etobicoke, Scarborough, downtown and surrounding neighbourhoods.
An inspection can help assess concerns such as visible mold, persistent musty odours, water staining or moisture damage following a plumbing leak, roof leak or basement flood. We inspect accessible areas of concern, including basements, attics, bathrooms, garages, walls and ceilings, using visual observations, moisture readings and thermal imaging where appropriate.
Toronto properties present different inspection needs. Older homes may have concerns involving basement dampness or attic condensation, while condos may require assessment following plumbing leaks or moisture damage around bathrooms and adjoining rooms. The inspection scope is tailored to the property, the reported concern and the areas available for assessment.
Following the inspection, you receive a written photo report outlining the findings, limitations and recommended next steps. If further investigation, separate laboratory testing or mold remediation is recommended, our team explains the proposed scope and associated costs.
To arrange a mold inspection in Toronto, call 416-551-8287 or request an appointment with CPR24 Restoration.

How It Works
Enter Details
Contact CPR24 Restoration with your property location and a description of the concern. Photos and information about previous leaks, flooding or repairs can help the team understand the situation before the appointment.
Book Your Mold Inspection
Call 416-551-8287 or submit an appointment request to discuss mold or moisture concerns at your Toronto or GTA property.
Receive Findings and Next Steps
Following the assessment, you receive a written photo report with findings and recommendations. If remediation is recommended, a separate scope and estimate are provided.
Professional mold removal typically costs between $1,800 and $3,800 for smaller, contained areas, while larger or more extensive remediation projects may range from $4,000 to $10,000 or more. The final cost depends on the size of the affected area, severity of contamination, accessibility, and whether damaged materials require removal. Pricing may include containment, HEPA air filtration, antimicrobial treatment, and disposal. CPR24 Restoration provides professional mold inspections and detailed remediation estimates. Drywall replacement, painting, and reconstruction are generally quoted separately.
Small patches of mold on accessible, washable surfaces can sometimes be cleaned safely with appropriate protective equipment. However, professional mold removal is recommended for extensive contamination, recurring mold growth, sewage-related contamination, or mold affecting drywall, insulation, and concealed areas. Improper removal can spread mold particles and leave contamination behind. CPR24 Restoration follows IICRC S520 remediation practices, using containment barriers, HEPA air filtration, and professional cleaning procedures to help prevent contamination from spreading.
Black mold refers to mold with a dark appearance and does not necessarily identify a particular species. Exposure to indoor mold can cause allergic reactions, respiratory irritation, and worsening asthma symptoms in susceptible individuals. Mold colour alone cannot determine its health risks. Any visible indoor mold should be investigated, especially when it covers a large area or repeatedly returns. Professional mold remediation may be recommended depending on the extent of contamination and affected building materials.
Common signs of hidden mold include persistent musty odours, water stains, peeling paint, warped baseboards, damp drywall, and previous water damage. Mold can develop behind walls, beneath flooring, above ceilings, and inside concealed cavities where moisture remains trapped. CPR24 Restoration uses moisture meters, thermal imaging, and visual inspections to identify suspicious moisture conditions. These tools help locate potential moisture problems but do not directly confirm mold growth. Additional investigation or selective removal of building materials may be necessary to identify concealed contamination.
Professional mold remediation typically takes one to several days, depending on the size of the affected area, contamination levels, and materials requiring removal or treatment. Smaller projects may be completed within one day, while larger projects may require additional time for containment, demolition, cleaning, drying, and verification. HEPA air scrubbers may remain operating after active remediation when appropriate. Drywall replacement, painting, and other reconstruction work are generally scheduled separately
Professional mold remediation typically includes assessing the affected area, installing 6-mil polyethylene containment barriers when required, using HEPA-filtered air scrubbers and negative air pressure where appropriate, removing contaminated materials, HEPA vacuuming, and detailed surface cleaning. CPR24 Restoration follows IICRC S520 practices and uses Benefect antimicrobial treatment when suitable. Moisture assessments, dehumidifiers, and additional drying equipment may also be required. The exact scope depends on the extent of contamination, affected building materials, and property conditions.
Mold-contaminated drywall often requires removal because drywall is a porous material that can absorb moisture and support mold growth beneath its surface. Surface cleaning or antimicrobial spraying alone may not adequately address contamination within the material. When mold affects drywall, insulation, or concealed wall cavities, professional remediation may involve controlled demolition, HEPA vacuuming, detailed cleaning, and appropriate antimicrobial treatment. CPR24 Restoration evaluates affected materials to determine whether cleaning is sufficient or selective removal is necessary. Drywall replacement and reconstruction are quoted separately.
Yes, mold can return after professional remediation if the underlying moisture problem has not been corrected. Common causes include plumbing leaks, roof damage, condensation, high humidity, and inadequate ventilation. Professional mold remediation removes or cleans contaminated materials, but preventing future growth also requires moisture control. Repairing leaks, improving ventilation, maintaining appropriate indoor humidity, and promptly drying water-damaged materials can significantly reduce the likelihood of mold returning.
A professional mold inspection is recommended when the extent, location, or cause of contamination is unclear. However, air quality testing is not always necessary when visible mold is already present. Testing may be useful when there are persistent musty odours without visible growth, concerns about hidden contamination, or a need for independent post-remediation verification. CPR24 Restoration offers mold inspections, moisture assessments, and air quality testing to help evaluate property conditions and determine appropriate remediation recommendations.
Homeowners insurance may cover mold remediation when the contamination results from a sudden and accidental water damage event covered by the policy. Mold caused by long-term leaks, excessive humidity, condensation, or inadequate maintenance is often excluded. Coverage depends on the insurance provider, policy wording, and cause of damage. CPR24 Restoration assists homeowners with inspection reports, photographs, remediation estimates, and supporting documentation for insurance claims. Homeowners should confirm their specific coverage with their insurance provider.
CPR24 Restoration has office locations in North York, Richmond Hill, Vaughan, Aurora, Etobicoke, Mississauga, and Oakville. Our team provides on-site mold inspections and professional mold removal across Toronto and the GTA, including Scarborough, Woodbridge, Maple, Markham, Stouffville, Newmarket, King City, Bradford, Bolton, Caledon, Brampton, Burlington, Milton, Pickering, Ajax, Whitby, Oshawa, and Uxbridge. Services include attic, basement, bathroom, and other residential and commercial mold remediation. Call 416-551-8287 to confirm availability and arrange an assessment at your property.
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Featured CPR24 Restoration Projects
At CPR24 Restoration, we take pride in delivering high-quality restoration services that help homeowners and businesses recover from disasters. Our featured projects showcase real-life examples of water damage restoration, mold removal, fire damage recovery, and more. Each project highlights our expertise, rapid response, and commitment to restoring properties efficiently and safely. From minor repairs to full-scale restorations, we ensure every job is completed with precision and care.
What Our Clients Are Saying
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Marilyn LoweTrustindex verifies that the original source of the review is Google.
We consider ourselves fortunate to have happened upon CPR24 Restoration via a Google search when we were in need of remediation work for a mold issue in our basement. The glowing reviews prompted us to call and we quickly became aware of why this company has met with so much success. As soon as Chris arrived we could see his mind turn to problem-solving mode. He assessed our situation, outlined the work that needed to be done and most importantly provided reassurances that his team could get right on it. It gave us peace of mind to know that CPR24 could not only deal with the mold issue but also put everything back together and refresh all the areas involved. Not having to go in search of renovation contractors was particularly important to us as we had time constraints to get the work done. We were impressed by the efficiency of the trades and the respect shown to us and our home by all the workers involved. And it was nice to see some of the same faces throughout the project which provided continuity for us. It was evident that these individuals took pride in their work and were committed to a job well done. We thank CPR24 for its professionalism and timely service and certainly recommend it for your restoration needs.![]()
Mario CaniTrustindex verifies that the original source of the review is Google.
I had a flood in my basement and I called right away to get help. The team was extremely professional and efficient. They were with me every step of the way, and answered all the questions that I had. This is by far one of the most professional companies I have ever had the pleasure of dealing with. I would recommend them to everyone that I know because they really care about their work and they treat the customer with the upmost importance and respect![]()
Automotive serviceTrustindex verifies that the original source of the review is Google.
Outstanding service from CPR Restoration! They were fast, professional, and took care of everything with great attention to detail. Highly recommend for any restoration needs.![]()
siobhan freedmanTrustindex verifies that the original source of the review is Google.
Recently found mold in my attic, called CPR24 Restoration after finding them on the first page of Google. They picked up the phone straight away and gave me a whole detailed rundown on the steps that would need to be taken in my attic. They were very professional and efficient throughout the entire process. Overall excellent mold removal and remediation company with quick and professional service. Beyond satisfied with the results! Will be recommending to my friends&family.![]()
Ryan McCahillTrustindex verifies that the original source of the review is Google.
I called CPR24 Restoration after a condo water leak I recently experienced. After searching flood companies on Google and countless calls with other companies, CPR24 Restoration was the one that stood out to me most and was honestly most helpful throughout the entire process. Chris was quick to answer the phone, and they were the only company that gave me a clear outline of the water damage and flooding process. He met with me the same day of my phone call and was always very punctual. The team was very patient with me, they helped answer all of my many questions and were always very quick to respond if I had any issues throughout the week. I really appreciated how supportive Chris and his team were throughout the entire process. Highly recommend CPR24 Restoration!![]()
Aiden LenehanTrustindex verifies that the original source of the review is Google.
I had an amazing experience with CPR24 Restoration. I had mold in my basement and they were very quick and easy. Great customer service, Highly recommend.![]()
Stacey NdociTrustindex verifies that the original source of the review is Google.
My sister recommended CPR24 Restoration for flood damage and mold removal. I started to smell mold in my basement last week, I called Chris and he was there within the hour. I am so relieved I called him when I did because there were signs of toxic black mold which their team removed very efficiently. Staff was friendly and very punctual. Overall 10/10 experience!![]()
Farid AmirTrustindex verifies that the original source of the review is Google.
Recently I had mold problem in my basement Chris from CPR Restoration came with his professional team and took care of the situation I recommended them to all my friends great company to call![]()
Tatiana TrigazisTrustindex verifies that the original source of the review is Google.
I want to share my wonderful experience with CPR24 Restoration whom I highly recommend to others looking for mold removal companies. I called CPR24 Restoration for the toxic black mold I had in my basement, after finding them on Google. They were always on time, responded quick to my emails, and made me feel very secure throughout the whole process. Their team was very efficient but extremely careful at the same time. So professional and will definitely be keeping their contact for the future.![]()
Progna ParamitaTrustindex verifies that the original source of the review is Google.
I was so stressed out though, but Chris and his team are well organised, skilled, well mannered and very friendly. Anytime I called him, he replied. His main focus on client’s satisfaction. He is a very sincere person. Thanks very much to CPR24.
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