Sandy Springs, Georgia
Crawl space and basement waterproofing in Sandy Springs
From Sandy Springs, this number reaches an independent local waterproofing company. Before any work outdoors is planned, spend five minutes with the city's map.
You talk with an independent local waterproofing company. Roswell Crawl Space is a referral service and does none of the work itself.
Open the map before the proposal
Sandy Springs publishes a Community Development Map with a stream buffer layer. Its streams and creeks page explains how to switch that layer on and see whether a buffer crosses your lot.
The rule behind the map is strict. Once a waterway is confirmed as state waters, the city requires a buffer of at least 75 feet. Land disturbance is prohibited within 50 feet of the water. Concrete and structures are prohibited within 75. Decks, patios and walkways that reach into the buffer need a variance from the Board of Appeals.
City staff will determine whether a particular creek or channel counts as state waters.
How the buffer touches waterproofing work
| Job | Affected? | Why |
|---|---|---|
| Crawl space encapsulation | No | Everything happens under the house. |
| Interior basement drain | No | The channel is cut inside the slab. |
| Sump pump | The outlet may be | The discharge pipe has to end somewhere outdoors. |
| Exterior waterproofing | Possibly | The trench is land disturbance if the wall faces a creek. |
| French drain or regrading | Often | Both disturb soil and both need a low place to empty. |
Close to the Chattahoochee
Lots within 2,000 feet of the river's banks sit in the Chattahoochee River Corridor, which has its own protections on top of the stream buffer. If that is you, raise it with the city before a contractor prices any digging.
For flood risk, the city's flood zone page points to the Georgia Department of Natural Resources flood map, where you can search by address.
Then call about the house
With the map checked, the conversation with a company is simpler. You can say at the start whether outdoor work is open to you or whether the fix has to stay inside. Start with what you are seeing if you are unsure which job fits.