Existe-t-il des solutions de bricolage pour réparer les linteaux fissurés?
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Are there DIY solutions for repairing cracked lintels?

Are there DIY solutions for repairing cracked lintels? - An In-Depth Guide by Maçonnerie Montréal

As Montreal's leading masonry experts at Maçonnerie Montréal, we're commonly asked about DIY solutions for repairing cracked lintels. While professional help is often recommended for such tasks, this comprehensive guide will discuss potential DIY measures that can be considered in certain circumstances.

Understanding the Importance of Lintels

Lintels play a crucial role in the structural integrity of any building. They bear the load of the masonry above windows, doors, and other openings. Identifying the signs of a cracked lintel and addressing it promptly is critical to prevent further damage.

Identifying Cracked Lintels

Identifying a cracked lintel can be tricky for a non-professional. Here are some signs to watch for:

Cracks in the Masonry: Look for cracks around doors and windows. Horizontal, vertical, or diagonal cracks might suggest a lintel issue.

Bowing or Sagging: If the lintel is failing, the masonry or brickwork above it may sag or bow.

Rusting: In the case of steel lintels, visible rust stains on the wall beneath the lintel might be a sign of a problem.

DIY Repairs: When to Consider Them?

It's important to note that while some minor lintel cracks can be repaired with DIY methods, significant damages often require professional masonry services. You should only consider DIY repairs if: The crack is minor and not causing noticeable sagging or bowing in the masonry above. You have the right tools and some basic knowledge about masonry work.

DIY Repair Steps

Here are some steps to consider for minor DIY lintel repair:

Inspection: Assess the extent of the damage. Look for any signs of extensive wear, sagging, or movement.

Preparation: Clear the area around the lintel. Remove any loose masonry using a chisel and brush.

Filling Cracks: Use a suitable filler or mortar to fill in the cracks. Apply it using a trowel and smooth it out.

Sealing: After the filler has dried, seal the area with a suitable masonry sealer. This helps prevent water infiltration which can lead to further cracks.

Painting: Once the sealer has dried, you can repaint the area to match the rest of the building.

Professional Intervention

For larger cracks or if the lintel is showing signs of serious damage, professional help is necessary. A professional mason can correctly assess the damage, propose an effective repair solution, and ensure the work is completed to a high standard. This is especially important when it comes to maintaining the structural integrity of your building.


While minor lintel repairs can be done using DIY methods, it's important to recognize when professional help is needed. At Maçonnerie Montréal, we offer comprehensive lintel repair services to ensure your building remains safe and secure. Remember, when it comes to the structural integrity of your building, it's always best to choose professional expertise.