Trusted Experience
With over 20 years of experience, Solage Solide has established a reputation for excellence in pyrite removal services in Montreal.
Pyrite Removal Services in Montreal
Is your basement or garage floor cracked due to pyrite? Solage Solide specializes in removing pyrite and restoring your foundation’s integrity. Contact us today for a free evaluation.
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What Is Pyrite?
Pyrite, also known as “Fool’s Gold,” is a sulphide mineral commonly found in sedimentary rock used to make crushed stone for backfill, that goes under your foundation or garage floor. When exposed to moisture and oxygen, pyrite oxidizes, producing sulfuric acid. This acid reacts with the calcium carbonates found in the concrete, leading to a chemical reaction called sulfation, which causes the concrete to swell and to crack and lift.
What does Sulfation do to concrete?
Sulfation causes the concrete slab itself to swell and crumble. It can produce swelling up to 15 cm. The foundation walls restrain horizontal expansion, so heaving usually occurs upwards from the center of the slab, creating large bulges.
Is my Montreal house affected by pyrite?
The majority of cities affected are located in the Montérégie area and on the island of Montreal. For residential buildings constructed before 1970, the layer of crushed stone is either non-existent or quite thin. This is why we see very few pyrite-related concerns for buildings constructed prior to 1970.
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Reliable Warranty
We offer a robust warranty on our pyrite removal services, giving you confidence that your foundation will remain stable for years to come.
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Professional Service
As a family-owned business, we pride ourselves on providing the best solutions to keep your property safe and secure.
Pyrite Removal Process
Here are some common procedures and best practices for pyrite removal:
- Remove interior partitions and false wood floors
- Break up and remove the concrete slab
- Excavate existing pyrite backfill
- Repair the foundation cracks from outside by epoxy or polyurethane injection
- Backfill with DB certified crushed stone
- Place a geotextile on undisturbed soil
- Install a polyethylene vapor barrier
- Pour a new reinforced concrete slab
Pyrite is the problem
Solage Solide is the solution!
Time for a foundation intervention, our team of pyrite experts is available to answer any of your questions.
Frequently Asked Questions
Pyrite is a sulphide mineral found in sedimentary rock that expands when exposed to moisture and oxygen, causing concrete to crack and lift.
Pyrite can cause your foundation to crack and lift, compromising the structural integrity of your home.
Signs of pyrite damage include cracks in the foundation, lifting floors, and white powdery residue on the floor.
The process involves removing the contaminated gravel, repairing foundation cracks, and replacing the gravel with certified DB stone.
Municipalities Served
We offer our foundation repair services around the Greater Montreal area.
Select your municipality to discover how Solage Solide can assist you with foundation repairs, waterproofing, and more. You’ll also find contact information for our local experts who are ready to help with your specific needs.
- Baie-D'Urfe
- Beaconsfield
- Côte Saint-Luc
- DDO
- Dorval
- Hampstead
- Hudson
- Île-Bizard
- Île-Perrot
- Kirkland
- Lachine
- LaSalle
- Les Cèdres
- Montreal West
- Notre-Dame-de-l'Île-Perrot (NDIP)
- NDG
- Nuns' Island
- Outremont
- Pierrefonds-Roxboro
- Pincourt
- Pointe-Claire
- Saint-Lazare
- Sainte-Anne-de-Bellevue
- Senneville
- Terrasse-Vaudreuil
- Town of Mount Royal (TMR)
- Vaudreuil-Dorion
- Ville Saint-Laurent
- Westmount
- Ahuntsic-Cartierville
- Verdun
- Sud Ouest
- Chomedey
- Fabreville
- Laval-Ouest
- Sainte-Dorothée
