Infographic explaining why old wallpaper should be removed before installing new wallpaper, including common problems and the proper wall preparation process.

Can You Install Wallpaper Over Old Wallpaper?

One of the most common questions homeowners ask is whether new wallpaper can be installed directly over old wallpaper. While it may seem like a way to save time and money, the answer is almost always no.

Professional wallpaper installers strongly recommend removing existing wallpaper before installing new wallcoverings. Starting with a clean, properly prepared wall provides the best adhesion, the smoothest finish, and the longest-lasting results.

Can You Install Wallpaper Over Wallpaper?

Technically, yes, under very specific conditions.

However, in nearly every residential and commercial project, installing wallpaper over existing wallpaper is not recommended because it increases the risk of installation problems and can significantly reduce the lifespan of the new wallpaper.

The old wallpaper becomes part of the wall system. If it begins to fail, the new wallpaper will fail with it.

Why You Should Remove Old Wallpaper

Removing existing wallpaper may require additional work, but it creates the ideal surface for a professional installation.

Better Adhesion

Wallpaper adhesive is designed to bond directly to a properly primed wall, not to an old layer of wallpaper whose adhesive may already be weakening.

Smoother Finish

Every seam, bubble, wrinkle, and damaged area in the existing wallpaper can become visible through the new wallpaper, especially when using plain textures, linen finishes, or decorative plaster designs.

Longer Lifespan

Installing wallpaper on a properly prepared surface greatly increases the life expectancy of your wallcovering.

Easier Future Removal

Wallpaper installed over a primed wall can often be removed years later without damaging the drywall. Multiple layers of wallpaper make future renovations significantly more difficult.

Problems Caused by Wallpaper Over Wallpaper

Installing wallpaper over existing wallpaper can lead to:

  • Visible seams from the old wallpaper
  • Air bubbles
  • Poor adhesion
  • Curling edges
  • Open seams
  • Uneven wall surface
  • Moisture trapped between layers
  • Difficult future removal

Even if the original wallpaper appears secure, the additional weight of a new wallcovering can cause the existing adhesive to fail over time.

The Proper Installation Process

Professional wallpaper installers typically follow these steps:

1. Remove Existing Wallpaper

Completely remove all wallpaper and adhesive residue.

2. Repair the Wall

Repair damaged drywall, fill imperfections, and skim coat the wall if necessary.

3. Sand the Surface

Create a smooth, uniform finish by sanding repaired areas.

4. Apply Wallpaper Primer

Use a dedicated wallpaper primer, such as Roman RX-35, to seal the wall and prepare it for installation.

5. Install New Wallpaper

Apply the recommended wallpaper adhesive and install the new wallcovering according to the manufacturer's instructions.

This process provides the strongest bond and the most professional appearance.

Our Recommendation

For premium wallcoverings, especially Non-Woven Wallpaper with Hot Embossed Vinyl, we always recommend removing the existing wallpaper first.

These wallpapers are designed to create a smooth, elegant finish. Installing them over an uneven surface can compromise both the appearance and long-term performance.

Investing a little extra time in proper wall preparation will ensure:

  • Better adhesion
  • Cleaner seams
  • Longer wallpaper life
  • Easier maintenance
  • Simpler future removal
  • A truly professional result

Professional Tip

If you're unsure whether your existing wallpaper should be removed, send us a few photos of your walls before placing your order.

Our team can evaluate the existing surface and recommend the best preparation method for your specific project.

Proper preparation is the foundation of every beautiful wallpaper installation.

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