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Paving & Exterior Cleaning
Clean and protect paving, paths and outside walls. Algae Remover clears green growth from render, brick, stone and paving, and Chewing Gum Remover lifts gum from pavements.
Then seal: Pavement Sealer stops gum, oil and grease bonding to paving, and Block Paving Sealer protects driveways. Floor Primer is a moisture-tolerant primer for concrete floors.
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Algae Remover
Clear green growth and grime from render and hard surfaces. This ready-to-use biocidal cleaner kills algae,…
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Chewing Gum Remover
Spray it on, let it soften the gum, then scrape it away. Easy-does-it Chewing Gum Remover…
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Block Paving Sealer
Seal block paving, drives and paths with a clear, colour-enhancing finish that resists oil and petrol…
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Floor Primer
Get a strong bond between the substrate and a self-adhesive damp-proof membrane, even on green concrete…
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Pavement Sealer
Seal paving so chewing gum, oil and grease can't bond to it. Stainstop Anti-Gum Pavement Protector…
Choose by surface or job
This range covers two jobs: cleaning outside surfaces, and sealing paving and floors so they stay cleaner. Use the table as a starting point, or use Help me choose. Always patch-test a small, discreet area first.
| Surface or job | Product | Good to know |
|---|---|---|
| Green algae, moss and lichens on render, including K-rend | Algae Remover | Ready to use, 5 litres, from £19.79 incl. VAT |
| Green growth and grime on brick, stone and concrete | Algae Remover | Spray on, allow contact time, then rinse |
| Algae and moss on paths, paving, decking and tarmac | Algae Remover | Avoid pooling on flat surfaces |
| Traffic film and grime on cladding, uPVC and awnings | Algae Remover | Safe on uPVC, plastics and polycarbonate |
| Chewing gum on pavements, entrances and steps | Chewing Gum Remover | Spray, leave to soften, then scrape. Flammable: keep away from heat and flames |
| Keeping gum, oil and grease off pedestrian paving | Pavement Sealer | Invisible; about 5 m² per litre per coat |
| Driveways and block paving: oil, petrol and tyre marks | Block Paving Sealer | Clear finish that brings out paver colours |
| Priming green or damp concrete before a self-adhesive membrane | Floor Primer | Touch dry in around 30 minutes |
Graffiti on outside walls? See our graffiti removers, and anti-graffiti paint and coatings to stop it coming back.
Cleaning algae and green growth from render, brick and paving
Our algae remover is a ready-to-use façade and render cleaner. Its biocide kills algae, green moss and wall lichens and breaks down mould and mildew. Paramagnetic cleaning technology cuts through dirt, grime, traffic film and gutter stains, and helps the surface repel future soiling.
It is made for soft wash cleaning, so a pressure washer is optional.
It is a cleaner, not a sealer or protective coating. If you plan to paint or seal afterwards, rinse thoroughly and let the surface dry fully first.
Chewing gum on pavements and entrances
Chewing Gum Remover is a ready-to-use 500 ml spray that softens chewing gum, candle wax and other gummy residue so it can be scraped away. It works on pavements and most hard surfaces, and on carpets and upholstery indoors. It is flammable, so keep it away from heat and flames.
Sealing paving and driveways
Pavement Sealer is an invisible, breathable treatment for concrete, brick and natural stone paving. Once it is on, chewing gum, oil and grease bond only weakly, so in most cases routine sweeping lifts them away, and its fungicide kills moss, lichen and algae. It suits high streets, precincts and the paving outside takeaways. Allow about 5 m² per litre per coat and 24 hours before the area is used.
Block Paving Sealer is a clear sealer for block paving, driveways, paths and pavements. It resists oil, petrol, grease and brake fluid, protects against tyre marks and brings out the colour of the pavers.
For floors, Floor Primer is a moisture-tolerant primer for green concrete, damp substrates, masonry and wood before a self-adhesive damp-proof membrane. It is touch dry in around 30 minutes.
How to apply and rinse safely
- Patch-test first, especially on coloured render, painted surfaces and fabrics.
- Protect planting: pre-wet nearby vegetation, stop run-off reaching drains and watercourses, and rinse planting afterwards.
- Apply Algae Remover as supplied. Contact time depends on the conditions and how heavy the growth is. Don’t let it dry; reapply or leave it longer on stubborn growth.
- Agitate stubborn areas with a brush or cloth, then rinse or pressure-wash away the loosened dirt.
- Apply sealers to a clean, dry surface, and don’t apply them outdoors if rain is expected while they dry.
- Chewing Gum Remover is flammable. Keep it away from heat, sparks and naked flames.
- Wear suitable gloves and eye or face protection, and read each product’s safety data sheet.
For councils, schools, housing and facilities teams
Algae Remover is designed for FM teams, building managers and building cleaning professionals, and suits maintenance on public buildings, campuses and estates. Pavement Sealer comes in 5 and 25 litres for town centres, precincts and forecourts. For a large façade, a high street or a planned maintenance programme, contact our team and we’ll help you estimate quantities.
Frequently asked questions
How do I remove green algae from render?
Patch-test a discreet area, then spray Algae Remover onto the render as supplied. Leave it long enough for the biocide to act without letting it dry, agitate stubborn areas with a brush or cloth, then rinse or pressure-wash. It suits K-rend and other renders, but test coloured render first.
Do I need a pressure washer to clean algae off walls and paving?
No. Algae Remover is made for soft wash cleaning: spray it on, allow contact time, then rinse. A pressure washer is optional, but it speeds things up on large or heavily soiled areas.
Can I clean algae off paths, paving and decking?
Yes. Algae Remover works on horizontal surfaces such as decking, tarmac, walkways and hard landscaping as well as on walls. Avoid pooling, and don’t let it dry during the contact time.
Is algae cleaning safe near uPVC windows, plastics and plants?
Algae Remover is safe on uPVC, plastics and polycarbonate, and on fabric awnings and canopies. Test a small area first. Protect planting by pre-wetting it, stopping run-off reaching watercourses and rinsing it after cleaning.
How much Algae Remover do I need?
There is no fixed coverage rate. It depends on the surface, how porous it is and how heavy the growth is. It comes ready to use in 5 litres, from £19.79 incl. VAT. For a large façade or planned programme, contact our team for an estimate.
How do I remove chewing gum from paving?
Spray Chewing Gum Remover onto the gum, leave it to soften and scrape it off. Then apply a further coat and work it in with a non-scratch scouring pad. Treat the clean, dry paving with Pavement Sealer to stop new gum bonding.
Pavement Sealer or Block Paving Sealer?
Pavement Sealer is an invisible, breathable treatment for pedestrian paving that stops chewing gum, oil and grease bonding, with a fungicide against moss and algae. Block Paving Sealer is a clear sealer for driveways and block paving that resists oil, petrol and tyre marks and brings out the paver colours.