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How to Identify and Address Common Plaster Issues in Your Queensland Home

Plaster finishes are designed to provide a seamless, visually-appealing surface that enhances the overall appearance and value of your Brisbane, Gold Coast, or Queensland property. However, even the highest-quality plastering work may develop issues over time due to factors such as incorrect application, temperature fluctuations, moisture exposure, or general wear and tear. Identifying and addressing these problems as quickly and effectively as possible is essential for maintaining the integrity and appearance of your home’s surfaces.

In this blog post, we’ll explore some of the most common plaster issues that Queensland property owners are likely to encounter. We’ll discuss each problem’s typical causes and provide tips on how to identify them early to minimise any potential damage. Additionally, we will outline the most effective methods for resolving these issues, both through DIY measures and by seeking the assistance of skilled professionals like the team at We Plaster & Recruit.

The following are some of the plaster problems we’ll delve into:

  1. Cracks and Gaps: Often the result of temperature fluctuations or structural shifting, these imperfections usually begin as hairline cracks but may widen over time if not addressed promptly.
  2. Bubbling or Blistering: Caused by moisture trapped beneath the surface of the plaster, these irregularities may hinder your property’s appearance and conceal potential deterioration.
  3. Efflorescence: A white, powdery substance that forms on the surface of plaster due to excess moisture, efflorescence can indicate a more severe underlying issue such as leaks or poor ventilation.
  4. Sagging or Uneven Surfaces: These issues may arise due to improper or inadequate support during the plaster application, gravity, or the natural aging process of the plaster’s materials.

By gaining an understanding of these common plaster issues, their causes, and effective remediation techniques, you can ensure that your property remains in excellent condition, aesthetically pleasing, and protected from potential damage. Enlisting the services of a professional plastering company like We Plaster & Recruit is vital for guaranteeing both the durability and visual appeal of your Queensland home or commercial space.

How to Identify and Address Common Plaster Issues in Your Queensland Home: A Comprehensive Guide

Cracks and Gaps: Identification and Remediation Techniques

One of the most common plaster issues that property owners encounter is the formation of cracks and gaps. These imperfections can be the result of temperature fluctuations, structural shifting, or general wear and tear. To identify these issues, visually inspect your walls and ceilings for any hairline cracks or more extensive fissures.

To address minor plaster cracks, follow these steps:

  • Clean the area surrounding the crack to remove dust and debris.
  • Apply a high-quality crack filler or patching compound to the damaged area, and smooth it out using a putty knife or trowel.
  • Allow the filler to dry as per the manufacturer’s instructions.
  • Sand the patched area with fine-grit sandpaper to create a seamless finish.
  • Repaint or touch up the area as necessary.

For more extensive damage or if you’re unsure about correctly addressing the issue, it’s best to call in professional plasterers like those at We Plaster & Recruit.

Bubbling or Blistering: Prevention and Repair

Bubbling or blistering in plaster occurs when moisture becomes trapped beneath the surface, causing the plaster to lift away from the wall or ceiling. Prolonged moisture exposure often leads to the worsening of this issue, making it essential to address it promptly. Visually inspect your property for signs of bubbling or blistered areas, paying particular attention to areas susceptible to moisture exposure (such as bathrooms and kitchens).

To repair plaster bubbling or blistering, you can try the following steps:

  • Identify the source of moisture and rectify it (e.g., repair a leaky pipe, improve ventilation).
  • Allow the affected area to dry out completely.
  • Carefully remove the damaged plaster using a scraper or utility knife.
  • Clean the exposed area, removing any loose debris and dust.
  • Apply a primer and allow it to dry.
  • Fill the cavity with a suitable plaster compound, smoothing it with a trowel or putty knife.
  • Allow the plaster to dry, following the manufacturer’s recommendations.
  • Sand the area to create a smooth, even finish.
  • Repaint or touch up the area as needed.


If the issue persists or if the damage is severe, it’s wise to enlist the expertise of a professional plasterer.

Efflorescence: Identifying and Resolving the Issue

Efflorescence is a white, powdery substance that forms on the surface of plaster due to excess moisture. Left unaddressed, efflorescence can discolour and weaken plaster, and can also be indicative of more severe underlying issues such as leaks or poor ventilation. To identify efflorescence, visually inspect plaster surfaces for any white, chalky, or powdery residue.

To resolve efflorescence issues, follow these steps:

  • Determine and resolve the source of excess moisture (e.g., repair leaks, improve ventilation).
  • Gently clean the affected area with a soft brush, removing the powdery residue.
  • If the affected area is large or persistent, consider using a specialised efflorescence remover and follow the manufacturer’s instructions.
  • Allow the area to dry completely before repainting or touching up.

Sagging or Uneven Surfaces: Understanding Contributing Factors and Restoration Solutions

Sagging or uneven plaster surfaces can be caused by factors such as inadequate support during the application, gravity, or the natural aging process of the plaster materials. These issues typically result in an uneven or unsightly appearance. To identify sagging or uneven plaster, visually inspect your walls and ceilings for any significant distortions or irregularities.

Addressing sagging or uneven surfaces will generally require the assistance of a professional plasterer who can accurately determine the cause of the issue and provide customised repair solutions. In some cases, plaster may need to be entirely removed and reapplied to achieve the desired smooth and level finish.


By understanding how to identify and address common plaster issues, property owners can take proactive measures to maintain the integrity, appearance, and value of their Brisbane, Gold Coast, and Queensland homes. When it comes to resolving these problems, enlisting the services of a reputable plastering company like We Plaster & Recruit is vital to ensure top-quality outcomes. With their experience and expertise, you can be confident that your property is in the best hands, safeguarding its longevity and appeal for years to come.

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