Pyrite Removal: An Important Issue
There was a time when pyrite used to contaminate the ground under basement floors and garage slabs in the Montréal area. This increasingly well-known mineral has the unfortunate property of swelling in the presence of moisture and oxygen. This swelling exerts pressure on the concrete slab to the point of lifting it, creating cracks and a deformed floor.
To solve this problem, we need to remove the concrete slab, extract the ground underneath and remove the pyrite. Once we complete the extraction process, we can install and properly level DB-certified (pyrite-free) backfill. Moreover, we put in place insulation along the exterior perimeter, as well as under the new slab. We add a vapor barrier under the new slab, and finalize the work by pouring a new slab.
We always advise removing pyrite since there are potential risks associated with this mineral.
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SATISFIED CUSTOMERS
« Courteous and professional employees. I hired them for cracks in the foundation of my house. The work they did was of A1 quality, and was done very cleanly! I would recommend this company to everyone. »
Annie-Pier Massé« Very professional. Short time between the call and the appointment. We had several cracks in the foundation and they quickly came to repair everything. »
Claudio Bustos« Always available to answer our questions. »
France Trachy« Very professional team, no more problems! I was well advised for the repairs done in our house. »
Patrick Fontanals« A competent team that works neatly. I recommend them to everyone. »
Annie Masse« I contacted the company in the spring and Jean Felix showed up at the agreed time. My problem consisted of a concrete slab that was allowing groundwater to seep into the basement in the spring. This was a major challenge because the water [...] »
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