Professional low-voltage LED landscape lighting systems in 2026 cost $2,000-$6,000 for a typical residential install with 8-12 fixtures, $1,500-$3,500 for small starter systems with 6-10 fixtures, and $4,500-$10,000+ for large homes with 12-20 fixtures. Estate-scale systems with 20+ fixtures run $10,000-$30,000. Per-fixture installed cost runs $100-$150 in lower-cost markets and $205-$396 per fixture in higher-cost coastal metros per Homewyse January 2026 pricing. DIY starter kits run $100-$500 for 3-6 fixture projects.
The single biggest cost lever is voltage class. Low-voltage (12V) is the standard for landscape lighting and does not require a permit or a licensed electrician in most jurisdictions, which keeps total cost in the $2,000-$6,000 range for typical systems. Line-voltage (120V) outdoor lighting requires both a permit ($75-$200) and a licensed electrician at $75-$150 per hour, pushing comparable system cost $1,000-$3,000 higher. For standard landscape aesthetics (path lights, spotlights, uplighting), low-voltage is the right choice. Line-voltage is typically reserved for security floodlights only.
Operating cost for a standard 8-12 fixture LED system is only $5-$15 per month because LEDs use up to 80% less electricity than halogen. Pricing in this guide is aggregated from Angi, HomeGuide, Homewyse, LawnStarter, and Tru-Scapes. Use the calculator above to scope fixtures, then read on for the fixture-type selection, the transformer-sizing math that separates legitimate bids from under-spec quotes, and the cable-gauge rule that prevents premature LED failure. For companion scope, price the landscape design service cost calculator for upstream planning and the irrigation install cost calculator for bundled trenching.