Exterior Waterproofing
Excavation and membrane application on the outside of the foundation wall — the most durable fix for persistent water intrusion.
What's Included
Included in this job
- Foundation exterior excavation to the footing
- Waterproof membrane application on the foundation wall
- Drainage board and footing drain installation or repair
- Proper backfill and surface grading correction
- Coordination with French drain installation where needed
- Site cleanup and restoration

Who It's For
Homeowners with a foundation that has ongoing or recurring water intrusion that interior sealing hasn't resolved.
For foundations dealing with ongoing water intrusion, exterior waterproofing addresses the problem at the source: excavating along the foundation wall, applying a waterproof membrane, and restoring proper drainage before backfilling. It's more involved than interior sealing, but it's the most durable approach for chronic moisture problems.
Common Questions
Exterior Waterproofing FAQ
Why would I need exterior waterproofing instead of an interior fix?
Interior sealing manages water after it reaches the wall. Exterior waterproofing stops it from reaching the wall in the first place — it's the more durable option when water intrusion is persistent or the interior approach hasn't held.
How disruptive is exterior waterproofing to my yard/landscaping?
Excavation along the foundation does disturb the immediate area — we'll walk through the scope and expected footprint before starting, and restore grading and surface conditions once the work is complete.
Need Exterior Waterproofing?
Tell us what you're seeing — we'll diagnose the water source and give you an upfront, written estimate.