How to Prevent Mold Growth in Edmonton's Humid Summers
- tidyupscleanings
- May 25
- 5 min read
At Tidyups Cleaning Service Inc, we know that summers in Edmonton can be surprisingly humid. While most people think of Alberta as cold and dry, summer brings a shift — warmer temperatures combined with moisture can create the perfect breeding ground for mold in your home.
This blog will walk you through how to prevent mold growth during Edmonton’s humid summers, why it matters, and what steps you can take right now to keep your home fresh, healthy, and clean.
We’ll cover:✅ Why mold is dangerous✅ Where mold tends to grow✅ Practical prevention tips✅ How professional cleaning helps✅ Answers to common mold-related questions
Let’s dive in!

Why Mold Is a Big Problem in Humid Edmonton Summers
You might wonder: why is mold suddenly a concern in summer? The answer lies in the humidity levels. Edmonton’s average summer humidity often ranges between 60% and 80%. Mold thrives in environments where the relative humidity is above 60%.
Mold spores are microscopic and float in the air. When they land on moist surfaces — like window sills, bathroom tiles, basements, or damp drywall — they start to grow. Left unchecked, mold can:
✅ Damage building materials (like wood and drywall)✅ Cause health problems, especially for those with allergies or asthma✅ Produce a musty odor that’s hard to remove✅ Lower your home’s value and indoor air quality
In short, mold is not just ugly — it’s harmful. Preventing it requires action before you even notice it forming.
Where Does Mold Grow in Your Edmonton Home?
Knowing where to look is key to prevention. Mold tends to thrive in places that are:
Damp or wet
Poorly ventilated
Dark
Here are the most common areas where we at Tidyups Cleaning Service Inc often see mold when we do house cleanings in Edmonton:
✅ Bathrooms — on shower tiles, under sinks, around toilets✅ Basements — on walls, floors, or near foundation leaks✅ Kitchens — under the sink, behind the fridge, near water lines✅ Attics — especially if the roof leaks or ventilation is poor✅ Windows — on sills or frames due to condensation✅ Laundry areas — around washing machines or dryers
Understanding these hot spots helps you target your prevention efforts.
How to Prevent Mold Growth: Practical Tips
Now that you know the risk areas, let’s focus on what you can do.
1️⃣ Control Humidity
This is the most important factor. Aim to keep your home’s relative humidity between 30% and 50%.
✔ Use a dehumidifier in basements and other damp areas.✔ Install ventilation fans in bathrooms and kitchens.✔ Run your air conditioner — it helps reduce indoor moisture.✔ Avoid drying clothes indoors; if you must, ventilate well.✔ Check for window condensation and wipe it regularly.
Pro tip: Use a hygrometer (small digital device) to monitor your indoor humidity levels.
2️⃣ Improve Airflow
Good airflow discourages mold growth.
✔ Keep interior doors open to allow air circulation.✔ Use ceiling fans or portable fans in rooms that feel stuffy.✔ Avoid overcrowding furniture against walls; leave some space for air to move.
By improving ventilation, you lower moisture buildup.
3️⃣ Fix Leaks Promptly
Water leaks provide a constant moisture source.
✔ Inspect roof, windows, and basement regularly.✔ Repair plumbing leaks under sinks or in walls.✔ Check around appliances like washing machines, dishwashers, and water heaters.
Don’t wait — even a small drip can create a mold-friendly environment over time.
4️⃣ Clean and Dry Wet Areas
Mold only needs 24–48 hours to start growing on wet surfaces.
✔ After heavy rains, check your basement for puddles.✔ Wipe down wet countertops, showers, and sinks.✔ After spills on carpets or rugs, dry the area quickly.
By staying vigilant, you cut off mold’s fuel source.
5️⃣ Use Mold-Resistant Products
If you’re renovating or building, consider using mold-resistant drywall or paint, especially in bathrooms, kitchens, or basements.
These materials are designed to resist water absorption, making them less likely to support mold growth.
6️⃣ Regular Professional Cleaning
Here’s where Tidyups Cleaning Service Inc can help. Our house cleaning team in Edmonton offers:
✔ Deep cleaning that targets hidden moisture zones✔ Regular maintenance cleanings to keep high-risk areas dry and spotless✔ Customized services tailored to your home’s specific needs
By working with professional cleaners, you can ensure hard-to-reach spots (like behind appliances or inside cabinets) are regularly cleaned and inspected.
Why Mold Prevention Matters for Your Health
It’s not just about appearance. Mold exposure can trigger:
Allergies (sneezing, coughing, itchy eyes)
Asthma attacks
Headaches
Fatigue
Respiratory infections
Children, seniors, and those with compromised immune systems are especially vulnerable.
That’s why mold prevention is ultimately about protecting your family’s health.
What If You Already Have Mold?
If you spot small patches of mold (less than 1 square meter), you can try:
✔ Cleaning with white vinegar or hydrogen peroxide✔ Scrubbing affected areas with a brush✔ Drying thoroughly afterward
However, larger infestations (or if mold keeps returning) may require:
Professional mold remediation
Repairing structural issues (like leaky roofs or cracked foundations)
Never ignore persistent mold — it will only get worse over time.
Seasonal Maintenance Checklist
To make things easier, here’s a summer mold prevention checklist you can follow:
✅ Check and clean air conditioner filters✅ Run dehumidifiers in damp rooms✅ Inspect window seals and wipe condensation✅ Clean bathroom exhaust fans✅ Check for plumbing leaks✅ Deep clean basement and attic✅ Wash or replace moldy shower curtains✅ Schedule a professional house cleaning
By staying proactive, you can enjoy Edmonton’s summer without worrying about mold.
FAQs: Mold Prevention in Edmonton
1️⃣ Why does Edmonton get humid in summer?
Though Alberta has a dry reputation, summer brings rain, thunderstorms, and warm air — all of which increase moisture and humidity levels indoors.
2️⃣ What humidity level is too high indoors?
Anything above 60% creates a mold-friendly environment. Ideally, keep it between 30–50%.
3️⃣ Can air purifiers help prevent mold?
Air purifiers with HEPA filters can help capture mold spores in the air, but they don’t stop mold from growing on surfaces. You still need to control moisture.
4️⃣ How do I know if I have a mold problem?
Look for signs like musty odors, visible black or green patches, or unexplained allergies and respiratory issues.
5️⃣ When should I call a professional?
If mold covers more than 1 square meter, keeps coming back, or is causing health issues, it’s time to call a professional cleaning or remediation service.
Final Thoughts
At Tidyups Cleaning Service Inc, we believe that a clean, healthy home is the foundation of a happy life. Edmonton’s humid summers can sneak up on homeowners, but with the right prevention strategies, you can keep mold at bay.
✅ Control humidity✅ Improve ventilation✅ Fix leaks promptly✅ Clean regularly✅ Use professional help when needed
If you’re looking for expert house cleaning services in Edmonton to support your mold prevention efforts, reach out to us. Our friendly, trained team is here to help keep your home fresh, clean, and safe all summer long.
About Tidyups Cleaning Service Inc
We’re Edmonton’s trusted house cleaning service, offering deep cleans, regular maintenance, and customized cleaning solutions. Whether you need a summer refresh or ongoing help, we’ve got you covered — so you can spend less time worrying about mold and more time enjoying life.
👉 Contact us today for a free quote!
Contact Us for Your House Cleaning in Edmonton
Company Name: Tidyups Cleaning Service Inc
Address: 8306 Chappelle Way SW, Edmonton, AB T6W 4L3
Phone: +1 587–900–7223
Visit our website: Click here
Find Us On Map: View On Google Map
More Details: Click Now
Comments