Water finds every crack and joint. Sika waterproofing systems stop it before it reaches the slab, foundation, or finished space below. We install SikaProof sheet membranes for below-grade work and Sikalastic liquid coatings for detail-heavy applications, balconies, and plaza decks. Every installation follows Sika spec so the system warranty covers both product and method. Free written estimate, firm timeline.
Sika has spent over 100 years refining waterproofing chemistry. The product line spans pre-applied sheet membranes (SikaProof) for foundation walls and blindside applications, liquid-applied systems (Sikalastic) for tight corners and penetrations, and engineered plaza-deck assemblies that handle foot and vehicle traffic without membrane failure.
We install as a Sika-system specialist, which means substrate prep, primer selection, application thickness, and protection layer all match Sika's published specification. The system warranty depends on that compliance; we deliver it on every project.
We assess the substrate, exposure (backfill, traffic, wet room), and project sequencing to select the right Sika system. SikaProof sheet for below-grade, Sikalastic liquid for detail work, or hybrid for plaza decks.
Prepare concrete per Sika spec
The slab or wall is cleaned, dried to moisture limits, cracks repaired with compatible material, and joint areas isolated. Sika spec defines exact prep; we follow it because shortcuts void warranty.
Prime, apply, and detail membrane
Sika primer is applied to the prepped substrate, then the membrane (sheet or liquid) is applied to engineered thickness. Every corner, joint, and penetration is detailed per Sika specification.
Install protection and document
Protection layer (drainage board, screed, or traffic surface) is installed where required. The system is documented for Sika warranty support and handed off with full paperwork.
System warranty
Why Sika System Warranty Matters More Than Product Warranty
Sika warranty is a system warranty, not just a product warranty. It covers the membrane itself and the installation method. That distinction matters because water leaks through bad prep or poor application, not through bad material. System warranty means Sika backs the whole assembly when installed by a certified installer to spec.
On multi-product projects, coordinate Sika floor systems and crack injection so all Sika products work together. The system warranty extends across the full scope when everything is spec-compliant.
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, Oshawa
★★★★★
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, Toronto
★★★★★
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, Brampton
★★★★★
They explained Sika system warranty vs product warranty before quote. The value was obvious. System warranty paperwork came at handoff.
X. X5
Builder, Mississauga
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