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Basement Mold

Groundworks' basement waterproofing solutions can remove dangerous mold from your Calgary home and prevent it from returning.

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Mold on basement wall
Mold growing on cement block in basement of a home

Mold in your basement not only looks terrible, but it can impact indoor air quality and your family’s health. Ignoring this problem isn’t really an option, as it often leads to foundational issues with your home and more expensive repairs.

Groundworks’ basement waterproofing solutions tackle the root cause of mold: moisture, humidity, and inadequate drainage. By targeting the source of the problem, we can create a healthier living environment in your Calgary home.



Do you have mold in your basement?
Book your appointment today.

What Is Basement Mold?

Mold is a fungus that thrives in moist, dark spaces—like your basement. It has a unique musty odor and comes in various colors, such as black, white and green. Some molds, like black mold, worsen allergies and respiratory issues.

Mold consumes wooden beams and joists, some types of insulation, and other organic matter, jeopardizing your home’s structural stability. When accompanied by high moisture levels in your basement, mold could put your property at serious risk.

Common types of basement mold include:


Mold growing on cement block in basement of a home
  • Alternaria
  • Aspergillus
  • Cladosporium
  • Penicillium

What Causes Basement Mold?

Excess moisture is the most likely cause of mold in your basement. However, the following elements can also encourage mold growth in this part of your home:

Everyday household activities, like laundry or cooking, can increase humidity in your home, increasing the chances of mold growth.

Can You Fix Basement Mold?

Yes, but you should adopt a whole-home approach to this problem. Mold removers from the hardware store only provide a quick fix and don’t deal with excess moisture in your basement, meaning this fungus will most likely return.

Professional basement waterproofing solutions, such as dehumidifiers and vapor barriers, remove humidity and dampness in your home to create a safer, drier, and mold-free environment.


How We Fix Basement Mold

Our team follows these steps when eliminating basement mold:

Groundworks tech inspecting basement to identify root cause of issue
  • Inspecting Your Property: Our experts will examine your home to identify the root cause of mold and come up with a custom repair plan.
  • Sealing Cracks and Gaps: We repair cracks in walls and floors and prevent them from returning with the right basement or foundation repair solution.
  • Draining Water: Our advanced internal perimeter drainage systems capture and redirect leaking water in your basement.
  • Installing a Sump Pump: Our heavy-duty sump pumps remove accumulated water.
  • Installing a Vapor Barrier: We stop moisture infiltration through basement walls with a vapor barrier.
  • Controlling Humidity: Our energy-efficient dehumidifiers maintain relative humidity below 55% to prevent mold and improve air quality.

We also offer an annual maintenance plan to ensure your basement remains dry and safe.

Groundwork graphic image explaining merger between Polylevel and Groundworks

Why Address Basement Mold Now?

Ignoring a mold problem might lead to the following issues:

  • Mold can multiply in 24-48 hours when moisture is present.
  • If left untreated, mold could worsen conditions like asthma and allergies.
  • Persistent mold and excess moisture can damage your home’s foundation.
  • Musty smells are hard to eliminate.
  • Mold might lower the value of your home.

Contact Groundworks for Basement Moisture Solutions in Edmonton

Groundworks tech smiles as he hold a level getting ready to get to work

Mold can cause health problems, affect air quality, and even compromise your property’s structural integrity, so we recommend fixing this issue as soon as possible. Our basement waterproofing solutions, such as vapor barriers and sump pumps, treat mold at its source, resulting in a safer home.

Book your free, no-obligation inspection and estimate.


Basement Mold FAQs

The extent of your mold problem and its underlying cause will determine the length of repairs. However, we could remove mold from your basement in as little as a day. We’ll give you a time estimate during our inspection.


Mildew is an early form of mold that’s usually white or light brown. Mold has more of a raised appearance and a distinct musty odor. A professional like Groundworks can differentiate between these fungi and recommend the best removal solution.

Mold consumes wooden beams, certain types of insulation, and other organic matter. Not addressing this problem can put your foundation at risk and lead to more costly repairs.


Do you see any of these signs? Book an appointment now!

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Proudly Serving Southern Alberta and Southern Ontario

Canada trusts Groundworks for reliable crawl space, basement waterproofing and foundation repair services. Contact us for a free inspection!  

Top Cities We Serve


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Excellent service! Really professional, knows his technology, works efficiently. Obviously enjoys his work. Thanks Feiross!

Brian Keating

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Cory came to my house, thoroughly evaluated the situation, explained the options to me, and patiently answered all of my questions. He is amazing. There was a crack in my basement wall that needed to be repaired. Paul (I think) did a good and clean Job. The repair was scheduled and completed exactly as was described to me. Great team! I’d definitely recommend this company to others.

Kavan Motazedi

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An amazing company with outstanding service. Incredibly impressed with both the work and the care. We did full waterproofing and a new sump system and we are thrilled. Sanity is restored after crisis flooding! From the initial consult to the final job the excellency is there. Would tell anyone and everyone to use this company.

Bek MacIntosh

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The service provided was excellent. From the start when we installed the tester to the end when we got the mitigation system installed. The installers came on time, cleaned up, and was super friendly. Definitely will contact them again for our next house!

Mabel Ma

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Excellent service. Sales was pleasant and quote was thorough enough to proceed. The crew that came out to excavate, and install the interior and exterior basement systems was absolutely top notch – their work was neat and tidy, they showed up on time, and worked hard. To top it off, they (and all the folks involved) have to be the most pleasant contractors I’ve ever dealt with – and this is house #5 for us over the years! Thank you, Basement Authority. Highly recommend.

Laura Chutny

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Yesterday we had our sump pump service by Ben and was very pleased with the work. He was knowledgeable and took care in his work. He was very friendly and explained what he was going to do. Very good at his job and we’ll ask for him if we need any work done in the future.

Wayne Bateman

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Fantastic service from start to end. Professional sales call, follow up, and terrific work crew on site. Did an amazing job of raising and leveling my driveway. The crew took great pride and were even excited with the outcome. I HIGHLY recommend their work.

Craig