Best 5 Paving Joint Compounds

Check out our review for the best 5 paving joint compounds for patios, driveways and garden projects. A witty, practical guide to the top joint fillers that stop weeds, keep stones steady and make your paving look beautifully finished.

Best 5 Paving Joint Compounds

The Secret Sauce of a Good-Looking Patio. If paving slabs are the bricks of your outdoor kingdom, then joint compound is the royal glue that stops everything falling apart after the first British rainstorm. You can spend days laying perfect slabs, cutting neat edges and checking your spirit level like a proud parent, but without the right joint filler, your patio will soon look like it has been reclaimed by weeds, ants or Nature's general sense of humour.

Not All Are Created Equal

Choosing a paving joint compound feels confusing at first, mostly because every product promises to be the strongest, fastest, easiest and most weatherproof hero in the aisle. Some swear they can handle storms, others brag about resisting weeds, and a few insist they can be brushed in with the casual elegance of a Parisian artist. In all actuality, not all jointing compounds are created equally, and picking the wrong one can leave your patio looking patchy enough to be mistaken for a DIY crime scene.

Varied Surfaces

But fear not, because we have narrowed it down to the five best paving joint compounds that actually do what they claim. Whether you want a fast set, resin blend, budget option, or something that just works without drama, there is a winner here for your walkway, terrace, or driveway.

What Makes a Good Joint Compound? The best products need to resist weeds, handle water like a champion, bond firmly between slabs and not make you swear creatively during application.

Why These 5 Made the List

Each of these compounds is in wide use, well reviewed, and suitable for patios, block paving, or stonework, depending on your project. Ready to meet the top contenders? Let’s dive in.

Top 5 Paving Joint Compounds

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#1, Sika FastFix All Weather Self-Setting Paving Jointing Compound

If jointing compounds had a superhero league, then Sika FastFix would show up to the party in a cape, wearing sunglasses and oozing with the confidence of one who truly can set in rain. This is a resin-based, ready-to-use mix that ensures a solid finish for those homeowners who just don't want to get a PhD in mix ratios. You simply cut open the pack, tip it out, brush it in, and Bob's your uncle. If assembling flat-pack furniture were this easy.

That's one of its biggest selling points: it works perfectly even if the heavens open mid-job. Thanks to Active Resin Technology, it sets hard yet stays permeable-meaning your patio won't turn into a puddle every time the weather throws a tantrum. It resists shrinking, blocks weeds from setting up camp between your paving, and covers up to a generous 20 m². Whether you are working with a big patio or a neat garden path, it gives you that clean, professional finish without the usual colourful language.

Sika also comes in various shades, from Deep Grey through Charcoal to Buff, so your patio can look coordinated rather than the accidental patchwork effect many a DIYer has experienced before the discovery of proper joint compounds. Apply it wet, compact well, and give time to cure, and you can enjoy a rock-solid finish that lasts. For anyone wanting durability, convenience, and weatherproof reliability, Sika FastFix is truly a first-class contender.

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#2, EASYJoint Select Patio Sand Ready Paving Jointing Compound

If Sika is the superhero, then EASYJoint Select is the charismatic celebrity chef of the paving world: charming, smooth, and surprisingly easy to work with. Designed for ceramics, porcelain, and natural stone, this ready-mixed patio filler creates a sleek, modern finish that looks like you spent the day with a professional landscaper-even though you mostly spent it sweeping slurry around like a caffeinated wizard.

The process is easy, wet the paving, pour the compound, keep everything wet and brush it into place. That is it. The key is not letting it dry while you are working because EASYJoint behaves a bit like a diva-it wants attention, water, and constant movement. Treat it right and it rewards you with beautifully neat joints that resist the elements, stand up to wear and tear and look far more expensive than they are.

Its strength makes it suitable for a wide range of paving types, from limestone to slate and granite, but it really comes into its own when used on porcelain and ceramic tiles thanks to its smooth finish. The tub weighs 12.5 kg and covers a pretty decent area; any leftovers can be saved by submerging it in water, which is ideal for future touch-ups. With several colour variants to choose from and boasting a name for being both quick and reliable, EASYJoint Select is a real standout for anybody looking for a premium finish without the premium fuss.

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#3, GLEAN Patio Grout Natural 15kg - 20m² Jointing Compound

GLEAN's Patio Grout is for those who want a no-fuss solution that behaves itself in all weathers-something many British BBQ guests could learn from. Ready to use and self-setting, this compound has been cut for patios, driveways, and paths, and it hits that sweet spot between DIY-friendly and professional-level durability. Brush it in, wet the surface, compact it a little, and let time do the heavy lifting.

It works with an impressive range of surfaces, including slate, stone, clay, concrete, terracotta, and standard paving slabs, so unless your patio is made from rare moon rock, you will be fine. The only thing it does not like is narrow joints; it needs at least 5 mm width and 25 mm depth to settle properly, so give it space to perform. Coverage is excellent from the 15 kg tub, and because it sets naturally without shrinking, you get a long-lasting finish that looks neat and keeps weeds firmly locked out of the party.

The curing time is sensible but not instant, initial set in 24 to 48 hours, full cure in 3 to 7 days depending on weather, enthusiasm and local seagull activity. Freeze-thaw resistant when set, winter can't rough it up into cracks. Left over compound is easily stored, just keep it under water, a real bonus for those future touch-ups. GLEAN gives us here a very good, all-round product, perfect for most homeowners who need ease, robustness and a neat, natural finish.

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#4, Bostik All Weather Jointing Compound Natural 15kg

If you want something that is simple, tough, and ready to go straight from the tub, then Bostik's All Weather Jointing Compound might just be your new best friend. Designed to handle everything from patios to paths, this polyurethane-based filler creates firm, flexible joints from 5 mm all the way up to a chunky 30 mm. Whether your slabs are neatly spaced or look like they were laid by someone who eyeballs everything, Bostik can handle it.

This stuff is renowned for weed resistance and erosion protection, so when it's down, it really stays down. It's permeable, too, meaning rainwater drains away rather than pooling awkwardly in the middle of your patio, like a sulking teenager would. Suitable for natural stone, concrete, slate, terracotta, granite, and even ceramic tiles, this is the most versatile choice for both new projects and repair jobs.

Application is refreshingly simple: soak the area, pour the compound, sweep it in, and compact it for a smooth finish. It even behaves itself beautifully in wet conditions, making it a genuinely all-weather product. A 24-hour cure is usually ample for it to create a solid, attractive seal, and because there is no mixing or faffing, you can make over your patio faster than it takes to explain why you have suddenly decided to grout at 7 a.m. on a Saturday. If you're after dependable, tidy results without drama, then Bostik is a top contender.

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#5, EASYJoint Patio Sand Ready Mixed Paving Jointing Compound

EASYJoint has become somewhat of a celebrity within the patio filler world, pretty much for the reason that it behaves precisely as we all wish DIY products would behave: no mixings, no panics, no praying to the weather gods. Just wet the paving, pour it out, keep everything damp, and then sweep it in-like conducting some very tidy orchestra. It is incredibly straightforward, which is why both the professionals and weekend warriors swear by it.

Suitable for natural stone and slate, plus a whole host of outdoor paving materials, this compound will give you a clean, attractive finish with minimal effort. It works best with slabs thicker than 25 mm, but when the basics are right, the results speak for themselves. The compound flows nicely into joints to create a dense, durable fill that can put up with the unpredictable British weather without turning into mush or crumbling away.

EASYJoint also comes in several colours including Mushroom, Stone Grey, Basalt and Buff, so you can match your grout to your paving rather than settling for that classic “close enough” shade. Because it is a sweep-in system, the speed is impressive, often far quicker than traditional sand-and-cement pointing. Clean-up is simple too, just rinse away residue and let the compound cure. If speed, simplicity and a nice looking finish is most important, EASYJoint is a very strong choice for patios small and great.

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Conclusion

The right paving joint compound will make the difference between a patio that looks finished beautifully for years and one that starts to sprout weeds and wobbles like some bad dance floor. Luckily, every option on this list earns its place by doing something reliably well-be it all-weather application, high durability, or simply making the job as painless as possible.

Recommendations

For the most flexible and easiest to handle, Sika FastFix All Weather is hard to beat as it works in the rain, inhibits weeds, and provides a neat, durable finish. The EASYJoint Select and EASYJoint Patio Sand are great for convenience-seeking users who want professional-style joints with minimal effort for their sanding tasks, mainly for ceramic, porcelain, or natural stone surfaces.

GLEAN offers great durability and a natural look, perfect for bigger areas where a robust finish is crucial. Lastly, Bostik All Weather Jointing Compound is one very reliable option that can work under virtually all weather conditions and with numerous types of materials on your pavement.

Final Word

Ultimately, it comes down to your paving type, joint size, and how much elbow grease you're willing to invest. But either way, your patio is about to look significantly less like a forgotten archaeological site and more like an outdoor space you will actually want to show off. Now all you need is some sunshine, a garden chair, and maybe a drink to admire your handiwork.