Water finds every crack and joint. Sika's engineered membrane systems stop it before it becomes a problem. We apply SikaProof sheet membranes and Sikalastic liquid coatings to foundations, plaza decks, balconies, and wet rooms across Laval. Every installation follows Sika spec, which means the system warranty covers both product and installation quality. Call for a free written estimate.
Sika has spent over 100 years refining waterproofing chemistry. The product line spans every scenario: pre-applied sheet membranes for foundation walls destined for backfill, liquid-applied systems for tight corners and penetrations, hybrid plaza-deck assemblies rated for foot and vehicle traffic, and specialized coatings for wet rooms and balconies.
We install as a Sika-system specialist, meaning substrate prep, primer selection, membrane thickness, and protection layer all align with Sika's published specification. That compliance is what activates the system warranty, which covers installation integrity alongside product performance.
We evaluate the substrate, exposure conditions, and project timeline to choose between SikaProof sheet (for backfill scenarios), Sikalastic liquid (for detail-heavy work), or plaza-deck hybrid (for traffic-exposed surfaces).
Prepare the concrete surface
The slab or wall is cleaned to Sika spec, existing cracks are repaired with compatible material, joints are isolated, and moisture testing confirms readiness before any primer is applied.
Apply primer and membrane
The Sika primer bonds to the prepped concrete, then the selected membrane (sheet or liquid) is applied to the engineered thickness, with all corners, joints, and penetrations detailed per Sika specification.
Install protection and document
Where required, a protection layer (drainage board, screed, or traffic surface) is installed over the membrane. The system is documented for warranty registration, and the project is handed off complete.
Warranty advantage
System Warranty Requires Installer Compliance
Sika's warranty is not just a product guarantee. When a Sika-system installer applies the membrane to Sika specification, the warranty extends to cover installation method and integrity. That distinction matters on commercial projects where water intrusion can shut down operations.
Integrate other Sika services on the same project: crack injection for pre-existing damage, repair systems for substrate restoration, and floor coatings for interior wet-zone protection. Coordinated Sika products simplify specification and warranty administration.
SikaProof vs Sikalastic, plaza decks, warranty and substrate prep.
SikaProof is a pre-applied sheet membrane for substrates that will be backfilled (foundation walls before backfill, blindside walls in tight excavations). Sikalastic is a liquid-applied membrane for tight detail work, plaza decks, balconies. We pick based on project specifics.
Yes, Sika has plaza-deck systems engineered for traffic-exposed waterproofing with protective wear surfaces. We install the full system including the protection layer that handles traffic without compromising the membrane.
System when installed by a Sika-system installer to Sika spec. That extends warranty beyond product replacement to cover install integrity, which is what commercial customers actually need.
Specific prep per system: surface cleanliness, moisture limits, crack repair, joint detail. The Sika spec defines the exact requirements; we follow them because skipping prep voids the system warranty.
Depends on system and area. Foundation walls can be done in days; plaza-deck systems with multiple layers stretch longer. The full schedule is in the quote.
SikaProof on a new foundation, full system warranty in our file. Three springs since, basement bone dry. Real long-term solution.
Q. X5
Property Owner, Laval
★★★★★
Plaza deck Sikalastic system on a commercial roof. Every joint detailed per spec, traffic surface installed properly. Holding through full traffic exposure.
Y. X5
GC, Montreal
★★★★★
Sika system on our wet-room area, every penetration detailed properly. No leak issues since install. The detail work made the system.
Z. X5
Facility Manager, Terrebonne
★★★★★
They explained Sika system warranty vs product warranty before quote. The value was obvious. System warranty paperwork came at handoff.
X. X5
Builder, Longueuil
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