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HOW TO

Garden Lighting Installation Guide

2026 · 8 min read

Garden lighting transforms how you experience your outdoor space. A well-planned lighting scheme extends usable hours, highlights architectural planting and creates atmosphere that makes your garden feel like a room. This guide walks you through the process from planning to installation.

Step 1: Assess Your Garden After Dark

Before buying any fittings, spend time in your garden after sunset. Walk the paths, sit in your seating areas and look at the boundaries. Notice where you feel unsafe, where the best features are hidden in darkness and where ambient light from the house already reaches.

This assessment reveals exactly where lighting will have the most impact. Most London gardens benefit from three layers: task lighting for paths and steps, accent lighting for features and ambient lighting for seating zones.

Step 2: Plan Your Lighting Zones

Divide your garden into zones based on function. A typical London garden might include:

  • Pathway zone — recessed step lights and low-level path markers for safe navigation
  • Feature zone — uplighters on specimen trees, architectural plants and textured walls
  • Entertaining zone — softer, diffused light for dining and lounging areas
  • Boundary zone — wall wash or grazing effects on fences and walls

Step 3: Choose the Right Fittings

For London gardens, we recommend low-voltage LED systems. They are safe, energy-efficient and long-lasting. Key fitting types include:

  • Spike uplighters — adjustable, easy to reposition as planting matures
  • Recessed step lights — flush-mounted in walls, steps or decking
  • Bollard lights — freestanding path markers for wider garden areas
  • Wall washers — linear fittings that cast light across textured surfaces

Step 4: Plan Cable Routes

Cable routing is where many DIY installations go wrong. Cables need to be buried at a safe depth, protected in conduit and routed to avoid future digging areas. If you are planning lighting as part of a new landscaping project, this is much easier — cables can be laid before surfaces are installed.

Step 5: Install a Transformer and Controller

Low-voltage systems require a transformer to step down mains voltage. This should be installed in a weatherproof enclosure near an outdoor power supply. For smart control, add a WiFi-enabled controller that lets you set timers, create scenes and adjust brightness from your phone.

Step 6: Test and Adjust

Once installed, test the system after dark. Adjust angles, reposition spike lights and fine-tune brightness levels. The best lighting schemes are subtle — you should notice the effect, not the fittings.

When to Call a Professional

While simple solar lights can be DIY, a proper low-voltage LED system benefits from professional design and installation. A professional will ensure correct cable sizing, waterproof connections, optimal fitting placement and a clean, concealed finish. The result looks dramatically better than a DIY approach.

Want professional garden lighting?

We design and install garden lighting across South East London. Get in touch for a consultation and see how lighting can transform your garden.

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