15+ Years of Experience
Flexstone Waterproof Membrane Systems
Waterproof membranes often fail due to seams, poor adhesion, or inadequate UV protection.

Call (647) 607-4061 or scan for a free estimate on your project. We’ll provide a detailed quote at no cost.


Flexstone Waterproof Membrane Systems
Waterproof membranes often fail due to seams, poor adhesion, or inadequate UV protection.
Homeowners and property managers across Canada need durable, seamless waterproofing solutions that can withstand harsh weather conditions and heavy use.

What you get
- Seamless waterproof membrane that prevents leaks
- Professional installation on various surfaces including concrete, plywood, and existing membranes
- Multiple finish options including standard colors and textured stone finishes
- UV-stable top coat that protects against sun damage
- Slip-resistant surface for safety
- CCMC compliant materials for applications over living spaces

How it works
- We visit your property and inspect the area needing waterproofing. We discuss your needs, show finish options, and provide a detailed written estimate with specific recommendations for your situation.
- We prepare the surface by cleaning and repairing any damaged areas. We then apply the Flexstone base coat followed by intermediate layers according to the system requirements for your application.
- We apply the final top coat with your chosen finish option. We allow proper curing time before opening the area for use and explain maintenance requirements.
What we need from the client
- Clear access to the work area
- Removal of furniture, planters, or other items from the surface
- Information about previous waterproofing or coatings on the area
- Permission to use water and electricity on site if needed
What to expect
Most Flexstone membrane installations take 2-4 days to complete, depending on the size and complexity of the project. The surface typically needs 24-48 hours to cure before light foot traffic is allowed. Full curing and maximum durability are achieved after 7 days.

why choose us
Why clients trust our team

Red Seal Certified
Our masonry professionals hold Red Seal certification, proving they meet the national standard for skill and knowledge in the trade.
Experienced with heritage homes
We have specialized experience repairing and restoring masonry on older homes, carefully matching original materials and techniques.
Clean and respectful work
We protect your property during work and clean thoroughly each day, leaving your site tidy when the project is complete.
Quality materials and methods
Description: We use professional-grade materials and proven masonry techniques that stand the test of time and weather.
Clear, written estimates
We provide detailed written estimates before starting any work, with no hidden costs or surprise charges.
Customer satisfaction guaranteed
We listen to your needs and make adjustments until you’re completely satisfied with the finished work.

Faq
Everything you need to know before booking
What surfaces can Flexstone be applied to?
Flexstone adheres to nearly any substrate including concrete, plywood, fiberglass, vinyl, existing urethane membranes, and torch-on materials. Its versatile base coat creates a strong bond with these different surfaces.
What is the difference between System S and System X finishes?
System S is a standard finish with solid semi-gloss color coats available in four neutral options. System X is a textured stone finish with decorative acrylic chips broadcasted into a urethane top coat, creating a more complex appearance with added texture.
How long does Flexstone last?
When properly installed and maintained, Flexstone membranes can last 15-25 years or more. The UV-stable top coat and flexible base layers are designed to withstand Canadian climate conditions including freeze-thaw cycles and intense summer sun.
Can Flexstone be applied over existing coatings?
Yes. One of Flexstone’s advantages is that it can be applied safely over existing coatings including vinyl, fiberglass, and torch-on membranes. This eliminates the need for costly removal of old materials and reduces waste going to landfills.
Is Flexstone environmentally friendly?
Yes. Flexstone’s base coat is 100% solvent-free and water catalyzed. It can be applied over existing coatings, keeping old materials out of landfills. The UV stability and reflective nature of some finishes can also reduce energy costs by reflecting heat in summer months.
What kind of warranty comes with Flexstone?
Flexstone products come with manufacturer warranties that vary by system and application. Your installer will provide specific warranty information based on your project details and the system selected for your needs.
Call today for a free estimate on your Flexstone waterproofing project.
We serve the Greater Toronto Area and surrounding communities. Phone: (647) 607-4061 or fill out our online contact form for a response within one business day.
For quick questions about our services, email us at info@damionsmasonry.ca and we will reply within two business days.

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