Repair Types

Crystalline Waterproofing

Joint Seal Waterproofing is a company based in Toronto, specializing in crystalline waterproofing.  Our services cover a vast geographical area, from Hamilton to the City of Toronto, and the surrounding GTA communities.

Our Crystalline Waterproofing Services

Crystalline application works best on damp concrete slabs with aged porous structure. As concrete loses its density, as a consequence, its loading capacity and water resistance are affected. The best way to improve a slab’s density is to treat it with crystalline. This material is designed to organically grow crystals which repair and rehabilitate areas of low density. Following the crystalline application, the concrete slab gains strength and water resistance. This treatment will greatly reduce future cracking of the slab. 

The unique qualities of crystalline allow it to become reactivated for many years to come. Every time the concrete starts leaking again due to normal deterioration, this material is reactivated to increase the density of the affected areas.

Crystalline – at Work When Needed

Repair Methods

Before the crystalline cementitious powder is applied, the concrete surface is shaved to expose its pores to ensure optimal penetration. Specialized moisture-retaining paint is used on top, to prevent the crystalline from drying out prematurely. 

Crystalline coating cannot be finished off with regular paint. Specialized top coat paint not only provides the necessary barrier against moisture evaporation, but also acts as a decorative finish - it comes in white and gray (an alternative to a more expensive black paint).  

Crystalline applications are best done at minimal thickness (1-2 mm) and for sealing small hairline cracks. Its crystals simply fill in those cracks, making it unnecessary to open a very fine crack in order to repair it. Such applications are ideal for damp walls and ceilings - they prevent moisture from accumulating and becoming trapped in concrete slabs.

In Our Clients’ Words

Satisfied Customers at TCC1151

When different areas of our parking garage need waterproofing and repairs, we keep going back to Joint Seal Waterproofing – their methods have proven to be long-lasting. It’s been several years since the first repairs they did for us, and there has been no further leaking on those surfaces.

It is normal for concrete to deteriorate with time, and as it ages, it starts losing its density. This affects its resistance to water penetration from the environment, so it starts leaking. One of the applications Joint Seal does to restore concrete’s original capacity is treating it with organic crystalline. This material is designed to basically soak up the humidity, making the concrete surface more compact again and more resistant to cracking (and leaking).

The best part – when a surface that had been treated with crystalline starts leaking again due to normal deterioration, this material is reactivated to increase the density of the affected areas.  It’s a great way to ensure more efficient parking garage maintenance, and we are very satisfied with Joint Seal’s work.

Property management team, TCC1151

Satisfied Customers at Pro-House Management Limited

In the past, we’d had several different companies come in and do waterproofing in our parking garage, but soon afterwards the surfaces would start leaking. A very different experience with Joint Seal Waterproofing – their repairs actually last!

It turns out that besides doing crack repair and patching, when necessary, they also do crystalline applications. As they explained to us, this material is applied to older concrete surfaces to rehabilitate them by absorbing the humidity. Crystalline reactivates, becoming effective again, even when the same concrete starts leaking again, as it ages.

We are grateful to Joint Seal for keeping our parking garage surfaces leak-free and for their professionalism. Their well-trained crew members not only do their work diligently but also have a great proactive attitude. We know who to call if any other area of our building needs waterproofing or concrete repairs in the future.

Property Manager, Pro-House Management Limited

About Us

Joint Seal Waterproofing, Inc.

Our Contacts

22 Jutland Rd, Unit C
Toronto, Ontario, M8Z 2G9

Phone: (647) 479-4069
US/Canada Toll Free: 1-855-561-4416