Fix your crumbling flagstone walkway without the mess of traditional mortar

How to Repair a Mortared Flagstone Walkway | This Old House · 4:08 · Video: This Old House · Watch at the source

In short: Landscape contractor Roger Cook demonstrates a practical method for repairing mortared flagstone walkways. Instead of mixing new mortar, this approach uses a specialized adhesive and a stone dust mixture to secure loose stones and fill gaps, offering a cleaner alternative for home maintenance.

Repairing a flagstone path often involves dealing with cracked or loose joints that have weathered over time. Rather than relying on traditional mortar, which can be difficult to apply and prone to future cracking, this technique utilizes a dedicated mortar-joint repair adhesive.

The process requires clearing debris from the joints using an air compressor and nozzle before applying the adhesive. A mixture of stone dust and sand is then used to fill the joints, providing a stable and aesthetically pleasing finish that mimics the look of traditional masonry.

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