Cost Breakdown
| Item | Min | Max | Note |
|---|---|---|---|
| Simple solar path lights (DIY) | £30 | £80 | No electrician needed; 4-6 stake lights, self-installed |
| Mains-powered path lights (per light) | £60 | £120 | Including SWA cable run, bollard or spike light, and connection |
| Spotlight/uplight (per light) | £50 | £100 | Ground-recessed or spike-mounted; ideal for feature trees and walls |
| Deck/step lights (per light) | £30 | £70 | Low-voltage LED recessed into decking boards or step risers |
| Full garden lighting scheme | £500 | £1500 | Design, supply, and installation of 10-20 lights across the garden |
| Outdoor consumer unit | £200 | £400 | IP65-rated unit with RCD protection, fed from the main consumer unit |
| SWA cable (per metre installed) | £5 | £12 | Steel wire armoured cable buried at 450mm minimum depth |
What's Included
- Design consultation to plan the lighting layout and discuss the desired effect (uplighting, path marking, security, ambience)
- Supply and installation of all light fittings, cable, connectors, and junction boxes
- Trenching and cable burial at the required depth, with warning tape above the cable run
- Installation of an outdoor consumer unit with RCD protection where required
- Full testing, certification, and an Electrical Installation Certificate for the new outdoor circuit
- Backfilling trenches and basic reinstatement of turf or soil (specialist paving reinstatement may be extra)
Factors Affecting Cost
- The number of lights and overall scope of the scheme. A simple setup of 4 to 6 path lights is a half-day job, while a full garden design with 15-20 lights across multiple zones can take 2 to 3 days.
- Cable routing distance and burial requirements. Mains-voltage outdoor circuits use Steel Wire Armoured (SWA) cable buried at least 450mm deep, or run through ducting. Longer cable runs across larger gardens add significant material and labour cost.
- Whether a dedicated outdoor consumer unit is needed. For anything beyond a single light or socket, best practice is to install a separate weatherproof consumer unit in the garden fed from the main board. This adds £200-400 but provides proper RCD protection and easier circuit management.
- The type of lighting system — mains voltage (230V) versus extra-low voltage (12V/24V). Mains systems are more powerful and reliable but require an electrician for all installation work. Low-voltage systems using a transformer are safer to extend and adjust but may not be bright enough for security or large-area lighting.
- Ground conditions and landscaping. Digging trenches through established lawns, paving, or tree-root zones takes longer than running cable through fresh landscaping. If the garden has already been paved or decked, the electrician may need to route cable around the perimeter or use surface-mounted conduit.
- Smart controls and automation. Basic on/off switches or photocell sensors are inexpensive, but adding Wi-Fi controllers, zone dimming, colour-changing capability, or integration with home automation (Alexa, Google Home) increases component costs and setup time.
- Your region in the UK. Labour rates vary by 20-30% between London/South East and the rest of the country. Access difficulties in terraced properties with narrow side passages can also add to the cost.
How Long Does It Take?
A simple installation of 4 to 6 path or spike lights with a short cable run from the house typically takes 1 day. A mid-range scheme of 8 to 12 lights across the garden, including an outdoor consumer unit and 20-30 metres of SWA cable, usually takes 1.5 to 2 days. A comprehensive design with 15-20 lights, multiple zones, deck lighting, and smart controls can take 2 to 3 days. Much of the time is spent on the groundwork — digging trenches, laying cable, and reinstating the garden — rather than the electrical connections themselves. Coordination with landscapers, if the lighting is part of a larger garden project, can affect the timeline.
Do I Need This?
Garden lighting transforms your outdoor space, extending its usable hours well into the evening and adding significant kerb appeal and property value. It is particularly worthwhile if you entertain outdoors, want to highlight architectural or planting features, or need better security lighting around your property. Well-placed path and step lights also improve safety, reducing the risk of trips and falls on uneven surfaces. From a security perspective, motion-activated lights around entry points are one of the most effective deterrents against burglary. Even a modest scheme of a few well-positioned spotlights and path lights makes a dramatic difference to how a garden looks and feels after dark. If your garden has recently been landscaped, adding lighting at the same time is far cheaper and less disruptive than retrofitting it later.
How to Save Money
Install lighting at the same time as landscaping or decking work. Trenches can be dug before turf or paving is laid, saving significant labour on groundwork and reinstatement.
Start with a wired infrastructure for future expansion. Have the electrician install a consumer unit and run the main SWA cable with spare capacity, then add lights in phases as your budget allows.
Use LED fittings throughout. They consume a fraction of the energy of halogen equivalents and last 25,000+ hours, dramatically reducing running costs and bulb replacement.
Consider low-voltage (12V) systems for areas where you want flexibility. The transformer plugs into an outdoor socket, and the low-voltage cable does not need to be buried as deeply or armoured, reducing installation cost.
Source your own light fittings from specialist outdoor lighting retailers. Quality IP65/IP67-rated fittings are often cheaper online than through an electrician's supplier, though confirm compatibility before purchasing.
Average Cost Summary
£200–£1500
Typical price range for garden lighting installation cost in the UK. Prices may vary based on your location, property type, and specific requirements.
