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White venetian blinds on bathroom windows above a vanity and shower, Santorini Lodge, Mozambique

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How to Clean Blinds

Clean blinds change a room. Light comes through clearly, dust stops circulating, and the house feels like install day. Ten minutes.

Home care guideNationwide delivery
Subject
Cleaning blinds
Reviewed by
The Custom Blinds Shutters & Awnings team
Updated
5 September 2026
Reading time
5 minutes

How do you clean blinds properly?

  1. Dust weekly with a dry microfibre cloth, top to bottom, blind fully extended
  2. Monthly, wipe with a cloth wrung almost dry in warm water with a few drops of mild dish soap
  3. Never roll a blind up wet: trapped moisture grows mould inside the roll within days
  4. Aluminium and PVC venetians can be soaked in a bath of warm soapy water; wood and bamboo never
  5. Shutters: clean the groove behind every louvre, and leave the blades slightly open when the house is empty
  6. Coastal homes: a weekly fresh-water rinse on outdoor blinds keeps salt off the hardware. Custom Blinds Shutters & Awnings supplies replacements nationwide when cleaning is past helping
10Minutes a week
WeeklyDry dust
MonthlyDamp wipe
01

The rules for cleaning blinds

Three, for every blind.

Dry first

A dry microfibre cloth weekly, top to bottom, before anything wet. Dust plus moisture is mould.

Damp, not wet

Monthly, a cloth wrung almost dry with a few drops of dish soap, then a clean-water pass. No bleach: it degrades UV coatings, discolours wood and weakens honeycomb adhesive.

Dry before rolling

Leave a roller hanging fully extended until bone dry. Humid coastal rooms are where this rule earns its place.

02

Cleaning blinds material by material

03   Shutters

The groove behind every louvre.

Shutters look clean from across the room while dirt collects in the channel where each blade pivots against the frame. Open the louvres fully, work an old toothbrush along each groove, then wipe every blade front and back with a damp cloth: mild soapy water on PVC and aluminium, a wood-safe cleaner and immediate drying on timber.

Holiday homesLeave the blades angled a few degrees open when the house is closed up. A sealed room with no air movement grows mould behind the louvres.

04

Outdoor blinds

Sun, wind, rain and salt. Rinse before dirt bonds.

Clear PVC
A garden hose on gentle pressure; marks with warm soapy water and a soft cloth. No abrasives or scourers, which scratch permanently
Canvas and acrylic
Brush off dry dirt, hose down, a soft brush with mild soap, rinse, and dry completely before rolling up
Screen mesh
Vacuum with a brush or hose down; a monthly fresh-water rinse on the coast keeps salt out of the fibres
05

Mould on blinds

A fact of life in humid homes, from the KZN coast to a Cape Town winter bathroom.

  1. Spray

    Equal parts white vinegar and water. Leave ten minutes.

  2. Wipe

    A clean cloth; a soft brush on vinyl or aluminium for stubborn spots. Dry thoroughly.

  3. Prevent

    Weekly dusting removes what mould feeds on. In humid rooms choose aluminium venetians, PVC shutters or mould-resistant sheer fabric, and ventilate.

06

When cleaning is not enough

Some things a microfibre cloth cannot fix.

SignsA bottom bar hanging unevenly, a blind that will not roll straight, a cracked chain, light at the edges where there was none, or staining that survives repeated vinegar. Those are the mechanism, the fitting or the fibre, not dirt. Replacements are made to your measurements with free delivery.

07

Questions buyers ask about cleaning blinds

What is the best way to clean blinds?

Dry-dust weekly with a microfibre cloth and damp-wipe monthly with mild soap, matching the method to the material: soak aluminium and PVC venetians if needed, never soak wood, bamboo or honeycomb, and never roll a blind up wet. Custom Blinds Shutters & Awnings supplies replacements nationwide when cleaning is past helping.

How often should you clean blinds in South Africa?

A light dry dust weekly and a damp wipe monthly. On the coast, where humidity speeds up mould, the weekly habit matters most.

Can you clean roller blinds without taking them down?

Yes. Extend fully and wipe top to bottom. Remove them only if heavily soiled.

How do you clean behind shutter louvres?

Open the louvres fully and run a small brush along the groove where each blade meets the frame, then wipe every blade front and back.

Can you use bleach to clean blinds?

No. It degrades roller fabric UV coatings, discolours wood and weakens honeycomb adhesive. Diluted white vinegar does the job.

When should you replace blinds instead of cleaning them?

When staining will not shift, slats are bent, fabric has faded, cords are worn or the mechanism has seized. Cleaning cannot restore any of those.

08

Further reading on cleaning blinds

Content reviewed by the Custom Blinds Shutters & Awnings team. Visit the online shop for current pricing.

Custom Blinds Shutters & Awnings | South Africa’s trusted blinds, shutters and awnings specialists since 2010.

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