How to Get Rid of Dampness and Mold on Your Walls for Good
Most of us have encountered damp patches or mold creeping across the walls of our homes at some point. It’s easy to ignore when it’s isolated to one area — but don’t be fooled. Every case of moisture damage is different, and what seems minor now could become a serious structural or health issue later.
While a quick coat of paint might temporarily cover the problem, untreated moisture will always find its way back. Over time, it can damage your home’s structure, trigger allergies, and invite even more mold growth.
Below are some effective home remedies and tips to help fight mold and dampness — plus when it’s time to call in a professional.
1. Talcum Powder for Surface Moisture
It might sound surprising, but talcum powder can help absorb light surface moisture — just like it works for sweaty shoes.
How to use:
- Sprinkle talcum powder over the affected wall area.
- Gently massage it in using a dry cloth.
- Repeat the process several times for better results.
Note: This method works best for minor or early-stage dampness, not for severe moisture issues.
2. Bleach for Mold Removal
Bleach is a powerful mold killer — but it doesn’t remove the moisture source, so mold may return if deeper problems aren’t addressed.
How to use:
- Mix equal parts bleach and water in a spray bottle.
- Wear gloves, a mask, and safety glasses.
- Spray the affected area, then scrub with a stiff brush.
- Allow the area to dry completely.
Do this slowly over several days to avoid overwhelming fumes. Make sure the room is well-ventilated.
3. Vinegar + Alcohol + Warm Water (Gentler Alternative)
This mix is great if you’re worried about harsh chemicals or bleach staining your walls.
How to use:
- Mix 1 cup of vinegar, 1 cup of alcohol, and 2 cups of warm water.
- Pour the solution into a spray bottle.
- Spray directly onto the mold, let it sit, and wipe clean.
This solution is effective at killing mold spores and won’t discolor your wall paint.
4. Fix the Structural Cause
If moisture keeps returning no matter how often you clean, it’s time to look at the structure of your home.
Why consult a professional:
- A moisture specialist can assess your walls and pinpoint the source — whether it’s rising damp from the ground, poor ventilation, or leaking pipes.
- In severe cases, you may need to remove and rebuild the first meter of the affected wall and add a waterproof membrane to prevent future seepage.
Tip: You don’t need to redo the entire wall — just the bottom section where moisture tends to rise.
5. Natural Moisture Absorbers
Want to control humidity naturally in less severe cases? Try these:
✅ Sea Salt
- Place bowls or containers of coarse sea salt near damp areas or on shelves.
- Salt naturally draws moisture from the air and helps prevent mold growth.
✅ Baking Soda
- Similar to sea salt, baking soda works well in small containers placed around affected areas.
- It also helps neutralize odors and absorb excess moisture.
6. Tea Tree Oil Spray
Tea tree oil is a natural antifungal that works well on mold.
How to use:
- Mix 2 tablespoons of tea tree oil with 2 cups of water in a spray bottle.
- Shake well, spray directly onto moldy surfaces, and leave it to air dry — no need to rinse.
- Repeat every few days until the mold is gone.
When to Call in a Professional
- You notice persistent or worsening dampness
- Mold keeps returning even after cleaning
- The affected area is larger than 1 square meter
…it’s time to consult a structural expert or moisture specialist. They can assess for rising damp, hidden leaks, or inadequate waterproofing.
Final Tips for Preventing Moisture
- Keep rooms well-ventilated, especially bathrooms and kitchens.
- Use a dehumidifier in high-humidity areas.
- Fix leaks quickly — whether from pipes, windows, or the roof.
- Invest in quality insulation and waterproofing during renovations.
By taking action early and understanding the root causes, you can keep your walls dry, healthy, and mold-free for good.