Polymeric Sand for Pavers: When to Re-Sand and How It Works
The sand between pavers locks them together and keeps weeds and ants out. Rain, cleaning and time wash it out, and polymeric sand is the usual fix.
What polymeric sand is
It's fine sand mixed with a binder that hardens when wet, so joints stay firmer and resist washout better than plain sand.
Signs you need it
Joints that are visibly low, weeds or ant hills in the gaps, or pavers that rock underfoot.
It goes after cleaning
Pavers are cleaned first, which often removes old joint sand. Then new sand is swept in and activated, and sealing, if wanted, comes after it cures.
What you can try yourself
- Work only on a completely dry surface
- Sweep every grain off the paver faces before wetting
- Follow the bag's watering directions exactly
What to avoid
- Leaving sand residue on top — it can harden into haze
- Applying before rain
- Overwatering, which washes binder out of the joints
When to call a professional
Re-sanding is part of our paver cleaning and sealing work. Send photos of your joints for a quote. See our paver sealing service.
What customers say
"I used First Class Pressure Cleaning to seal my aggregate driveway and they did a fantastic job. It was in rough shape as we had never sealed it before. Lots of salt damage as well from trying to de-ice the last winter storm. It looks so much better now. They even came back the next day for touch-ups on some areas where the winter salts had worn through to the concrete. Very happy with this company and the work they’ve done!"
Dan · Google Review
"Great job done by Wally & crew for 1st Class Power wash. Front & Back porches along with large patio and lots of stairs. Furniture and planters moved and replaced. Sealant added to protect patio. Will use again!"
Judy B. · Google Review
"Highly recommend! Andrew and his team were great at communicating and worked around rainy weather days to clean and seal our stamped concrete around the pool to ensure the product would successfully seal it. They were on time, friendly, and their communication throughout the process was amazing!"
Andrea H. · Google Review
96 Google reviews from homeowners and businesses across Middle Tennessee. Read them all on Google.
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Related guides
- How to Stop Weeds Growing Between Pavers
- Why Sealed Pavers Turn Cloudy or White (and What to Do)
- What an Existing Patio Sealer Changes About Your Quote
- How to Clean a Flagstone Patio
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