Use the tool during or after rain
The strongest clues are timing and first wet point. If it is safe, take photos before cleanup, then compare the same area after the next storm.
Interactive tool
Basement Water Source Diagnostic
Answer a few symptom questions to organize likely water paths, safety flags, and the most useful pages to review before requesting an estimate.
Before you begin
Use this safely
- Do not enter standing water near electrical equipment.
- Use the first wet point, not the largest puddle, when possible.
- Select all exterior and sump clues you can observe safely.
- Treat the result as planning guidance, not a diagnosis.
Interactive diagnostic
Select the closest water clues
This tool organizes basement water symptoms and points you to useful next pages. It does not diagnose the home, replace emergency help, or replace an on-site inspection.
When does the water appear?
Choose the timing that fits best. Timing is often the strongest clue.
Where do you think water starts?
Pick the first wet point, not the largest puddle after water spreads.
What do you see outside the wet area?
Select anything visible near the same wall or corner.
What is happening with the sump system?
Choose the closest pump or basin behavior. Skip if there is no sump pump.
What other clues are present?
Select all that apply. These details help separate leak, pressure, humidity, and cleanup issues.
Any immediate safety flags?
If any of these are present, handle safety before routine waterproofing decisions.
Match symptoms to system function
Drains collect water, pumps remove collected water, exterior work reduces water at the source, and crack repair seals a specific path. The result should help you ask better scope questions.
Escalate safety concerns first
Electrical risk, sewage odor, gas smell, structural wall movement, or contaminated floodwater should be handled before ordinary waterproofing estimates.