What Are Fretting Bricks?

What Are Fretting Bricks?

At Bricks Fix WA, we’re often called out to inspect and repair fretting bricks, a common issue in homes and buildings across Perth and WA. But what exactly causes this problem, and can it be fixed without replacing your entire wall? Let’s take a closer look.

What Causes Fretting Bricks?

Fretting bricks – sometimes referred to by clients as “threatening bricks” due to their crumbling or deteriorating appearance – are caused by moisture and salt attack. Water enters the bricks or mortar, often from rising damp, poor drainage, or long-term exposure to garden beds and reticulation systems. As the moisture evaporates, it leaves behind salt crystals that slowly break down the brick from the inside out.

The result? Soft, powdery, and crumbling bricks, usually starting at the base of the wall – where moisture is most concentrated.

Are Fretting Bricks a Structural Problem?

In the early stages, fretting brick is mostly a cosmetic and surface issue, but if left untreated, it can lead to more serious structural damage. The longer it’s ignored, the deeper the damage can go — weakening the bond between bricks and mortar, and compromising the stability of the wall.

Can They Be Fixed?

Yes — and it’s a repair we specialise in. The key to a long-lasting solution is not just patching over the problem, but removing the affected bricks, investigating the source of moisture, and replacing them with carefully matched brickwork and mortar.

How Do We Fix Fretting Bricks?

Here’s how we approach a fretting brick repair:

  1. Inspection – We assess the extent of the damage and identify the cause (rising damp, leaking pipes, poor garden design, etc).

  2. Removal – Damaged bricks and mortar are carefully removed without disturbing the surrounding structure.

  3. Replacement – New bricks are matched and laid using traditional techniques.

  4. Mortar Matching – We blend the new mortar to match your original colour and texture, preserving the heritage look.

  5. Prevention – We advise on drainage, damp-proofing, and design changes to prevent it from recurring.

Can You Match the Brick and Mortar?

Yes. We pride ourselves on our ability to match both brick and mortar for a seamless repair. As a trusted contractor for Midland Brick, we have access to one of the widest selections of brick types in WA – old and new. Whether your property is heritage-listed or modern, we’ll do everything we can to source the right match.

Why is the Damage Usually at the Bottom of the Wall?

Fretting bricks typically appear at the bottom of the wall because of rising damp, poor site drainage, or contact with soil and mulch. These areas absorb and retain moisture, especially during wet seasons, which then works its way into the masonry. Retaining walls, garden beds, and even leaking garden taps can accelerate the damage.

Bricks Fix WA – Specialists in Brick Restoration

We’ve built our reputation on high-quality brick restoration and heritage repairs. Our experienced team treats every job with care, using traditional skills and modern materials to restore your property the right way.

As a proud Midland Brick contractor, we have the relationships, materials, and expertise to get the job done properly – the first time.

Need Brickwork Repairs in Perth?

If you’ve noticed crumbling bricks or discoloured mortar around your home, especially near the base of your walls, don’t wait. Contact Bricks Fix WA for a free inspection and expert advice on how to restore your walls the right way.