10 Best Patio Slab Gap Filler in the UK 2025
Updated on 29/06/2025
#1
Recommended
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- Self-setting jointing compound for quick and easy patio and path jointing, covering up to 20m² with a 15kg pack.
- Incorporates Active Resin Technology for enhanced durability, suitable for jointing patios and block paving.
- Premixed for convenience, can be applied in various weather conditions, even while raining; works well with patio sealers.
- User-friendly ready mixed grout, ideal for builders and DIY enthusiasts; brush-in formula saves time.
- Compatible with various surfaces including stone, slate, clay, and concrete; minimum joint dimensions of 20mm depth and 5mm width are required.
- To store opened grout, pour unused product back into the tub and cover with 50mm of water for stability over months, ensuring it remains covered to prevent hardening.
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- Self-setting jointing compound for quick and easy patio and path jointing, covering up to 20m² with a 15kg pack.
- Incorporates Active Resin Technology for enhanced durability, suitable for jointing patios and block paving.
- Premixed for convenience, can be applied in various weather conditions, even while raining; works well with patio sealers.
- User-friendly ready mixed grout, ideal for builders and DIY enthusiasts; brush-in formula saves time.
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#2
Value for Money
11% Off
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- Easy-to-use joint filler for paving, suitable for professionals and DIYers.
- Compatible with various paving materials like stone, limestone, slate, and granite; not recommended for slabs less than 25mm.
- No mixing required; simply wet the surface, pour the compound, and sweep into the joints for a smooth finish.
- Each tub contains 12.5kg of ready-mixed compound; coverage may vary based on joint size; retain unused product by submerging it in water.
- Manufacturer specializes in outdoor hard-landscaping products designed to simplify construction and maintenance tasks.
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- Easy-to-use joint filler for paving, suitable for professionals and DIYers.
- Compatible with various paving materials like stone, limestone, slate, and granite; not recommended for slabs less than 25mm.
- No mixing required; simply wet the surface, pour the compound, and sweep into the joints for a smooth finish.
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#3
37% Off
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- Compatible with various outdoor surfaces, including patios, pathways, and driveways.
- Covers areas up to 20m² for joins of 5mm wide and 20mm deep, ensuring a seamless finish.
- Features high resistance to water and rain, allowing application even in wet conditions, while remaining permeable.
- Provides a strong, weed-resistant joint that maintains its integrity over time.
- Available in a 14kg Deep Grey option and other colors, covering different areas based on joint size and paving material.
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- Compatible with various outdoor surfaces, including patios, pathways, and driveways.
- Covers areas up to 20m² for joins of 5mm wide and 20mm deep, ensuring a seamless finish.
- Features high resistance to water and rain, allowing application even in wet conditions, while remaining permeable.
- Provides a strong, weed-resistant joint that maintains its integrity over time.
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#4
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- Suitable for use on block paving for footpaths, patios, indoor floors, and driveways.
- Durable finish that resists cracking and is waterproof.
- Prevents weed growth and insect movements due to its hard finish.
- Best for joints between 2 and 5 mm with light vehicle traffic.
- Maintains a consistent appearance as it weathers naturally with the paving.
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- Suitable for use on block paving for footpaths, patios, indoor floors, and driveways.
- Durable finish that resists cracking and is waterproof.
- Prevents weed growth and insect movements due to its hard finish.
- Best for joints between 2 and 5 mm with light vehicle traffic.
- Maintains a consistent appearance as it weathers naturally with the paving.
#5
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- Easy to spread kiln dried sand for enhancing garden aesthetics and ensuring a smooth finish for paving slabs.
- Prevents movement of paving slabs, providing a stable foundation for garden paths and driveways.
- Improves water drainage by filling gaps between slabs with fine sand for effective jointing.
- Compatible with various paving materials, ensuring effective results for both budget and premium options.
- High-quality polymeric sand in a waterproof 20kg bag, ideal for DIY jointing projects and durable for long-term use.
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- Easy to spread kiln dried sand for enhancing garden aesthetics and ensuring a smooth finish for paving slabs.
- Prevents movement of paving slabs, providing a stable foundation for garden paths and driveways.
- Improves water drainage by filling gaps between slabs with fine sand for effective jointing.
- Compatible with various paving materials, ensuring effective results for both budget and premium options.
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#6
19% Off
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- Easy to use joint filler for paving, compatible with professionals and DIY enthusiasts worldwide.
- Versatile compound suitable for various paving materials such as stone, limestone, slate, and granite, ensuring long-lasting results against environmental elements.
- No mixing needed; simply wet paving, apply filler, and sweep into joints for a smooth finish, avoiding excessive residue.
- 12.5kg tub provides adequate coverage for various joint sizes; unused product can be stored underwater and is available in multiple colors.
- Manufactured by Azpects Ltd, a company focused on simplifying outdoor hard-landscaping maintenance.
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- Easy to use joint filler for paving, compatible with professionals and DIY enthusiasts worldwide.
- Versatile compound suitable for various paving materials such as stone, limestone, slate, and granite, ensuring long-lasting results against environmental elements.
- No mixing needed; simply wet paving, apply filler, and sweep into joints for a smooth finish, avoiding excessive residue.
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#7
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- Jointing compound designed for renovating failing mortar joints in patios and paths, compatible with all paving types.
- Water-activated filler creates a durable, flexible joint that prevents weeds and insects, with resistance to erosion from water, frost, and wind.
- Easy application: pour the filler into the joints, compact it, and wet the surface until no water is absorbed.
- 5kg tub provides ample supply for targeted repairs, allowing for selective patching of deteriorated mortar joints.
- Azpects Ltd specializes in innovative products for outdoor hard-landscaping, aimed at simplifying maintenance challenges.
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- Jointing compound designed for renovating failing mortar joints in patios and paths, compatible with all paving types.
- Water-activated filler creates a durable, flexible joint that prevents weeds and insects, with resistance to erosion from water, frost, and wind.
- Easy application: pour the filler into the joints, compact it, and wet the surface until no water is absorbed.
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#8
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- High-quality jointing compound suitable for all paving types with a gap of at least 3mm and 25mm depth.
- Usable in all weather conditions, including warm, cold, wet, and freezing.
- Quick application and fast drying time.
- Simple application process requiring minimal effort.
- No staining or waste; leftover material can be stored wet for future use.
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- High-quality jointing compound suitable for all paving types with a gap of at least 3mm and 25mm depth.
- Usable in all weather conditions, including warm, cold, wet, and freezing.
- Quick application and fast drying time.
- Simple application process requiring minimal effort.
- No staining or waste; leftover material can be stored wet for future use.
#9
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- 15kg weight suitable for large projects
- Designed for wide gap joint filling
- Ideal for paving applications
- Buff color for aesthetic appeal
- Compatible with various surfaces
- Durable mortar jointing compound
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- 15kg weight suitable for large projects
- Designed for wide gap joint filling
- Ideal for paving applications
- Buff color for aesthetic appeal
- Compatible with various surfaces
- Durable mortar jointing compound
#10
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- Single-component joint filling system for rapid pointing of paved areas with joints over 5mm. Easy brush application, ready to use.
- Forms a stable, weather-resistant mass upon exposure to the atmosphere, remaining permeable to rainwater and reducing puddling.
- Compatible with various paving types including natural stone, terracotta, clay, concrete, and cobblestones. Suitable for both domestic and commercial installations.
- Cost-effective and eco-friendly solution ideal for patios, pathways, and other paved surfaces. Safe for use in covered areas and open porches.
- Ensure joints are dry and free from weeds and debris, with a minimum width of 5mm and depth of 25mm. Do not apply in temperatures below +10°C.
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- Single-component joint filling system for rapid pointing of paved areas with joints over 5mm. Easy brush application, ready to use.
- Forms a stable, weather-resistant mass upon exposure to the atmosphere, remaining permeable to rainwater and reducing puddling.
- Compatible with various paving types including natural stone, terracotta, clay, concrete, and cobblestones. Suitable for both domestic and commercial installations.
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