The Ultimate Guide to Block Paving Cleaning

Block paving is a popular choice for driveways, patios, and pathways across the UK – and it’s easy to see why. It offers a classic, attractive look, long-lasting durability, and versatility in design. But like anything exposed to the unpredictable British weather, block paving needs care and maintenance to stay looking its best.

This guide explains why block paving cleaning is essential, the benefits of cleaning your block paving, the step-by-step cleaning process, chemicals involved, the importance of re-sanding and sealing, and why you might want to leave it to the professionals.

Cleaning your block paving helps to:

Improve Appearance: Over time, block paving becomes dull due to dirt, algae, and staining. Cleaning restores the original colour and texture, instantly refreshing the look of your driveway or patio.

Prevent Weed and Moss Growth: Weeds and moss thrive in the damp joints between blocks. Cleaning removes the build-up and, when followed by re-sanding and optional biocide treatment, helps prevent regrowth – reducing ongoing maintenance.

Extend the Life of Your Paving: Block paving relies on jointing sand for stability. Regular cleaning and re-sanding prevent movement, dips, and erosion, keeping the surface strong and level for years to come.

Increase Property Value: First impressions count. A clean, well-maintained driveway enhances kerb appeal and can subtly increase the value or saleability of your property.

Prevent Long-Term Damage: Unchecked weeds, moss, and standing water can lead to staining, cracking, and frost damage. Routine cleaning protects against these issues, saving you from costly repairs down the line.

Block paved driveway before cleaning

Before cleaning

Blocked paved driveway after cleaning

After cleaning

The Block Paving Cleaning Process (Step-by-Step)

Cleaning block paving involves more than just blasting it with a pressure washer. A proper cleaning process should include the following steps:

Preparation: Clear the area of furniture, vehicles, and debris. Sweep away loose leaves and soil. If the area is heavily affected by weeds, manually remove them first. Apply a weedkiller 1–2 weeks in advance to help kill roots below the surface. Always check the suitability of the product for block paving and follow safety guidance. If the area has not been overtaken by the weeds it is likely that the pressure washing stage will remove these.

Pressure Washing: Use a turbo nozzle or rotary surface cleaner attached to a professional-grade pressure washer to clean evenly without damaging the blocks.

At Battlefield Exterior Cleaning Ltd we use van-mounted petrol pressure washers which deliver up to 21 litres of water per minute at 4000 psi. These are far more effective than typical domestic machines which reduces the time to complete the job and leaves a superior finish.

Chemical Treatment: If required, apply a suitable patio and driveway cleaner or biocide to the surface. This breaks down algae, moss, and lichens, making the cleaning more effective and reducing regrowth.

Typical chemicals used include:

  • Sodium hypochlorite (bleach-based cleaners): Effective for organic growth but must be handled with care.
  • Biocidal washes: Kill organic matter without causing surface damage.
  • Eco-friendly options: Less aggressive, but may need more time or repeat applications.

Rinsing and Inspection: After cleaning, rinse thoroughly to remove any chemical residues. Inspect the surface for damaged or sunken areas that may require repair.

Re-Sanding: Once the surface is fully dry (usually after 24–48 hours of dry weather), kiln-dried sand is brushed into the joints. This is crucial as it helps stabilise the blocks and prevents weed growth and movement.

Neglecting to re-sand leaves your paving vulnerable to:

  • Block shifting
  • Rapid weed regrowth
  • Accelerated erosion

Why Battlefield Exterior Cleaning Is a Premium Choice:
At Battlefield Exterior Cleaning, we go beyond the standard by using premium kiln-dried sand – not the cheap yellow stuff from the local builder’s yard. We carefully match the sand to complement the colour of your block paving, enhancing the overall look and creating a polished, professional finish that makes your driveway the envy of your neighbours. This attention to detail is just one of the reasons our customers recommend us time and time again.

(Optional) Re-Sealing: Sealing block paving is the final protective layer. A high-quality sealer:

  • Repels water, oil, and stains
  • Enhances the colour of the paving
  • Reduces weed and moss growth
  • Binds jointing sand in place
  • Makes future cleaning easier

There are two main types of sealers:

  • Solvent-based: Deeper penetration and richer colour enhancement
  • Water-based: More eco-friendly, easier to apply, and less odour

Sealants typically last 2–5 years, depending on traffic and exposure.

Driveway cleaning in Leicestershire & Warwickshire

Why You Should Hire a Pro

While DIY cleaning may seem like a money-saver, there are several reasons why hiring a professional is often the better long-term choice:

Access to Commercial Equipment: Professionals use high-powered pressure washers and rotary surface cleaners, giving better, faster, and safer results than domestic alternatives.

Knowledge of Chemicals: They understand which treatments to use (and avoid) for different surfaces and stains – minimising the risk of bleaching, damage, or environmental harm.

Proper Sanding & Sealing: Re-sanding and sealing are often overlooked in DIY attempts. A professional ensures these vital steps are done correctly to prolong the life of your paving.

Saves You Time and Hassle: Cleaning and maintaining block paving is hard, dirty work. A professional team can do the job in a fraction of the time, with much better results.

Longer-Lasting Results: Because professionals can treat the surface with chemicals and sealants, your paving stays clean for longer, giving better value for money.

What to Look For in a Block Paving Cleaning Service

If you’re looking to have your paving professionally cleaned, make sure to choose a reputable company. Here’s what to look for:

  • Experience and reviews: Look at before-and-after photos and customer feedback.
  • Insurance: They should be fully insured for the services they offer.
  • Proper equipment: Look for rotary cleaners, not just pressure washer lances.
  • Eco-conscious options: Ask about the chemicals they use and drainage compliance.
  • Upfront pricing: Quotes should be transparent and include optional extras like sealing.


Block paving is an investment worth protecting. Whether it’s a driveway, path, or patio, keeping it clean not only boosts your property’s appearance but also ensures the longevity of your surface.

Regular cleaning, re-sanding, and sealing can turn back the clock on worn, weedy paving, but getting it right takes time, expertise, and the right tools. While DIY is possible, professional cleaning provides a more thorough, long-lasting, and hassle-free result.

Let Battlefield Exterior Cleaning transform your outdoor spaces.

We serve Leicestershire, Warwickshire and the surrounding areas with expert pressure washing, premium re-sanding, and sealing services that restore your block paving to its former glory – often better than new. If you want quality that lasts and kerb appeal that turns heads, get in touch today for a free quote.

Ready to Book Your Block Paving Clean?

Simply complete the form below or call us on 01827 76 70 76 to discuss our block paving cleaning services and we can provide a free, no obligation quote and can discuss how we can transform your decking into a welcoming outdoor space.

What other exterior cleaning services do we offer?

In addition to our expert block paving cleaning services, we offer a wide range of exterior cleaning solutions to keep your entire property looking its best. This includes professional patio and driveway cleaning to remove stubborn dirt and algae, render cleaning to refresh tired-looking walls, and gutter clearing to help prevent water damage caused by blockages. We also clean soffits, fascias, cladding, and even carry out commercial property cleaning.

Whether you’re preparing your home for sale, getting ready for summer, or simply want to improve your home’s kerb appeal, Battlefield Exterior Cleaning has the tools, experience, and attention to detail to get the job done right.