Services · North Vancouver
Exterior Waterproofing in North Vancouver
Exterior waterproofing excavates to the footing, prepares the foundation face, and installs membrane plus drainage board so water is managed before it reaches the wall. On North Shore hillside lots, access, retaining walls, and tree roots often shape what a realistic dig looks like - assessment maps that before a trench quote.
Who this is for
- Homes with chronic wall seepage where interior control will not stop the source
- Foundations with failed or missing exterior membrane on accessible walls
- Owners who can accept landscaping and hardscape disruption for a source-side fix
- Lots where grade and runoff clearly load the excavated side of the foundation
Stops water before it reaches the foundation when access and landscaping allow a full dig.
How the work typically runs
- 1
Access and scope map
We confirm which walls need excavation, what sits above the dig path, and how spoil and restoration will be handled on a hillside lot.
- 2
Excavate and prepare
Soil is removed to the footing where scoped. The foundation face is cleaned and prepared so membrane can bond or seat correctly.
- 3
Membrane and drainage
Waterproof membrane and drainage board go on; footing drain is placed or repaired where the scope calls for it, then backfill begins with attention to grade.
- 4
Restore and walkthrough
Grade is restored to shed water away from the wall. We review what was installed and what warranty language applies - in writing.
What influences cost
We do not publish fixed prices here. Access, wall length, soil, restoration, and discharge routing vary too widely on North Shore lots. These are the factors that usually shape an estimate:
- Wall length and depth of excavation
- Access for equipment versus hand dig on tight North Shore lots
- Retaining walls, tree roots, and hardscape restoration
- Footing drain condition and discharge routing
- Weather windows during rainy season
Questions about exterior waterproofing
Is exterior waterproofing always required?
No. Some basements need interior drainage, crack injection, or grade fixes instead. We recommend exterior digs when the wall needs membrane from outside - and say so when a narrower scope is enough.
Will you dig the whole perimeter?
Only when conditions warrant it. Many projects address specific walls. Scope is written after assessment, not assumed as a full ring trench.
How does hillside access change the job?
Steep banks, limited side yards, and retaining structures can force staged digs or hand work. That shows up in schedule and cost - we flag it early.