Comment le rejointoiement peut-il contribuer à l'efficacité énergétique d'un bâtiment? (Guide 2024)
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How can repointing contribute to the energy efficiency of a building? (Guide 2024)

The Crucial Role of Repointing in Building Energy Efficiency in Montreal

Context and Importance of Repointing

Repointing, often perceived merely as a cosmetic maintenance, plays a crucial role in the energy efficiency of buildings. In the Montreal, Laval, Longueuil, as well as on the South Shore and North Shore regions, this practice is even more relevant due to the variable and sometimes extreme weather conditions.

What is Repointing?

Repointing involves renewing the mortar joints between masonry elements, such as bricks and stones. This technique is essential for maintaining structural integrity, but also for optimizing a building's thermal insulation.

Impact of Repointing on Energy Efficiency

Improvement of Thermal Insulation

  1. Reduction of Thermal Bridges: Poorly maintained joints can create thermal bridges, areas where heat escapes more easily. Repointing helps to eliminate these, thus contributing to better heat retention in winter and coolness in summer.
  2. Prevention of Air Infiltrations: Degraded joints allow the passage of cold or hot air, affecting indoor comfort and increasing energy consumption.

Combating Humidity and Mold

A poorly jointed masonry facilitates the entry of moisture, leading to mold problems and accelerated degradation of existing insulation. Repointing prevents these issues and maintains the efficiency of insulating materials.

Durability and Longevity of the Building

Well-maintained joints ensure better durability of the masonry, avoiding costly renovations and energy losses in the long term.

Repointing: A Cost-Effective and Ecological Investment

Savings on Energy Bills

By improving thermal insulation, repointing contributes to significantly reducing heating and air conditioning costs. It is an initial investment that translates into sustainable savings.

Contribution to Environmental Protection

By reducing energy consumption, repointing is part of a sustainable development approach, helping to reduce the carbon footprint of the building.

Choosing the Right Partner for Your Repointing Work

To guarantee quality workmanship, it is essential to call on experienced professionals. Maçonnerie Montréal, with its recognized expertise in Montreal, Laval, Longueuil, as well as on the South Shore and North Shore, offers repointing services tailored to each building, ensuring both energy efficiency and durability.

Key Steps for Effective Repointing

  1. Precise Diagnosis: Our team conducts a detailed analysis to identify areas requiring repointing.
  2. Choice of Materials: We select quality materials, suited to the local climate conditions and the nature of your masonry.
  3. Advanced Techniques: Our repointing methods are cutting-edge, ensuring impeccable finishing and increased durability.


Repointing is not just a means to restore the aesthetics of your building. It is a vital step to improve energy efficiency, reduce heating and air conditioning costs, and contribute to the preservation of our environment. Maçonnerie Montréal is your go-to choice for professional and climate-challenged repointing services in our region.

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