Big Creek is the waterway most Alpharetta residents know, mostly from the paved greenway that follows it for miles through the city and on into Roswell. The creek begins in Forsyth County and drains a long band of rooftops, parking lots and roads before it reaches the Chattahoochee. After a slow-moving thunderstorm, that runoff arrives all at once, and the low ground along the creek is where it spreads out.
The Restoration Job does not send crews or do repairs. It is a free 24/7 phone line: call (888) 317-9980 and we'll connect you with an independent restoration provider that serves Alpharetta, for a flooded office suite at Windward, a leaking roof downtown or a soaked basement in a subdivision.
How the call works: when you call (888) 317-9980, The Restoration Job connects you with an independent restoration provider that serves Alpharetta. That provider inspects the damage, explains the scope and quotes the work. The Restoration Job doesn't perform restoration itself. Read our referral disclosure.
The Big Creek Corridor After Heavy Rain
The Big Creek Greenway covers about 8 miles through Roswell and Alpharetta, with another 9.6 miles in Forsyth County, and the lowest stretches sit right beside the channel where high water spreads first. North Fulton saw what that means in September 2009, when days of rain across north Georgia sent record flows through dozens of streams; the U.S. Geological Survey found 33 gauges in the region exceeded 100-year levels.
Properties near the creek and its smaller tributaries should be checked on the FEMA Flood Map Service Center, and owners should remember that flood damage is generally not covered by a standard homeowners or commercial property policy without separate flood coverage. If creek water gets inside, it is considered contaminated, and flood cleanup involves removing affected porous materials, disinfecting and then drying the structure.
Offices, Restaurants and Mixed-Use Buildings
Alpharetta has more commercial space than most suburbs, from the business district along Windward Parkway to Avalon, the 86-acre mixed-use development that opened in 2014, to the restaurants and shops downtown. Water damage in these settings has its own pattern:
- Fire sprinkler heads or lines that break, freeze or get struck release a lot of water fast, often over desks, electronics and inventory.
- Rooftop HVAC units and flat-roof drains can leak into suspended ceilings, where tiles hide the extent of the problem.
- Restaurant kitchens deal with ice machine lines, dishwasher connections and floor drain backups.
- In mixed-use buildings, a leak in a residential unit can end up in a ground-floor shop.
For a business, the first goals are to stop the water, protect records and equipment, and document everything for the insurer and the landlord. Ask the provider for moisture maps and drying logs, which help with both the claim and any lease questions about who pays for what.
Old Milton County Seat, Newer Subdivisions
Alpharetta was chartered in 1858 and served as the seat of Milton County until that county merged into Fulton in 1931, so the downtown area has some older buildings among the newer construction. Away from downtown, the city's roughly 26,000 housing units are a mix of single-family subdivisions and multifamily buildings. In these homes the usual sources are internal: water heaters, supply lines, dishwasher and ice maker connections, and upstairs bathrooms whose leaks show up in the ceiling below.
Shut off the water at the main valve, stop using the affected fixture and turn off power to any wet area before you start moving belongings. Then photograph everything. Water damage restoration after a plumbing failure is usually faster and simpler than after a flood, because the water is clean at the start, but it becomes harder the longer it sits.
Humid Summers and the Mold Window
The city averages a little over 51 inches of rain a year and has a humid subtropical climate, with long, muggy summers. Once building materials are wet, mold can start forming within 24 to 48 hours. Basements, closets on exterior walls and the cavities behind kitchen cabinets are common hiding spots because air barely moves there.
Professional drying uses dehumidifiers and air movers in a closed space, not open windows, and checks progress daily with moisture meters. If mold is already visible or you keep smelling it after cleanup, ask for an assessment. Painting over a stain does nothing about moisture still trapped inside the wall.
Wind, Ice and Falling Limbs
Snow is rare here, averaging under an inch a year, but ice storms and hard freezes still happen. A cold snap can split pipes in garages, attics and exterior walls, with the leak appearing after the thaw. Summer thunderstorms and the remnants of tropical storms bring a different threat: trees and large limbs coming down on roofs. Once a roof is punctured, every hour of rain adds to the damage inside, so tarping comes before anything else. Neighboring Roswell sits downstream on the same creek and tends to see the same storms.
Neighborhoods and Nearby Communities
Calls come in from across Alpharetta, including:
- Downtown Alpharetta
- Avalon
- Windward
The same line also serves nearby communities such as:
- Roswell
- Milton
- Johns Creek
- Sandy Springs
- Mountain Park
Questions From Alpharetta Property Owners
The sprinkler line in our leased office burst over the weekend. Where do we start?
Have building management shut the sprinkler zone and confirm the system is safe, then cut power to wet areas. Move electronics and files to a dry space and photograph everything first. Notify the landlord and your insurer the same day. A restoration provider can extract water from carpet tiles, open ceilings where tiles are saturated and set drying equipment, while keeping logs you can give the adjuster.
Does Big Creek flooding affect homes away from the greenway?
It can. Big Creek collects runoff from a large area, and smaller tributaries back up when the main creek is high. Homes in low spots near those channels may see yard or crawl space flooding even if they are not right on the creek. Look up your address on the FEMA flood map and watch drainage around your foundation during long rain events.
Is a pipe that froze and burst covered differently than flooding?
Usually, yes. A sudden pipe break is generally a covered peril under homeowners policies, although some policies require that you kept the home reasonably heated. Water from outside, such as creek overflow or surface runoff, is typically excluded and handled by flood insurance instead. Read your policy, call your agent early and save photos and removed materials until the adjuster has seen them.