A mouldy sofa doesn’t just look bad — it can pose serious health risks. Mould thrives in damp, dark environments and can easily take hold in fabric sofas after water damage, high humidity, or poor ventilation. If you’ve spotted unsightly mould patches or a musty odour coming from your couch, don’t worry. This guide will walk you through safe and effective ways to remove mould from your fabric sofa and prevent it from coming back.
What Causes Mould to Grow on Fabric Sofas?
Before learning how to get mould out of fabric sofa, it’s essential to understand what leads to mould growth in the first place. Common causes include high humidity, poor ventilation, water spills that aren’t properly cleaned, and flood damage. When moisture lingers in the upholstery, it creates the perfect environment for mould spores to thrive and spread. Before tackling mould, it’s important to understand what causes it:
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High humidity or condensation
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Spilled liquids were not properly cleaned
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Poor ventilation
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Flooding or water leaks
Once moisture settles into the upholstery, it creates the perfect breeding ground for mould spores.
How to Identify Mould on a Fabric Sofa?
Signs your sofa may have mould include:
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Visible black, green, or grey patches
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Musty or earthy smell
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Discolouration or damp spots
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Increased allergy or respiratory symptoms when sitting on or near the couch
Step-by-Step Guide: How to Remove Mould from a Fabric Sofa
1. Wear Protective Gear
Mould spores can be harmful if inhaled. Before starting, wear:
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Gloves
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A face mask (preferably N95)
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Eye protection
2. Take the Sofa Outside (If Possible)
Bringing the sofa outside ensures better ventilation and prevents spores from spreading indoors. If moving it isn’t practical, open all windows and use fans.
3. Vacuum Thoroughly
Use a vacuum cleaner with a HEPA filter to remove loose mould spores. Make sure to cover all cushions, crevices, and under the couch. Dispose of the vacuum bag or clean the canister right away.
4. Spot Treat with Vinegar Solution
Mix equal parts white vinegar and water in a spray bottle. Lightly spray the affected areas — don’t soak the fabric, as excess moisture can worsen mould.
Let it sit for at least 30–60 minutes to kill the spores.
5. Scrub Gently
Use a soft-bristle brush or clean cloth to scrub the treated area. Be gentle to avoid damaging the fabric.
6. Rinse and Blot
Dampen a clean cloth with plain water and blot the area to remove any remaining vinegar. Use dry towels to absorb as much moisture as possible.
7. Let It Dry Completely
Air dry the sofa in sunlight if possible — UV rays help kill mould. Otherwise, use fans or a dehumidifier to ensure the couch dries completely.
Natural Alternatives to Vinegar
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Baking Soda: Sprinkle, let sit, then vacuum.
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Tea Tree Oil Solution: Mix 1 tsp with 1 cup water and spray sparingly.
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Hydrogen Peroxide (3%): Effective but can bleach fabric — test in a hidden spot first.
When to Call a Professional
If the mould covers a large area, has penetrated deep into cushions, or keeps returning despite your efforts, it’s time to call a professional upholstery cleaner. They have the tools and expertise to safely remove mould and restore your couch.
How to Prevent Mould from Returning
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Use a dehumidifier to control moisture indoors.
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Keep your sofa away from walls and windows to allow airflow.
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Clean spills immediately and thoroughly.
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Vacuum regularly to prevent dust and dirt buildup.
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Consider fabric protection sprays with anti-microbial properties.
Conclusion
Mould on a fabric sofa isn’t just an eyesore — it’s a health concern. With the right tools and techniques, you can tackle the problem head-on and enjoy a fresh, clean, and safe seating area again. Whether you DIY or hire a pro, early action is the key to keeping your couch mould-free.