How to Fix Bubbles in Wall Decals: A Quick Repair Guide

You stepped back to admire your freshly applied magnetic wall decal, and there it is — a little bubble catching the light, or a faint crease running across an otherwise perfect surface. Before you panic and start Googling "return policy," take a breath. 

Bubbles and wrinkles are among the most common (and most fixable) hiccups in decal application, and in most cases you can smooth them out in a few minutes with things you already have around the house.

This guide walks you through exactly how to fix bubbles in wall decals and how to flatten out stubborn wrinkles or creases without pulling the whole thing down and starting over. 

If you haven't applied your decal yet, this isn't the place to start; head to our full step-by-step setup guide first. This post picks up right where that one leaves off: your decal is already on the wall, and you're here to troubleshoot.

Why Do Bubbles and Wrinkles Show Up in the First Place?

Before fixing anything, it helps to understand why magnetic wall decal bubbles happen at all. Most of the time, it comes down to one (or a combination) of these:

Trapped Air

As the adhesive backing peels away, tiny pockets of air can get sealed underneath the decal, especially if it was applied quickly or from the wrong starting corner.

A Rushed Application

Smoothing too fast, or working outward from the middle instead of pressing firmly as you go, tends to push air around rather than out.

Dust or Debris on the Wall

Even a few specks of dust under the decal can create a raised bump that looks like a bubble.

A Wall That Hasn't Fully Cured

Freshly painted walls continue to release trace gases as they dry — a process called off-gassing. The U.S. Environmental Protection Agency notes that paints and coatings release volatile organic compounds both during and after application, and that this process continues for some time after the surface looks and feels dry.

That slow release of gas can work its way under a decal and form small bubbles days after installation, which is exactly why we recommend waiting a full 30 days after painting before applying your decal.

Temperature and Humidity Swings

Adhesive backing is tackiest in a moderate, stable room temperature. A cold room, a humid bathroom-adjacent wall, or a spot near a heating vent can all affect how evenly the decal bonds.

Creases From Shipping or Storage

If the decal sat rolled up tightly for a while, you may see a wrinkle that was there before you even started peeling.

Knowing the cause helps you pick the right fix — a fresh air bubble responds to a completely different technique than a shipping crease.

Bubbles vs. Wrinkles: A Quick Way to Tell Them Apart

Before you reach for the hair dryer, take a second to look closely at what you're actually dealing with, since the two problems call for slightly different fixes.

• A bubble is a raised, rounded pocket with air trapped underneath it. Press on it gently, and you'll usually feel a slight give, like a tiny cushion of air.

• A wrinkle or crease is a flat fold or ridge in the material itself, often running in a line rather than a round shape. There's no air pocket to push out — the vinyl itself needs to be relaxed and re-flattened.

It's common to have both on the same decal, especially if it was applied a little quickly. Tackle the bubbles first, since flattening them can sometimes ease minor wrinkles nearby before you even get to them.

What You'll Need

Good news: you almost certainly already own everything required to fix bubbles in a wall decal.

• A hard, flat-edged tool (a credit card, hardcover book, or plastic scraper all work well)

• A hair dryer set to low or medium heat

• A fine sewing needle or pin

• A soft, lint-free cloth

• A little patience — rushing a fix tends to create a new bubble somewhere else

How to Fix Small Air Bubbles

Small, dime-sized bubbles are the easiest fix and the most common one you'll run into.

1. Warm the Area Gently

Hold a hair dryer on low heat about 15–20cm from the bubble and move it in slow circles for 10–15 seconds. This softens the adhesive just enough to let it reposition.

2. Push the Air Toward the Nearest Edge

Using your flat-edged tool, press down at the center of the bubble and glide outward toward the closest edge of the decal in one smooth motion. Avoid pressing in multiple directions at once, which can just relocate the air rather than release it.

3. Prick Stubborn Bubbles

If a bubble won't budge, a fine needle can help. Insert it at a shallow angle into the center of the bubble (not straight down, to avoid an obvious hole), then use your flat tool to press the trapped air out through the tiny opening. 

This is a widely recommended technique for vinyl decals in general — pricking a bubble and smoothing the air out through the pinhole rarely leaves a visible mark once the surface is pressed flat.

4. Wipe and Check

Once the bubble is flattened, wipe the area with a soft cloth to remove any excess warmth or moisture, and let it sit undisturbed for a few minutes.

How to Fix Large Bubbles or Trapped Air Pockets

Bigger air pockets — anything wider than a coin — need a slightly different approach, since pushing that much trapped air to one edge can create new wrinkles along the way.

1. Lift The Decal Back From the Nearest Edge

Gently peel the decal back, starting from whichever edge or corner is closest to the bubble, until you've exposed the trapped air pocket.

2. Re-warm the Adhesive

Use the hair dryer on low heat to gently warm both the exposed adhesive and the section of wall it will reattach to.

3. Reapply From the Center Out 

Lay the decal back down starting at the point closest to where you lifted it, and smooth outward toward the edge in firm, overlapping strokes with your flat tool. This center-out motion is the same principle used across large-format vinyl and wallpaper installs to prevent air from being trapped a second time.

4. Avoid Overstretching

Pulling the decal taut while reapplying can create tension that shows up as a wrinkle later. Let the material relax back into place rather than forcing it.

How to Smooth Out Wall Decal Wrinkles and Fix Decal Creases

Wrinkles and creases behave differently than bubbles — they're usually a fold in the material itself rather than trapped air, so smoothing motions alone won't always resolve them. Here's how to fix decal creases specifically:

1. Warm The Creased Section Directly. 

Hold the hair dryer on low-to-medium heat about 15cm from the crease, keeping it moving constantly so you don't overheat one spot. Around 20–30 seconds is usually enough to make the vinyl pliable.

2. Press and Stretch Gently While Warm. 

While the section is still warm, use your fingers or a flat tool to press the crease flat, working from just outside the fold inward. Small, even pressure works better than one hard push.

3. Hold it Flat While it Cools. 

Press a flat, heavy object (a hardcover book works nicely) over the area for a minute or two while the vinyl cools and resets in its new, flattened position.

4. Set Realistic Expectations for Deep Creases. 

A crease that formed from the decal being folded tightly before installation may soften significantly with heat but not disappear completely. In that case, positioning that section behind a magnetic toy shelf or artwork can be an easy visual fix while the material continues to relax over the following days.

When Bubbles Keep Coming Back: Check Your Wall

If you've smoothed a bubble out three times and it keeps reappearing in the same spot, the issue usually isn't your technique — it's the wall underneath. Certain surfaces just don't hold adhesive evenly, no matter how carefully you apply the decal. 

Common culprits include:

• Stain-resistant or scrubbable paint finishes, which are designed to repel things from sticking to them

• Air-cleaning or textured paints

• Textured walls, wallpaper, or uneven plaster

• Old, cracked, or peeling paint underneath

• Walls painted within the last 30 days (see the off-gassing explanation above)

Our full wall compatibility guide breaks down exactly which surfaces play nicely with magnetic wall decals and which ones don't. If you're not sure whether your wall is the culprit, test a small out-of-the-way patch with your included sample sheet before troubleshooting the entire decal further.

Preventing Bubbles and Wrinkles Next Time You Apply

We won't repeat the full application walkthrough here (you'll find every step in our setup guide, linked at the top of this post), but a few quick habits go a long way toward a smooth wall decal finish from the start:

• Peel the backing away gradually, a little at a time, rather than all at once

• Always smooth from the center outward, never edge to edge

• Let a freshly painted wall cure for the full 30 days before applying

• Keep the room at a comfortable, stable temperature while you work

Built to Minimize Bubbles From the Start

If you're weighing whether it's worth switching decals altogether after a rough first install, it's worth knowing that not all magnetic wall decals are built the same. 

Every Tix&Mix decal uses our StickToPress™ adhesive system, which is designed to be pressed into place gradually and repositioned if needed — a real advantage over one-shot adhesives that lock in the first air bubble they meet. 

Pair that with an anti-scratch matte coating that holds up to daily magnet play, and small fixes like the ones above become the exception rather than the rule. You can browse the full Magnetic Wall Board collection to see the adhesive system in action, or shop our best-selling Brown Sugar decal if you're comparing colors for a new wall. 

Once your surface is smooth, our Wall Board Add-ons — from wooden puzzles to number sets — are ready to go straight onto it.

Frequently Asked Questions

Why does my magnetic wall decal have bubbles right after I applied it? 

Fresh bubbles almost always come down to trapped air from the application itself — either the decal was smoothed too quickly, or air got sealed in while the backing was being peeled away. This is completely normal for a first-time install and is usually fixable in minutes using the center-out smoothing technique described above.

Can I fix bubbles without taking the whole decal down? 

Yes, in the vast majority of cases. Small and even medium-sized bubbles can be pushed out or pin-pricked in place without lifting more than a small section of the decal. You'd only need to remove the entire piece if bubbling covers most of the surface, which is rare.

Will pricking a bubble with a needle leave a visible hole? 

Not if it's done correctly. Insert the needle at a shallow angle rather than straight down, and press the air out through the opening immediately afterward. Once the surface is smoothed flat, the tiny puncture point is essentially invisible from normal viewing distance.

How do I get rid of wrinkles or creases that were there before I even applied the decal? 

Shipping creases usually respond well to gentle, even heat. Warm the area with a hair dryer on low heat, then press and hold it flat while it cools. Deep folds may soften rather than fully disappear, and often relax further over the following days as the material settles.

Is it safe to use a hair dryer directly on the decal or the wall? 

Yes, as long as you use low or medium heat and keep the dryer moving rather than holding it in one spot. This is the same gentle-heat approach we recommend for removing the decal later on, and it won't damage the vinyl or the wall surface when used briefly and at a safe distance.

Why do bubbles keep coming back in the same spot no matter how many times I smooth them out? 

This is usually a sign that the wall surface itself isn't fully compatible with adhesive decals — often due to stain-resistant paint, texture, or a wall that hasn't finished curing after painting. Check our wall compatibility guide (linked in the section above) and test a sample patch before assuming your application technique is at fault.

Is it normal for a new bubble to appear days after installation, not just during? 

It can happen, especially on a wall that was painted recently. As the paint continues to off-gas over its first several weeks, that trace gas can work its way under the decal and create a small bump that wasn't there on day one. It's usually a quick fix with the same smoothing technique used for fresh bubbles.

What if my wall type just isn't compatible — will bubbles ever go away? 

If your wall is a genuinely incompatible surface (textured, stain-resistant, or freshly painted), bubbling may keep recurring regardless of technique. In that case, the fix isn't more smoothing — it's either waiting out the paint cure time, testing an alternate wall, or reaching out to our support team for guidance specific to your surface.

Do I need any special tools to fix bubbles and wrinkles, or will household items work? 

Household items work just fine. A hair dryer, a flat-edged card or book, a sewing needle, and a soft cloth cover almost every situation described in this guide. There's no need to buy a specialty decal-repair kit for the kind of fixes most families run into.