Why Resanding Block Paving Matters – And What Happens If You Skip It
You’ve just had your driveway or patio pressure washed — it looks cleaner, brighter, and brand new again.
But now there are gaps between the blocks, and someone’s telling you it needs “resanding”.
So what does resanding actually do? And is it really necessary, or just an extra charge?
Let’s break it down simply.
🔎 What Is Resanding?
Resanding refers to replacing the kiln-dried sand that sits between the joints of block paving. This sand holds the blocks in place, preventing them from shifting, sinking or becoming loose over time.
When we pressure wash your driveway or patio, we remove dirt, algae and moss — but that process often also dislodges the original jointing sand.
That’s why resanding is a vital final step in the cleaning process.
✅ What Does Resanding Actually Do?
1. Locks the Blocks in Place
The jointing sand stabilises your paving, preventing movement under foot or vehicle weight. Without it, blocks can wobble, drift apart, or sink.
2. Prevents Weed Growth
Fresh kiln-dried sand fills the joints tightly, reducing space for weeds and moss to take root — especially when followed by sealing.
3. Maintains Drainage
Properly sanded joints allow rainwater to drain through the gaps without pooling or creating pressure beneath the blocks.
4. Keeps Your Driveway Looking Finished
Resanding gives your driveway or patio a clean, uniform appearance — it looks tidier, more complete, and professionally done.
❌ What Happens If You Don’t Resand?
Skipping resanding might not cause issues right away, but over time, you’re likely to see:
Loose, rocking, or sinking blocks
Increased weed growth in the gaps
Premature wear and erosion
A higher risk of damage from foot or vehicle traffic
In short: you’ll undo the benefit of the pressure clean if you don’t finish the job properly.
🕒 How Often Should You Resand?
After each pressure washing session – especially deep cleans
Every few years even without cleaning, if joints start looking bare
Before sealing – jointing sand must be in place for sealers to work properly
🧱 Does Every Type of Paving Need Resanding?
No – resanding is specific to block paving (the type with small, individual bricks or blocks). Other surfaces like concrete, tarmac, or natural stone don’t need jointing sand.
👷♂️ Can You Do It Yourself?
Yes — technically. But it’s easy to underfill or use the wrong sand, which means you’ll get poor results. A professional service will:
Use the correct kiln-dried sand
Apply it evenly with the right compaction
Clean up the excess for a tidy finish
Optionally follow up with sealing for longer-lasting protection
✅ Final Thoughts: A Small Job That Makes a Big Difference
Resanding isn’t just a finishing touch — it’s a crucial part of maintaining and protecting your block paving.
If your driveway or patio looks a bit tired or weed-ridden, a clean + resand could be all it needs to look fresh again — without the cost of replacement.
📞 Want Your Driveway Looking Like New?
We offer full block paving restoration, including deep cleaning, resanding, and sealing — with clear pricing and honest advice.
👉 Request a free quote or ask about our seasonal package deals.