Quick answer: Identify what your blinds are made of first, since this determines the safest method. Wooden blinds should only be dry dusted or wiped with a barely damp cloth. Faux wood, PVC, and aluminium blinds can be wiped with soapy water or even soaked in the bath for a deeper clean. Always dry both sides thoroughly afterwards and let them air dry fully open to avoid mould developing in the folds.
Venetian blinds do a brilliant job controlling light and privacy, but their horizontal slats are also brilliant at collecting dust, which settles into every groove and edge. The right cleaning approach depends almost entirely on what material your blinds are made from, since the wrong method on the wrong material can genuinely ruin them.
Identify Your Blind Material First
Look closely at a slat and check the following before choosing a method.
- Real wood: lighter in weight and shows natural wood grain, especially when damp.
- Faux wood: heavier than real wood, with an identical “wood” texture repeated on every single slat.
- PVC or plastic: lightweight and slightly flexible, common in budget and supermarket blinds.
- Aluminium: thin, light, and cool to the touch, and can dent if handled roughly. Very common in UK rentals.
Quick Clean: Dusting While They Hang
This routine dust works for all blind types and should be your regular weekly habit.
- Close the slats fully so they overlap.
- Wipe or dust from top to bottom using a feather duster, dry cloth, or a vacuum’s soft brush attachment, working in the same direction as the slat alignment.
- Flip the slats to the opposite position and repeat on the other side.
A three-pronged blind duster, designed to grip several slats at once, speeds this job up considerably if you clean blinds regularly.
Cleaning Wooden Blinds
Real wood should never be soaked or heavily wetted, since moisture can warp, swell, or discolour the timber.
- Dust regularly with a feather duster or anti-static cloth as your main method.
- For grime beyond simple dust, dampen a cloth very lightly with warm water and a tiny amount of mild detergent, wring it out almost completely, and wipe gently.
- Dry immediately with a separate dry cloth, since any lingering moisture risks warping the wood.
- Once a year, apply a small amount of furniture polish or beeswax to a cloth, not directly to the slats, and buff in to restore the finish.
Cleaning Faux Wood, PVC, and Aluminium Blinds
These materials are considerably more water-resistant and can handle a proper deep clean.
- For a quick clean, wipe with a damp microfibre cloth and mild soapy water, then dry.
- For a deeper clean, take the blinds down carefully and soak them in a bath filled with warm water and a splash of washing-up liquid for ten to fifteen minutes.
- Scrub lightly with a sponge or soft brush, focusing on grimy areas.
- Rinse thoroughly, then lay flat on towels or hang to air dry.
For kitchen blinds with grease build-up, add a teaspoon of washing-up liquid to a small amount of warm water rather than diluting too heavily, and expect to repeat the wipe on stubborn slats, since one pass usually isn’t enough to cut through cooking grease.
Cleaning Metal Venetian Blinds Safely
Aluminium blinds are durable but can be discoloured or stripped by certain chemicals, so always spot test an inconspicuous slat first before using any cleaning agent. A very diluted eco-friendly cleaner tends to work well on metal finishes without causing damage. Dry the louvres carefully with a paper towel afterwards, since leftover moisture can lead to rust spots or watermarking over time.
Fixing Common Blind Problems
Rust Spots on Metal Blinds
Use a gentle rust remover specifically designed for delicate metal finishes, and always test on a hidden slat first.
Yellowing Plastic Blinds
Make a paste with bicarbonate of soda and lemon juice, apply it to the yellowed areas, wait fifteen minutes, then rinse and dry. Avoid this method on coloured blinds, since it can cause fading.
Slats Bent Out of Shape
Gently bend individual slats back into position by hand, or use a slat-straightening tool for a more precise fix if you have several affected at once.
Dirty Cords
Wipe the cords with a damp cloth and a small amount of soap, sliding along their length gently rather than scrubbing, since fraying weakens them over time.
Preventing Mould and Mildew
After any wet clean, this final step matters more than people expect. Once your blinds are dry to the touch, open them to their full capacity and let them air dry completely before closing them again. Closing damp blinds traps moisture between the overlapping slats, creating exactly the conditions mould and mildew need to take hold, often unnoticed until you next adjust the blind fully.
Ongoing Maintenance
- Dust weekly to stop grime building up between deeper cleans.
- Rub a used tumble dryer sheet over plastic or metal slats occasionally, which helps repel dust and keeps them cleaner for longer between cleans.
- Adjust and open your blinds regularly rather than leaving them in the same position for weeks, since stationary blinds tend to collect noticeably more dust.
Related Guides
Frequently Asked Questions
Can you get wooden Venetian blinds wet?
Only very slightly. A barely damp cloth is fine for occasional grime, but soaking or heavily wetting real wood risks warping, swelling, or discolouring the slats permanently.
Why have my plastic blinds turned yellow?
Yellowing on plastic or PVC blinds usually comes from age and sun exposure. A bicarbonate of soda and lemon juice paste, left for fifteen minutes then rinsed off, can help restore some brightness on white blinds.
How do I clean the cords on Venetian blinds?
Wipe them with a damp cloth and a small amount of soap, sliding gently along the length rather than scrubbing hard, since excessive force can fray or weaken the cord over time.
Can I put Venetian blinds in the bath to clean them?
Yes, but only for faux wood, PVC, or aluminium blinds. Real wood should never be soaked, since prolonged water exposure can permanently warp or damage the timber.
Final Thoughts
The single most important step in cleaning Venetian blinds is correctly identifying what they’re made of before you reach for water or cleaning products. Real wood needs a gentle, mostly dry approach, while faux wood, PVC, and aluminium can handle a proper soak. Whatever the material, always finish with a full, open-position dry to keep mould from settling into the folds.