Quels sont les risques d'un rejointoiement fait par un non-professionnel? (Guide 2024)
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What are the risks of repointing done by a non-professional? (Guide 2024)

Risks of Repointing Done by a Non-Professional


In the field of masonry, repointing is a delicate operation that requires specific expertise. This task, often underestimated, holds paramount importance for the longevity and aesthetics of brick and stone structures. In Montreal, Laval, Longueuil, as well as on the South Shore and North Shore, the demand for repointing services is significant, given the local climate and architecture. So, what are the risks associated with repointing done by a non-professional?

Incomplete Understanding of Techniques

Mortar Analysis

  • Inappropriate mortar choice: A professional will know how to choose the right type of mortar, adapted to the structure and age of the building.
  • Inconsistent mixing: Mortar preparation requires precise ingredient proportions, which an amateur could misjudge.

Incorrect Application

  • Inadequate application techniques: Repointing requires specific movements and precise timing for application and drying.

Structural and Aesthetic Risks

Long-Term Damage

  • Structural weakening: Poor repointing can lead to a decrease in the structural strength of the wall.
  • Water infiltration: Inadequate sealing due to improper repointing can cause water infiltrations, a common issue in Montreal and its surroundings.

Aesthetic Problems

  • Uneven appearance: Non-professional work can leave visible and unaesthetic traces, affecting the building's harmony.

Financial and Legal Consequences

Additional Costs

  • Future repairs: Improperly done repointing will require more costly repairs in the future.
  • Decrease in property value: A degraded appearance can affect the building's value.

Legal Responsibilities

  • Non-compliance with standards: In Montreal and the surrounding regions, failure to comply with construction standards can lead to legal consequences.

Benefits of Hiring a Professional

Expertise and Guarantee

  • Guaranteed quality: A professional offers a warranty on their work, ensuring the repair's longevity.
  • Personalized advice: An expert can also provide advice on maintenance and prevention of future issues.

Compliance with Standards

  • Regulatory compliance: Professionals stay up-to-date with local regulations and adhere to them rigorously.


The choice of a professional for repointing is crucial for the safety, aesthetics, and value of a building. In Montreal, Laval, Longueuil, as well as on the South Shore and North Shore, it is paramount to entrust these tasks to experts to avoid the risks associated with inaccurate and non-compliant execution. By choosing Maçonnerie Montréal, you ensure the longevity and beauty of your architectural heritage while enjoying invaluable peace of mind.

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