Document the condition
Note location, timing, weather relationship, changes over time, and any previous work. Photos and simple measurements can improve the first conversation.
Read the local context
Joliet-area homes span a wide range of built eras -- from the East Side Historic District's 1852-1873 housing stock near the original rail lines to postwar subdivisions in Crest Hill and New Lenox and newer construction toward Plainfield and Minooka -- but nearly all of them sit inside the same Des Plaines River watershed, where regional stormwater planning identifies basement flooding and sewer backup, not surface ponding, as the typical face of urban flooding. Whatever decade a house was built in, water tends to find the same paths -- foundation joints, sewer laterals, window wells -- and it is the site's grading and drainage history, not just the age of the wall, that decides where it shows up.
Ask what will be hidden
Roof runoff, grading, hydrostatic pressure, wall cracks, floor joints, drainage, and interior humidity can create similar symptoms with very different solutions. The written scope should explain the preparation and verification that will no longer be visible at completion.
Compare complete scopes
Look for protection, access, materials, permits, testing, cleanup, restoration, exclusions, warranties, and change-order rules.
What official local sources add
The City of Joliet has enacted a Stormwater Management Ordinance to limit runoff-related risk from new development and redevelopment, and the City serves as the permitting authority for land-disturbing activity, requiring landowners to maintain on-site stormwater control facilities. Parts of Joliet sit within a mapped 100-year flood zone near the Des Plaines River, where floodplain-disclosure requirements apply. Will County separately maintains its own stormwater management and water-resource ordinances for unincorporated areas.
Sources were reviewed 2026-07-26. Confirm parcel-specific flood zones, permits, and current requirements with the relevant authority before authorizing work.