Document the condition
Note where the issue shows up in the Roswell house, when it happens, how it tracks with weather, whether it's changed, and any past repairs -- photos and rough measurements help the first conversation go further.
Read the local context
Three things about the particular lot decide this job. Where the water shows -- a line along the wall-to-floor joint points somewhere different from a damp patch partway up a wall. What happens uphill after a heavy storm, since on these rolling sites the source is usually above the house rather than at the wall. And where the downspouts currently discharge, which is the cheapest thing to change and frequently a large part of the cause. Pull the parcel's flood status at the same time, because it can limit what may be excavated outside.
Ask what will be hidden
A damp Roswell basement can start from grading, gutter overflow, a cracked wall, slab humidity, or backpressure against the footing -- the symptoms overlap even when the underlying fix doesn't. Once a Roswell job wraps up, the prep and verification work disappears from view -- the written scope is where it should be described.
Compare complete scopes
Line up Roswell proposals side by side for protection, access, materials, permits, testing, cleanup, restoration, exclusions, warranties, and change-order terms.
What official local sources add
The floodplain-management program is the record that reaches below-grade work here, and it reaches it twice. On a parcel near mapped risk, what may be built or finished below grade is a regulated question rather than a design preference, and the city points owners at current FEMA and Georgia flood mapping precisely because those maps are revised. The second reach is the exterior half of the job: regrading, a new discharge line or an excavated drain is site work, and where it approaches a stream corridor the environmental-protection strand of the 2045 framework applies. Pull the parcel's status before a method is priced, not after.
Reviewed June 20, 2026 -- confirm the Roswell parcel's flood zone, historic-district status, permits, and current rules with the relevant authority before signing off on work.