7 Common Wallpaper Installation Mistakes (And How to Avoid Them)
Avoid These Wallpaper Installation Mistakes
Even with peel and stick wallpaper, installation requires care and attention. Here are the most common mistakes we see – and how to avoid them.
Mistake #1: Skipping Wall Preparation
The Problem: Applying wallpaper to dusty, dirty, or damp walls leads to poor adhesion and bubbling.
The Solution:
- Clean walls thoroughly with sugar soap
- Let walls dry completely (24-48 hours after washing)
- Fill any holes or cracks
- Lightly sand glossy paint for better grip
Mistake #2: Not Letting the Wallpaper Acclimate
The Problem: Temperature differences between storage and installation can cause the wallpaper to expand or contract after application.
The Solution:
- Unroll wallpaper in the room 24 hours before installation
- Let it reach room temperature
- This is especially important in Australian summers!
Mistake #3: Starting in the Wrong Place
The Problem: Beginning at a corner often means ending at another corner with a misaligned pattern.
The Solution:
- Start from a focal point or the most visible area
- Work outward from the centre of feature walls
- End in the least noticeable corner
Mistake #4: Ignoring Pattern Matching
The Problem: Patterns that don't align create a obvious, unprofessional look.
The Solution:
- Understand your pattern's repeat before cutting
- Cut all panels before starting
- Number panels to maintain order
- Take extra time aligning each panel
Mistake #5: Applying Too Much Pressure
The Problem: Pressing too hard can stretch the wallpaper, creating gaps that appear later.
The Solution:
- Use gentle, even pressure
- Work from the centre outward
- Use a soft smoothing tool, not hard plastic
- Let the adhesive do its job
Mistake #6: Not Leaving Overlap for Trimming
The Problem: Cutting exactly to size leaves no room for adjustment, resulting in gaps.
The Solution:
- Leave 2-3cm excess at ceiling and floor
- Trim only after the panel is fully applied
- Use a sharp blade and straight edge
- Replace blades frequently
Mistake #7: Rushing the Process
The Problem: Speed leads to bubbles, misalignment, and frustration.
The Solution:
- Take breaks between panels
- Step back frequently to check alignment
- It's better to spend extra time than to redo panels
- Install over a weekend, not an evening
Pro Tips for Success
- Work with a partner for large panels
- Keep a spray bottle of soapy water for repositioning
- Start with the least visible wall to practice
- Watch our installation video before beginning
When to Call a Professional
Consider professional installation for:
- Full room coverage
- Complex patterns with precise matching
- High ceilings or hard-to-reach areas
- Commercial spaces
Most accent walls are perfectly achievable as DIY projects with patience and preparation!
