If weeds keep coming up between your pavers, or you’re sweeping up little piles of sand from ant hills every morning, the weeds and the ants aren’t the problem. They’re the symptom. The real problem is underneath them, and until you fix that, they’ll keep coming back no matter how much you pull or spray.
We’re Jax Exterior Cleaning & Pavers, a Jacksonville paver company that’s been doing this since 2019. Here’s what’s going on and how it gets fixed for good.
The Real Problem Is Your Joint Sand
The sand packed between your pavers isn’t decoration. It’s what locks the whole surface together and keeps everything sitting flush and tight.
When that sand is full and firm, there’s nowhere for a weed seed to land and nowhere for an ant to tunnel. There is simply no open space. When the sand drops below the surface, you’ve created a narrow little planter box between every single paver — and Florida will fill it. Seeds blow in, rain waters them, and they root. Ants find the loose sand and move in because it’s easy digging.
So weeds and ants are not really a pest problem. They’re a joint sand problem wearing a costume.
Why Joint Sand Washes Out in Jacksonville
This happens faster here than almost anywhere. A few reasons:
- Summer rain. A single Jacksonville afternoon storm can move an enormous amount of water across a driveway, and every bit of it is looking for somewhere to go. It carries joint sand with it.
- Pressure washing done wrong. A high-pressure tip held too close will blast joint sand straight out. A lot of driveways lose more sand to a bad cleaning than to a year of weather.
- Sandy soil and settling. Northeast Florida sits on sand. Bases shift, water finds low spots, and joints open up.
- Nothing holding it in. Unsealed joint sand is loose sand. It has no reason to stay put.
Why Pulling and Spraying Doesn’t Last
Pulling weeds takes out the plant and leaves the empty joint. Spraying kills what’s growing today and leaves the empty joint. Either way you’ve still got a gap, and the next seed that blows into your driveway lands in exactly the same spot.
Same with ants. Sweeping away the sand pile doesn’t touch the tunnel it came out of. Killing the colony doesn’t fill the space that made your driveway attractive to them in the first place — another colony just moves in.
You can stay on that treadmill for years. Most people do. The fix is to take the space away.
How We Actually Fix It
It’s the same process whether you came to us about weeds, ants, or sand washing out, because it’s the same underlying issue.
1. We clean the pavers and the joints
Everything growing gets removed, along with the dirt, algae, and old debris packed into the joints. This part matters — new sand won’t set correctly on top of old organic buildup.
2. We refill the joints with silica paver joint sand
Fresh sand goes in and gets worked down until the joints are full and firm all the way through, not just skimmed across the top. It comes in tan, black, brown, and grey, so we can match your pavers or deliberately contrast them.
3. We seal it
We use a premium two-part water-base urethane, two coats as our standard. Sealing locks the joint sand in place so the next storm doesn’t undo the work, and it protects the pavers themselves at the same time. Our standard finish is a color-enhancing wet look that brings the original color back; matte is available if you’d rather skip the shine.
Our sealer carries a 3-year warranty.
Why We Don’t Use Polymeric Sand
A lot of companies reach for polymeric sand for exactly this problem. We don’t, and we get asked about it often enough that it’s worth explaining.
We use silica paver joint sand and then seal over it. Done properly, it sets up just as hard as polymeric — often harder — without the failure modes polymeric is known for. When polymeric sand goes wrong, it goes wrong in ways that are ugly and expensive to undo.
Our way, the sand is locked in by the sealer, and when it’s time to reseal down the road, you’re not fighting a hardened layer to get there.
Catch It Before It Becomes a Repair
This is the part most people don’t know, and it’s the reason we’d rather see you early.
Joint sand isn’t just filler — it’s structural. It transfers weight from one paver to the next so the surface acts like one piece instead of a few hundred loose ones. Once those joints run low, the pavers start moving independently. They rock, they settle, edges start lipping up, and now you don’t have a sealing job anymore. You have a repair job: pulling pavers, fixing base, relaying, then sanding and sealing anyway.
Weeds in your joints are an early warning. They’re telling you the sand is gone while the fix is still cheap.
Will They Come Back?
A stray weed at the very edge of a driveway now and then? Sure — that’s a seed landing in the dirt beside your pavers, not in the joints. That’s not a failure.
What stops is weeds coming up through the surface everywhere and ants rebuilding hills every night. Once the joints are full and sealed, there’s nothing there for either of them.
We recommend a cleaning every year to keep organic growth from getting established, and resealing every two and a half to three years.
Areas We Serve
We cover Jacksonville and about 25 miles out — St. Johns County, Ponte Vedra, Nocatee, the Beaches, Mandarin, Fleming Island, Yulee, and Arlington. We do not currently service the westside or northwest Jacksonville, and we work in Florida only.
Frequently Asked Questions
Will sealing really stop the weeds for good?
Sealing on its own won’t. Sealing over properly refilled joints will, because there’s no open space left for anything to root in. The re-sanding is the part that does the work — the sealer is what keeps it that way.
Do I need to kill the weeds before you come?
No. We remove everything growing as part of the cleaning. Don’t spend your Saturday on it.
Do you use polymeric sand?
No. We use silica paver joint sand and seal over it. It sets up just as hard as polymeric, often harder, and it’s far easier to maintain over the long run.
My pavers are also sinking and uneven — is that the same job?
Not quite, but it’s related, and we do both. If pavers have already settled or lifted, that’s paver repair — we pull the affected area, fix the base, relay, then re-sand and seal. We’ll tell you at the estimate which one you’re looking at.
How much does it cost?
It depends on the size, condition, and layout of the area, so we give you an exact number at a free on-site estimate.
Do I have to be home?
Nope. We just measure and look, and it takes about 5–10 minutes.
Get a Free Estimate
If weeds or ants are coming up through your pavers, get it looked at while it’s still a sand-and-seal job. Fill out our free estimate form or call 904-444-9190.
Estimates are free, you don’t have to be home, and it takes about 5–10 minutes for us to measure and look at the job. Licensed and insured, in business since 2019, with 200+ Google reviews at 4.7 stars.