How to Know If a Crack in Your Wall Is Serious

Crack in Your Wall: How to Identify Insane Problematic Cracks

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Sometimes, you may see a crack in the wall of your home. It can be small or big, straight or slanted. But how do you know if it’s just a small problem or something serious? This guide will help you understand the types of wall cracks and when you need to call a professional.

Why Do Cracks Happen in Walls?

There are many reasons cracks can appear:

When a new house dries, tiny cracks can form.
Walls expand and shrink in hot or cold weather.
The ground under your house can shift, causing cracks.
Water can weaken the wall and cause cracks over time.

Types of Wall Cracks

Here are some common types of wall cracks and what they might mean:

Hairline Cracks

These are very thin cracks, like a line drawn with a pencil. They usually happen in paint or plaster. They are not serious and can be fixed easily.

Vertical Cracks (Up and Down)

These cracks go straight up and down. If they are small, they are often caused by the house settling naturally. They are not dangerous unless they keep growing.

Horizontal Cracks (Side to Side)

These cracks can be more serious. They may mean there is too much pressure on the wall. If you see one, it’s best to contact professionals right away.

Diagonal Cracks (Slanted)

These go from the corner of a door or window down to the floor. They can mean the foundation is moving. If the crack is wide or growing, it could be a problem. You can read more about foundation crack repair here.

When Should You Be Concerned?

You should worry about a crack if:

It is wider than 5 millimeters (about the size of a pencil).
It is getting longer or wider over time.
It is near a window or door and makes it hard to open or close.
Water is coming through the crack.
There is mold or dampness around it.
There are many cracks in one area.

If you see any of these signs, it’s wise to get help from a professional foundation and crack repair company.

What Can You Do?

Watch the Crack

Mark the ends of the crack with a pencil and take a picture. Look at it every few weeks. If it grows, it may be serious.

Small Fix at Home

If the crack is very small and not growing, you can fill it with wall filler and paint over it. But only do this if you’re sure it’s not serious.

Call an Expert

If you are not sure about the crack, it’s better to ask a professional. They can check and tell you what to do.

Final Thoughts

Some cracks in your wall are normal and not dangerous. Others can be a sign of a big issue. Look at the crack’s size, direction, and if it’s growing. If you are ever unsure, ask a professional for help. If you see signs that your foundation might be damaged, don’t wait. A professional can inspect the issue and guide you toward the right solution.

If you notice cracks in your wall and need professional help, call us at (877) 727-2259. Our experts at Crack-X will inspect your property and take the right steps to fix your foundation. Crack-X is a civil structure Foundation repairs company serving Maine and New Hampshire. We fix foundation cracks using trusted methods and quality materials. You can count on us to restore your foundation’s strength and stability. Don’t wait for the damage to get worse—early repair can save you thousands in future costs.