Keeping your interlock patio looking new
Why interlock needs any upkeep at all
Interlock is one of the lowest-maintenance surfaces you can put in a yard, but "low" isn't "none." A properly built patio — compacted base, polymeric joint sand, correct slope for drainage — will hold up for decades. A little seasonal attention is what keeps it looking like day one instead of just holding together.
Sweep and rinse regularly
Clear leaves, dirt, and organic debris before they break down into the joints — that's what feeds weed and moss growth. A stiff broom for loose debris and an occasional hose rinse is usually enough. For built-up grime, a pressure washer on a wide, low-pressure setting works, but keep the nozzle moving and avoid blasting joint sand out from between the pavers.
Watch the joint sand
Polymeric joint sand locks pavers in place and blocks weeds, but it can wash or wear out over several seasons — especially at high-traffic edges. If you start seeing joints open up or sand missing, top it up before weeds move in; it's a much smaller job caught early than after a season of weed growth.
Sealing (optional, but worth it)
Sealing isn't mandatory, but it enhances colour, makes stains easier to wipe up, and helps lock joint sand in place. If you seal, plan on roughly every 2 to 3 years depending on sun exposure and traffic — always clean the surface thoroughly first so the sealer bonds properly.
Winter care
Snow removal is fine with a plastic shovel or snowblower on a normal setting — avoid metal-edged tools that can chip pavers. Skip rock salt where possible; it can accelerate wear on some paver finishes and joint sand. A sand-based ice melt or calcium-chloride product formulated for pavers is a gentler choice.
When to call us
Settling, sinking, or a paver that's come loose usually points to an issue with the base underneath, not the surface — and that's worth fixing properly rather than patching. If you're seeing movement, give us a call and we'll take a look.