Brick, Concrete and Grout Cleaner

Heavy Duty Results on Masonry Surfaces

Brick and concrete are built to last, but they're not immune to staining. Mortar smears left after pointing or laying, efflorescence creeping across a newly finished wall, grout residue on freshly laid paving, rust run-off, and years of ingrained grime are all problems that a standard outdoor cleaner won't touch.

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GK Pro 5Ltr (Professional use only) GK Pro 5Ltr (Professional use only)
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Regular price£84.00
£70.00 Exc VAT
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GK Black Spot Remover 5Ltr GK Black Spot Remover 5Ltr
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Regular price£19.99
£16.66 Exc VAT
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GK Concentrated Fungicidal Wash 1Ltr GK Concentrated Fungicidal Wash 1Ltr
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Regular price£7.20
£6.00 Exc VAT
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GK EFF OFF™ Efflorescence Remover 5Ltr GK EFF OFF™ Efflorescence Remover 5Ltr
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Regular price£34.98
£29.15 Exc VAT
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GK Stinky Pinky Rust Remover GK Stinky Pinky Rust Remover
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Regular price£11.99
£9.99 Exc VAT
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GK Oil Out Oil Stain Remover 5Ltr GK Oil Out Oil Stain Remover 5Ltr
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Regular price£82.80
£69.00 Exc VAT
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GK Multi-Surface Cleaner & Sanitiser GK Multi-Surface Cleaner & Sanitiser
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Regular price£22.79
£18.99 Exc VAT
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Everbuild ASBO Graffiti Remover Everbuild ASBO Graffiti Remover
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Regular price£10.21
£8.51 Exc VAT
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GK Concrete & Grout Residue Remover GK Concrete & Grout Residue Remover
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Regular price£40.80
£34.00 Exc VAT
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Tetrion Graffiti Remover Tetrion Graffiti Remover
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Regular price£13.32
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Frequently Asked Questions

What is the best brick cleaner for outdoor use?

For outdoor masonry affected by mortar residue, efflorescence, or grout haze, you need a dedicated, specialist masonry cleaner rather than a general-purpose outdoor product. GK Concrete & Grout Residue Remover is formulated for exactly these conditions and is one of the best brick cleaners for outdoor masonry available to UK buyers.

Can I use brick cleaner on concrete?

Yes. Our product works on both brick and concrete surfaces. It's an effective cleaner for concrete paths, floors, driveways, and walls, as well as brick and stone. Always check the product page for surface compatibility and recommended dilution before applying.

What is the best concrete cleaner for removing grout haze?

Grout haze, the milky residue left on paving or brickwork after grouting, requires a cleaner that can break down cement-based deposits. Our Concrete & Grout Residue Remover is specifically designed for this application and is one of the best concrete cleaners in the UK for post-installation clean-down.

Is this suitable as a commercial concrete cleaner for large areas?

Yes. While available to domestic customers, our products are used professionally across commercial landscaping and construction projects. For large-scale applications, contact us to discuss volume and application logistics.

How soon after laying should I apply a mortar and brick cleaner?

For best results, treat mortar smears and grout residue as soon as the material has cured sufficiently, typically 24 to 48 hours after laying. The longer mortar or grout is left on a surface, the harder it becomes to remove. Always follow the product guidance on dilution and dwell time for the surface in question.

Will brick cleaner damage my pointing or jointing?

When used at the correct dilution and for the recommended dwell time, our brick and mortar cleaner is safe on fully cured pointing and jointing. Avoid applying to freshly pointed surfaces that haven't had adequate time to cure.

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