How to Clean Walls: Expert Tips

Table of Contents

1. Know Your Wall Finish Before You Start
2. What You'll Need to Clean Walls
3. How to Clean Painted Walls
4. How to Clean Wallpaper
5. How to Clean Bare Plaster Walls
6. How to Remove Specific Stains from Walls
7. How to Clean Walls After Building Work
8. When to Call a Professional Cleaner
9. FAQs: Cleaning Walls

Know what finish you're dealing with before you start, the wrong method on the wrong surface causes more damage than the original marks. If you're not sure, the first section will help you identify it.

Know Your Wall Finish Before You Start

The single biggest mistake people make when cleaning walls is using too much water or too much pressure on a surface that can't handle it. Before reaching for a cloth, take a few minutes to identify what you're working with.

• Matt or flat paint is the most common finish in living rooms and bedrooms. It looks good but is the least washable - aggressive scrubbing or too much moisture will lift the paint and leave dull patches. Use as little water as possible and avoid abrasive pads entirely.

• Silk or satin paint is more durable and used in higher traffic areas and hallways. It can handle gentle scrubbing and a slightly wetter cloth than matt, making it the most forgiving finish to clean.

• Gloss or semi-gloss paint is found on woodwork and occasionally kitchen or bathroom walls. The hardest-wearing of the painted finishes, it can be wiped down with a damp cloth and mild detergent without issue.

• Vinyl wallpaper is moisture-resistant and can be gently wiped. Check the pattern repeat, some inks bleed with water.

• Paper wallpaper is delicate. Excess moisture causes it to bubble, peel, or warp. Dry methods only unless the manufacturer specifies otherwise.

• Bare plaster, common in older properties with lime plaster, is porous and fragile. Use as little moisture as possible and never scrub.

• Tiled walls (kitchens and bathrooms) are the easiest to clean and tolerant of most household cleaning methods.

If you're unsure of the finish, test a small, inconspicuous area first, a low corner behind a piece of furniture. Apply your chosen cleaning solution, leave for a minute, then wipe. If paint lifts, discolours, or the surface looks damaged, stop and use a gentler method.

If you're also planning to repaint after cleaning, the different types of paint guide covers which finishes suit which rooms and how durability varies between them.

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What You'll Need to Clean Walls

Most wall cleaning jobs don't require specialist products. The key is matching what you use to the surface, and having the right tools to avoid streaking or over-wetting the wall.

Equipment:

• Two buckets: one for your cleaning solution, one for clean rinse water. Using a single bucket means you're spreading dirty water across the wall.
• Microfibre cloths: several. These are gentler than sponges and don't leave fibres behind.
• A soft sponge: for slightly more stubborn patches on durable surfaces.
• A vacuum with a soft brush attachment: for dusting walls before any wet cleaning.
• A stepladder or extending handle: for reaching higher sections without stretching.

Cleaning solutions:

• Mild washing-up liquid in warm water: works for most painted surfaces and tiled walls.
• White vinegar diluted in water (1:3 ratio): effective for grease and odour, but test on wallpaper first as the acidity can affect some inks.
• Bicarbonate of soda paste: for stubborn marks on durable surfaces.
• Specialist wallpaper cleaner: worth buying for paper wallpaper rather than improvising.

Avoid bleach on painted walls - it discolours paint and weakens the surface over time. Avoid abrasive cleaners or scouring pads on any painted or plastered surface.

How to Clean Painted Walls

Painted walls are the most common surface to clean and the most varied in terms of what they can tolerate. The finish determines the method.

Step 1: Dust first.

Before any wet cleaning, vacuum the wall with a soft brush attachment from top to bottom. Dust is abrasive, wiping a dusty wall with a damp cloth grinds particles into the surface and causes micro-scratches. This step is skipped more often than it should be.

Step 2: Mix a gentle cleaning solution.

Add a few drops of washing-up liquid to a bucket of warm water. The solution should be barely sudsy, too much detergent leaves a residue that attracts more dirt.

Step 3: Test in an inconspicuous spot.

Especially important for matt and flat finishes. Wipe a small area, allow it to dry fully, and check for any dulling or lifting before continuing.

Step 4: Clean from the bottom up.

This sounds counterintuitive, but cleaning top-down on a dirty wall causes drips to run through dirty sections, leaving permanent streaks. Clean upward, overlapping slightly with each stroke.

Step 5: Use a barely damp cloth.

Wring out your cloth thoroughly, it should be damp, not wet. Work in small sections using light circular motions on durable finishes, or straight gentle strokes on matt paint.

Step 6: Rinse with clean water.

Use your second bucket to rinse each section with a clean damp cloth. Leaving soapy residue on walls dulls the finish and attracts grime faster.

Step 7: Dry immediately.

Blot the wall dry with a clean dry cloth rather than leaving it to air dry. This prevents water marks and stops moisture soaking into the wall behind.

Expert tip: For high-traffic hallways and children's bedrooms, a diluted solution of white vinegar and water (1 part vinegar to 3 parts water) cuts through fingerprints and scuff marks more effectively than washing-up liquid, without leaving residue. Avoid it on matt paint, the acidity can affect the finish.

How to Clean Wallpaper

Wallpaper is more unforgiving than paint - the wrong amount of moisture, the wrong product, or scrubbing in the wrong direction can cause permanent damage. If you're not sure what type of wallpaper you have or whether it can handle any moisture at all, it's worth checking with a professional cleaner before attempting anything beyond dry dusting. For those confident in their wallpaper type, the approach splits clearly between vinyl and paper.

Vinyl Wallpaper

Vinyl wallpaper can be gently wiped with a damp cloth and mild detergent. Use light pressure, work in the direction of any pattern, and dry immediately. Don't saturate it - the seams can lift if moisture gets behind the paper.

Paper Wallpaper

This should only be dry-cleaned where possible. A soft, dry cloth or the soft brush attachment on a vacuum removes surface dust effectively. For marks, try a dry cleaning sponge (available from DIY stores), which lifts surface dirt without moisture. If a stain genuinely requires moisture, use the smallest amount possible — a barely damp cloth dabbed gently, not wiped.

Never use:

• Abrasive cleaning pads on any wallpaper
• Neat vinegar or bleach - both damage the paper and dye
• A soaking wet cloth on any wallpaper, including vinyl

If your wallpaper is old, delicate, or showing signs of peeling at the seams, treat it as paper wallpaper regardless of the original material, deteriorated vinyl behaves more like paper once the surface coating has worn.

How to Clean Bare Plaster Walls

Bare or unpainted plaster walls, particularly older lime plaster found in period properties, require the most cautious approach of any wall finish. Lime plaster is porous and fragile; excessive moisture causes staining, softening, and crumbling, and the damage is often irreversible.

For routine cleaning, a dry microfibre cloth or soft bristle brush is sufficient to remove surface dust. Work gently from top to bottom without scrubbing.

For marks, use the minimum possible moisture. Dampen a microfibre cloth until it feels barely wet to the touch, then blot (don't wipe) the marked area. Dry the surface immediately with a clean dry cloth.

Avoid all of the following on bare plaster:

• Spray bottles directed at the wall - the water penetrates too deeply
• Vinegar, bleach, or any acidic or alkaline cleaner - these etch and dissolve the plaster surface
• Magic erasers or any abrasive pad - they remove the surface material

If plaster walls have significant marks, staining, or areas of deterioration, the correct solution is often repainting or skim-coating rather than cleaning. A cleaning services professional can advise on whether cleaning is viable or whether redecoration is the better route.

How to Remove Specific Stains from Walls

Different types of marks need different approaches. Reaching for the same solution for everything is how walls get damaged.

• Fingerprints and everyday grime: A damp cloth with a few drops of washing-up liquid, wrung out thoroughly. Works on silk, satin, and gloss finishes. On matt paint, use the minimum moisture possible.

• Grease (kitchens, above hobs and worktops): A diluted white vinegar solution or a small amount of washing-up liquid directly on the mark, left for a minute, then wiped. Grease that has been baked on by heat is harder to shift, a paste of bicarbonate of soda and water applied to the mark, left for 10-15 minutes, then wiped gently works on durable painted surfaces.

• Scuff marks: A magic eraser (melamine foam pad) used very lightly lifts scuffs from gloss and satin finishes. Use it almost dry and with minimal pressure, on matt paint it removes the finish along with the mark.

• Crayon: A small amount of non-gel toothpaste on a soft cloth, rubbed gently in circular motions, then wiped clean. Works on painted surfaces. Test first.

• Felt tip and ink: Rubbing alcohol (surgical spirit) on a cotton pad, dabbed (not rubbed) at the mark. This works on gloss and satin surfaces but can lift matt paint. Always test first.

• Mould spots: A solution of one part white vinegar to one part water, applied with a cloth and left for a few minutes before wiping. For persistent mould on bathroom or kitchen walls, a diluted bleach solution (1 part bleach to 10 parts water) is effective on tiled surfaces, but should not be used on painted walls. Persistent mould on painted walls is usually a sign of a condensation or damp problem that needs addressing at source rather than surface treatment.

If you're repainting a bathroom wall after mould treatment, see our guide to bathroom wall paint types for the right finish to use in humid conditions.

How to Clean Walls After Building Work

After any renovation or building work, walls are typically coated in fine plaster dust, paint splashes, or both. This is a different job to routine cleaning and benefits from a methodical approach.

• Plaster dust settles on every surface and is finer than regular household dust. Vacuum walls thoroughly with a soft brush attachment before using any moisture, wiping plaster dust with a damp cloth without vacuuming first creates a paste that smears into the surface and is very difficult to remove.

• Paint splashes on walls that are already decorated need careful attention. Fresh paint wipes off damp surfaces with a damp cloth. Dried paint is harder, soften it with a wet cloth left against the spot for a few minutes, then carefully lift the edge with a plastic scraper. Avoid metal scrapers, which scratch the surface.

• After significant work, a professional after-builders clean is often the most practical option. Builders cleans are a specialist service, professionals have the equipment and products to deal with plaster dust, adhesive residue, and construction grime efficiently without damaging surfaces. See the MyBuilder house cleaning cost guide for typical after-builders cleaning costs.

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When to Call a Professional Cleaner

Most routine wall cleaning is a straightforward DIY job. There are situations where calling in a professional cleaner is the more practical choice.

After building or renovation work, a professional after-builders clean covers the whole property systematically, including walls, ceilings, surfaces, and floors, with the right equipment for construction dust and residue. Attempting to do this yourself on a freshly decorated property carries a real risk of damaging new finishes if the wrong products or too much moisture are used.

End-of-tenancy cleans present a similar situation. Landlords inspect walls for marks, scuffs, and staining, and disputed deposits frequently come down to wall condition. A professional clean provides a documented result and, in many cases, the cost is offset against the deposit that would otherwise be partially withheld.

For properties that have experienced heavy smoke damage, from a chimney fire, cooking fire, or long-term cigarette smoking, specialist cleaning products and techniques are needed to remove the residue and odour properly. This is not a job for standard household cleaners.

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.

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FAQs: Cleaning Walls

How Often Should You Clean Your Walls?

For most rooms, a proper clean once or twice a year is sufficient alongside wiping obvious marks promptly as they appear. High-traffic areas, hallways, kitchens, children's bedrooms, benefit from more frequent attention. Regular dusting with a soft brush or vacuum attachment every few months prevents build-up that requires more intensive cleaning later.

Can You Clean Walls Without Streaks?

Yes, but it requires two buckets (one for cleaning solution, one for clean rinse water), cloths wrung out until barely damp, and working in small overlapping sections from bottom to top.

Streaks are almost always caused by either too much water, too much detergent left on the surface, or cleaning top-down and letting dirty drips run through already-cleaned areas. You can browse photos of professional cleaning results on MyBuilder to see what a thorough clean achieves.

Does White Vinegar Damage Paint?

Diluted white vinegar (1 part to 3 parts water) is generally safe on silk and satin finishes and is effective at cutting through grease and fingerprints. It should be avoided on matt and flat paint, the mild acidity can affect the finish, particularly on older or lower-quality paints. Always test in an inconspicuous area first.

How Do You Clean Walls Without Removing Paint?

Use the minimum moisture possible, a microfibre cloth rather than a sponge, gentle pressure rather than scrubbing, and always test first. The finish matters enormously, silk and gloss can handle more than matt. If you're regularly removing paint while cleaning, the paint may be old, low-quality, or applied over a poorly prepared surface, in which case repainting is likely needed regardless.

Should You Clean Walls Before Repainting?

Always. Paint won't adhere properly to greasy, dusty, or contaminated surfaces, and any marks or residue will show through the new coat. Wash with a sugar soap solution (available from any DIY store), allow to dry completely, then sand any rough patches before applying primer and paint.