Basement excavation

Our comprehensive service paves the way for a spacious basement, enabling you to extend your home or create new accommodation. Even where space is limited, we have the expertise and skills to excavate your basement or crawl space, adding value to your property.

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We specialize in basement excavation

Our made-to-measure service transforms your basement into a spacious area, ideal for extending your home or creating new accommodation. With expertise in excavation even in restricted areas, we offer underpinning for expansion without impacting the existing structure, foundation repair for durability, piling for ground stabilization, drainage to avoid dampness and concrete slab pouring for a solid base.

These key interventions increase the value of your property by adding quality living space. When you entrust your project to us, you benefit from a complete service, guaranteeing meticulous execution in line with your expectations, enhancing the market value of your property with professionalism and precision.

Underfloor space with foundation

The creation of a crawl space with an underpinning foundation is an advanced technique for reinforcing the structural integrity of a building while creating additional space beneath the house. This method involves digging under existing foundations to create a crawl space, optimizing thermal insulation and ventilation, and preventing moisture problems. It offers a practical solution for accessing various installations and networks (plumbing, electricity, etc.), facilitating their maintenance.

Adopting this approach requires specific technical know-how, guaranteeing the building’s stability during and after the works. This not only improves the comfort and health of the home, but also increases its value by providing a solid, long-lasting foundation. This delicate process requires the expertise of a specialized team, ensuring safe and efficient completion.

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Faced with the challenges of construction and renovation, our team provides innovative and sustainable solutions. Whether it’s excavation, foundation repair or drainage improvement, benefit from our expertise to ensure the safety and longevity of your building. Take the first step with a free quote.

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What is underpinning?

Underpinning is a specialized construction method used to reinforce or extend the foundations of an existing building. This technique is often used when there is a need to increase living space by digging under or beside the existing foundations, without compromising the structural integrity of the building. This involves carefully supporting the building with temporary or permanent structures while the new foundation sections are built.

Underpinning is essential for basement extension projects, adding crawl spaces, or correcting foundation problems. It requires meticulous planning, in-depth knowledge of engineering techniques and precise execution, guaranteeing the safety and durability of the structure during and after the work. This approach not only preserves buildings, but also optimizes their space and functionality.

Frequently encountered problems

Water on foundations

The discovery of water in the foundations, both on the walls and on the ground, points to an urgent problem requiring fundamental corrections. If neglected, this infiltration can lead to harmful consequences, including :

Increased humidity in basements, leading to mold formation in the home;
The emergence of efflorescence in the form of whitish deposits;
And accelerated deterioration of concrete structures, compromising their durability.

Cracks in foundation walls

Cracks in foundation walls, emerging at various stages in the life of a building, threaten its stability due to the characteristics of the soil. These openings allow water to seep in, requiring precise repairs to ensure lasting watertightness. Repair from the outside is recommended to address the problem at its root, ensuring a more reliable solution in the long term.

Disaggregation and crumbling of foundations

When foundation concrete begins to disintegrate under the effect of water, this indicates a critical loss of its ability to support the structure. This situation calls for a major intervention, involving assessment by a structural engineer and partial or total replacement of the foundations, in accordance with current standards, to guarantee the building’s stability.

Cracks and lifting of concrete slabs

Cracking and heaving of concrete slabs in Montreal are mainly due to the poor construction and insufficient thickness of the old slabs, which were laid without a clean stone backfill. Stagnant water under the slab, exacerbated by freeze-thaw cycles, contributes to the growth of cracks and the lifting of concrete. The presence of pyrite in backfill can also exacerbate this phenomenon, underlining the importance of careful attention to soil composition during construction.

Groundwater accumulation and poor drainage

The accumulation of water on the ground, a sign of a deficient or absent drainage system, accelerates the deterioration of concrete structures. To protect the longevity of your foundations, it’s crucial to install a high-performance drainage system, suitable for all types of construction. This preventive measure avoids premature erosion and guarantees the stability and safety of buildings in bad weather.

Outdated interior finish

Major foundation subsidence has a direct impact on the aesthetics of a building’s interior, leading to difficulties in closing doors and windows, uneven floors and wall cracks. This damage can be seen in the cracking of paint and mouldings, an alarming sign of a foundation problem. Entrust the restoration of these inconveniences to us as experts in the field.

Do you have any questions about our company?

Are you wondering about the importance of underpinning to expand your living space? Or perhaps about how rebuilding foundations can secure your investment? For answers tailored to your specific situation, our team is ready to talk directly with you. Contact us today!