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Waterproofing
Reliable waterproofing systems for long-term structural protection.
Engineering Excellence in Waterproofing
Thobal protects structures with engineered waterproofing systems for roofs, basements, wet areas, and below-grade structures. Our specialist teams install liquid-applied membranes, sheet membranes, cementitious coatings, and crystalline systems selected for each exposure condition — with a fully documented warranty-backed installation. Every application follows strict substrate preparation, primer, and membrane installation procedures, verified by flood testing and leak detection to deliver a dry, protected structure for decades of service.
Why Clients Choose Thobal
- Engineered systems for roofs, basements, and wet areas
- Liquid-applied, sheet, and crystalline membrane specialists
- Flood and leak testing verification on every installation
- Full substrate preparation and detail membrane installation
- Warranty-backed, documented application records
- SBC compliance for below-grade and high-moisture zones
Scope of Work & Deliverables
Dedicated engineering supervision and full-scope execution across every stage of waterproofing.
Waterproofing covers roofs, basements, wet areas, and plant rooms using liquid-applied, sheet, cementitious, and crystalline systems, with expansion joint detailing and sealant installation after strict substrate preparation and priming.
Each installation is verified by flood testing, electronic leak detection, and documented inspection before cover works, backed by warranty-backed materials for decades of dry, protected service in commercial, residential, and industrial buildings.
Execution follows a sequenced membrane methodology — substrate preparation, priming, base and detail membranes at penetrations and upstands, and protection layers — with layer-by-layer inspection before any cover works. Quality assurance combines flood testing, electronic leak detection, and photographic documentation at each stage, while safety governs confined-space entry, hot work, and chemical handling. Deliverables include warranty-backed application records, test certificates, as-built membrane plans, and maintenance guidance for long-term structural protection.
Roof Waterproofing
Liquid-applied and sheet membrane systems for exposed and protected roofs with expansion joint detailing.
Basement & Below-Grade Systems
Negative- and positive-side waterproofing with drainage layers for basements, lift pits, and retaining walls.
Wet Area Waterproofing
Bathroom, kitchen, and plant-room waterproofing with membrane detailing at floor-wall junctions and penetrations.
Cementitious & Crystalline Systems
Cementitious coatings and crystalline waterproofing for concrete structures and water-retaining elements.
Expansion Joint & Detail Sealing
Engineered expansion joint systems, flashings, and sealant detailing at all critical movement locations.
Testing & Verification
Flood testing, electronic leak detection, and documented inspection at each membrane layer before cover works.
Execution Process
A structured delivery roadmap ensuring milestone accuracy from initial consultation to project commissioning.
Consultation
We begin with a deep understanding of your project requirements, site conditions, and programme objectives through detailed consultation and feasibility assessment.
Planning
Our engineering team develops a comprehensive project execution plan, including methodology, resource allocation, procurement strategy, and risk mitigation measures.
Engineering
Detailed engineering design, BIM modelling, and constructability reviews ensure every element is optimised for performance, cost-efficiency, and buildability.
Construction
Skilled execution by our experienced workforce, with rigorous quality control, safety management, and programme tracking throughout the construction phase.
Quality Inspection
Comprehensive inspection and testing protocols verify that every deliverable meets the specified standards before proceeding to the next stage.
Project Handover
Systematic commissioning, documentation, and client training ensure a seamless handover with full operational readiness and aftercare support.
Frequently Asked Questions
Common technical and commercial questions regarding waterproofing execution.
Let's Build Your Next Landmark Project
Our engineering consultation team is ready to analyze your requirements and provide tailor-made proposals.