Wallpaper Hanging & Removal Tips

Removing wallpaper is one of those tasks that seems straightforward—until it isn’t. You peel, steam, and scrape away, only to discover the surface underneath isn’t quite what you hoped. Cracks, patches of missing plaster, or a rough, uneven texture raise an important question: do I need to replaster after removing wallpaper?

In this guide, we’ll walk you through everything you need to know about assessing and treating your walls post-wallpaper removal. We’ll cover when replastering is necessary, alternatives that may save you time and money, and tips to get the smooth, paint-ready finish you’re after.

What Happens to Walls After Wallpaper Removal?

When you remove wallpaper—especially older styles like woodchip or vinyl—you’re not just peeling away paper. You’re also potentially pulling off chunks of the top plaster layer, adhesive residue, and even paint. The wall beneath may reveal:

Flaking or crumbling plaster
Uneven surfaces
Stains or mould spots
Gouges caused by overzealous scraping

If your walls were poorly prepared before wallpaper was first applied, the damage may be more significant.

Do You Always Need to Replaster?

Not always. Replastering is typically only required if:

The existing plaster is crumbling or falling away
There are deep cracks or holes in the surface
Large areas of adhesive or paper backing won’t come off
The wall is too textured to paint over

Sometimes, a good clean, some filler, and sanding is enough to get your wall ready for decorating.

When Replastering is Absolutely Necessary

1. Old and Damaged Plaster

Homes built before the 1970s often have lime plaster, which can deteriorate over time. If you see powdery surfaces, crumbling corners, or cracks over 2mm wide, replastering is advisable.

2. Steam Damage

Using a wallpaper steamer incorrectly can cause steam to penetrate the plaster and weaken it—especially if you hold it too long in one spot. This can result in a bubbling or flaking surface.

3. Multiple Layers of Wallpaper

Older homes often have several generations of wallpaper layered on top of each other. Removing them can strip the wall surface back to bare masonry in some places.

4. Moisture Damage or Mould

If the wall shows signs of damp, discolouration, or mould after wallpaper removal, the plaster may be compromised and need replacing.

Alternatives to Replastering

1. Patching and Skimming

Small cracks or gouges can be filled with multi-purpose filler or patching plaster. Skimming—a thin layer of finishing plaster—can smooth out uneven textures and minor imperfections.

2. Wall Lining Paper

Lining paper is a popular alternative to full replastering. It helps to:

Hide minor imperfections
Provide a smooth base for painting or new wallpaper
Reduce preparation time and cost

3. Wall Sanding

For minor adhesive residue or bumps, a thorough sanding using a pole sander or electric drywall sander might suffice.

Step-by-Step: How to Assess Your Walls

Step 1: Clean the Walls

Remove all wallpaper residue using a sponge, warm water, and a mild detergent. Let the wall dry completely.

Step 2: Inspect Under Natural Light

Run your hand over the surface and look at it from different angles to spot:

Dents or gouges
Cracks
Flaky patches
Uneven textures

Step 3: Tap Test

Gently tap the wall. A hollow sound may indicate the plaster has delaminated from the underlying surface.

Step 4: Test Paint Adherence

Apply a strip of masking tape and peel it off. If large chunks of plaster come away, it’s a bad sign.

Tools and Techniques for Replastering

If you do need to replaster, here’s what you’ll need:

Tools

Hawk and trowel
Plastering float
PVA bonding agent
Mixing bucket and paddle
Sandpaper or electric sander

Techniques

Preparation: Seal the wall with diluted PVA glue.
First coat (undercoat): Apply bonding plaster to level out holes or uneven areas.
Second coat (skim): Use finishing plaster to create a smooth, paint-ready surface.
Drying time: Allow at least 5-7 days before decorating.

Lining Paper vs Replastering

Feature	Lining Paper	Replastering
Cost	£	£££
Time	1-2 days	3-5 days
Ideal for	Minor surface flaws	Severe wall damage
Paint-ready	Yes	Yes (after drying)
Skill level	DIY-friendly	Often requires professional

If you’re working on a budget and your walls are generally sound, lining paper is an excellent compromise.

Should You DIY or Hire a Professional?

DIY if:

You’re experienced with home decorating
The damage is minimal
You have the proper tools

Hire a pro if:

The wall has extensive damage
You’ve uncovered lath and plaster or bare brickwork
Time is tight and you want a perfect finish

Professional plasterers also know how to treat damp issues or prepare walls for high-moisture areas like bathrooms.

Final Prep Before Painting

Once your wall is smooth—whether via patching, lining, or replastering—do the following:

Prime the Surface
Use a mist coat (diluted emulsion) for new plaster or a good-quality wall primer for lining paper.
Inspect for Remaining Imperfections
Fill and sand any last tiny holes or scratches.
Apply Two Coats of Paint
Always use a roller and brush for edges. Choose breathable paints for freshly plastered walls.

Common Mistakes to Avoid

Skipping the cleaning phase: Paint won’t adhere to dusty or gluey walls.
Painting too soon: Fresh plaster must be completely dry.
Using steam recklessly: Overuse of steamers can crack plaster.
Ignoring underlying issues: Don’t cover mould, damp, or cracked plaster without treating them.

Conclusion: Replastering—Necessary or Not?

Whether you need to replaster after removing wallpaper depends entirely on the condition of your walls. If they’re cracked, crumbling, or damaged by steam, replastering is a smart move that ensures a flawless finish. If they’re generally sound, a combination of filler, sanding, and possibly lining paper will do the trick.

Take your time to assess the surface properly—and when in doubt, get a second opinion from a qualified plasterer. For homeowners in Dublin and surrounding areas, OS Decor offers professional, eco-conscious plastering and painting solutions. Whether your walls need a complete refresh or just a finishing touch, contact OS Decor today to book your expert consultation and transform your space with confidence.

Wallpaper removal might seem straightforward, but doing it properly requires knowledge, preparation, and the right techniques. Professional decorators don’t just rip it off — they follow a methodical process that ensures clean walls and a perfect foundation for future decoration. In this guide, you’ll discover exactly how the experts tackle wallpaper removal, with insights that can save you time, protect your walls, and elevate your results.

Why Removing Wallpaper the Right Way Matters

Before diving into the technical steps, it’s important to understand why correct wallpaper removal is crucial:

Prevents wall damage: Incorrect methods can gouge plaster or drywall.
Ensures a smooth surface: Proper stripping eliminates leftover glue and debris
Prepares for redecorating: Paint or new wallpaper adheres better to a clean, smooth wall
Maintains home value: A professional finish keeps your interiors attractive and market-ready.

Essential Tools Professional Decorators Use

Here’s what the pros typically keep in their wallpaper-stripping toolkit:

Wallpaper scorer
Steam wallpaper remover
Chemical wallpaper stripper
Putty or stripping knives
Bucket and sponge
Protective gloves and goggles
Dust sheets and plastic sheeting
Ladder
Spray bottle or garden sprayer

Having the right tools is half the battle. But using them correctly is where the skill lies.

Step-by-Step: How Professionals Remove Wallpaper

The Preparation Phase: Room Setup and Safety

Before the first strip comes off, decorators prepare the space meticulously:

Clear the room: Remove furniture and wall decor.
Protect surfaces: Lay down dust sheets and cover switches/sockets with plastic and tape.
Turn off the power: Prevent accidents by switching off electricity in the area.
Ventilate the room: Especially important when using chemical solutions.

Chemical vs. Steam Methods: Which Works Best?

Professionals often decide between two main methods based on the type of wallpaper and size of the job.

Chemical stripper: Best for small rooms or thin wallpaper. Applied with a spray bottle or sponge.
Wallpaper steamer: Ideal for large spaces or multiple wallpaper layers. Penetrates through to loosen stubborn adhesive.

Each method has its place, and sometimes both are used in combination.

Using a Wallpaper Steamer Like a Pro

Steamers are powerful tools but must be used carefully:

Fill with warm water for quicker heat-up.
Let it steam: Wait until steam is visibly flowing from the plate.
Apply in sections: Hold the steam plate on the wallpaper for 10–15 seconds.
Scrape gently: Use a flat stripping knife to lift the softened paper
Move methodically: Work from bottom to top, allowing rising steam to assist the process.

Working with Chemical Strippers Safely

Chemical removers can be highly effective with minimal effort if applied properly:

Score the wallpaper using a wallpaper perforator tool to allow the solution to soak in.
Apply stripper: Spray evenly across the wall and let it sit for the recommended time.
Begin scraping: Work in sections using steady, short strokes.
Reapply as needed for stubborn spots.
Clean up: Use a sponge with warm water to remove residual adhesive.

Pro Tips for Different Types of Wallpaper

Dealing with Stubborn and Painted Wallpaper

Wallpaper that has been painted over or has heavy-duty vinyl layers poses a unique challenge:

Score thoroughly: Use a spiked roller or wire brush.
Use a combination method: Steam followed by chemical application often works best.
Be patient: It may take multiple passes to remove all layers completely.

Removing Peel-and-Stick or Strippable Wallpaper

The easiest to remove — if it was applied correctly:

Start at a corner and gently peel away.
Use a heat gun or hairdryer for sections that resist.
Clean any remaining adhesive with warm water and washing-up liquid.

Common Mistakes to Avoid

Over-wetting the wall (especially plasterboard).
Scraping too aggressively and damaging the surface.
Leaving behind glue, which affects future finishes.
Not scoring thick wallpaper before applying solution.
Ignoring safety precautions when using steam or chemicals.

Time-Saving Tricks from the Experts

Always test a small area first to determine the best removal method.
Work in teams: One steams or sprays, another scrapes.
Keep tools sharp and clean to avoid unnecessary effort.
Use a smaller steam plate for tricky areas like sockets and corners.

Cleaning Up After Wallpaper Removal

Once all the paper is removed, the final clean-up begins:

Finishing Touches: Wall Cleaning and Inspection

Sweep the wall with a broom to remove dust.
Scrape off any leftover paste or paper.
Wash with warm water and sponge to dissolve adhesive residue.
Rinse and dry: Allow the wall to air-dry completely before redecorating.
Inspect for damage: Repair any cracks or dents with filler.

When Should You Call a Professional?

There are instances when hiring a pro is the smart move:

If your wallpaper is decades old and layered.
If you’re dealing with plasterboard and want to avoid costly damage.
If you’re on a tight timeline and need efficient results.
When the wallpaper has been painted over multiple times.
When you’re unsure what’s underneath and fear wall damage.

Professionals bring not just tools, but experience and finesse that guarantee quality outcomes.

Final Thoughts on Professional Wallpaper Removal

Wallpaper removal, done professionally, is an art. It requires attention to detail, understanding of different materials, and the right mix of patience and technique. Whether you choose to do it yourself or hire experts, following the right steps will ensure your walls are smooth, clean, and ready for the next beautiful transformation.

For those seeking guaranteed results with minimal hassle, OS Decor offers expert wallpaper removal as part of our premium decorating services across Dublin and surrounding counties. Our team ensures a flawless finish using eco-friendly methods. Contact us today to get a quote and experience the OS Decor difference.