Comment détecter les problèmes cachés lors d'un rejointoiement? (Guide 2024)
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How to detect hidden problems during repointing? (Guide 2024)

Detecting Hidden Issues during Repointing

As experts in masonry in Montreal, we understand the importance of maintaining your property. Repointing is one of the crucial steps in ensuring the durability and beauty of your brick or stone walls. However, there are hidden issues that can escape the untrained eye during this process. In this article, we will delve into detail on how to detect these hidden problems during repointing so that you can take preventive measures and avoid costly repairs in the future.

The Importance of Repointing

Repointing is the process of repairing the joints between the bricks or stones of your masonry. It is essential to prevent water infiltration, joint erosion, cracks, and other issues that could damage the structure of your building. High-quality repointing can not only enhance the aesthetics of your property but also extend its lifespan.

Obvious Signs of Masonry Problems

Before delving into detecting hidden problems, let's start with the obvious signs that something is amiss with your masonry. These warning signals can indicate that it's time for repointing:

  1. Visible Cracks: Visible cracks on the surface of your brick or stone walls are often the most obvious sign of masonry problems.

  2. Joint Erosion: If you notice that the joints between the bricks or stones are beginning to erode, this indicates the need for repointing.

  3. Water Infiltration: Moisture stains or water infiltrations inside your property are clear signs that the waterproofing of your masonry is compromised.

  4. Discoloration: Uneven discoloration of the surface of your walls may indicate masonry problems.

Hidden Problems to Watch For

Now that we've identified the obvious signs of masonry problems, let's explore the hidden issues that may escape your attention:

  1. Insulation Problems: Damaged or poorly sealed joints can lead to poor thermal insulation and energy losses. Ensure that repointing addresses these issues.

  2. Moisture and Mold: Excessive moisture behind your walls can promote the growth of health-hazardous molds. Proper repointing will ensure adequate waterproofing to prevent this problem.

  3. Structural Deterioration: Masonry problems can compromise the structural stability of your building. Look for signs such as bricks or stones that easily move.

  4. Erosion of Structural Anchors: Structural anchors can deteriorate over time, compromising wall stability. Quality repointing should also consider repairing or replacing anchors to ensure stability.

Steps to Detect Hidden Problems

Now that we know what to watch for, here are the steps to detect hidden problems during repointing:

  1. Visual Inspection: Start with a thorough visual inspection of your masonry walls. Look for obvious signs like cracks, moisture stains, and eroded joints.

  2. Waterproofing Tests: Use waterproofing tests to detect water infiltrations. This may include using a moisture detector or checking for mold presence.

  3. Structural Assessment: Consult a masonry professional to assess the structure of your walls. They can identify hidden structural issues and recommend suitable solutions.

  4. Anchor Examination: Check the condition of structural anchors and ensure they are in proper working order. If necessary, replace them to guarantee stability.

  5. Expert Consultation: Finally, don't hesitate to seek advice from a masonry expert for a professional opinion. They can detect hidden problems that you might have missed.

The Importance of Hiring Professionals

While you can perform some checks yourself, it's crucial to enlist the services of professionals for high-quality repointing. Masonry experts have the experience and skills needed to detect and address all problems, whether obvious or hidden. Don't compromise on the quality of your repointing, as it can significantly impact the durability of your masonry.


Repointing is a crucial step in maintaining your masonry, but it's equally important to detect hidden problems that could compromise the structure and waterproofing of your building. By following the inspection steps we've outlined and engaging masonry professionals, you can ensure the longevity of your property in Montreal, Laval, Longueuil, South Shore, and North Shore.

Don't let hidden problems catch you off guard. Take preventive measures today to secure the strength and beauty of your masonry.

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