What is the best way to hide low voltage wiring on an Ottawa patio?

Hiding low-voltage wiring on a patio is mostly about planning the wire routes before the hardscape is finished, because retrofitting concealed wiring into an existing patio is significantly more difficult and expensive than doing it right during installation.

The cleanest approach is to run low-voltage wiring through flexible conduit buried beneath the paver base before the granular material is compacted. In Ottawa, this means the conduit needs to sit below the 12 to 15 inches of compacted granular base required for freeze-thaw stability — so the wire is effectively 18 inches or more below the finished paver surface. This protects the wiring from the constant movement Ottawa's freeze-thaw cycles create in the upper soil layers, and it means you can pull new wire through the conduit years later if you want to add fixtures or upgrade the system.

For existing patios where the pavers are already down, the most practical options are running wire along the edges of the patio under paver border units, tucking it into the joint between the patio and a retaining wall or step riser, or routing it through flexible conduit buried in adjacent garden beds. Many Ottawa homeowners also run wiring along the base of fence posts or through hollow aluminum post sleeves, which hides the wire completely while keeping it accessible.

Where wire transitions from underground to above-grade fixtures — at post bases, step risers, or planting bed edges — use weatherproof conduit fittings and junction boxes rated for outdoor burial. Ottawa's freeze-thaw cycles will work any loose fitting over time, so proper connections matter here more than they would in a milder climate.

One important note: while low-voltage landscape lighting wire itself operates at 12 volts and doesn't require an ESA permit for the wire runs, the transformer that connects the system to your household power absolutely does require proper electrical work by an ESA-licensed electrician. This is a common misunderstanding — homeowners assume the whole system is DIY-friendly because the wire is low voltage, but the transformer connection is a household electrical connection and needs to be done properly and safely.

If you are planning a new patio installation and want integrated lighting, the time to plan wire routing is during the design phase, before a single shovel of gravel goes in. It adds very little cost to sleeve conduit under a patio during base preparation, but adds significant cost and disruption to do it after the fact. If you are working with a contractor through the Ottawa Construction Network directory, make sure lighting conduit sleeves are explicitly included in the scope of work before installation begins.