Ten tools
All of them run in your browser. None of them require an email address. Nothing you type into a calculator is sent to us or to anyone.
Soil lookup by ZIP
Drainage class, shrink-swell, water table depth and hydrologic group for the county, straight from the USDA soil survey.
Condensation, seepage or structural?
A decision tree that separates the three problems, because they have three different price tags and three different contractors.
Crack rater
Width, direction, displacement and progression. Tells you whether you are looking at ugly or dangerous.
Crack tracker
Log measurements over months and see the trend. A crack that is not moving is a different problem to one that is.
Repair cost calculator
Model a range from your dimensions, problem and solution. Labelled as a model, because that is what it is.
Interior vs exterior comparison
Cost, invasiveness, lifespan and what each actually stops. Side by side, for your basement's dimensions.
Sump pump sizing
The calculation most quotes skip: inflow rate, total dynamic head, and what capacity that requires.
Downspout and drainage calculator
How many gallons your roof delivers next to the wall in an hour of rain, and where it needs to go instead.
Contractor visit checklist
Printable. Twenty-two questions, in order, with the answers that should worry you.
Radon expectation by county
The adjacent problem that uses the same route into the house, and the reason to test before you seal a slab.
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