Document the condition
Write down where the symptom is, when it appeared, whether it tracks with rain or dry spells, and any past work at the Charleston address -- that record is worth more than it seems once a provider gets involved.
Read the local context
Charleston's mix of colonial-era masonry, raised Lowcountry cottages, and newer construction on reclaimed marsh all sit under the same basic constraints: low elevation, a high water table, and soil that behaves differently than ordinary clay or sand.
Ask what will be hidden
Because pluff mud keeps consolidating under load long after construction, a Charleston scope should spell out exactly what gets verified below grade -- that's the part no one will be able to check once the job is closed up.
Compare complete scopes
Line up Charleston proposals side by side on protection, access, materials, permitting (historic review included, where it applies), testing, cleanup, restoration, and how change orders get priced -- not just the total.
What official local sources add
Charleston's preservation and floodplain offices publish district maps and flood-zone data that matter well beyond the historic core -- current flood designations, drainage rules, and any district overlay should be checked against the specific parcel before scoping a project.
Sources were reviewed June 20, 2026. Charleston property owners should confirm parcel-specific flood-zone status, historic-district status, and permit requirements with the relevant authority before work is authorized.