Marietta Wood Flooring has spent more than 20 years on wood-flooring in Mableton and the rest of Cobb County, and a good share of that work starts with one question: what has water already done to this floor? We sand and refinish, install new solid hardwood and engineered wood, repair damaged boards and replace carpet, laminate and vinyl plank with real wood. Before a single board comes up, we want to know how close the house sits to moving water and what the floor has been through.

That habit shapes every estimate we write. A cupped floor gets a moisture meter reading before any drum sander touches it, because a board that is still wet will flatten under the sander and then crown once it dries. Water damage gets traced, dried, measured and photographed room by room, so the repair you pay for matches the damage that is actually there.

This page covers the part of Mableton work that sets it apart: the creek, the flood study that maps it, and the choices a homeowner near the water should make before and after a floor gets wet. The rest of what we do, from termite repairs ahead of a closing to refinishing builder oak, works here the same way it does across the county.

Nickajack Creek and the Chattahoochee in Mableton

Worker fitting new plywood subfloor ahead of new oak flooring in a Mableton home.

Nickajack Creek begins in Marietta, passes through Smyrna and ends at the Chattahoochee River in Mableton. The Chattahoochee forms the city’s southeastern border with Fulton County, so the lower creek and the river share the same low ground. Along the way the creek winds through Heritage Park, land held by the Cobb Land Trust.

For a flooring contractor, that geography matters more than a street address. A house on a ridge above the creek and a house near its banks can be the same age and have the same red oak, yet one floor has only ever seen humid summers while the other may have sat through standing water. We ask about the lot before we quote the floor.

A New City That Still Relies on Cobb Stormwater

Mableton voters approved incorporation on November 8, 2022, and Michael Owens was elected the city’s first mayor in 2023. The city is young, and it did not take over every county function. Under the 2025 service-delivery agreements, Cobb County still provides stormwater service to the City of Mableton, along with water and sewer, GIS and several other services.

That split tells you where to call. If a drainage structure or culvert near your home is failing, the stormwater question goes to Cobb County rather than city hall. We point customers there when the water reaching a floor is coming from outside the house instead of from a burst supply line.

County Work on the Tributaries

The county’s stormwater work along the creek is ongoing. In December 2025, the Cobb County Water System applied for a variance to work inside the state-mandated 25-foot buffer along state waters, so it could repair and rebuild a partially collapsed stormwater detention wall on an unnamed tributary to Nickajack Creek. The site sits just east of Floyd Road and south of Nickajack Road, between Valley Creek and Oak Hill roads, and the county expected the work to take about six months.

Looking for wood-flooring closer to Powder Springs? See Wood-Flooring in Powder Springs.

What the FEMA Flood Study Maps Along the Creek

FEMA’s Flood Insurance Study for Cobb County and its incorporated areas, revised March 4, 2013, includes a detailed look at Nickajack Creek. Hydrologic and hydraulic analyses for the creek were performed by AMEC Earth and Environmental for FEMA, and that restudy was completed in October 2004. The study’s flood profiles for Nickajack Creek run across panels 95P through 100P.

We are not flood engineers, and we do not read a flood profile as a verdict on any one house. Still, studies like this one back the flood maps used by the National Flood Insurance Program, and they are where a homeowner near the creek should start. Because the 2013 revision predates Mableton’s incorporation, confirm with Cobb County which map and study apply to your parcel today.

September 2009 Went Past the 500-Year Level

The same study records that in September 2009, parts of Cobb County saw flooding that exceeded the 0.2-percent-annual-chance event, the level usually called the 500-year flood. Cobb County counts more than 1,600 homes damaged countywide in that flood. The study also lists earlier large floods in July 1916, November 1948, February 1961, March 1975 and March 1977.

A flood line drawn for a 1-percent chance each year does not promise that water stops there. The 2009 storm showed that a rare event can reach past both mapped lines, which is why we treat a house near the creek differently even when it has never flooded under its current owners.

What Cobb Has Done Since the Flood

Since 2009, Cobb County has supported mitigation measures, including acquisition and drainage improvements in the neighborhoods hit hardest. That work changes the picture on some streets and leaves others as they were. When we walk a home near the creek, we ask what the seller or a previous owner disclosed about water, and we look at the subfloor and the undersides of boards wherever we can reach them.

Choosing Floors for a House Near the Creek

The best time to check the flood map is before you choose a floor, not after the boards are down. A household that learns its lot sits near a mapped floodplain may choose differently for a terrace level than one sitting well above the creek. We talk through that choice at the estimate rather than after the order is placed.

Solid Hardwood Upstairs, Engineered Below Grade

Solid hardwood belongs on the main levels, where it can be sanded and refinished many times over. A terrace level or finished basement is a different story. Below grade, we install engineered wood over a vapor retarder, because solid boards on a below-grade slab take on moisture and cup. A good engineered wear layer still takes a refinish, and a floating or glue-down engineered floor handles seasonal swings far better.

Species matters too. White oak, red oak, hickory and maple carry different Janka hardness ratings, and a harder floor resists dents in a busy kitchen. None of them tolerates standing water, so near the creek the installation method counts for more than the species.

Replacing Carpet or Vinyl on the Lower Level

Plenty of homes near the creek still have carpet, laminate or luxury vinyl plank on the terrace level, and owners often want real wood there. We pull the carpet pad and tack strip, or lift the old plank, and check the slab for moisture before anything new goes down. If the reading supports it, engineered wood goes in; if it does not, we say so rather than install a floor we expect to fail.

Stairs leading down to that level get the same attention. We price them tread by tread, with new stair treads, risers and nosing matched to the floor above or below, because a staircase is never quoted by the square foot.

Acclimation, Soils and a Moisture Reading First

Every delivery sits in the house long enough to acclimate before installation, and we read both the boards and the subfloor with a moisture meter. If the two readings sit too far apart, we wait rather than fasten down boards that are still going to move. We leave a proper expansion gap at every wall so the floor can swell in a humid August without buckling.

Across Cobb County, surface soils are prevailingly sandy while the subsoils are prevailingly clayey. On a lot near the creek, we look at how water moves around the house after a heavy rain before we recommend a floor for the lowest level. A dehumidifier on a terrace level is often part of our advice, not an afterthought.

Build Year Before Sanding

Mableton’s housing spans many decades, and 34.7 percent of its homes were built before 1980. Federal lead-safe rules under the EPA RRP Rule reach homes built before 1978, so we check the build year before sanding a floor or disturbing old painted trim. It is a quick step that decides how the job has to be set up.

Repairing Wood Floors After Water Gets In

Water in a wood floor shows up in stages. First the boards cup, with edges higher than centers, as the bottoms swell. If the floor stays wet long enough, it can buckle and lift off the subfloor, and once the water is gone, a floor sanded too soon can crown because the sander removed wood that was only swollen.

Trace, Dry, Measure, Photograph

We start by finding where the water came from and confirming it has stopped. Then we dry the floor and the subfloor, often with fans and a dehumidifier, and take moisture readings across each room. Every room gets measured and photographed, which gives you and your insurance adjuster a record of the damage before any board comes up.

That record matters whether you carry flood coverage through the National Flood Insurance Program or a private policy. An adjuster can see which rooms read wet, which boards cupped and which ones dried flat on their own.

Hollow spots underfoot after a flood usually mean the subfloor moved or the adhesive under a glue-down floor let go. We find them by walking and tapping each room, because a floor that looks flat can still be loose over a patch of swollen plywood. Those areas get opened up and the subfloor checked before new boards go over them.

Boards to Save and Boards to Replace

Many cupped floors settle back once they dry, and those can be sanded and refinished after the readings level out. Boards that split, turned black with water stains or pulled loose from their flooring cleats come out. We cut them out and lace in matching boards, weaving them into the old run so the repair does not read as a patch.

Where the damage runs through a whole room, replacement makes more sense than a long string of repairs. We will tell you which way the numbers point once the floor has dried and the readings are in, not while the boards are still swollen.

Refinishing After the Repair

Once the new boards are in, we sand the whole room so old and new sit level, then finish it to match. We can apply a waterborne polyurethane, an oil-modified polyurethane or a hardwax oil, and we choose clear finishes by their federal VOC category rather than the number meant for opaque floor coatings. Stain samples go down on the repaired floor itself, so the color you approve is the color you get.