Clay bricks and pavers are celebrated for their resilience and beauty, forming the backbone of countless stunning landscapes and architectural designs. However, even the most robust materials require a little care to maintain their pristine appearance over time. With the right knowledge and techniques, you can keep your new Krause Bricks looking their best for generations.

This guide will walk you through common cleaning challenges and provide effective solutions to ensure your clay bricks and pavers continue to only enhance your property's appeal, and not detract.

Tyre marks on pavers

Tyre marks can be a frustrating eyesore on driveways and paved areas. These dark streaks are often caused by rubber transfer and can be stubborn to remove if not tackled correctly.

For light marks, a stiff brush with hot soapy water can often do the trick. For more persistent stains, a mild degreaser designed for concrete or paving surfaces can be effective. Apply the degreaser according to the manufacturer's instructions, allow it to penetrate for a few minutes, then scrub thoroughly with a brush and rinse well with water. Always test any cleaning product on an inconspicuous area first to ensure it doesn't discolour your pavers.

Removing organic growth (moss, algae, lichen)

Damp, shady areas are prone to developing organic growths like moss, algae, and lichen, which can make surfaces slippery and detract from their appearance.

For moss and algae, a simple solution of diluted bleach (1 part bleach to 10 parts water) or a specialised outdoor cleaning solution can be applied. Allow it to sit for a short period (refer to product instructions for specific timings), then scrub with a stiff brush and rinse thoroughly. For more resilient lichen, a proprietary lichen remover may be necessary, often requiring a longer dwell time. Always ensure proper ventilation and wear protective gear when using these solutions. Regular sweeping and ensuring good drainage can help prevent future growth.

Sealing your pavers

Sealing your pavers is an excellent way to protect them from stains, reduce efflorescence, and enhance their colour. While not a cleaning technique, it's an important step that significantly helps to keep surfaces clean.

Before sealing, ensure your pavers are thoroughly clean and dry. There are various types of sealants available, including penetrating sealers (which offer protection without changing the appearance) and topical sealers (which can create a wet-look finish). Choose a sealant appropriate for your paver type and desired finish. Always follow the manufacturer's application instructions carefully for the best results and longevity. Re-sealing is typically recommended every few years, depending on traffic and exposure.

Removing mortar stains

Fresh mortar stains can be a common issue during construction or renovation. The key is to address them as quickly as possible.

For fresh, wet mortar, gently scrape it off with a trowel or stiff brush and rinse the area immediately with water. For hardened mortar stains, extreme care is needed to avoid damaging the brick. Specialised brick and mortar cleaners, often acid-based, are available. These should be used with extreme caution, following manufacturer instructions precisely, diluting as recommended, and testing on an inconspicuous area first. Always wear appropriate personal protective equipment and ensure thorough rinsing after application. For severe or widespread stains, consulting a professional brick cleaner is advisable.

Hand cleaning techniques for delicate areas

Sometimes, power tools are too aggressive, and a gentle touch is required, especially for older or more delicate clay bricks, or intricate details.

Hand cleaning involves using a soft-bristled brush, water, and a mild, pH-neutral detergent. This method allows for precise control and reduces the risk of damaging the brick surface or mortar joints. It’s ideal for removing light dirt, cobwebs, or minor blemishes. For stubborn spots, a little more elbow grease might be needed, but always prioritise gentle scrubbing over harsh abrasion.

High-pressure cleaning - when and how to use it

High-pressure cleaning (or power washing) can be very effective for quickly cleaning large areas of durable brick and paving. However, it must be used with caution.

Avoid high pressure on soft or historic bricks: Excessive pressure can damage the brick face, remove mortar, or drive water deeper into the material, leading to issues like efflorescence.
Use the right nozzle and pressure setting: A wide-angle nozzle and a lower pressure setting are generally safer. Start with the lowest pressure and gradually increase if needed, maintaining a safe distance from the surface.
Use a consistent sweeping motion: Move the spray in a consistent, sweeping motion to avoid concentrated blasts that can etch the surface.
Always test a small area: Always test on an inconspicuous area first to ensure it doesn't cause damage or discolouration.
Be mindful of mortar joints: Directing high pressure directly at mortar joints can erode them.

Cleaning internal brickwork

Internal exposed brick walls add character and warmth to a space. Cleaning them differs slightly from external brickwork due to less exposure to the elements.

Often, a simple vacuuming with a brush attachment or a dry microfibre cloth is sufficient to remove dust and cobwebs. For any marks or light stains, a damp (not wet) cloth with a mild, pH-neutral soap can be used, ensuring you don't over-wet the brick, which could lead to moisture issues or efflorescence indoors. Always blot dry rather than rub. Avoid harsh chemicals that could leave residues or discolour the bricks.

By following these guidelines, you can ensure your Krause Bricks continue to be a source of pride, standing strong and beautiful for many years to come. For more information on our range and expert advice, visitkrausebricks.com/range.