Keeping Water Out with Sika Waterproofing in Gatineau
Below-grade foundations, exposed plaza decks, balconies, and wet rooms all demand waterproofing that stops water before it becomes a problem. Sika's membrane and coating systems are engineered for these exact conditions. Gatineau Concrete applies SikaProof sheet membranes and Sikalastic liquid coatings as a certified Sika-system installer, meaning every step from substrate prep through protection layer follows Sika's engineering spec. Free written estimate on every project.
Sika's Waterproofing Approach Starts with System Design
Sika doesn't sell individual products; it sells complete waterproofing systems. Each system is engineered for a specific exposure: SikaProof sheet membranes for foundation walls that will be backfilled, Sikalastic liquid membranes for tight corners and detail work, hybrid plaza-deck systems for traffic-exposed surfaces, and specialty formulations for wet rooms and balconies. The system approach means every component works together, and the warranty covers the whole assembly.
We install as a Sika-system specialist, which means substrate prep, primer selection, membrane application thickness, and protection layer all follow Sika's published spec. That compliance is what activates the system warranty. Sika's warranty extends beyond product replacement to cover installation integrity, which is what matters on long-term commercial projects.
We evaluate the concrete surface, exposure conditions, and project sequencing to select the right Sika system. SikaProof sheet works for backfilled walls; Sikalastic liquid handles detail-heavy areas; plaza-deck systems handle traffic loads.
Clean and prepare per Sika spec
The concrete slab or wall is cleaned to remove dust, laitance, and contaminants. Cracks are repaired with compatible material, joints are isolated, and moisture testing confirms the substrate is ready for primer.
Apply primer and membrane
The Sika primer is rolled or sprayed onto the prepped concrete. Once cured, the membrane (sheet or liquid) is applied to the engineered thickness, with all corners, penetrations, and joints detailed per Sika spec.
Install protection and document
A protection layer is installed where required (drainage board, screed, or traffic surface). The system is photographed and documented for warranty support, then handed off with full Sika system paperwork.
System warranty
Why Sika System Warranty Matters More Than Product Warranty
A product warranty covers the membrane or coating itself. A system warranty covers the entire assembly, including installation method, substrate prep, and protection layer. Sika's system warranty is only valid when a certified Sika-system installer follows Sika spec. That's the difference between a replacement membrane and a guarantee that water stays out.
On multi-phase projects, we integrate crack injection before waterproofing, repair mortars for substrate conditioning, and floor systems for finished surfaces. Each service is spec-compliant and documented for warranty.
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.
Client reviews
What Gatineau Clients Say About Sika Waterproofing
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, Gatineau
★★★★★
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, Ottawa
★★★★★
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, Barrhaven
★★★★★
They explained Sika system warranty vs product warranty before quote. The value was obvious. System warranty paperwork came at handoff.
X. X5
Builder, Nepean
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