Concrete and pavers are porous. Every rain carries red clay, pollen and dirt into the surface, and every oil drip soaks in a little deeper. Cleaning gets them looking good again. Sealing helps them stay that way.
Driveways, walkways, patios, pool decks and paver surfaces around Statesville should be sealed only after a thorough cleaning, and only once the surface is fully dry.
Why seal concrete and pavers
- Stains sit on top instead of soaking in. Red clay, oil, leaf tannins and rust have a harder time getting into a sealed surface, so spills wipe or rinse off more easily.
- Paver joints hold together. On pavers, a joint-stabilizing sealer binds the sand between the stones so rain and cleaning don't wash it out.
- Fewer weeds and ants. When joint sand stays put, there's less room for weeds to root and for ants to dig.
- Color holds up. Sun fades pavers and stamped or colored concrete over time. Sealer slows that down, and some sealers bring out a richer color.
- Easier cleaning later. Mildew and algae still grow on shaded slabs in our humid summers, but they come off a sealed surface with less work.
Signs your surface needs sealing
- Water soaks in right away instead of beading up.
- Paver joints are low, empty or sprouting weeds.
- Pavers have started to shift or rock when you step on them.
- Colored or stamped concrete looks chalky or faded.
- Red clay or oil spots keep coming back right after a cleaning.
How sealing works, step by step
Deep clean first
Sealer locks in whatever is on the surface, so the cleaning has to be thorough. A good job starts with a full driveway and concrete cleaning: pre-treatment for mildew and algae, degreaser on oil spots, rust treatment where needed, and an even clean with a rotary surface cleaner. On pavers, the crew uses lower pressure so it doesn't blast out more sand than necessary.
Re-sand paver joints
After cleaning, paver joints usually need new sand. The crew sweeps joint sand into the gaps and compacts it so the stones are locked in place before the sealer goes on.
Let it dry completely
This is the step people rush, and it's the one that matters most. Sealer applied over damp concrete or pavers can turn cloudy or white and may not bond. After cleaning, the surface needs time to dry all the way through. In Statesville, that usually means at least a day or two of dry weather, and longer in humid stretches, on shaded slabs or after rain. A careful contractor checks before sealing and reschedules if it isn't ready.
Apply the sealer
The sealer goes on evenly with a sprayer or roller, kept off siding, landscaping and anything that shouldn't get coated. The product depends on the surface: a penetrating sealer for plain concrete, or a joint-stabilizing sealer for pavers. The contractor should explain the options and what each one looks like when it's done.
Cure time
You'll need to stay off the surface while it cures. Foot traffic usually comes back sooner, and cars later. The contractor will give you exact timing for the product used and should plan around the weather so rain doesn't hit fresh sealer.
How often to reseal
It depends on the sealer, the sun and how much traffic the surface gets. Penetrating sealers on concrete often last several years. Paver and film-forming sealers usually need a fresh coat sooner, especially on driveways. A simple test: sprinkle water on the surface. If it soaks in quickly instead of beading, it's time to look at resealing.
What a good contractor won't do
- They won't seal a surface that isn't fully clean and dry. It's the fastest way to a cloudy finish.
- They won't seal fresh concrete before it has cured. Ask whoever poured it how long to wait.
- They won't promise a stain that's already in the concrete will disappear under sealer. Sealer protects what's there, it doesn't hide it.
Related services
Sealing pairs naturally with driveway and concrete cleaning, since every sealing job starts there. If your patio sits next to a deck that's turned gray, deck and fence cleaning can be done on the same visit. For storefront sidewalks and entryways, see our commercial pressure washing page.
The price depends on the size of the area, whether it's poured concrete or pavers, how much cleaning and re-sanding it needs, and the sealer you choose. Our pressure washing cost guide explains what sets the price. Call (980) 223-3324 for a free quote.
Questions people ask
How long after cleaning can concrete be sealed?
Only once it's completely dry. In Statesville that's usually at least a day or two of dry weather, and longer when it's humid, shaded or after rain. Sealing damp concrete can leave a cloudy finish.
Does sealing stop weeds between pavers?
It helps a lot. A joint-stabilizing sealer binds the sand between pavers so it doesn't wash out, which leaves less room for weeds to root. It won't stop every seed that lands, but it cuts down on them.
Will sealer make my driveway slippery?
Penetrating sealers barely change the surface feel. Some film-forming sealers can be slicker when wet, especially on pool decks, and an anti-slip additive can help. Ask the contractor to talk through the options for your surface.
How often should I reseal?
It depends on the product and traffic. Penetrating sealers on concrete often last several years, while paver sealers usually need a fresh coat sooner. If water soaks in instead of beading up, it's time to reseal.