Services

Waterproofing for North Shore cut-face basements

Practical paths from moisture assessment to exterior membrane, interior drainage, perimeter drains, and crawlspace moisture control. Each detail page covers who it is for, how the work typically runs, what drives cost, and common questions. Start with the service that matches your situation, or request an estimate if you are unsure.

Contextual stock photo, not a North Van Basement Waterproofing project. Danist Soh / Unsplash

Exterior Waterproofing

Excavate to the footing, apply membrane and drainage board, then restore grade so water sheds away from the wall.

Source-side membrane when the dig path is realistic on a cut-face lot.

Exterior waterproofing addresses water at the outside foundation face. A responsible scope can cover excavation limits, surface preparation, membrane, drainage board, footing-drain work, backfill, and final grade. On constrained or sloped North Shore lots, access, roots, retaining structures, utilities, and restoration assumptions should be documented before a trench price is compared.

Full details, process, and FAQs →

Interior Drainage Systems

Perimeter channels and vapour control that collect water at the slab edge and route it to a sump or daylight discharge.

Perimeter control when excavation is limited or finishes must stay.

Interior drainage manages water after it reaches the foundation. A typical scope may place a perimeter channel at the slab-wall junction, connect it to a sump or approved discharge, and address vapour control where finishes allow. It can be considered when exterior access is limited, but it does not replace source-side membrane work in every situation. The proposal should state that trade-off clearly.

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Sump Pump Systems

Primary pumps with optional battery backup to move collected groundwater out and away from the home.

Active removal and discharge planning when gravity is not enough.

Sump systems collect water from interior drains or footing lines and move it toward an approved outlet. Review questions include basin and pump capacity, check valves, power-loss backup, alarm options, and whether the discharge route reloads the foundation. Frequent cycling can also justify investigating the water feeding the pit rather than assuming the pump alone is the problem.

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Crack Injection

Targeted polyurethane or epoxy injection to seal active or dormant foundation cracks.

Targeted seal when a discrete crack is the entry path.

Not every wet basement needs a full dig. When a discrete crack is the confirmed entry path, injection may form part of a targeted repair. Material choice depends on crack condition, movement, moisture, and the intended repair. Injection is not a substitute for failed drainage, surface-water, or broad wall-seepage problems, so the surrounding foundation still needs context.

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Moisture Assessment

On-site review of entry points, grading, drains, and finishes before anyone recommends excavation.

Source map before anyone recommends excavation.

A moisture assessment should connect exterior grade and roof drainage with interior damp patterns, cracks, drains, sumps, and discharge routes. Photos and storm-timing notes can improve the first conversation, but they do not establish the source or replace safe access, testing, and an on-site review by the appropriate professional.

Full details, process, and FAQs →

Perimeter Drain Assessment & Repair

Assess footing-drain condition, cleanouts, discharge, and failure clues before deciding whether repair or replacement is warranted.

Foundation-drain investigation before deciding between maintenance, repair, and replacement.

Perimeter or footing drains are one part of the foundation water-management system. Investigation considers where the line runs, whether cleanouts or outlets can be identified, how symptoms change during rainfall, and whether excavation, inspection, cleaning, localized repair, or replacement deserves further evaluation.

Full details, process, and FAQs →

Crawlspace Drainage & Moisture Control

Drainage, ground moisture, vapour, and sump planning for North Shore crawlspaces with damp soil, odour, or seepage.

Bulk-water and ground-vapour planning for damp North Shore crawlspaces.

A damp crawlspace can involve surface runoff, foundation seepage, plumbing, groundwater, exposed soil, or several paths at once. Assessment maps bulk water separately from ground vapour, then considers drainage, sump, ground cover, ventilation, and material cleanup as distinct parts of the scope.

Full details, process, and FAQs →