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Joint Seal is a Toronto-based company specialised in thin patch applications and polyurea-based coating which protects floors against acidic substances and mechanical intrusions.
Industrial-strength concrete adhesives allow us to perform concrete restoration instead of recasting the slabs.


Our Services

Utility Room Waterproofing

We offer a full range of repair and waterproofing solutions for utility rooms, including concrete crack repair and patching of all surfaces – ceiling, walls, and floors.

Our durable polyurea-based waterproofing membranes, used as a top coat, protect the floor while providing a nice-looking,
easy-to-clean finish.

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Lasting Repairs Guaranteed

Our specialised industrial-strength materials have been tested to the MTO standards to last 25 years, which ensures durable waterproofing.


Application Benefits

Why Utility Room Floors Fail

Concrete floors in utility and mechanical rooms can degrade rapidly because of acidic substances, while garbage room floors are subject to heavy traffic and can be damaged when bins are repeatedly moved across their surface.

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Our Solutions

Crack Repair
Thanks to monolithic adhesion provided by our products,
we are able to do extensive crack repair, fully restoring concrete surfaces.


The use of specialised, industrial-strength materials permits patches as thin as 5 mm, which minimises demolition and allows for floor levelling.

Polyurea Waterproofing Membrane
This specialised waterproofing membrane covers large areas quickly, ensuring long-lasting protection.

Application Benefits

Cost Savings
Our specialised methods and materials ensure durable results, making repeat repairs unnecessary.

Shorter Closures
Thanks to efficient repair methods - including instant surface bonding - there is no need to shut machinery down and remove it for excessive periods of time.


Ease of Maintenance
Our top coating produces an easy-to-clean, smooth surface that does not stain or get scratched easily.

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Call us at (647) 479-4069 or

ask for a Free Quote! 

If you are looking for durable waterproofing results and full protection against acids and mechanical intrusion.
Repair Methods


Surface Preparation

The floor is shaved to remove paint and any other contaminants or oils – having clean and exposed concrete is a must  in order to ensure proper installation.

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Concrete Patching

All loose unsound concrete is removed, and concrete surfaces are cleaned in preparation for patching and restoration.
The area is then coated with an adhesive, and a patch is installed.

Crack Repair

Cracks are prepped and treated with specialized, industrial-strength adhesive. They are then filled with polymer cement and a waterproofing primer.

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Surface Finish

Primer is applied when repairs are completed to ensure proper membrane installation.

Polyurea Membrane
This specialised waterproofing membrane covers large areas quickly, ensuring long-lasting protection.

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Call us at (647) 479-4069 or

ask for a Free Quote! 

Polyurea-based waterproofing membranes ensure lasting waterproofing and excellent protection.


Garbage Room Floor Repair

Q: Our compactor room floor is very damaged – can it be fixed?
A: Yes, we can restore even highly damaged floor surfaces by following our specialised methods and using industrial-strength materials. The use of our adhesive allows us to do extensive crack repair and patching, as it ensures that new concrete will adhere to the original surface.

Utility Room Floor Replacement?

Q: Our boiler room floor is damaged because of chemicals and oil – does it have to be rebuilt?
A: No, we can fully restore it with our specialised methods and materials. Our adhesive makes it possible to do extensive patching and repair multiple cracks. This way the floor can be restored without having to be replaced.

Minimizing Future Damage

Q: What can be done to minimize future damage?
A: After patching and crack repair are complete, if needed, we apply a polyurea-based waterproofing membrane that ensures lasting protection.

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