Landscape Lighting Installation Cost: Per-Fixture Guide

Professionally installed landscape lighting costs $3,000–$6,500 on a typical suburban lot in 2026, with most homeowners paying around $4,200. The cleanest way to think about it is per fixture: $200–$500 per installed light for standard low-voltage path lights, spotlights, and wash lights — fixture, buried cable, trenching, transformer share, and aiming. A DIY weekend project with a few path lights comes in under $400; a 30-fixture architectural job with brass housings and a smart controller can exceed $12,000. Electrician-rate context lives in the electrician cost hub.

Cost by project size (2026)

The per-fixture price is the honest unit of comparison between quotes. Two $4,500 quotes for “front yard lighting” can be 12 fixtures or 22 fixtures — the cheaper per-light quote is the better deal, and the quote that won't give you a fixture count is the one to worry about.

Fixture types and what they cost installed

The other lines in the quote: a multi-tap transformer ($150–$400 sized to total wattage plus 25% headroom), direct-burial cable ($0.50–$1.50/ft), and labor for trenching and aiming. On established landscaping, trenching labor is often the surprise — hand-digging cable runs under mature plantings is slow, expensive work.

Brass vs. aluminum: the fixture material that decides lifespan

The LED inside lasts 40,000–50,000 hours either way. It's the housing that fails — corrosion, water intrusion, and rotting wire-nut connections underground. On a $5,000+ system, the brass premium ($50–$100 more per fixture) is the cheapest insurance in the project.

Transformer sizing (the part people undersize)

Add up fixture wattage, then size the transformer with 25–30% headroom — a 600W transformer for 450W of fixtures, not a 300W transformer running at 100% and cooking itself. LED fixtures draw 3–8W each, so even a 20-fixture LED system often lands under 150W total; the headroom covers voltage drop on long runs (use multi-tap transformers for runs over 50 ft) and future additions. Smart controllers with zoning and app scheduling add $100–$300 but are what make a 25-fixture system actually usable — nobody wants all-or-nothing lighting.

DIY vs. hiring a pro

Low-voltage (12V) landscape lighting is one of the most DIY-friendly electrical projects that exists: no permit, safe to work with, standardized parts, and forgiving wiring — a 6–10 light path-light kit is a genuine weekend project under $400. What the pro sells is design: fixture selection, placement, aiming, transformer sizing, trenching through established beds without killing anything, and a warranty on the whole system. The $4,500 that separates a pro job from a DIY kit buys the difference between “a yard with some lights in it” and “a yard that glows.” Hire the design; DIY the extra path lights once the transformer and main runs are in. Anything 120V, any new outdoor circuit, or burial work near utilities goes to a licensed electrician — rates in the electrician cost hub.

Worked example: a 15-fixture front yard

The DIY version of the same yard: brass-free aluminum fixtures retail ($70–$120 each), a 300W transformer kit, and cable comes in around $1,200–$1,800 in materials and two weekends of trenching. The $3,000–$6,000 gap buys the design eye, the trenching labor, and the warranty — which is exactly the trade to make consciously. If you DIY, spend the savings on brass fixtures for the visible spots; they're the parts you'll look at for twenty years.

Seasonal and specialty adders

A few costs that show up as change orders when they aren't quoted up front: holiday/festoon lighting taps($200–$400 for dedicated switched circuits), pool-area lighting (wet-rated fixtures at a 30–50% premium, plus stricter code), tree-mounted downlights ($300–$600 each installed — the “moonlight” effect, worth every penny on mature trees), and security add-ons (motion-sensor floods tied to the transformer, $150–$300 per zone). None of these belong in the base quote unless you asked — but ask before the trenching crew leaves, because re-trenching for a forgotten zone costs more than the fixture did.

Do you need a permit?

Low-voltage (12V) landscape lighting needs no permit anywhere — it's Class 2 wiring, the same category as doorbells. The permit line appears with 120V outdoor lighting, new outdoor receptacles, or a new dedicated circuit for the transformer: typically $50–$150, with GFCI, outdoor-rated hardware, and burial-depth code requirements. Practical note: if your transformer plugs into an existing outdoor receptacle, you never touch the permit line at all — one more reason low-voltage kits are the DIY standard.

Costly mistakes to avoid

• Solar stake lights as “landscape lighting.” $25–$60 each, dim by midnight, dead in 18 months. They're decorations, not lighting — a 12V system is the minimum that counts.
• No fixture count in the quote. “Front yard lighting, $4,500” with no fixture list is how 22-fixture quotes become 12-fixture installs. Demand the count and the per-fixture math.
• Undersized transformer. Running a 300W transformer at 300W cooks it. Size 25–30% over, and use multi-tap for long runs to beat voltage drop.
• Even spacing with no accents. A row of identical path lights is security lighting, not landscape lighting. Accent at least the focal tree and the architecture — spots and washes are what make the photos.
• Aluminum in salt air. Coastal homes need brass or copper — aluminum fixtures corrode in seasons, not years.
• Buried wire nuts. Direct-burial gel-filled connectors or above-grade junction boxes only. Standard wire nuts underground rot and fail in 2–4 years — the #1 service call in landscape lighting.