Pool Lighting and Water Features in Ontario: LED Lights, Waterfalls and Real Costs

LED vs Halogen Pool Lighting

Most Ontario pools built before about 2012 have a single incandescent or halogen light in the deep end, usually 300 to 500 watts behind a glass lens. They throw a warm yellow light, burn out every year or two, and the replacement bulbs are steadily harder to find. Modern pool lighting is almost entirely LED, and for good reasons.

An honest note on hydro: a pool light only runs a few hours a night, so swapping one halogen for an LED saves tens of dollars a season, not hundreds. The pump is where energy money lives. The real case for LED pool lights is that they are brighter, last many seasons without a bulb change, and let you choose the colour of the water.

Colour-changing and app control

Cheaper colour-changing LEDs step through colours when you flick the switch off and on; better ones connect to an automation panel or Wi-Fi bridge so you can set colour, brightness and schedules from your phone. Two cautions: lights only stay in sync if they share a brand and control protocol, and most people end up using one soft white or blue most nights, so good white output matters more than party modes.

LED Pool Lights: Retrofit, New Niche or Surface Mount

Retrofit an existing niche

If the pool already has a light, the fixture sits in a wet niche in the wall with enough cord coiled behind it to lift it to the deck for service. An LED retrofit either replaces the bulb inside the existing fixture or swaps the whole fixture for an LED unit sized to the same niche. Budget roughly $400 to $900 installed. The installer must match the system voltage, since older pools may run 120-volt or 12-volt lights, and replace the lens gasket while the fixture is out.

Add a new niche

A new niche means cutting into the pool wall, setting the niche, running conduit back to a junction box, and bonding it. In a vinyl pool the liner has to come out or be cut around, which is why we strongly recommend adding niches when you replace the liner. Expect roughly $1,200 to $2,500 per niche, more if the deck has to be opened for conduit.

Surface-mount lights for vinyl and fiberglass

Low-profile surface-mount LEDs sit on the wall face and connect through a small fitting, often an existing return or a compact penetration, rather than a full niche. They are the practical retrofit for vinyl and fiberglass pools where cutting a large niche would be risky. Expect roughly $600 to $1,500 each installed. On a new fiberglass pool, plan light locations before the shell goes in.

Step, bench and accent lights

Small LED points in steps, benches and tanning ledges are inexpensive and show exactly where each step edge is at night. They are easiest to add during a build, liner replacement or renovation.

Low Voltage, Bonding and Ontario Electrical Safety

Water and electricity are the one backyard combination where a small mistake can kill someone. Most new pool lights are 12-volt fixtures fed by a pool-rated transformer, which reduces risk at the light but not the need for a proper circuit and bonding.

What a proper installation includes

• A pool-rated transformer sized for the total wattage of the lights, mounted where the code allows relative to the water.
• Ground fault protection on the pool lighting circuit, as required by the Ontario Electrical Safety Code.
• Bonding: metal parts of the pool system, such as niches, ladders, rails, the pump motor and heater, connected with a bonding conductor so there is no voltage difference between things a wet person can touch.
• Correct junction or deck boxes at the height and distance the code requires, so water cannot run back down the conduit into a connection.
• A notification to the Electrical Safety Authority (ESA) and an inspection, with the certificate kept with your pool records.

Electrical work typically adds roughly $300 to $1,500 to a lighting project in the GTA, depending on the distance from the panel, whether a new circuit is needed, and how much deck has to be opened. Another reason to plan lighting before the deck is built.

How Many Lights Your Pool Needs, and Where

As a rule of thumb, one modern LED fixture lights roughly 300 to 500 square feet of water evenly. More lights at lower brightness look better than one blazing light, because they remove the dark corners and the hot spot.

Placement rules that matter

• Shine away from the main viewing area. Put lights on the wall closest to the house or patio, aimed away from it, so you see glowing water rather than staring into a bulb.
• Favour the deep end. Lights low in the deep end spread farther across the floor, and a deep-end light facing away from the patio is the classic single-light layout.
• Think about the neighbours. On tight GTA lots, a light aimed at the back fence can light up the bedroom window behind it. Check sightlines before the niche is set.
• Light the steps. Steps and entry points are where people misjudge depth at night.

Pool Water Features Explained

Pool water features add sound and movement, which is much of what makes a pool feel like a retreat. They also add plumbing, pump demand and something extra to winterize.

Plumbing and pump needs

One or two deck jets can usually run off the main pump through a dedicated valve, especially a variable speed pump that steps up when the feature is on. Diverted flow is not filtration, so features should not replace normal filter hours. A big stone waterfall or wide sheer descent often needs its own pump, roughly $1,200 to $2,500 installed, wired and bonded like any pool pump. On an evening timer its running cost stays modest. Our pool pump guide explains why variable speed matters here.

2026 Installed Costs for Pool Lighting and Water Features

GTA ranges for 2026, assuming reasonable access and a sound existing pool. Deck removal and restoration can add to any line, so ask for an itemized quote.

For context, most complete LED pool and landscape lighting packages on a typical GTA backyard land between $1,500 and $5,000. Water features are where budgets stretch, so decide early which one or two will make the biggest difference from where you actually sit.

Pool Landscape Lighting

Underwater lights make the pool glow, but pool landscape lighting is what makes the whole yard feel finished at night, and it keeps people from tripping on the way to the water.

What works around a pool

• Uplights on grasses, shrubs and specimen trees to create depth beyond the water.
• Step and riser lights built into deck stairs and seating walls for safe movement.
• Path lights to the house and gate, spaced to avoid a runway look.
• Wall wash or downlights on pergolas and cabanas so the structure glows rather than glares.

Use warm white LEDs for planting and paving, even if the pool itself runs colour, and put the landscape lights on their own low-voltage transformer with a timer or photocell. Keep fixtures out of the splash zone, and run conduit before the paving goes down; retrofitting lights into finished interlock means lifting stone. Our pool deck materials guide covers the hardscape side, and our pool landscaping and hardscaping service plans lighting, planting and paving as one project.

Winterizing Lights and Features, and When to Install

At closing

Every water feature line has to be blown out and plugged at closing just like the returns, or it will freeze and crack under the deck. Drain sheer descent manifolds, protect or remove laminar units as the manufacturer directs, and drain feature pumps. For underwater lights, if the winter water level stays above the light it can usually stay in the niche. If the water is lowered below it, the fixture is lifted out of the niche and laid on a step or the floor under water, and the light is switched off for the winter. Never run a pool light out of the water. Our pool closing guide walks through the full process, and our closing service handles features as part of the visit.

The cheapest moment to add lights and features

Lighting and features cost the least when the pool is already opened up. A liner replacement is the ideal time to add niches and step lights, since the liner is out and the walls are exposed; see our liner replacement cost guide. A deck rebuild is the time for deck jets, conduit and landscape lighting. A larger pool renovation is the time for raised walls, sheer descents and stone waterfalls.

Plan in fall and winter, install with the spring opening

The end of summer is when a dark pool is most obvious, and the off-season is when there is time to design it properly. Settle the layout, fixtures and electrical plan over fall and winter, then schedule the work with the spring opening or a planned liner job. Waiting until June usually means waiting for a slot. If you are budgeting the bigger picture, our pool maintenance cost guide covers what a pool costs to run each year.