A large share of Charlotte's housing is fairly new, and new tile has its own grout problems. Builder grout often goes in unsealed, and light colors show every spill. Add soft water and a winter with real freezes, and you have the main things we deal with in Charlotte grout. Here is how we handle each one.
Newer homes and unsealed builder grout
Census data puts Charlotte at 399,305 housing units, with a median year built of 1995. About half of them, 51 percent, are detached single-family houses. So many homes here are in their second or third decade, and plenty are newer than that.
New construction tends to use cement grout in a light gray, beige or white, and it is rarely sealed before the keys change hands. Unsealed cement grout is porous. Coffee, pet accidents, mud from the yard and the oil that drifts off a stovetop all soak straight in. Within a few years the kitchen floor shows dark lanes, and the grout under the dining table looks a different color from the grout by the back door.
Most of that comes out with a proper clean. The crew pre-treats the floor, works a brush down each joint and extracts the rinse water so the dirt leaves with it. On grout that is only a few years old, the original color usually comes back almost completely.
Then comes the step the builder skipped. A clear penetrating sealer goes into the clean grout and closes its pores, so the next spill sits on top. For grout that stays patchy after cleaning, or a shade you never liked, Grout Color Sealing coats every joint in one even color and seals it in the same step.
Uptown condos in ZIP 28202
ZIP 28202 is newer and denser still. Its 12,177 housing units have a median build year of 2007, only 4 percent are detached houses, and 29 percent of occupied homes are lived in by the owner. The USDA soil survey maps the center of the ZIP as 100 percent urban land, paved or built over.
In newer homes, tile tends to cover the bathrooms, the kitchen and sometimes much of the main floor. Newer showers are often large walk-in designs with glass panels and a linear drain, and a lot of grout in the pan. Grime in those showers collects at the drain line and along the bottom of the glass.
Where most homes are rented, the gap between tenants is the natural time to deal with grout. Shower and Tub Grout Cleaning followed by sealing gets a unit ready for the next tenant, and color sealing hides the patchwork left by years of different cleaning habits.
Building rules about contractor parking, elevator bookings and work hours vary. Tell us about yours when you book.
Soft water and the gray shower floor
Charlotte Water reports hardness of 32 ppm average (27 to 35 ppm) as calcium carbonate, which is in the soft class. White mineral scale is not much of a problem on Charlotte grout as a result.
Soap film is. Soft water makes soap lather freely and rinse off slowly, so body wash, shampoo and skin oil leave a thin residue on the shower walls after each use. It drains down to the floor and the lowest wall joints and dries there. The residue is tacky, it holds dust and hair, and over time the shower floor goes from light gray to charcoal.
Alkaline cleaners break that residue down, so that is what the crew uses on shower grout here. Each joint gets hand scrubbing, and the rinse water is pulled out by extraction rather than left to drain over the grout. A sealer then keeps the next layer of residue on the surface. A squeegee after each shower and an open door to let the pan dry do the rest.
Glass shower panels add a detail worth knowing. The grout line directly under a fixed panel, and the joint where the panel meets the curb, stay wet longest and get the least scrubbing at home. That is where the darkest staining and the first mildew usually sit, and it is where the crew spends extra time with a narrow brush.
Four seasons on the entry floor
The NOAA normals station at Charlotte Douglas AP, NC, about 6 miles away, records 43.6 inches of precipitation a year and 3.5 inches of snowfall. The low reaches 32 F or colder on 58 days in an average year, from a median first fall freeze on November 3 to a median last spring freeze on March 30.
That mix brings a bit of everything to the front door. Rain carries mud in through the year. On icy mornings, de-icer and grit come in from driveways and steps. In the warm months, sandals and bare feet track in dust and pool water. All of it lands on the tile closest to the door first.
Entry and mudroom tile benefit most from a clean in early spring, once the freezes are over, followed by a fresh seal. A coarse mat outside and a washable one inside each door catch most of the grit before it reaches the grout.
Pets, kids and the kitchen floor
Busy households put tile through more than weather does. Pet bowls drip, litter scatters, kids spill juice, and the kitchen floor near the sink sees water every day. Each of those leaves something in unsealed grout: sugars that attract dirt, proteins that stain, and moisture that keeps joints damp.
Pet accidents are the hardest to shift once they soak in, since the residue sits below the grout surface. The crew uses an enzyme-based pre-treatment on those spots before the general clean, then extracts thoroughly. Some old stains will lighten rather than vanish. For those, color sealing hides what is left and seals the joint so the next accident stays on top.
For daily care, wipe spills while they are fresh, keep a washable mat under pet bowls, and use a pH-neutral floor cleaner. Strong cleaners and bleach strip sealer faster than foot traffic does.
Large tiles, narrow joints and plank porcelain
Newer floors often use large porcelain tiles or long wood-look planks with very narrow grout joints. There is less grout per room than on an older floor, but each joint is thin and shallow, and it shows dirt sharply against a light tile.
Narrow joints need a firm, small brush and a cleaner that can sit long enough to loosen what is packed in. Rotary machines that work well on wide joints can skip over thin ones, so the crew does the detail work by hand. Plank floors also have long, continuous joints that show any uneven cleaning, so they are worked end to end.
Porcelain itself is dense and easy to clean, and it does not need a sealer on its face. The grout does. Natural stone floors and counters are handled differently: they get a stone-safe cleaner, never acid or vinegar, and a sealer made for stone.