What Are the Best Exterior Concrete Finishes for a Charlotte Home?

The size is settled and so is the budget, more or less. Then somebody asks what finish you want on it, and you realize you've been picturing gray concrete and nothing more specific. So you scroll photos, and every finish looks good in a photo.

What a photo can't tell you is whether your patio is like an ice rink when it gets wet, or how it feels under bare feet in July, or what it asks of you three years from now. Those are the things people end up regretting. There are five finishes worth knowing for the outside of a Charlotte house, and which one is best depends almost entirely on where it's going.

A Broom Finish Is the Default for Good Reasons

Most exterior concrete in Charlotte gets a plain broom finish, and it earned that spot. A stiff broom is dragged across the fresh surface in one direction, and the fine ridges it leaves give shoes and tires something to grip when it rains. It's also the least expensive finish we pour, at $6 to $12 a square foot installed, and it asks very little of you afterward.

One homeowner weighing the two for a pool put it about as well as we could: if you are going for looks then stamped concrete, and if you are going for safety, low maintenance, cool on your feet, the brushed concrete. The trade is that plain gray broom looks like exactly what it is.

That's where a colored broom finish comes in. The color is mixed into the concrete itself, so it runs all the way through the slab, and the surface is broomed the same way. You get a warm tan or a soft charcoal in place of gray, with the same grip and close to the same upkeep. Plenty of people pick it once they've stood on it next to the others.

The one finish to keep off exterior flatwork is a smooth steel trowel. It's right for a garage, where you want to roll a floor jack, but outside it has nothing for a wet shoe to hold. We hear from people whose front patio was given a finish like a garage floor decades ago, and it gets crazy slippery when wet.

Stamped Concrete When the Look Is the Point

Stamped concrete is pressed with mats while it's still soft so it reads as slate, flagstone, cobblestone or wood plank. It's colored twice, once in the slab and once in the release that settles into the low spots. Done well, it gives you the look of stone in one surface with no joints to weed, at $12 to $22 a square foot.

It also divides people more than any other finish. Some say stamped looks cheesy, and others have had a stamped and colored patio for years and wouldn't change a thing. The ones that disappoint are usually a single flat color in a repeating pattern with no border, and we went through what separates the two in our comparison of stamped and regular concrete.

The honest costs are slip and upkeep. Sealer is what makes stamped color look rich, and sealer is also what makes it slick, so anywhere feet get wet it needs anti-slip grit mixed in. It needs resealing every two to three years in Charlotte too, which we covered when we wrote about how often stamped concrete needs it. When someone says that in hindsight they wish they hadn't done stamped, it's nearly always the maintenance they're talking about.

Exposed Aggregate Belongs Out Front

With exposed aggregate, the top layer of paste is washed away before it hardens, which leaves the stone in the mix showing at the surface. It's grippy and hard wearing. People who have it on a driveway say exposed aggregate hides dirt and oil stains better and hides cracks better than plain concrete, and that matches what we see around here.

Where it goes wrong is under bare skin. "I hate walking on it barefoot" is the complaint that comes up again and again, and it's a miserable surface to kneel on. If you work on your own cars, you can't roll a creeper or a floor jack on it either. So we suggest it for driveways and front walks and steer it away from patios and pool decks. It needs sealing as well, because the stones in an unsealed slab start popping loose after a few freeze nights.

Stain Adds Color Without Changing the Surface

Stain is color applied to concrete that has already cured, either an acid stain that reacts with the slab or a water-based one that soaks in. The result is mottled and deep, closer to leather or old stone than to paint. Because it goes on after the fact, it's the one decorative finish here that works on a patio you already own, and we wrote a whole piece on staining a slab that's already there.

Stain is translucent, though, so it shows the slab's history. Every patch and pour line stays visible underneath it. On new concrete or a clean, sound older slab that's part of the charm. On a slab that has been repaired a lot it works against you, and the only way to know the true color is a sample on your own concrete.

Which Finish Goes Where Around a Charlotte House

When we talk through the decorative options at an estimate, we go by location, because the same finish can be right in one spot and wrong twenty feet away.

On a driveway, broom or colored broom suits most homes, and exposed aggregate is worth a look if you want more character and nobody will be lying under a car on it. A front walk can take any of the three, including stamped. It's a small area, so it's an inexpensive place to spend on looks.

The back patio is where bare feet and chairs live, so we'd skip the exposed aggregate there and choose between colored broom, stamped and stain. Around a pool it's broom, or a stamped texture with anti-slip in the sealer. Steps get a broom finish.

Sun matters more here than people expect. A dark sealed slab in full afternoon sun gets hot on your bare feet by midsummer, so a patio or pool deck that faces south or west does better in a lighter color. Check the neighborhood rules as well, because HOAs in Ballantyne, Steele Creek and Huntersville often rule on colors in the front yard, so read the covenants before you settle on a charcoal driveway.

Whatever you pick, the finish is only the surface. Concrete always cracks no matter what, as people who have been through it will tell you, and whether it cracks neatly inside a joint or across the middle of the patio comes down to the base and the joints underneath. On Mecklenburg County's red clay that means a compacted stone base and control joints cut on schedule.

What are the best exterior concrete finishes?

For most Charlotte homes a broom finish is the best all-around exterior finish. It grips in the rain, and it costs the least to pour and to keep up. Stamped concrete is the best choice where looks matter most, exposed aggregate suits driveways and front walks, and stain suits a sound slab you want to add color to. The right one depends on whether the surface will see bare feet, cars or pool water.

Is exposed aggregate concrete worth it for a driveway?

It can be, since a driveway is where it does best. It grips well and it hides oil spots and hairline cracks better than plain concrete does. It also costs more than a broom finish, it needs sealing so the stones stay put, and it's uncomfortable to kneel or lie on if you do your own car work.

How do I make smooth troweled concrete more grippy?

A sealer with anti-slip grit mixed in is the quick fix, and it helps, though the grit wears off with traffic and has to be renewed when the slab is resealed. The lasting fix is to resurface the slab with a thin overlay that's given a broom texture, which works as long as the concrete underneath is sound.

Stand on It Before You Decide

Every finish here trades something, and the easiest way to find out which trade you can live with is to put your feet on them. When we come out for an estimate we bring samples of each finish, sealed and unsealed, so you can stand on them in your own yard and hold the colors against your own brick. The finish, colors and pattern you choose go on the written proposal by name.

We pour and finish decorative concrete across Charlotte and the towns around it. If you'd like to see the samples in person, give us a call at (704) 387-3064 and bring the photo you're trying to match.