Foundation Crack Repair – Fissure Expert
Over the years, Groupe Fissure Expert has acquired solid experience in the field of repairing cracks in foundations, concrete foundations, or walls. Our professional expertise has allowed us, therefore, to repair thousands of cracks in concrete foundations. In addition, we work closely with insurers, disaster recovery companies, financial institutions, entrepreneurs and individuals to support you in all your efforts.
The reputation of Groupe Fissure Expert makes it a must in the repair of foundation cracks of any type, by injection or other process adapted to your situation, thanks in particular to our unique know-how in the field.
The mission of Groupe Fissure Expert
Groupe Fissure Expert’s mission is to guide our customers towards the best possible choices before carrying out foundation crack repairs that will ensure the reliability and waterproofing of your home. It is with this vision that we make every effort to ensure the best possible service for our customers.
The success of our company
The company’s success is based as much on our expertise as on the values transmitted to our staff: the concern for a job well done, as well as the desire to meet all the needs of our customers with respect and courtesy: this is our number one commitment.
Repair of cracks and water infiltration
At Fissure Expert, we have many solutions and techniques to respond favorably to all your water infiltration problems, because cracks no longer hold any secrets for our company.
Our solutions against foundation cracks:
Our Crack Repair Expertise
You will be able to take advantage of all the expertise of the Fissure Expert Group and see all the difference in quality that exists on our foundation crack repairs! For any question or repair on the cracks in your home, contact one of our experienced technicians at Groupe Fissure Expert inc.
Fissure Expert Group’s guarantees
The guarantee of a job well done is one of the major concerns of the Fissure Expert Group, and it is for this reason that we give you the best of ourselves every day. In addition, we offer a 10-year transferable WRITTEN WARRANTY on all our foundation crack repairs made with high-pressure injection of flexible polyurethane.*


Crack Injection Services by Fissure Expert
Fissure Expert is a company specializing in waterproofing and repairing foundation cracks throughout Montreal, on the North Shore and the South Shore. Before any basement waterproofing , a well-done foundation repair remains essential. Our team studies your structure and offers you the most durable and economical solution according to the situation: interior, exterior, epoxy or polyurethane injection.
Polyurethane injection
Polyurethane, a fast-setting elastomer, is used to seal cracks that are alive or subject to low seasonal movements. Its property of swelling in the crack allows it to block infiltration even in the presence of water. Although it does not provide structural strength, it is perfect for most residential homes that mainly need waterproofing.
Interior Crack Injection
Interior injection is a technique that allows you to repair a foundation crack without excavation. After inspection, our experts choose the appropriate resin to block water and stabilize the foundation. It’s often the fastest, cleanest, and most cost-effective solution for a permanent basement repair.
Exterior Crack Injection
If external access is possible, Fissure Expert favours external injection, as it solves the problem at the source. Although more invasive, this method removes hydrostatic pressure on the foundation wall and provides the best protection against infiltration. It is ideal for resealing in a preventive and sustainable way.
Epoxy injection
Epoxy injection is recommended when the crack endangers the structure of the concrete. The epoxy resin seeps into the crack, restoring the foundation’s initial strength and protecting the rebar. This method is recommended when a solid structural repair is required, especially as an alternative to replacing concrete sections.
Frequently Asked Questions (FAQs) – Foundation Crack Repair by Fissure Expert
Is a foundation crack still dangerous for my home?
Not always, but any crack must be assessed.
Some are only aesthetic, others can allow water infiltration, weaken parts of the concrete or reveal a more serious problem. With thousands of repairs under our belt, our technicians can quickly assess the severity of the crack and the appropriate solution.
Can you seal a crack from the outside without digging up the entire ground?
Yes, if the access around the building allows it.
An external injection makes it possible to treat the crack at the source, to reduce the hydrostatic pressure and to ensure maximum protection against infiltration. But when excavation is impossible, our interior solutions remain very efficient for waterproofing.
How often should I check the foundation of my house?
An annual visual inspection is advised, especially after the freeze-thaw period.
Quickly detecting a crack, water infiltration or a small deterioration avoids heavier and more expensive work. If in doubt, our specialists can carry out a complete inspection of the foundation.
Does Fissure Expert only repair foundation cracks?
No. Our company has extensive expertise in different types of concrete interventions:
- Cold Joint Repair
- Repair of cracks on slabs
- Repair of cracks at window corners
- Infiltration plugging around formwork rods
- Elevator pit repair and maintenance
- Repairing holes in concrete
- Interior French drain installation and repair
This variety of services makes us a total ally against water infiltration.
Can an injection solve constant water infiltration?
yes. Carried out with the right resin (epoxy or polyurethane as the case may be) and by professionals, injection is one of the most effective and long-lasting solutions to stop infiltration.
Cracks no longer hold any secrets for Fissure Expert with our proven methods and specialized equipment.
Do you do free estimates or quotes?
yes. Contact us or fill out our online form for a free quote. We study your case and offer you the safest and most economical solution to secure your property.
Epoxy or polyurethane injection?
These two resins meet very different needs:
Epoxy is used to restore structural strength to the concrete It seals the crack and restores the solidity of the foundation.
Polyurethane, on the other hand, is perfect for sealing living cracks or cracks that move slightly. It stops water even if it seeps in and expands quickly into the crack
Our technicians will advise you on the most suitable solution according to the type of damage observed.
