Ashburn, Virginia · Exterior basement waterproofing work-order review. This page summarizes a closed job record; it is not a photo-verified case study.
What does an exterior waterproofing scope actually include? On this Ashburn project, the work order lists wall access, surface preparation, waterproofing layers, a footing-drain line item, and backfill. The original customer complaint is not described in the available request, and we do not have same-job construction or finished-condition photographs for this page.
What did the Ashburn work order specify?
The closed record lists approximately 38 linear feet of exterior foundation-wall work and a separate 45-foot footing-drain item. Its line items describe:
- Excavation to expose the foundation wall and wall–footing joint, followed by surface cleaning.
- Repair of visible cracks and joint areas with polymer-modified mortar where needed.
- A cementitious coating, primer and self-adhering sheet waterproofing membrane.
- Drainage board and a termination bar over the wall treatment.
- Perforated drain tile at the footing in gravel and geotextile, followed by backfill.
These are the components specified in the job record. The available record does not independently show the installed pipe elevation, membrane seams, drain outlet, final backfill or restored grade. We therefore do not present example product photographs as if they were taken at this house.
How is this different from an interior French drain?
Exterior waterproofing addresses an accessible foundation wall from the soil side. A footing drain, when installed with a workable outlet, can collect water beside the footing. An interior French drain instead collects water after it reaches the basement perimeter and routes it to a sump or other approved discharge. A shallow yard-drainage trench is a different system from a footing-level drain; the terms should not be used interchangeably.
What result is documented?
The scheduled visits are marked complete and the job is closed in the work-management record. That does not, by itself, verify the exact as-built details or performance after heavy rain. No dated follow-up establishing a dry basement is available for this review.
Questions Ashburn homeowners ask
Does a wet basement always need exterior excavation?
No. The water path, foundation type, exterior access, groundwater conditions and discharge options need to be assessed before choosing exterior treatment, interior drainage or surface-water control.
Is a sheet membrane the same as a drain board?
No. The membrane is the water-resisting layer on the prepared wall. The board protects that layer and provides a drainage path; it does not replace the membrane or a properly designed outlet.
Can a work order prove that a footing drain was installed at the correct depth?
No. The line item describes the planned component, while dated installation photos or as-built records would be needed to verify the actual pipe elevation and outlet.
Need to identify the source of basement water in Ashburn? Request an inspection. Learn more about exterior waterproofing and interior drainage.
Reviewed by the DMV Waterproofing engineering team. If same-job construction and finished-condition photographs become available, this page can be updated with a verified case account.