Organize water clues
Use timing, first wet point, exterior drainage, and sump behavior to understand which path may matter most.
Interactive tools and calculators
Basement waterproofing tools and calculators
Use these tools to organize basement water symptoms, estimate drainage costs, flag safety concerns, and prepare better questions before comparing repair options.
How to use this page
- Start with the symptom or decision closest to your situation.
- Compare repair options before choosing a contractor quote.
- Check cost assumptions, safety boundaries, and related guides.
- Request an inspection when water, odor, humidity, insulation, or wood concerns are active.
Why use a tool
Turn scattered clues into a clearer next step
Flag safety concerns
Electrical risk, sewage odor, gas smell, wall movement, and flood cleanup concerns are separated from routine waterproofing questions.
Prepare for estimates
Use calculator ranges, scope notes, and plain-language summaries when comparing contractor recommendations.
Available tools
Choose the tool that matches your next question
Start with the water source diagnostic if you are unsure where water is entering, use the quote analyzer if you already have an estimate, or use a calculator when you are comparing scope and cost.
Basement Water Source Diagnostic
Homeowner is unsure where basement water is coming from and wants a guided checklist.
Open toolFrench Drain Cost Calculator
Homeowner wants a planning range for French drain installation cost before comparing drainage estimates.
Open toolBasement Waterproofing Quote Analyzer
Homeowner has a basement waterproofing estimate and wants to understand whether the quote is clear enough to compare.
Open toolBasement Waterproofing Cost Calculator
Homeowner wants a broad basement waterproofing cost range before requesting or comparing estimates.
Open toolSump Pump Cost and Backup Calculator
Homeowner wants to estimate sump pump installation or backup cost after pump failure, flooding, or storm concern.
Open toolSump Pump Sizing & Discharge Calculator
Homeowner replacing or buying a sump pump wants to know the GPM, horsepower, and discharge pipe size they actually need.
Open toolEgress Window Calculator
Homeowner finishing a basement or adding a bedroom wants to know whether a window meets egress code: clear opening, sill height and window well.
Open toolRadon Levels by Zip Code
Homeowner or buyer wants to know whether radon is high where they live: EPA radon zone, real test results for their county or zip, and what to do next.
Open toolRadon Mitigation Cost Calculator
Homeowner or buyer with a high radon test wants to know what a mitigation system costs to install and run, and what their state requires of the installer.
Open toolBasement Dehumidifier Size Calculator
Homeowner with a damp basement wants to know what size dehumidifier to buy, how to drain it and what it costs to run.
Open toolFlooded Basement Cleanup: DIY or Call a Pro?
Homeowner with water in the basement wants to know whether they can do the flooded basement cleanup themselves or need a water mitigation company.
Open toolWet Basement Repair Cost Calculator
Homeowner has a wet basement and wants a rough repair range before knowing the exact solution.
Open toolBasement Flood Risk Score
Homeowner wants to understand basement flood risk before heavy rain or before finishing a basement.
Open tool