Is White Mold Dangerous In My Home?

White mold growing in Toronto basementDo you have white mold growing somewhere in your home?

As a mold removal company in Toronto, we respond to calls for all types of mold.  The most common type we see is black mold, though mold comes in all types of colors.  From a health perspective, white mold shares similar characteristics as other colors of mold.

White mold is a natural fungus that colonizes our homes, when the humidity levels and temperatures match its preferences. Its semi-translucent lighter coloring makes it harder to spot than its dark-green and black cousins. Despite this, it has similar implications for our health.

Efflorescence and White Mold

It’s sometimes difficult to discriminate between early efflorescence and white mold, because the two look quite similar. However the former is a crystal found on concrete and masonry structures only, meaning that if the phenomenon appears elsewhere it’s likely to be white mold.

Implications for Our Health

To most people, white mold is no more dangerous than a cashew nut. In fact, many of us could eat it quite safely, although we’re certainly not recommending tasting mold. However, just as nut-allergies can be unpleasant and even dangerous for those sensitive to them, so too can mold have serious implications for those with delicate upper respiratory tracts.  Inhaling mold spores over an extended period of time can possibly have adverse effects on your health.

Mold spores floating in the air may cause chest problems, and even asthma attacks. It’s not uncommon to find family members living in mold-infested homes constantly wheezing and coughing. That’s why it’s advisable to get rid of white mold the instant it begins to colonize our homes.

Mold growing on basement joists in Toronto home

Removing White Mold

Getting rid of mold is a little like sweeping up fine sawdust with a dustpan and a brush. Some of it always seems to end up somewhere else, or gets left behind as a memory on the floor. If sawdust could germinate, our furniture factories would be full of saplings. Unfortunately mold spores sprout as quickly as watercress seeds on wet blotting paper.

The only way to get rid of white mold it to kill it on the spot without disturbing it, which can prove difficult. Keeping your home dry and wiping away mold as soon as you find it will help keep it at bay. If an infestation is advanced, it may become necessary to ask a mold removal company to properly remove the mold.

Remaining White-Mold Free

Unfortunately that’s not going to stop the fungus in its tracks. It grows as easily as those annoying weeds on your front lawn, and it will soon be back if you don’t change the conditions under which it thrives. This involves:


  • Keeping humidity below 60%


  • Ventilating affected rooms by opening doors and windows daily.

Only then, can you begin to bring white mold under control. However once you’ve been under attack, it can prove difficult to keep it away as it may still be lurking in inaccessible places under floors and in attic corners.



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NuSite Group is a Toronto based basement waterproofing and foundation repair company that specializes in Basement Waterproofing, Basement Lowering, and Foundation Repairs. Call us today at 416-622-7000 or 905-731-1228 for a free in-home estimate and inspection.

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Customer Testimonials

Interested in working with us? Check out some of our customer testimonials below and find more on Homestars. We are one of the highest rated basement waterproofing companies in Toronto

Mark Lipton - Homestars Review

Basement Waterproofing

Our basement leaked! Of course . . . we bought a 100 year old house! But my office needed to be in the basement permanently. I interviewed 10 different companies until we decided on the Steinbergs and their crew at Nu-Site! They are professional, reliable, courteous, honest, and they really make an effort to communicate with the client about every step of the process.

Sara Jack - Homestars Review

Foundation and Waterproofing Repairs

After several years of chronic leaks, we decided to have our basement waterproofed once and for all. The team over at Nusite was professional, answered my questions during the project and stayed within their quoted price....which is always a concern for me when working with contractors. Great job overall

Joshua Persaud - Yellowpages Review

Basement Waterproofing

Had several cracks in my basement wall and they would leak whenever we had a heavy rain. It started about a year and a half ago and seems to have gotten worse over the past 6 months. I tried having my neighbor seal it, but it started leaking again within a few weeks. Called several waterproofing companies and got several quotes. Finally went with Nusite contractors for the job. They gave a reasonable quote and I liked the guy that came by for the estimate. They stayed within budget and cleaned up before they left. It's been almost 3 months now and it seems to be working great.