How to Clean Block Paving Like a Pro – Expert Tips from Advanced Driveway Solutions

Block paving is one of the most popular choices for driveways, patios, and garden paths in the UK. It’s stylish, durable, and can significantly improve your home’s kerb appeal. However, like any outdoor surface, block paving requires regular maintenance to keep it looking fresh and performing well.

If you’re wondering how to clean block paving properly—whether it’s covered in weeds, stained by oil, or dulled by moss and grime—you’ve come to the right place.

At Advanced Driveway Solutions, we specialise in everything from block paving installation to professional cleaning and sealing. In this guide, we’ll take you through a step-by-step method to clean your block paving and keep it looking brand-new for years.

Why Cleaning Block Paving is Important

Cleaning block paving isn’t just about aesthetics—it’s also about preserving its structure and extending its lifespan. Over time, your paving can accumulate dirt, oil, moss, algae, weeds, and other organic matter that not only looks unsightly but can also cause long-term damage.

Here are some key reasons why regular cleaning is essential:

Prevents Weed Growth

Weeds and moss can grow between the joints of your block paving. If left unchecked, roots can push blocks out of place and cause structural problems.

Improves Safety

Slippery algae, moss, and built-up grime can create hazardous walking conditions, especially in wet or icy weather.

Maintains Kerb Appeal

A clean driveway gives your home a polished look. It’s especially important if you’re selling your property or hosting guests.

Enhances Longevity

Dirt and moisture can erode jointing sand over time. Cleaning your paving and replacing the sand helps maintain stability and prevent sinking.

Tools and Materials You’ll Need

To clean block paving effectively, gather the following materials:

Broom or stiff brush
Pressure washer (or hose and scrubbing brush if you prefer a manual method)
Weed killer or white vinegar (natural alternative)
Block paving cleaning solution or mild detergent
Kiln-dried sand for re-jointing

Sealant (optional but highly recommended for long-term protection)

Step-by-Step Guide: How to Clean Block Paving

Here’s a complete guide on how to clean your block paving the right way:

Step 1: Clear Loose Debris

Start by sweeping away leaves, dirt, and surface-level debris with a stiff broom. This will expose areas with moss, weeds, or stains.

Step 2: Remove Weeds and Moss

Apply a weed killer across the joints. For eco-friendly cleaning, white vinegar or boiling water can be used to kill weeds and moss. Let it sit for 24–48 hours for maximum effectiveness.

Step 3: Apply Cleaning Solution (Optional)

If your paving is heavily soiled or stained, apply a dedicated block paving cleaner. Use a soft brush to scrub the solution in, allowing it to break down oil, grease, or organic stains.

Step 4: Pressure Wash

A pressure washer is one of the most effective ways to clean block paving. Start from one edge and work methodically across the surface.

Tip: Use a fan nozzle to avoid dislodging the sand between the joints. Keep the nozzle at a 45° angle and a safe distance (around 20–30cm) from the surface.

⚠️ Avoid using too much pressure on older or damaged paving—it may loosen or crack the blocks.

Step 5: Allow to Dry Completely

Once washed, allow your block paving to dry thoroughly. This is important before moving on to the next step.

Step 6: Re-Sand the Joints

Once the paving is dry, sweep kiln-dried sand into the joints. This locks the blocks in place and prevents weed growth.

Focus on filling every joint completely.
Use a broom and sweep at different angles to make sure the sand settles evenly.

Step 7: Seal the Surface (Optional)

Applying a block paving sealant is a great way to protect your paving from stains, moisture, and weed regrowth. It also gives your paving a rich finish and enhances the colour.

Common Mistakes to Avoid

Here are some mistakes people often make when cleaning block paving:

Using excessive pressure: This can remove too much jointing sand and damage blocks.
Not re-sanding after cleaning: Leaving joints empty makes them vulnerable to weed growth and water erosion.
Skipping weed treatment: Pressure washing alone won’t kill deep-rooted weeds—chemical treatment is necessary.
Sealing too soon: Sealing before the paving is fully dry can trap moisture, leading to staining and mildew.

How Often Should You Clean Block Paving?

We recommend cleaning your block paving at least once or twice a year—ideally in the spring and autumn. However, if you notice:

Water pooling on the surface
Weeds growing rapidly
Oil or rust stains
Fading or general grime build-up

…it’s time for a deep clean.

When to Consider Installing New Block Paving

Sometimes, even the most thorough clean can’t bring damaged paving back to life. Here are signs it might be time to replace it:

Sunken or uneven blocks causing water drainage issues
Cracked or chipped paving stones
Persistent stains that can’t be removed
Mismatched colours or outdated designs
Loose blocks or compromised structure

If you’re facing any of these issues, it might be more cost-effective to install new paving rather than continue repairing the old one.

At Advanced Driveway Solutions, we provide professional block paving installation for driveways, patios, and garden paths. Whether you’re renovating your property or need to replace a worn-out driveway, our expert team delivers durable, stylish results that last.

When to Call the Professionals

There’s nothing wrong with a DIY approach—but for more extensive issues, a professional cleaning service is often the best option. You should call in the pros if:

Your block paving has heavy moss or algae growth
You need oil, rust, or paint stains removed
The surface is uneven, unstable, or damaged
You’re short on time and want fast, professional results

At Advanced Driveway Solutions, we provide:

Block paving cleaning and re-sanding
Block paving sealing
Full block paving installation and repair

We use commercial-grade equipment and materials to ensure a long-lasting, high-quality finish.

Final Thoughts

Knowing how to clean block paving properly can save you money, extend the life of your outdoor space, and dramatically improve the look of your property. With a few tools and a bit of effort, you can keep your paving in great condition all year long.

But if you’re dealing with stubborn stains, extensive damage, or simply want professional help, Advanced Driveway Solutions is just a call away.