Wallpaper Installation: Prep and Application Tips

By Heath Ceramics | Curated Home Goods | Sustainably Handcrafted | Published: 2026-10-19

Category: How-to Guides

Learn how to prep walls for wallpaper and apply it smoothly, with step-by-step instructions, common mistakes to avoid, and tips for a professional finish.

Quick Answer

For a smooth wallpaper installation, focus on thorough wall preparation and careful application: clean, repair, and prime your walls, then use a plumb line and proper pasting technique to hang each strip.

Why wall preparation matters more than application

Even the most beautiful wallpaper, like Heath's handcrafted Blue Slice design, will look uneven if the wall surface isn't properly prepped. Dust, bumps, and old paint can create bubbles and visible seams. Spending time on prep prevents frustrating rework and ensures the wallpaper adheres evenly.

Another key consideration: wallpaper is less forgiving than paint. Once it's on the wall, repositioning can stretch or tear the material. That's why every step before the first strip—cleaning, patching, and priming—directly affects the final result.

Choosing the right adhesive for your wallpaper

The type of wallpaper you choose determines the adhesive. Some wallpapers are pre-pasted, while others require separate paste. For heavyweight or textured papers, a stronger adhesive may be necessary. Always check the manufacturer's instructions—using the wrong paste can cause the paper to peel or stain.

If you're working with a non-woven wallpaper, the paste is applied to the wall instead of the paper, which makes installation cleaner and easier to adjust. For traditional paper, pasting the back of the strip is standard, but it requires careful timing to avoid over-soaking.

Step-by-Step Wallpaper Installation

Prepare the wall surface: Clean the wall to remove dust and grease, fill holes and cracks with spackle, sand smooth, and apply a wallpaper primer. This creates a stable surface and helps the wallpaper release later if you want to remove it. Checkpoint: Run your hand over the wall; it should feel smooth and clean before you start.
Measure and cut your strips: Measure the wall height and add 4-6 inches for trimming. Cut strips from the roll, and if your wallpaper has a pattern, match the pattern at the seams before cutting the next strip. Checkpoint: Number each strip on the back to keep the pattern order straight.
Mark a plumb line: Use a level and pencil to draw a vertical line at your starting point. This ensures the first strip is perfectly straight; otherwise, every subsequent strip will lean. Checkpoint: Double-check the plumb line with a level before applying the first strip.
Apply the adhesive: If using paste-the-paper wallpaper, apply a thin, even coat of paste to the back using a brush or roller. Book the paper (fold it paste-to-paste) and wait the recommended time so the paper expands evenly. Checkpoint: Avoid over-pasting, which can cause the paper to stretch or tear.
Hang the first strip: Align the strip with your plumb line, leaving a small overlap at the top and bottom. Smooth it from the center outward with a smoothing tool or brush to remove air bubbles. Do not pull or stretch the paper. Checkpoint: If you see bubbles, gently lift the edge and re-smooth; don't press hard with your fingers.
Trim the excess: Use a sharp utility knife and a straightedge to trim the top and bottom edges while the paper is still wet. Wipe off excess paste with a damp sponge. Checkpoint: Change the blade frequently for clean cuts; a dull blade can tear the paper.
Hang the remaining strips: Match each new strip to the previous one at the pattern, pressing the seam lightly. Roll the seams with a seam roller to ensure they stay flat, but avoid rolling over the textured parts of the paper. Checkpoint: After each strip, wipe away any paste on the face of the paper before it dries.

Heath Wallpaper: What to Know Before You Install

Wallpaper in Blue Slice: Heath's Blue Slice wallpaper is part of a collection designed with Hygge & West, screenprinted by hand in Chicago, IL. Hand-screenprinted wallpaper can have subtle variations, so buy from the same dye lot and inspect each roll before cutting.
Wallpaper in Blue Slice