Water Damage Restoration in Alpharetta, GA: Big Creek and Beyond

Alpharetta’s housing is young. Census estimates put the median home’s year of construction at 1998, and a town of 3,128 residents in 1980 had grown to 65,818 by 2020. A page about water damage restoration in Alpharetta, GA has to start with the subdivisions, townhomes and apartment buildings of that one long building boom, and then turn to Big Creek, which has topped its flood stage in each of the last three recorded water years.

GA Water Damage is a referral service that connects callers with independent local water damage restoration providers; it is not a contractor. The call is free. The provider you are connected with inspects the damage, gives the quote and does the work, and it is the homeowner’s job to confirm that provider’s license and insurance before hiring.

If water is on the floor right now, three steps come before any phone call about restoration.

1. Stop the water. For a supply leak, close the fixture valve or the main shutoff for the house.
2. Switch off power to the wet rooms at the breaker panel, but only if you can reach the panel without standing in water.
3. Photograph every wet room and damaged item before anything is moved. The joint federal guide for homeowners puts photographs and a call to the insurer ahead of cleanup.

A city built in thirty years

The American Community Survey’s 2024 one-year estimates count about 27,878 housing units in Alpharetta. About 69 percent of them were built between 1980 and 2009: roughly 5,700 in the 1980s, 8,026 in the 1990s and 5,483 in the 2000s. Only about 2,150 units, under 8 percent, predate 1980.

The population figures tell the same story. The census counted 3,128 residents in 1980, 13,002 in 1990, 34,854 in 2000 and 65,818 in 2020. Nearly all of the city’s housing dates from that single thirty-year stretch or later.

Building has not stopped. Avalon, the 86-acre mixed-use district, opened its first phase in October 2014 with 101 single-family residences and 250 rental homes, and its second phase added 276 multi-family units in April 2017. Alpharetta City Center, in the old downtown, includes 168 apartments along with City Hall and the Fulton County library branch.

About four in ten Alpharetta homes share a wall, floor or ceiling

The same survey shows what kind of buildings these are. About 52 percent of units are detached houses and 11 percent are townhomes or other attached single units. A third, about 9,300 units, sit in buildings of five or more, including some 3,646 in buildings of 50 units or more.

That mix matters once water is loose. In a detached house the owner decides everything. In a townhome or an apartment, water can cross into a neighbor’s unit, and a landlord, a property manager or an owners association may need to be told before walls are opened. About 62 percent of occupied homes in the city are owner-occupied, so a large share of residents rent and should call the landlord in the same hour they call anyone else.

Alpharetta housing, 2024 estimates	Figure
Housing units	About 27,878
Median year built	1998
Built 1980 to 2009	About 69 percent
Built before 1980	Under 8 percent
Detached houses	About 52 percent
Townhomes and other attached single units	About 11 percent
Units in buildings of five or more	About a third

Is your street near Big Creek?

The waterway with a flood gauge and a flood record in Alpharetta is Big Creek. Also called Vickery Creek, it is a 26.5-mile stream that rises about a mile south of downtown Cumming, flows past Alpharetta and joins the Chattahoochee River at the southern edge of Roswell. The Big Creek Greenway follows it through the city.

The creek is measured at a USGS streamgauge on Kimball Bridge Road near Rock Mill Park. The gauge drains 72 square miles and has daily records going back to May 1960. The National Weather Service sets four levels for it and publishes a statement of what it expects at each height.

Creek level at the gauge	NWS category	What the Weather Service says happens
6 feet	Action stage	Below flood stage; the level the Weather Service sets as the point to start preparing for possible flooding
7 feet	Flood stage	Parts of the Big Creek Greenway may close under about a foot of water, especially around Kimball Bridge Road and Rock Mill Park; the YMCA campground off Preston Ridge Road begins to flood
9 feet	Minor flooding	The greenway is flooded up to 3 feet deep; backyards of homes off Seale Drive and Gunter Court, and parts of the Golf Club of Georgia, begin to flood
11 feet	Moderate flooding	Moderate flooding begins upstream and downstream of the gauge
12 feet	Moderate flooding	Those backyards are under 3 feet of water; flooding covers portions of Rock Mill Park
13 feet	Major flooding	Water hits the foot bridge just below the gauge and reaches the foundations of apartments on Gran Crique Drive; flooding begins on Webb Bridge Road and McGinnis Ferry Road

Read the 9-foot line with care. The Weather Service says backyards, not houses. At 13 feet, a level the creek has reached once, in February 1982, its statement says water reaches the foundations of apartments on Gran Crique Drive.

The Weather Service also describes levels the gauge has never recorded. At 14 feet it lists flooding on Haynes Bridge Road and Old Holcomb Bridge Road and water entering several apartments on Gran Crique Drive. From 15 feet it lists flooding on Georgia 400. Those are forecasts of impact for a flood larger than the record, not accounts of past events.

How high the creek has been

USGS has recorded an annual peak at this gauge since February 1961. The record is 13.05 feet on February 3, 1982. Next come 12.81 feet on March 17, 1990, 12.54 feet on February 21, 1961, and 12.5 feet on the night of September 21 to 22, 2009, during the floods that hit the Atlanta region that month.

Three of those four came in February or March. The September 2009 crest is the only one of the four that did not, so on this gauge the highest water has mostly come in those two months rather than with tropical weather.

Date	Crest at the gauge	Note
February 3, 1982	13.05 feet	Record; the only peak at or above major flood stage
March 17, 1990	12.81 feet	Second highest
February 21, 1961	12.54 feet	Third highest
September 21 to 22, 2009	12.5 feet	Fourth highest
January 5, 2023	10.61 feet	More than 3 feet over flood stage
September 27, 2024	10.77 feet	Hurricane Helene
February 13, 2025	10.29 feet	More than 3 feet over flood stage

The last three rows are the last three water years in the USGS file, and each one is well above the 7-foot flood stage. The Weather Service says Helene, from September 24 to 27, 2024, brought widespread rain totals of 6 to 14 inches, with the highest mainly in east-central Georgia and the Atlanta metropolitan area. Big Creek peaked on the last of those days.

Creek water that enters a house is a flood loss, and that is a different claim from a broken pipe. Georgia’s insurance commissioner says a standard homeowners policy does not cover flooding and that flood cover is a separate policy bought through the National Flood Insurance Program. The details, including the 30-day wait on a new flood policy, are on the page about flood damage restoration in Georgia.

Water main breaks and sewer problems: Fulton County, not the city

Alpharetta does not run its own water or sewer system. Fulton County serves North Fulton, and its Emergency Repairs page lists two separate North Fulton lines: one for a water main break or other drinking water emergency, and one for sewer emergencies. The county asks callers to have their name, a phone number, the location and a description of the problem ready.

The same county page sends roadway and stormwater problems to the resident’s own city. In Alpharetta that means the city’s Public Works department, which has an online Report an Issue portal. A flooded intersection or a blocked storm drain is a city matter; a geyser in the street from a broken main is a county one.

What you are looking at	Who handles it
Water pouring from the street or a broken main	Fulton County, North Fulton drinking water line
Sewage coming up from the public sewer	Fulton County, North Fulton sewer emergencies line
Flooded road or blocked storm drain	City of Alpharetta Public Works
Leak from a pipe or appliance inside the home	The owner: a plumber for the pipe, a restoration provider for the wet building
Danger to life, or water near live electricity	911

One line in the county code is worth knowing. The water meter belongs to Fulton County, and the county may shut off water from any pipe or main in an emergency or for repairs. The trade standard for water damage work, the IICRC S500, puts finding and correcting the source of the water on the property owner, not on the restorer, so a plumbing leak usually means two calls: one for the pipe and one for the wet rooms.

Cold snaps north of Atlanta

Alpharetta’s average January low is about 30 F, so an ordinary January night dips just below freezing. An arctic outbreak is another matter. On December 24, 2022, National Weather Service climate sites in north Georgia recorded lows of 7 F at DeKalb-Peachtree Airport, 5 F at Gainesville and 8 F at Atlanta. The Weather Service summary gives no reading for Alpharetta itself.

A pipe that freezes may not leak until it thaws, which is why a split is often found a day after the cold has passed. If a pipe has burst, close the main shutoff first and then call. What to do next, and how insurers treat freeze losses, is covered on the page about burst pipe water damage in Georgia.

About 51 inches of rain and Georgia humidity

Alpharetta gets about 51 inches of precipitation a year, according to NOAA figures as commonly tabulated. It is spread across the calendar: February is the wettest month at about 5 inches and October the driest at about 3.5. Even the driest month in that table brings a few inches of rain.

Damp air is why the clock matters once a room is wet. The Georgia Department of Public Health says molds can grow within 24 to 48 hours on a wet material that is not dried or discarded promptly, and it uses a burst pipe as its example. It advises keeping indoor humidity below 60 percent, ideally between 30 and 50 percent.

University of Georgia Extension gives the same window, telling homeowners to stop the moisture source and dry the area within 24 to 48 hours, and to consider a dehumidifier when indoor humidity is over 50 percent. For a home with a crawl space it recommends covering the soil with a 6 to 8 mil plastic vapor barrier.

The drying stage, with its air movers, dehumidifiers and daily moisture readings, is explained on the page about water mitigation in Georgia. If growth has already started, see mold remediation in Georgia. The same health department states that mold inspection, testing and remediation have no enforceable state or federal standards, which is one more reason to check a provider’s credentials and insurance yourself.

Permits in Alpharetta

Once the house is dry, the rebuild may need a permit. Under the city code, building permits in Alpharetta are issued by the city’s building official, who enforces the building chapter together with the fire marshal. Applications for building and trade permits go through the online permit portal linked from the city’s How Do I page, and the department is Community Development.

The city code says that where a code is adopted as a state minimum, the edition adopted by the state controls. Georgia’s current state minimum codes are the 2024 International Building, Residential and Plumbing Codes and the 2023 National Electrical Code, each with Georgia amendments.

Costs, neighborhoods and how the call works

GA Water Damage sets no prices, and no published price list for Alpharetta was found. The only dated reference in the research for this page is national. HomeAdvisor’s cost guide, updated June 17, 2026, gives the figures below as its own estimates for the United States. A provider’s quote after seeing the damage is the number that counts.

HomeAdvisor national estimate, updated June 17, 2026	Figure
Average water damage repair	$3,868
Typical range	$1,383 to $6,369
Full range reported	$450 to $16,000
Cleanup, clean water	About $3.50 per square foot
Cleanup, gray water	About $5.25 per square foot
Cleanup, black water	About $7.50 per square foot

Alpharetta neighborhoods on the public record

The areas below are the parts of the city named in the sources used for this page, with what those sources say about each. Whether a provider is available for a given address is settled on the call.

• Downtown Alpharetta: the old county-seat core, now with City Center’s 168 apartments, City Hall and the county library branch. The city’s development code has a Downtown Overlay District and a separate Downtown Code.
• Avalon: some of the newest housing in the city, with single-family residences, rental homes and multi-family units built from 2014 onward.
• North Point: the district around North Point Mall, which opened on October 20, 1993. The greenway has an access point on North Point Parkway, and the Weather Service names the mall complex only in its statement for a 19-foot creek level, far above the record.
• Windward: the area along Windward Parkway. The Alpharetta section of the Big Creek Greenway ends at Marconi Drive, near the parkway.
• Preston Ridge: named for Preston Ridge Road, where the greenway has a trailhead by the YMCA. The YMCA campground there is among the first places the Weather Service lists as taking water.
• Crabapple: has its own Crabapple Overlay in the city’s Unified Development Code.
• Meadowbrook Hills, Milton Estates and Stone Gate Manor: three residential neighborhoods named together in a dedicated residential overlay district in the same code.

Alpharetta is bordered by Roswell to the south and west, Johns Creek to the southeast and Milton to the north. Roswell, where Big Creek meets the Chattahoochee, has its own page on water damage restoration in Roswell, GA. There are also pages on water damage restoration in Sandy Springs, GA and water damage restoration in Duluth, GA.

What happens when you call

You call the number on this page and are connected with an independent local restoration provider. Some participating providers offer 24/7 emergency service; whether one is available depends on the provider, the location and demand. You describe the water, the provider tells you what it can do and what it charges, and you decide whether to hire.

The service costs the caller nothing and no one is obliged to hire. For the statewide picture see water damage restoration in Georgia, and for what this service is and is not, read about GA Water Damage.

Questions people ask