Luxury Home for Sale

 Tuesday, May 26, 2020     Laurence Mongeau     House and Home

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How to Remove Mould From Your Home

In this blog post, we explain how to identify, remove, and prevent mould in your home, which can impact indoor air quality and health. Learn how to safely clean small mould areas and when to call a professional for larger issues. Prevent mould growth by fixing water leaks, improving ventilation, reducing humidity, and keeping your home clean.

Whether you like it or not, you probably have mould quietly lurking in your home. When it finds a damp place to grow, it can contribute to poor indoor air quality and health problems.

To eliminate mould, clean affected areas that are less than the size of a standard large garbage bag folded in half (1 square metre). Put on protective wear including a long-sleeved shirt, appropriate and properly fitted dust mask, safety glasses or goggles and rubber gloves. These items are generally available in local stores.

Prepare a bucket with water and a bit of dish detergent (preferably unscented) and another with clean water. If you’re cleaning drywall, you can use baking soda instead of dish detergent. Use this solution to clean the surface.

Prevent Mould from Growing in Your Home 

Follow these simple steps:

  1. Look for damp spots. Check basements, closets, windowsills, roofs and around sinks, tubs and pipes.
  2. Fix damp spots right away. Repair any water leaks as soon as you notice them. Clean up immediately after any flood.
  3. Keep your home well ventilated. Open windows in dry weather or use fans as needed and turn on your kitchen and bathroom exhaust fans when cooking or showering. Let the fan run for a few minutes after you’re done. Make sure your clothes dryer, stove, kitchen and bathroom fans all vent to the outdoors.
  4. Seal tubs and sinks. Make sure the seal is tight, so water doesn't leak into the walls.
  5. Throw out basement clutter. Cardboard boxes and old clothes are great places for mold to grow.
  6. Reduce humidity. Keep humidity low, about 50 per cent in summer and 30 per cent in colder weather. If needed, use a dehumidifier or air conditioner to reduce humidity levels. You can use a hygrometer – an inexpensive tool available at most hardware stores – to measure humidity.
  7. Clean often. Regularly clean and disinfect anything that holds water, like humidifiers, dehumidifiers and air conditioners.

If you have a lot of mould, (greater than 1 square metre), if it comes back after repeated cleanings or a family member suffers from asthma or other respiratory problems as a result of mould, consider hiring a professional to clean it up. Remember, a large amount of mould is often the result of a bigger problem, like a leak in the foundation or a major flood, which you may need a professional to help fix. Find more information about this topic at canada.ca/healthy-home. (NC)

Contact Laurence Mongeau

Looking to buy or sell luxury homes in Burlington, Oakville, Hamilton, Milton, Ancaster, Stoney Creek, Waterdown, or Grimsby? Contact Laurence Mongeau, your trusted REALTOR® with over 20 years of experience, for expert advice on listing your home and strategic real estate solutions. Call 905-320-0773 or email homes@laurencemongeau.ca today!


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Sarah Moote
  February 27, 2025

We had the absolute pleasure of working with Laurence as part of our real estate dream team with both the sale of our house and purchase of our new home. Laurence was absolutely incredible every step of the way—she helped stage our house, designed beautiful marketing materials, hosted open houses every weekend, attended home inspections, collected water samples, and was a master in negotiation… the list goes on of all the wonderful things she did for our family. She gave great advice, was there for us every step of the way, and was always available. Laurence is truly one of the most lovely, hard working and genuine people we have had the pleasure of knowing. She was positive when there were bumps in the road, supportive, and had our best interest at heart. Our 3 year old still asks when she will get to see Laurence next. She truly became part of our family, and we are so grateful to have met and worked with her.

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Wendy Burtch
  February 10, 2025

Laurence’s experience of the real-estate market made our purchase of our beautiful new home a wonderful and smooth transaction. She took the time to explain the entire process and gave professional advice. We highly recommend Laurence to help you find your dream home.

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Leslie Quinsay
  July 12, 2024

Laurence is wonderful to work with and always goes above and beyond! She has helped us in both the buying and selling processes multiple times. Highly recommend.

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Gail Alteen
  May 28, 2024

Just want to say thank you for your hard work and dedication in getting my home sold. You were very organized, professional and honest. It was a pleasure to work with you.

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