How to Spot and Fix Cracks in Your Plaster Walls Before They Worsen

Does your wall have cracks? Are you unsure of what to do to fix them? Well, before coming to a solution, you need to figure out first what type of crack it is and if DIY or professional repair is necessary. For that, you need to follow this blog to the end. Small or tiny cracks can be harmless, and on the other hand, deep cracks require immediate and expert attention. What you need to focus on is not neglecting the cracks for long and making the wall smooth and clean again soon.

Types Of Cracks On Walls – Must Understand

Every crack is different and requires attention to take care of separately. You must know the common types that you usually figure out at home.

Vertical Cracks

The cracks that go straight up and come downwards are called vertical cracks. They are often seen on plaster and brick walls. Small cracks are safe, but if they slowly continue to grow with time, they need expert attention.

Hairline Cracks

These are pencil-line cracks or very thin cracks observed on the walls. They are quite natural with plaster walls and usually harmless, and can be repaired easily.

Plaster Cracks

With time, having plaster walls, many of the buildings acquire cracks. Sometimes, a weak foundation can also encourage cracks in the plasterboard. Light cracks can be easily removed with plastering.

Settlement Cracks

With time, if the foundation of your home has moved into the ground, you can spot zig-zag lines on the walls. Small diagonal lines are frequently seen, but if they grow naturally, ask for expert help.

Horizontal Cracks

This is serious. Noticing a long horizontal crack line can be a caution. Near the load-bearing walls, it may signify that your building’s foundation can be in danger. Immediate expert attention is required.

When Do Wall Cracks Become a Real Problem?

After understanding the types of cracks, you must have a clear idea now of when you can really worry about the cracks on the walls. Small cracks can be easily repaired with a simple DIY method or by plastering work. If any larger horizontal or vertical cracks are diagnosed, it may cause structural issues.

Here’s when you should be concerned –

• The crack is wide or keeps getting bigger
• Floors feel uneven or sagging
• Doors or windows suddenly become hard to open or close
• You see gaps between walls and ceilings
• Parts of the wall look like they are shifting

With age, the ground beneath your home may shift slowly, and it may hamper the base support of the foundation. If the base gets cracks or rot, the problem becomes worse. In such cases, restumping is recommended. Professionals will come and install new and sturdy concrete stumps to stabilise the building.

Easy Ways to Repair Different Types of Wall Cracks

The way you repair a crack depends on what the wall is made of and the type of crack you’re looking at. Here’s how to fix the most common wall cracks –

1. Fixing Cracks In Plaster Walls

To repair plaster cracks –

• Clean the crack – Use a scraper to clear loose plaster and dust.
• Apply plaster filler – Small cracks need a simple repair compound. For bigger cracks, use a bonding agent first.
• Smooth the area – Let it dry, sand it gently, and make it even with the wall.
• Paint the patch – Apply paint so the repair blends smoothly.

2. Repairing Cracks In Plasterboard Walls

For plasterboard cracks –

• You need to prepare the crack using a small knife and prepare a clean edge.
• Now fill the gap using any joint compound.
• You must smooth out the surface with any drywall knife.
• Once it is dry, use sand on the wall surface and paint it.

3. Steps To Repair Cracks On Walls

Brick and concrete cracks need stronger repair steps –

• Clean the crack – First, eliminate all the debris and dust to clean the area.
• Apply masonry filler – To fill the clean cracks, use hydraulic cement or concrete filler to protect from water.
• Smooth the repair – You need to evenly spread the filler on the wall.
• Seal the region – Use sealant to prevent moisture intrusion.

4. Fixing Structural Wall Cracks the Proper Way

Structural cracks are serious. These appear in load-bearing walls or foundations and should never be fixed as a DIY project. A qualified structural engineer should inspect them and recommend for –

• Reinforcing the foundation to stabilise the base
• Restumping with strong concrete backings
• Strengthening load-bearing walls for support.

Final Takeaway

More or less, you must not ignore any cracks on the walls. Understand its severity and repair it accordingly. Try DIY plastering repair if you can, or get help from a professional like We Fix Walls. But an early fixing is crucial to escape costly repairs in the future. For trusted outcomes and smooth finishes, calling specialists is a better option.