How to Remove Wallpaper: Complete Step-by-Step Guide

Knowing how to remove wallpaper properly is essential before you can refresh your walls with a new design. Whether you are renovating an older HDB resale flat or updating a condo feature wall, incorrect removal techniques can damage plaster, leave stubborn adhesive residue, and add unnecessary cost to your project.

This guide walks you through the entire process, from identifying your wallpaper type to preparing the wall for its next finish. With the right tools and approach, wallpaper removal is a manageable task that delivers a clean canvas for your next interior update.

Identify Your Wallpaper Type Before You Start

Not all wallpapers behave the same way during removal. The method you use depends entirely on the type of wallpaper currently on your walls.

Strippable Wallpaper

Strippable wallpapers are the easiest to remove. They peel away from the wall in full sheets when you pull from a corner or seam. Most modern vinyl and non-woven wallpapers fall into this category. If your wallpaper was installed within the last five to ten years, there is a good chance it is strippable.

Peelable Wallpaper

Peelable wallpapers split into two layers during removal. The decorative top layer peels off cleanly, but the paper backing remains adhered to the wall. This backing needs to be soaked and scraped off separately.

Traditional Pasted Wallpaper

Older wallpapers applied with wheat paste or starch-based adhesive are the most labour-intensive to remove. These require thorough soaking or steaming to soften the adhesive before scraping. Many older HDB flats and landed properties in Singapore still have this type of wallpaper.

Tools and Materials You Will Need

Gather everything before you begin. Having the right tools on hand prevents unnecessary interruptions and wall damage.

• Drop cloths or plastic sheeting to protect floors and furniture
• Scoring tool (wallpaper tiger or perforating tool)
• Spray bottle or garden sprayer filled with warm water
• Wallpaper removal solution or a mixture of warm water and fabric softener
• Broad putty knife or wallpaper scraper (plastic edge recommended)
• Wallpaper steamer (for stubborn traditional wallpapers)
• Sponge and bucket for cleaning residue
• Painter’s tape to protect power points and switches
• Step ladder for reaching upper sections

Avoid using metal scrapers with sharp edges on plasterboard walls. These can gouge the surface and create damage that requires skim coating before repainting or re-wallpapering.

Step-by-Step Wallpaper Removal Process

Step 1: Prepare the Room

Switch off the electrical supply to the room at the distribution board. Water and electricity do not mix, and you will be using moisture near power points. Cover the floor with drop cloths and move furniture away from the walls. Use painter’s tape to seal around switches, sockets, and skirting boards.

Step 2: Test a Small Section

Start at a seam or corner and try to peel the wallpaper away. If it comes off in a full strip, you have strippable wallpaper and can proceed without soaking. If only the top layer peels, you have peelable wallpaper and will need to treat the backing. If nothing budges, you are dealing with traditional pasted wallpaper.

Step 3: Score the Surface

For peelable and traditional wallpapers, use a scoring tool to create small perforations across the surface. This allows the removal solution to penetrate behind the paper and soften the adhesive. Apply light, even pressure. Pressing too hard will damage the wall underneath.

Step 4: Apply the Removal Solution

Spray warm water mixed with wallpaper removal solution generously across a manageable section, roughly one to two metres wide. Allow five to ten minutes for the moisture to penetrate the scored perforations and loosen the adhesive. For stubborn papers, a wallpaper steamer is significantly more effective than spraying alone.

Step 5: Scrape and Remove

Starting from the bottom and working upward, slide the putty knife under the wallpaper at a shallow angle. The paper should come away in large sections. If it resists, apply more solution and wait a few additional minutes. Work in small areas to prevent the solution from drying out before you scrape.

Step 6: Clean the Wall

Once all wallpaper is removed, wash the wall with warm water and a sponge to remove remaining adhesive residue. Any paste left behind will interfere with paint adhesion or new wallpaper application. Allow the wall to dry completely before proceeding with any new finish.

Common Mistakes to Avoid

Rushing the soaking step is the most frequent error. Wallpaper adhesive needs adequate time to soften. Attempting to scrape dry or partially soaked wallpaper leads to torn paper fragments, gouged walls, and significantly more work.

Using excessively hot water or over-saturating the wall can also cause problems. On plasterboard walls common in many Singapore condos and newer HDB flats, excessive moisture can weaken the paper facing of the gypsum board. Apply enough to saturate the wallpaper, but avoid flooding the wall.

Skipping the scoring step on vinyl or coated wallpapers renders the soaking process almost useless. Vinyl is waterproof by nature, so the removal solution cannot reach the adhesive without perforations in the surface.

Finally, never attempt to hang new wallpaper over old adhesive residue. The uneven texture and compromised adhesion will cause bubbling, peeling, and an unsatisfactory finish within weeks.

When to Call a Professional

Some situations warrant professional help. If your walls have multiple layers of old wallpaper, if the underlying wall surface is in poor condition, or if the wallpaper was applied directly to unprimed plasterboard, removal becomes considerably more complex.

In older HDB flats and landed properties, walls may have been painted over wallpaper, creating an especially challenging removal scenario. A professional installer can assess the wall condition and use commercial-grade steamers and solutions that work far more efficiently than household methods.

If you are planning to install new wallpaper or wallcovering, many suppliers offer removal as part of their installation service. This ensures the wall is properly prepared for the new material.

Preparing Your Wall for a Fresh Start

Once the old wallpaper is completely removed and the wall is clean and dry, inspect the surface carefully. Fill any gouges, cracks, or holes with a suitable wall filler and sand smooth once dry.

If you plan to re-wallpaper, apply a coat of wallpaper primer or sizing. This creates an ideal surface for adhesion and makes future wallpaper removal significantly easier. For painting, a coat of sealer followed by your chosen paint system is the standard approach.

Modern non-woven wallpapers are designed for easy application and removal. When installed correctly on a properly primed wall, they strip away cleanly in full sheets years later, making future redecorations far simpler than what you may have just experienced. Browse the latest residential wallcovering options to see how far wallpaper technology has advanced.

Final Thoughts

Removing wallpaper does not need to be a dreaded task. With proper identification of your wallpaper type, the right tools, and patience during the soaking stage, you can achieve clean, damage-free walls ready for their next chapter. The key is preparation and allowing the removal solution adequate time to work.

Book an appointment with our design consultants to explore new wallpaper options for your refreshed walls.