Basement mold inspections and removal in Toronto and GTA

Basement mold inspections & mold removal in Toronto by certified professionals that detect the source of the mold, remediate and fix the problem permanently.

Experts in Basement Mold inspection in Toronto for over 31 years

CleanFirst has performed over 10,000 mold inspections in the greater Toronto area. Help us help you restore your peace of mind.

If you suspect that you have a basement mold issue, call us and we will send a certified mold inspector to your home to inspect for mold and possible moisture issues that can activate mold growth. We will determine if there is a problem and the extent of it, and will also determine the cause and recommend a permanent solution.

Do I need a mold inspection & mold removal in Toronto?

If you suspect mold, have visible mold or it smells like mold, then through a mold inspection, we can detect the problems with a variety of tools like air quality testing, thermal imaging, and moisture readings.

This first step is simply to contact us to determine the extent of the problem and the tools and options necessary for your particular case.

Toronto Basements and mold

Let’s face it, 90% percent of houses in Toronto are 50 plus years old. Older foundations and narrow spaces when faced with deficiencies in water-shedding will lead to cracks in the foundation and subsequent mold growth.

Most often these small cracks in foundations will go unnoticed for years causing the mold growth in drywall, framing, and baseboards. Window leaks are also a consistent source of not only foundation cracks appearing but also a mold.

While constant high humidity is a cause for concern and a potential mold problem, often the cause of the high humidity is not easily discovered and the cause is never addressed leading ultimately to mold growth and mold smells like in cold cellars.

Where in Basements mold is found?

Since mold needs a food source and water damage to grow, often the exterior foundation walls or any concealed plumbing like basement bathrooms are the perfect source of moisture and organic materials for mold to flourish.

I found mold growing in my baseboard, what to do?

Often in basements, the first sign of a problem is when mold is growing in baseboards which is a clear indication that there is a moisture issue within that wall area. Cleaning is not an option and it will only delay the inevitable and the mold problem will increase. most often mold removal and remediation service in Toronto safely expose the problem and provide an opportunity to correct it by making an informed decision.

How to detect and inspect mold in a basement

Visible mold is easy to detect since most people know what it looks like (fuzzy and cotton-like appearance in different colors) similar to mold found in food.

If is not visible but you have a musty damp earthy smell, then the only way to detect it is by air quality testing for mold. Air is withdrawn through a special cassette where all fungi that exist inside are impacted and collected on the cassette for laboratory analysis.

Fuzzy white powered like substance growing in basement concrete.

That white fuzzy substance growing in the basement is efflorescence, not mold. while it smells like mildew and most often confused with mold, efflorescence is the cause of water damage drying and evaporation will push minerals, salt and calcium to the concrete surface, peeling paint and exposing the aggregate in concrete or block foundations. Special attention is needed and often the problem can be visually observed from the opposite side.

Did you find mold in the basement?

Call us to determine if a mold inspection is necessary or you can deal with it on your own

With our mold inspections, we will examine all aspects of your basement in order to diagnose the issue and provide a permanent solution.

Is mold found in the basement toxic?

Depending on the quantity and organic material mold is decomposing it can cause problems to more susceptible individuals especially with asthma, allergies, or immune-compromised conditions. A mold inspection can determine the fungal’s species and toxicity.

I had water damage in my basement should I be concerned about mold?

Water or flood damage can cause mold growth if not dried properly and inspected for moisture readings to determine the areas that must be removed in order to dry the basement quickly to avoid future mold growth. The type and source of water can also increase the bacteria and unsanitary conditions besides mold growth.

We serve Toronto and all surrounding regions.

Here are some other popular areas we serve (call us if you can’t find your area in the list):

Brampton, Burlington
Etobicoke, East York
Georgetown, Guelph
Markham, Milton, Mississauga
North York
Rexdale, Richmond Hill

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What our Clients Say

  • 5 out of 5 stars! After our loss and dealing with other contractors we were so scared, but you really showed us that there are still good contractors out there. Thanks again! You guys did a great job and thank you for all the extra drywall repairs your crew did....
    Mari Altomare
  • Restoring your peace of mind what an understatement. I was so scared after having the home inspection and after calling other contractors. You educate us and fixed the issue and we didn’t even have to move. Your crew is fantastic and did a great job, you really have nice people...
  • Hi Luis, thank you again for your help on the mold removal, your crew were so helpful to us and did a fantastic job. We forwarded all the information to the real estate agent and were able to sell the house. I will definitely recommend you and your services.
    Julie and Nick

Locations We Serve

Here is a list of popular locations we serve. Call us if yours is not on the list!

Ajax, Aurora
Bancroft, Barrie, Brampton, Burlington
Georgetown, Guelph
Markham, Midland, Milton, Mississauga
Newmarket, Niagara-on-the-Lake, North York
Rexdale, Richmond Hill
Scarborough, St Catharines
Waterloo, Whitby

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