Block Paving Driveway Winter Preparation: How to Get Your Driveway Ready for the Cold Months
Summary
Preparing a block paving driveway for winter means clearing it, cleaning it gently and making sure the joints between the blocks are full of sand before the wet and cold weather sets in. Wet leaves and moss make the surface slippery, and joints that have lost their sand let water get in under the blocks, which is how small problems turn into loose or sunken blocks by spring. A few hours of preparation in autumn, plus a plan for ice, keeps the driveway safe and in good condition through the winter.
Key Takeaways
- Wet leaves and moss make block paving slippery, so clearing them is a safety job as much as a tidying one.
- If you use a pressure washer, keep it on a low setting at a shallow angle, then check the joints afterwards and top up any lost sand.
- Block paving relies on the sand in its joints to hold the blocks together, so re-sanding is the most useful thing you can do before winter.
- Sealing isn’t essential, and some manufacturers advise against it, so check the advice for your blocks before you buy a sealant.
- Check your paving manufacturer’s aftercare advice before using salt, and use a de-icer made for paving where they recommend one.
A driveway is easy to forget about until the first icy morning, but autumn is the best time to look after it. The weather is usually still mild enough to work outside, and most of the leaves have come down, so it’s much easier to get the jobs done before the cold sets in.
At Ideal Building & Landscapes, we have over 25 years of experience installing block paving driveways across Solihull, Shirley and Earlswood, so we’ve seen how a driveway that’s been looked after copes with a hard winter compared with one that hasn’t, and which small jobs make the biggest difference.
In this post, we’ve put together the steps worth taking to prepare your block paving driveway for winter, what each one does and what to avoid, so your driveway stays safe to walk on and in good shape for years to come.
Why Winter Is Hard on Block Paving
Block paving copes well with the British weather when it’s in good condition, but winter brings together everything that wears it down. Fallen leaves sit on the surface and hold moisture, and moss and algae grow fastest where a driveway is shaded or where water collects, which is why the same patch near a hedge or a wall tends to turn green every year.
Once that growth is established, the surface becomes slippery underfoot, which matters on a driveway you walk across every day in the dark.
The bigger risk is underneath your block paving. Each block is held in place by the sand packed into the joints around it, and over time rain and cleaning wash some of that sand away. Once the joints run low, water can get down into the bed the blocks sit on, and repeated wetting and freezing through winter gives it plenty of opportunity to do so.
That is when blocks start to rock, dip or work loose, which is why we put so much care into the joints and the base whenever we install a driveway at Ideal Building & Landscapes.
For more on how wet and cold weather affects paved areas, see our post: Weather Challenges: How to Protect Your Paving & Outdoor Structures in Redditch.
How to Prepare Your Block Paving Driveway for Winter
None of the steps in our block paving driveway winter preparation guide need specialist tools, and most can be done in an afternoon on a dry day. Work through them in order, so the surface is clean before you inspect it and fully dry before you re-sand the joints:
1. Clear Away Leaves and Debris
Start by sweeping the whole driveway with a stiff brush, paying particular attention to the edges and anywhere leaves gather against a wall or fence. Leaves left on block paving trap moisture against the surface and break down into the joints, where they give moss and weed seeds somewhere to take hold.
Clearing them regularly through the autumn, rather than once at the end, makes every other step easier and keeps the surface safer to walk on.
2. Clean the Surface Carefully
For most driveways, a good scrub with a stiff brush and soapy water is enough to lift dirt and green staining, and it’s the gentlest option for both the blocks and the joints. A pressure washer is quicker, but it can blast the sand out of the joints if it’s used too close or too hard. The Marshalls aftercare guide advises using a low-pressure setting, holding the lance at a 30° angle rather than pointing it straight down, and checking that the jointing is intact afterwards.
Our approach is to treat a pressure washer as an occasional tool rather than a routine one, because a wash can take some of the sand out of the joints, and that sand has to be replaced before the frosts arrive.
3. Deal With Moss, Algae and Weeds
Moss and algae don’t damage the blocks themselves, but they do make the surface slippery, so it’s worth removing them where people walk. A stiff brush or a wire paving brush will clear most growth, and scraping moss out of the joints with a weeding knife stops it creeping back so quickly.
Weeds in block paving grow from seeds blown into the joints rather than coming up from below, so the best long-term defence is keeping the joints full of sand and the surface clear of debris. Trimming back overhanging plants and keeping the driveway free of standing water will also slow the growth down.
4. Check the Joints and Top Up the Sand
Once the driveway is clean and completely dry, look closely at the joints between the blocks. If the sand has dropped below the top of the blocks, brush fine, dry jointing sand (usually sold as kiln-dried sand) across the surface and work it into the gaps until they’re full, then sweep off the excess.
This is the most important job on the list, because full joints lock the blocks together and stop water getting into the bed underneath.
We’d always rather spend an hour re-sanding a driveway in autumn than lift and relay sunken blocks in spring, because the second job only happens when the first one has been missed.
5. Look for Loose or Sunken Blocks
While you’re working across the driveway, look out for blocks that rock when you step on them or sit lower than the ones around them. Small problems like these tend to get worse over a wet winter, especially where cars turn or park.
The good news with block paving is that individual blocks can be lifted, the base underneath topped up and compacted, and the same blocks relaid, so a repair doesn’t mean a new driveway.
A dip that keeps coming back in one spot usually points to a problem in the base below, and that is worth having looked at before the winter weather makes it worse. At Ideal Building & Landscapes, we’re happy to come out, check the blocks and the base underneath, and tell you honestly whether it needs a repair or can wait.
6. Keep the Drainage Clear
Standard block paving is laid with a gentle slope so that rainwater runs off to a drain or a soakaway rather than soaking through, which means the drainage points do a lot of work over the winter. Clear any leaves and silt from drainage channels and gullies at the edge of the driveway, and check that water isn’t pooling anywhere after heavy rain.
If you have a permeable block paving driveway, where the water drains down through wider joints, keeping the surface clear of leaves and debris helps it keep draining as it was designed to.
7. Think Carefully Before Sealing
Sealants are often recommended as a winter step, but they aren’t essential for block paving, and some manufacturers advise against them altogether: Marshalls does not recommend any form of sealant on its products when they’re installed outside.
A sealant can also make some surfaces more slippery once it’s applied, which is the opposite of what you want in winter, and on new concrete paving it shouldn’t go on for at least 12 weeks. Our approach is to check the manufacturer’s advice for your particular blocks first, and if sealing isn’t recommended, to put that time into cleaning and re-sanding instead.
For more on caring for your driveway through the year, see our post: How to Extend the Life of Your Driveway: Sealing, Cleaning & Care.
8. Plan How You’ll Deal With Ice
It’s worth deciding how you’ll keep the driveway clear of ice before the first cold snap, rather than reaching for whatever is in the shed on a frosty morning. Not every paving product should be treated with ordinary salt, and the Marshalls guide warns never to use common salt to de-ice reconstituted stone or limestone, recommending products made specifically for paving instead.
Check the aftercare advice for your blocks, keep a suitable de-icer and a stiff brush or shovel to hand, and clear snow before it has been driven over and packed into ice.
Why Choose Ideal Building & Landscapes For Your Block Paving Driveway?
Looking after a driveway is much easier when it was built properly in the first place, and that’s where our experience counts. With over 25 years of experience installing driveways, at Ideal Building & Landscapes, we put as much care into the base and the joints as into the blocks on top, because that’s what decides how well a driveway copes with winter after winter.
We provide a 5-year guarantee for all new driveway installations. As a Which? Trusted Trader, we’re fully insured, and one team takes your driveway from the ground preparation through to the finished surface for homeowners around Solihull and the surrounding areas.
Getting Your Driveway Ready Before the First Frost
The best time to prepare a block paving driveway is on a dry day in late autumn, after most of the leaves have fallen and before the first hard frost. Clearing the surface and re-sanding the joints will do more for your driveway than any product, and checking for loose blocks now means any repair can be done before the weather makes it bigger.
If your driveway has reached the point where blocks are sinking or lifting in several places, or you’re thinking about replacing it altogether, we’re happy to take a look and talk you through the options for your property.
Contact Us Today
If you’d like us to look at your block paving driveway before winter, call us on 01564 334 777 or send us a message through our contact page.
Frequently Asked Questions
How Often Should I Clean My Block Paving Driveway?
There’s no fixed schedule. Sweeping regularly through the autumn stops leaves building up, and a more thorough clean once or twice a year is enough for most driveways. Shaded areas and spots where water collects will need attention more often, because that’s where moss and algae grow fastest.
Can I Use Weedkiller on My Block Paving?
You can, but you don’t have to. Weeds in block paving grow in the joints, so a weeding knife or a wire brush will clear most of them, and keeping the joints full of sand makes it harder for new ones to take hold. Avoid ferrous sulphate, which Marshalls warns can stain paving.
Is Block Paving Permeable?
Standard block paving isn’t. Its sand-filled joints seal up over time, so it’s laid with a slope that carries rainwater to a drain or soakaway. Permeable block paving is a different build, with wider joints filled with grit and an open stone base underneath that lets water drain down through it.
Can I Drive on My Driveway Straight After Re-Sanding the Joints?
You can use it as soon as the excess sand has been swept off. The sand settles into the joints as the driveway is used, so it’s worth checking them again after a week or two of traffic and rain and topping up any that have dropped.
