Step-by-Step Guide to the Wallpaper Installation Process

Wallpaper can transform a room with texture, color, and pattern, but installing it might seem intimidating. With the right approach, tools, and patience, anyone can achieve a professional-looking finish. This guide breaks down the wallpaper installation process into clear, manageable steps to help you refresh your walls confidently.

Measuring and cutting wallpaper strips carefully

Preparing the Walls and Workspace

Before applying wallpaper, preparation is key. Walls must be clean, smooth, and dry to ensure the wallpaper adheres properly and lasts.

• Remove old wallpaper or paint flakes: Use a scraper or wallpaper remover solution to clear any loose material.

• Fill holes and cracks: Patch imperfections with spackle or filler, then sand smooth once dry.

• Clean the surface: Wipe walls with a damp cloth to remove dust and grease. Avoid overly wetting the wall.

• Prime the walls: Apply a wallpaper primer or sizing solution to seal porous surfaces and improve adhesion.

• Clear the room: Remove furniture or move it to the center, cover floors with drop cloths, and ensure good lighting.

  
  

Taking time on preparation prevents bubbles, peeling, and uneven surfaces later.

Measuring and Cutting Wallpaper Strips

Accurate measurement and cutting save time and reduce waste.

• Measure wall height: Add a few extra inches to allow for trimming at top and bottom.

• Mark and cut strips: Roll out wallpaper on a flat surface, measure the length, and cut strips with a sharp utility knife or scissors.

• Match patterns: If your wallpaper has a repeating pattern, align strips carefully so the design flows seamlessly across the wall.

• Label strips: Number or mark strips in order to avoid confusion during installation.

  
  

Cutting strips ahead of time keeps the process smooth and organized.

Applying Adhesive and Hanging Wallpaper

There are two main types of wallpaper: pre-pasted and unpasted. Follow manufacturer instructions for adhesive application.

• For unpasted wallpaper: Apply wallpaper paste evenly on the back using a roller or brush. Let it soak if recommended.

• For pre-pasted wallpaper: Activate the adhesive by soaking strips in water, then gently squeeze out excess moisture.

• Start at a corner or edge: Use a plumb line or level to mark a straight vertical guide on the wall.

• Align the first strip: Position the top of the strip at the ceiling or trim line, allowing extra length to trim later.

• Smooth the wallpaper: Use a wallpaper brush or plastic smoothing tool to press the paper onto the wall, working from the center outwards to remove air bubbles.

• Trim excess: Cut along baseboards, ceilings, and corners with a sharp blade for a clean edge.

  
  

Repeat the process for each strip, carefully matching patterns and edges.

Smoothing wallpaper on wall to remove air bubbles

Handling Corners, Seams, and Obstacles

Corners and seams require extra attention to maintain a neat appearance.

• Inside corners: Overlap wallpaper slightly or cut strips to butt tightly without gaps.

• Outside corners: Wrap wallpaper around the corner, trimming excess for a smooth finish.

• Seams: Butt edges together without overlapping to avoid visible ridges.

• Around outlets and switches: Cut X-shaped slits in the wallpaper, then fold edges neatly around the fixture.

  
  

Taking time with these details prevents peeling and visible flaws.

Drying and Finishing Touches

Once all wallpaper is hung, allow it to dry naturally. Avoid drafts or heat sources that could cause uneven drying.

• Check for bubbles: Small bubbles can be smoothed out with a pin and smoothing tool.

• Clean excess paste: Wipe away any adhesive residue with a damp sponge before it dries.

• Replace fixtures and furniture: Once dry, reinstall switch plates and move furniture back carefully.

  
  

Proper drying ensures the wallpaper adheres firmly and looks flawless.