Exterior Waterproofing
Excavate to the footing, apply membrane and drainage board, then restore grade so water sheds away from the wall.
Explore the scope →North Shore waterproofing / rainfall systems
Basement and foundation waterproofing in North Vancouver
What protects the home is mostly hidden. Reveal the assembly beneath the finished grade, then trace how water reaches it during a North Shore storm.
AI concept visualization · not completed company workSurface / system reveal38% revealed
Finished gradeHidden assembly
01 / Site-ledThe property shapes the scope
02 / Water-path viewDrainage and walls considered together
03 / Honest boundariesNo diagnosis from a webpage
04 / Evidence-ledClaims stay within what is documented
Start with the symptom
The wet spot is a clue. Not the whole answer.
Select what you are seeing. The experience turns an interior observation into better documentation and a more useful on-site question—without pretending to diagnose the property online.
Concept property model / illustrativeDocument firstRainfall timing, affected room, and the nearest exterior discharge points.
Ask on siteWhere can water be concentrating before it reaches this interior area?
What are you seeing?
Begin inside. Then connect outside.
Connect the event to the route.
Note when the condition appears, how long it lasts, and whether roof or surface water is discharged near the affected side.
Explore the related exterior layer →Educational interaction only · not inspection, testing, or diagnosisServices
Protect the structure as one system.
Organize exterior membranes, interior drainage, perimeter drains, sump systems, crawlspace moisture control, and crack repair around how water actually reaches the property—not around a generic product list.
Interior Drainage Systems
Perimeter channels and vapour control that collect water at the slab edge and route it to a sump or daylight discharge.
Explore the scope →Sump Pump Systems
Primary pumps with optional battery backup to move collected groundwater out and away from the home.
Explore the scope →Crack Injection
Targeted polyurethane or epoxy injection to seal active or dormant foundation cracks.
Explore the scope →Moisture Assessment
On-site review of entry points, grading, drains, and finishes before anyone recommends excavation.
Explore the scope →Perimeter Drain Assessment & Repair
Assess footing-drain condition, cleanouts, discharge, and failure clues before deciding whether repair or replacement is warranted.
Explore the scope →Crawlspace Drainage & Moisture Control
Drainage, ground moisture, vapour, and sump planning for North Shore crawlspaces with damp soil, odour, or seepage.
Explore the scope →Interactive water-path lab
Change the layer. Change the question.
This visual does not diagnose a property. It demonstrates how a professional review can connect the whole path instead of treating the wet spot in isolation.
Primary questionWhere is roof water discharged?
On-site checkDownspouts, outlets, and slope
Concept diagnostic / not measurement
Trace one layer at a time.
Start above the wet area.
Roof collection and downspout discharge can concentrate water beside the foundation before it becomes a basement symptom.
Illustrative only · not inspection, drainage testing, or property assessmentMethod decision studio
Five systems. Five different jobs.
Compare where exterior membrane, interior drainage, perimeter drains, crawlspace control, and crack repair begin—and where each one honestly stops.
Comparison brief / educational
Rainfall-linked seepage, an overloaded sump, or an unclear footing-drain route
- What the scope should connect
- Symptoms, cleanouts, outlets, inspection access, discharge, and localized versus full replacement options are separated.
- Honest boundary
- A new drain does not automatically solve surface runoff, wall defects, window wells, plumbing, or groundwater from another path.
- Question worth bringing on site
- What evidence distinguishes blockage, damage, poor discharge, or another source?
How it works
From rainfall clue to defined scope.
A clear sequence creates a better property conversation without promising certainty before the site is reviewed.
- 01
Moisture assessment
Document exterior grade, roof-water routing, basement damp patterns, and any visible drains or sumps before comparing methods.
- 02
Method recommendation
Compare exterior membrane, interior drainage, sump, crack, or combined approaches against observed conditions and access constraints.
- 03
Written scope review
Confirm access, protection, discharge, restoration, exclusions, permits, hidden-condition allowances, and installer responsibilities in writing.
- 04
Closeout questions
Before hiring, ask how completed work will be documented, tested, maintained, and covered by the selected provider's written warranty.
Why this approach
Clarity before concrete.
The strongest trust signal is not an invented badge. It is a process that makes the reasoning, limits, and next step easy to understand.
Property before product
Start with rainfall, slope, access, and water path before discussing a membrane or repair method.
Whole-path thinking
Roof water, grade, wall details, and footing drainage belong in the same conversation.
Scope you can compare
Clear assumptions and exclusions help compare proposals without relying on vague promises.
Anatomy of a clear scope
Know what happens behind the wall.
Trust should be visible in the proposal, not borrowed from a badge. Open the rows to see what a comparable waterproofing scope should make explicit.
Bring us your property brief →Illustrative scope anatomy01 / 07 areas opened
For discussion only01Observed conditions+
State what was visible during the property review, what the homeowner reported, and which conditions remain unconfirmed.
02Access & protection+
Describe excavation access, utilities, temporary protection, working limits, and how adjacent finishes or planting will be handled.
03Wall preparation+
Explain cleaning, loose-material removal, crack or penetration treatment, and the substrate required before installation.
04Waterproofing assembly+
Name the proposed membrane and protection approach, transition details, and boundaries of the area being addressed.
05Drainage & discharge+
Separate existing and proposed drainage, gravel and filter assumptions, connection points, and the intended discharge route.
06Backfill & restoration+
Clarify backfill, compaction approach, surface grading, and what restoration is included or specifically excluded.
07Assumptions & exclusions+
Put unknown conditions, specialist responsibilities, permits, testing, and change-order triggers in writing.
Illustrative structure only. Not a quote, completed project, inspection result, warranty, or promised scope.
Service areas
Built for North Shore rain and grade.
North VancouverWest VancouverLynn ValleyDeep CoveCapilanoEdgemontLower LonsdaleUpper Lonsdale
Read full coverage notes →FAQ
Useful answers. Honest boundaries.
The planning process prepares the review—it does not replace one.
How much does basement waterproofing cost in North Vancouver?+
There is no responsible site-wide price. Access, wall length and depth, excavation, drainage routing, interior finishes, restoration, permits, and the selected method all affect a property-specific quote. Compare written inclusions and exclusions, not only the total.
How long does the work take?+
The schedule depends on access, wall length, excavation depth, interior protection, testing, restoration, weather, permits, and hidden conditions. Ask the selected provider for a property-specific sequence and written allowances before work begins.
Why do North Shore basements get wet?+
Heavy seasonal rainfall, hillside runoff, saturated soils, and foundations cut into slopes all raise hydrostatic pressure. Surface water from poor grade or short downspouts adds load. The right fix depends on whether water is coming through walls, the slab edge, a crack, or a failed drain path.
How should I evaluate waterproofing warranties?+
Warranty terms depend on the company performing the work. Ask for written coverage, exclusions, maintenance requirements, transfer conditions, and the legal entity responsible before authorizing work.
Can you waterproof a finished basement?+
Finished basements can sometimes be addressed with interior drainage or targeted work, but protection, demolition, patch-back, hidden damage, and access must be scoped. Exterior work may still deserve consideration when the water source is outside the wall.
What signs should I watch for?+
Seepage at the wall-floor joint, damp patches after storms, musty air, white mineral deposits (efflorescence), peeling paint, visible cracks with moisture, or a sump that never rests. Those symptoms help us prioritize, but the source still needs a site look.
Can gutters, grading, or perimeter drains cause basement moisture?+
They can contribute. Heavy rain, blocked or short roof drainage, surface water moving toward the home, and a failed or overloaded foundation-drain path can add water against the building. The City and District of North Vancouver publish drainage guidance, but the exact source still needs property-specific assessment.
Request a property review
Tell us where the water appears.
Share the essentials in one short request. The request is only confirmed after the system saves it successfully.
Call (778) 764-1440 ext. 210North Van Basement Waterproofing may contact you about this request. Your information stays with the brand unless you later give separate permission to share it with another business.