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Why Does My Finished Basement Smell Musty?

Finished Basement With Musty Odour Toronto

Even a finished basement can contain high pollution levels and since these pollutants rise due to their buoyancy they can often invade the living space on the upper floors. Basements often have a bit of a musty smell to them and this is because certain types of wallboard and carpeting absorb moisture through the home’s foundation via a process known as capillary action.

This results in excess humidity and moisture which can be absorbed by the insulation. In some instances, excess moisture can lead to visible or invisible mold in the basement.

If a basement suffers water damage it can result in mold which releases pollutants into the air and can keep growing even after the room has dried. This, in turn, will result in a musty smell, especially if the basement has poor ventilation. Unfinished basements also become musty since they usually contain a certain amount of dirt, dust, and debris which can encourage the growth of mold and bacteria. To make matters worse, invisible particulate matter or debris in the air can damage your lungs and enter your bloodstream and are certainly unhealthy.

Other pollutant causes of a musty basement could include things such as fiberglass insulation, dank crawl spaces, Radon gas, and volatile organic compounds such as fertilizer bags and paint cans. If you notice a musty odour from the basement it’s recommended you have the air tested by a professional or specialist. Professionals can identify the cause of the moisture and smell and come up with a solution to eliminate it, resulting in a healthier and fresher smelling basement.

The aim is to eliminate the moisture from the basement and increase its airflow. If your basement is unfinished with a dirt floor the floor should be covered with a plastic sheet and wire mesh before covering it with a thin layer of concrete. If the basement has a concrete floor you may need a waterproofing solution if water or moisture is seeping into it. If the basement is filled with mold you may need to have it removed by a professional mold removal company.

If mold is left to grow it could eat through basement insulation, wood framing and other structures and materials. A good ventilation system is also needed as it removes the musty air and replaces it with fresh air. You may need to install an exhaust fan along with a dehumidifier/air purifier and open any windows to increase airflow. If you hire a professional to find and eliminate the source of your musty basement there are a few steps you can take to keep the area as fresh as possible once the job has been completed.

Make sure your downspouts and gutters aren’t clogged as water that pools around your home can start to smell unpleasant. You might also want to send the water further away from your home by installing extensions on the downspouts. This will help keep water from seeping into your basement from the ground near the house. You can also keep the basement air fresh by cleaning it out and throwing away all unneeded items which could absorb moisture, mold and mildew. If the basement is unfinished you can then clean the surfaces with soap and water as well as bleach, white vinegar, or hydrogen peroxide.

Some unpleasant odours can be absorbed by items such as baking soda, white vinegar, zeolite, charcoal bricks, and cat litter. If you place one or a combination of these items in the basement the air should stay fresher. Just be sure to replace them every two or three months. Another option is to place an ionizer downstairs. These devices are designed to remove bad odours by releasing ions in the air.  If you plan on hiring a contractor to finish your basement, then you must ensure the damp issues are cleared up before installing your drywall and flooring.

But in the long run, it’s going to be difficult to rid your basement of a musty odour if you don’t find the source of it and have it rectified. If you’re having a hard time locating the reason for your moist or wet basement please don’t hesitate to contact us at Nusite Waterproofing. Our team of professional basement waterproofers will be able to find the cause of the problem and also provide you with the best solution for it.

 

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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.