BACKMAR 6, 2026
Walking into a room and noticing your wallpaper looking less than perfect can be disheartening. Maybe you see a thin vertical line of drywall peeking through a seam that used to be tight, or perhaps a bubble has appeared in the middle of a smooth panel.
Looking for more guidance? Take a look at our Repairs overview.
First, take a deep breath. Wallpaper isn't just a sticker; it’s a material that reacts to its environment. Like wood floors or door frames, wallpaper expands and contracts based on the temperature and moisture in your home.
It is very common for wallpaper to shift slightly as the seasons change or as a home settles. Most of the time, this isn't a sign of a disaster—it's just a sign that the room's environment needs a little adjustment, or that a specific spot needs a quick touch-up.
In this guide, we will help you figure out if your wallpaper is shrinking (pulling apart) or expanding (bubbling), and how to fix it without having to strip the whole wall.
Before you grab any tools, let’s look at what the wall is telling you. Wallpaper issues generally fall into two categories:
Watch out for moisture: If you see discolored water stains or smell a musty odor near the peeling wallpaper, stop. This isn't just an adhesive issue; it’s likely a leak or significant condensation problem that needs to be addressed before you worry about the paper.
Let’s figure out exactly what is happening so you can choose the right fix.
Stand back and look at the whole wall, then get up close.
Once you’ve observed these factors, you can decide on your path forward.
If the seams are pulling apart, the paper has likely dried out and contracted.
Safe to try yourself:
When to call a pro: If the gaps are wide (more than 1/16th of an inch) or if the paper is tearing as it shrinks, the adhesive has likely failed completely. A professional may need to remove and re-hang the affected strips.
If the paper is bubbling, it has expanded due to moisture or trapped air.
Safe to try yourself:
When to stop: If you find dampness behind the paper, see dark mold spots, or smell mildew, stop immediately. Do not just glue it back down. You need to identify the water source. This is usually a job for a general contractor or a plumber if a pipe is involved.
Handling minor wallpaper repairs is very low-cost and quick.
Wallpaper isn't static; it moves with your home's environment. Small gaps often mean it's too dry, while bubbles usually mean it's too humid. By managing the room's climate and performing small spot repairs, you can keep your walls looking fresh without a full renovation.
Keeping track of when these issues appear can help you prevent them in the future. You can use the Casa app to log when you notice seasonal changes in your home's humidity or to save the specific brand of wallpaper adhesive you used for future touch-ups.
Being proactive about these small changes protects your investment and keeps your home looking its best.
(Download the Casa app today to keep all your home maintenance details in one calm, organized place.)
