Straight answers on waterproofing.

Basements require a combination of solutions to prevent water ingress: crystalline waterproofing applied to concrete walls and floors, membrane waterproofing for exterior foundation walls, and proper drainage systems such as French drains and sump pumps.

It depends on the method. Crystalline waterproofing is permanent, as it integrates with the concrete. Liquid membranes last 5–15 years depending on quality and maintenance. Sheet membranes last 10–25 years depending on material and installation.

At the beginning of the construction project. This ensures protection that guarantees durability and extends the lifespan of the structure.

Yes. Waterproofing can be retrofitted to both intact and damaged structures. For remedial work we diagnose the cause of existing leaks and damage, then implement solutions to restore concrete integrity, including drainage improvements to divert water away from the structure.

Costs vary with the type of system, the size and condition of the structure, and the level of water exposure. A site inspection is required to determine the most cost-effective solution.

We assess the structure’s purpose, exposure conditions, hydrostatic pressure, substrate type and project budget to recommend a tailored solution.

Not always. Integral crystalline waterproofing actually enhances strength by filling voids and reducing permeability. Membranes and coatings do not affect structural strength but do protect against water damage.

Lagos has a high water table, meaning underground water exerts constant pressure on structures. Without adequate waterproofing, seepage, rising damp and structural damage can occur. Integral crystalline waterproofing and effective drainage are essential.

Waterproofing does not stop cracking, but it prevents water penetrating cracks. For crack resistance, proper mix design, reinforcement and curing should be used alongside waterproofing.

Expert solutions tailored for Nigeria’s climate and high water table conditions, proven technologies with long-term durability, professional installation by certified applicators, and comprehensive services including dewatering and drainage.

Timelines vary with size, complexity, chosen system and curing requirements. We provide detailed project schedules after assessment.

By preventing moisture penetration it stops rebar corrosion, concrete spalling, efflorescence and thermal fluctuation damage — directly adding decades of structural life.

Integral waterproofing is ideal for new concrete pours, protecting throughout the concrete matrix from the inside out, simplifying application and providing self-sealing properties.

Dewatering removes excess groundwater or surface water from a site, especially below-grade or foundation areas. It prevents water weakening foundation concrete, delaying construction or flooding the site, creating a dry, stable environment for safe excavation, concrete placement and waterproofing.

Tailored solutions including sump pumping, wellpoint systems and drainage planning. We assess site groundwater conditions and recommend the best strategy to keep it dry during and after construction.

We assess soil permeability, groundwater table level, excavation depth and project timeline, then select the most effective method — typically wellpoint systems for shallow depths or deep wells for deeper excavations.

Before excavation or foundation work begins, to avoid delays, collapse risks and water ingress issues affecting concrete integrity and site safety.

Yes. We specialise in challenging ground conditions, with systems designed to manage high inflow rates and site-specific hydraulic pressure.

Yes. Our systems are designed for continuous operation with proper maintenance, ensuring consistent groundwater control throughout excavation or foundation works.

Yes. Our below-grade construction package combines dewatering with integral crystalline waterproofing using KIM, so your structure is dry during construction and protected for life.