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  • Writer's pictureAbility Property

When It's Time to Repair Your Interlocking Stone

There are several reasons that homeowners contact us to repair their interlock patios, walkways and driveways.

The most common interlock problems include:

1) The stones have shifted or lifted.

In Canada we have frequent freezing and thawing of the ground, causing surface shifts. If there is insufficient base material under your interlocking stone or if it is many years old, the stones can shift and cause uneven surfaces and trip hazards.

Solution: The stones in the affected area are removed, the base material re-graded and compacted. Then, a new layer of new base material is laid down and the stones are replaced. Polymeric sand is used to fill the joints and a light application of water on the joints will set the sand.

2) Weeds are growing through the joints in the stones

Most weed growth occurs from the top, not by pushing through the bottom of the stone. If older-style joining sand was used or the sand has eroded, weeds and insects can take hold.

Solution: The joints are power-washed free of existing sand. Weeds are removed and new polymeric sand is installed. The sand is dampened to form a hard bond. New sand should be installed annually for best results.

3) Staining

Driving over interlock, leaving a vehicle or equipment on it that may leak oil and general spills can stain your interlock landscaping.

Solution: A good commercial-grade pressure washer will remove many stains and spills. Pressure washing will also remove any loose sand. It is recommended that new polymeric sand be installed after the bricks have had a chance to thoroughly dry.

Have Questions? Call Ability Property Maintenance at 905.933.4019 or book a free estimate online for your interlock repair project today.

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