How to Clean Vertical Blinds

Cleaning Vertical Blinds Expert Tips

Table of contents:

1. PVC vs Fabric: Why the Material Matters
2. Can You Remove the Headrail? Why It Matters
3. What You'll Need to Clean Vertical Blinds
4. How to Clean Vertical Blinds: Quick Dust
5. How to Deep Clean Vertical Blind Slats
6. How to Bath-Soak Vertical Blinds
7. How to Remove Stains from Vertical Blinds
8. How to Remove Mould from Vertical Blinds
9. When to Call a Professional Blind Cleaner
10. FAQs: Cleaning Vertical Blinds

PVC vs Fabric: Why the Material Matters

Vertical blinds are made from two very different materials, and that single fact should shape almost every decision you make about cleaning them.

A method that's perfectly safe on one can warp, fade, or shrink the other, so it's worth establishing which you have before you pick up a cloth.

PVC vertical blinds

These have a smooth, sealed plastic surface that repels moisture and is resistant to grease and stains. Marks sit on the surface rather than soaking in, making them genuinely easy to clean.

They're the standard choice for kitchens, bathrooms, and any high-moisture environment. PVC can be wiped directly with a damp cloth and mild detergent with no risk of damage from moisture.

Fabric vertical blinds

Vertical blinds are more absorbent and more delicate. They stain more easily, can shrink or warp if exposed to excessive moisture or heat, and their surface coating (which often gives them their colour or texture) can be stripped by harsh chemicals.

Most fabric slats are also treated with a fire-retardant additive - prolonged soaking can strip this coating along with the dirt, which is one reason fabric blinds need a more cautious approach than PVC. Fabric slats require a gentler approach and significantly less water than PVC.

If you're unsure which material your blinds are, check the packaging or installation paperwork if you still have it. Alternatively, feel the slat, PVC is stiff and smooth; fabric is softer and has a slight texture. You can also check with the manufacturer's name (usually on a label in the headrail) to confirm.

Can You Remove the Headrail? Why It Matters

Before deciding how to clean your blinds, it's worth checking whether the headrail itself can be removed from its wall or ceiling bracket, not just whether the individual slats unclip. This determines which methods are realistically available to you.

On most vertical blind systems, the headrail releases from its mounting bracket with a firm push, unhook, or unclip at the bracket tabs on either end. If yours comes away easily, you can take the entire assembly, headrail and slats together, to a worktop or bath for cleaning, which gives you much more control than working at height by the window.

If the headrail is fixed permanently in place (built into a recess, or simply seized after years without being moved), you're limited to unclipping individual slats while the headrail stays put, or cleaning everything in situ without removing anything at all. Trying to force a stuck headrail risks cracking the bracket or damaging the wall fixing.

Check this before committing to a method - it's the difference between a full bath-soak clean and a slat-by-slat wipe-down, and it's worth knowing in advance rather than discovering halfway through the job.

What You'll Need to Clean Vertical Blinds

Most of what you need for cleaning vertical blinds is already in the cupboard under the sink, and the rest is inexpensive. What matters more than the shopping list is knowing which items pair with which material - the wrong product on the wrong slat is how blinds get damaged.

Getting everything together before you start also makes the job considerably quicker, particularly for a deep clean where you're removing slats.

For dusting:

• Vacuum with a soft upholstery brush attachment
• Microfibre duster or soft cloth

For deep cleaning:

• Microfibre cloths - several
• Two bowls or buckets (one for cleaning solution, one for clean rinse water)
• Mild washing-up liquid
• Lukewarm water - not hot; hot water can warp PVC and damage fabric coatings
• A clean flat surface (dining table works well) for laying slats during cleaning
• Clean towels for drying

For stain removal:

• White vinegar (diluted 1:3 with water) - for grease and general stains on PVC
• Mild fabric detergent - for stubborn marks on fabric slats
• Lemon juice and salt - for mould on fabric

What to avoid:

• Bleach - fades colours and weakens both fabric and PVC over time
• Abrasive sponges or brushes - scratch PVC and fray fabric
• Hot water - warps PVC slats and can melt the adhesive holding weights in the bottom hem of fabric blinds
• Tumble dryers - destroys both materials

How to Clean Vertical Blinds: Quick Dust

Most vertical blinds don't need a deep clean nearly as often as people assume, a quick dust on a regular basis keeps dirt from building up to the point where a more intensive clean becomes necessary. This is the method for lightly dusty blinds with no stains, and the slats can stay exactly where they are.

Step 1: Close the Blinds

Align all the slats flat, facing the same direction, so the entire surface is exposed and easy to work along.

Step 2: Vacuum from Top to Bottom

Using a vacuum with the soft upholstery brush attachment, work down each slat in a single stroke. Keep suction on a low-to-medium setting, high suction can pull slats off their hooks or leave creases in fabric.

Step 3: Rotate and Repeat

Turn the slats 180 degrees so the other side faces you, then vacuum each one again the same way.

Step 4: Finish with a Duster if Needed

A microfibre duster works as an alternative or a final pass, though vacuuming captures more dust rather than just redistributing it. Avoid the standard floor brush attachment, it transfers dirt back onto the blind rather than lifting it away.

Regular dusting every few weeks prevents build-up that requires a more intensive clean, and takes under ten minutes for a standard window.

If dusting alone isn't shifting the dirt and you'd rather not tackle a deep clean yourself, a cleaner near you can take care of it as part of a routine visit.

How to Deep Clean Vertical Blind Slats

There comes a point where dusting alone stops making a visible difference, grime works its way into the surface and a quick wipe just moves it around rather than lifting it off.

When blinds reach that stage, or simply haven't been cleaned in a long time, removing the slats and cleaning them flat gives a far better result than trying to manage the job at the window.

• Step 1: Dust first Before removing the slats, vacuum or dust them while they're still hanging. This removes loose dust and means you're not spreading it during the wet clean.

• Step 2: Remove the bottom chains and weights Unclip the bottom chain from each slat, then slide out the weights from the bottom hem if they're removable (most fabric blinds have removable weights; PVC typically doesn't).

• Step 3: Unhook the slats Hold each slat at the top, tilt it to 45 degrees, and pull the clip out of its hook. Lay each slat flat on your clean surface as you go.

• Step 4: Clean the headrail While the slats are down, clean the headrail with a damp cloth and mild detergent (see the headrail section below for detail).

For PVC slats:

Dampen a microfibre cloth with lukewarm water and a small amount of washing-up liquid. Wipe each slat from top to bottom on one side, then flip and repeat. Rinse with a clean damp cloth to remove any soap residue, then dry immediately with a clean towel. Don't leave PVC slats wet - although they're water-resistant, prolonged moisture can leave watermarks.

For fabric slats:

Use a microfibre cloth that is barely damp, wring it thoroughly until only trace moisture remains. Wipe each slat gently from top to bottom using light strokes, not circular scrubbing. Stubborn marks can be dabbed (not rubbed) with a cloth dampened with a mild fabric detergent solution.

Rinse with a clean barely-damp cloth, then lay the slats flat to air dry completely before rehooking. Never hang fabric slats back up while still damp, they'll dry unevenly and may warp.

Note: Some fabric vertical blind manufacturers confirm their products are machine washable. If the care label or manufacturer's documentation states this, roll the slats loosely, place them in a pillowcase or mesh laundry bag, and wash on a delicate cycle at no more than 30°C. Never tumble dry.

Find a blind cleaner near you

How to Bath-Soak Vertical Blinds

If your headrail can be removed and your slats are heavily soiled, kitchen grease, years of dust, or general grime that a wipe-down won't shift, soaking them in the bath gives a more thorough result than wiping alone.

This method works well for PVC and is sometimes suitable for fabric, but the rules differ.

• Step 1: Remove the headrail and unclip the slats, following the steps in the deep clean section above.

• Step 2: Fill the bath with lukewarm water - never hot. Heat is the main risk with this method: hot water warps PVC and can soften the glue holding the weights inside the bottom hem of fabric slats. Add a small amount of mild washing-up liquid or laundry detergent for extra cleaning power.

• Step 3: Submerge the slats and leave to soak for around 20-30 minutes. This is long enough to loosen embedded grime without causing damage. Don't be tempted to leave them longer, extended soaking is the main cause of problems with this method. On fabric slats in particular, prolonged soaking risks stripping the fire-retardant additive along with the dirt, and can cause shrinkage.

• Step 4: Gently wipe each slat with a soft sponge or microfibre cloth using light circular motions, working through the water rather than scrubbing against the surface.

• Step 5: Drain the bath and rinse each slat under clean running water to remove all soap residue.

• Step 6: Dry flat - never hung up. Lay the slats on clean towels spread across a flat surface, such as a spare bed or the floor. Hanging wet slats to dry, particularly fabric ones, causes them to stretch under their own weight as they dry, a problem that doesn't reverse itself once it's happened.

A note on PVC and fabric inserts: Some vinyl slats have a fabric panel inserted into a front channel rather than being fully fabric. Treat these as fabric for soaking purposes.

How to Remove Stains from Vertical Blinds

A spilt drink, a splash of cooking oil, or a child's marker pen doesn't have to mean a permanently marked blind - but how you treat it, and how quickly, makes a real difference.

Stains are best dealt with promptly, since the longer they're left, the more they set into the material and the harder they become to shift. The right approach also depends entirely on whether you're dealing with PVC or fabric.

Cleaning Stains on PVC blinds:

Most stains on PVC come off with a damp cloth and mild washing-up liquid. For greasy marks (common in kitchen blinds), a solution of white vinegar and water (1 part vinegar to 3 parts water) applied with a damp cloth cuts through grease effectively. Wipe in the direction of the slat, not across it, to avoid pushing the stain further in.

Cleaning Stains on Fabric Blinds

Dab the stained area with a cloth dampened with lukewarm water, don't rub, which pushes the stain deeper into the fibres. If water alone doesn't lift it, use a small amount of mild fabric detergent on the cloth.

Individual slat replacement is worth considering for fabric blinds with permanent stains. Replacing one or two slats is usually inexpensive and far less effort than repeated cleaning attempts on a stain that won't shift. If the damage is widespread enough that full replacement makes more sense, see the MyBuilder window blinds installation cost guide for current pricing.

How to Remove Mould from Vertical Blinds

Mould on vertical blinds isn't just unsightly. It's a sign that moisture is settling somewhere it shouldn't, and left unaddressed it spreads. It's most common in bathrooms, kitchens, and any room with poor ventilation or persistent condensation, typically showing up as small dark spots near the bottom of the slat where moisture collects and lingers longest.

For PVC blinds:

Wipe the affected area with a cloth dampened with a solution of one part white vinegar to one part water. Leave for a few minutes to allow the vinegar to work, then wipe clean. PVC's sealed surface means mould rarely penetrates deeply, so this is usually sufficient.

For fabric blinds:

Use a stiff brush to gently remove any dry mould spores, brushing in one direction. Apply a solution of lemon juice and salt to the affected area, leave for a few minutes, then wipe with a clean damp cloth. If staining remains, mild fabric detergent applied to the spot and left briefly before rinsing is the next step.

For more on preventing mould in blinds long-term, see our guide to cleaning vertical blinds, or our guide to getting rid of condensation if the underlying problem is the room itself.

When to Call a Professional Blind Cleaner

For routine cleaning, most vertical blinds are manageable at home. There are situations where a professional blind cleaner near you is the better option.

See the MyBuilder blind cleaning cost guide for typical pricing.

All tradespeople on MyBuilder undergo checks at registration, such as ID documents, company details, certifications for regulated jobs and skill assessments, allowing you to hire with confidence.

Find a blind cleaner near you

FAQs: Cleaning Vertical Blinds

How Often Should You Clean Vertical Blinds?

A light dusting every few weeks keeps them in good condition and takes only a few minutes. A full deep clean, removing slats and cleaning flat, once or twice a year is sufficient for most locations. Kitchen and bathroom blinds, where grease and moisture are ongoing issues, benefit from more frequent wipe-downs. You can browse photos of professional blind cleaning results on MyBuilder to see what a thorough clean can achieve.

Can You Put Vertical Blinds in the Washing Machine?

Only if the manufacturer's care label or documentation explicitly confirms they are machine washable, most are not. If machine washing is permitted, use a delicate cycle at 30°C maximum, place the slats inside a pillowcase or mesh bag to prevent damage, and air dry flat. Never tumble dry. When in doubt, hand clean rather than risk shrinkage or warping.

Why Do My Vertical Blinds Look Streaky After Cleaning?

Streaking is almost always caused by too much detergent left on the surface, or wiping with a cloth that's too wet. Use a barely damp cloth, use washing-up liquid sparingly, and always follow up with a clean damp cloth to rinse and then a dry cloth to finish. Letting slats air dry while hanging can also cause streaking where moisture runs down and pools.

How Do You Stop Vertical Blinds Getting Mouldy?

Mould on vertical blinds is caused by condensation settling on the fabric or PVC. Ventilate rooms properly - open windows, use extractor fans in bathrooms and kitchens, and avoid leaving blinds fully closed in humid conditions for extended periods. Keeping blinds slightly open when a room is empty allows air to circulate around the slats. Replacing fabric blinds in persistently damp rooms with PVC versions removes the problem at source, since PVC doesn't support mould growth in the way fabric does.