Wet Rooms, Balconies, Below-Grade: Mapei Waterproofing in Gatineau
Mapelastic membrane plus Mapeflex joint detail creates a complete waterproofing system. We install both components, not shortcuts. Gatineau Concrete handles the full Mapei specification for tile-coordinated projects, exterior decks, and basement applications. Free written estimate.
A membrane alone cannot seal a corner. Mapelastic field coverage is only half the waterproofing story; Mapeflex tapes, sealants, and transition products handle every joint, drain, and penetration where water finds its way in. The two products are engineered to work together, and skipping either one guarantees failure.
We specify and install the complete Mapei waterproofing assembly. On tile projects where the same brand runs through adhesive, grout, and waterproofing, the warranty chain stays intact. We coordinate with Mapei repair products and Mapei SLU when the scope includes substrate prep or tile-bed work.
For projects specifying Sika waterproofing or Ardex waterproofing, we deliver those systems with equal rigor. The principle is the same: membrane plus detail, installed as a unit.
Recent work
Installation sequence
How Mapei Waterproofing Gets Installed in Gatineau
Assess the application
We identify which Mapei waterproofing product fits (Mapelastic Smart, AquaDefense, etc.), what Mapeflex detail products are required, and any tile-trade or adjacent-system coordination needed.
Prepare the substrate
Substrate is cleaned, cracks are repaired with compatible Mapei products, joints are isolated with Mapeflex tape or sealant, and the surface is ready for the membrane coat.
Apply membrane and detail
Mapelastic is mixed and applied to the specified thickness across the field. Mapeflex detail is installed at every corner, drain, penetration, and transition simultaneously, not as an afterthought.
Cure and finish
The waterproofing system cures per Mapei schedule. Protection layer or tile adhesive (often Mapei Kerabond) is applied per project spec, and the system is handed off ready for service.
The detail layer
Mapeflex Tapes and Sealants: Where Waterproofing Actually Succeeds
The Mapelastic field membrane is what you see; Mapeflex is what keeps water out. Every corner, drain, and transition gets the matched Mapeflex product. We never skip detail work to save time or cost because the field membrane alone fails at joints.
Mapelastic vs Mapeflex, tile-system path, system warranty.
Mapelastic is the field membrane; Mapeflex is the joint-detail family (tapes, sealants, transition products) that completes the system. Both are needed; using Mapelastic alone fails at the corners.
Often yes, especially when the tile installer is using Mapei adhesive and grout. The whole-system Mapei path keeps warranty paths clean. We install to that integration.
Yes, with the right Mapei system for the deck conditions. We confirm the spec, install with traffic-rated protection where required.
Yes, Mapei has below-grade systems. For most residential foundation work, see also foundation waterproofing for the non-brand-specific service.
Depends on area and detail count. Most projects take a few days through cure; large-scope work stretches longer. The schedule is in the quote.
Client reviews
What Gatineau Clients Say About Mapei Waterproofing
Full Mapei system on a tile shower install, my adhesive went over it cleanly, warranty path intact for the whole assembly. Trade-coordinated install.
Z. C6
Tile Contractor, Gatineau
★★★★★
Balcony waterproofing with Mapei system including the traffic-bearing protection. Two seasons in, dry below, surface holding. Real outdoor performance.
Y. C6
Custom Home Builder, Ottawa
★★★★★
Mapelastic plus full Mapeflex detail on every wet room across a building. Inspector signed off on the system warranty; documentation was complete at handoff.
Q. C6
Property Developer, Barrhaven
★★★★★
They never skipped the Mapeflex joint detail to save time, which is what every other contractor I have used does. The result is the difference.
X. C6
Renovation Contractor, Nepean
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