Winterizing Landscape Lighting in Michigan: A Fall Checklist

Published July 29, 2026 by LandscapeLightMI

Landscape lighting is a four-season investment in Michigan, but only one season really tests it. Winter brings early darkness, heavy snow, road salt, and the plow crews and shovels that account for most of the fixture damage we repair. None of it is a threat to a well-built LED system if you spend an hour in the fall getting ahead of it. Skip that hour and you find out in January, when the ground is frozen and the fix has to wait until spring.

This is the checklist our crews run on Bloomfield Hills, Birmingham, Rochester Hills, and Troy properties every fall. It is not complicated. It is a handful of small tasks done at the right time, before the freeze locks everything in place.

First, Know What Actually Needs Protecting

The good news for anyone running a modern system: LED fixtures shrug off the cold. Unlike the halogen lamps they replaced, whose filaments were fragile and ran hot, LEDs are solid-state and actually run more efficiently in cold weather. The fixtures are not the weak point. If you are still running halogen and weighing the switch, our guide to LED versus halogen landscape lighting covers why winter is one more reason to convert.

What needs attention in winter is everything around the light: the timer that no longer matches sunset, the snow that buries a path light, the plow that clips it, the road salt that eats an aluminum fixture, and the connection that works its way loose right before the ground freezes solid. Those are the five items on the list.

1. Reset the Timer for the Early Sunset

This is the number one winter complaint we hear, and it is the easiest fix. A timer set back in summer, when the sun sets after 9 p.m., is wildly wrong in December, when it sets before 5. The lights come on hours after dark, and the system that should be doing its best work in the long winter evenings sits dark instead.

Update the timer for the season, or better, install an astronomical timer or a photocell that tracks real dusk automatically and never needs a seasonal reset. On a system with smart landscape lighting controls, this happens on its own, one of the quiet reasons smart controls are worth it in a climate with a five-hour swing in sunset time across the year.

2. Mark and Clear Fixtures Before the Snow

Here is the damage we repair most in winter, and it is never the cold. It is a path light snapped off by a plow, crushed by a shovel, or buried so deep its light never reaches the surface. A driver clearing a Bloomfield Hills driveway at 6 a.m. in a whiteout cannot see a low path fixture at the edge of the pavement. Neither can a shovel crew.

• Mark fixture locations near driveways and walks before the first snow, with a driveway marker or a note to whoever plows.
• Brush snow off fixtures after storms so uplights and path lights are not shining into a snowbank. Use a broom or a gloved hand, never a metal shovel against the fixture.
• Watch the snow-pile zones. Fixtures at the edge of where plowed snow gets stacked take the most abuse. On systems we design, we keep fixtures out of those zones on purpose.

3. Defend Against Road Salt

Road salt and driveway deicer are hard on metal, and the fixtures nearest the pavement take the brunt. Salt accelerates corrosion, especially on aluminum fixtures and their connections. This is exactly why we spec brass and copper near driveways and walks, the same reasoning laid out in our comparison of brass versus aluminum fixtures. Brass and copper stand up to salt and lake-effect humidity for decades where aluminum pits and fails.

If salt-zone fixtures are already aluminum, rinse them off during a winter thaw when you can, and put corrosion-resistant fixtures on the replacement list. Salt exposure is cumulative. A fixture that looks fine in November can be corroding at the base by March.

4. Check Connections Before the Ground Freezes

Low-voltage systems live on their connections, and connections are the one thing you cannot easily service once the soil freezes. In the fall, while the ground is still workable, walk the system lit at dusk and look for the tells of a bad connection: a fixture that flickers, one that is noticeably dimmer than its neighbors, or a run that has gone dark entirely. A corroded or loose connector caught in October is a five-minute fix. The same fault in January waits for spring.

While you are at it, confirm the transformer enclosure is intact and rated for the outdoors. A NEMA 3R transformer cabinet handles Michigan winter fine. An indoor-rated box mounted outside does not. Our transformer sizing guide covers the enclosure rating and the rest of what the box needs to survive an Oakland County winter.

5. Do the Fall Walk at Dusk

The whole checklist comes together in one habit: walk the property at dusk in late October or early November, with the system on, before the first hard freeze. You see what is aimed wrong, what is dim, what is loose, and what is sitting in a future snow pile, all at once, while there is still time and workable ground to fix it. It is the fall bookend to the spring maintenance walk, and together the two keep a system looking designed rather than neglected year-round.

Winter Is When Lighting Looks Its Best

One last point, because homeowners sometimes ask whether to shut the system down for winter. Do not. Winter is the season a lit landscape earns back what it cost. The dark comes early, snow reflects and amplifies the light, bare architectural trees uplit against snow are stunning, and the holiday weeks are when the front of the house matters most. A properly winterized system runs all winter and looks better doing it than at any other time of year. For the design side of cold-season lighting, our winter landscape lighting guide goes deeper on what to light and how.

Frequently Asked Questions

Do I need to winterize LED landscape lighting?

LED fixtures handle Michigan cold better than the halogen they replaced, so the fixtures themselves rarely need protection. What needs attention is everything around them: the timer that no longer matches the early sunset, snow and plow damage, road salt on driveway fixtures, and any loose connection that will be locked under frozen ground until spring. A fall check catches those before the freeze.

Should I turn off landscape lighting in winter?

No. Winter is when a lit landscape earns its keep in Oakland County, with early darkness, snow that reflects the light beautifully, and holiday season curb appeal. Leave the system running. The only change worth making is updating the timer or photocell so it tracks the shorter days, and clearing snow off fixtures so their light is not buried.

Can snow and ice damage landscape lights?

Rarely the light itself, but snow load, ice, and above all snowplows and shovels break fixtures every winter. The most common winter damage we repair is a path light snapped off or buried by a plow or a shovel crew that could not see it. Marking fixture locations before the first snow and keeping them cleared prevents most of it.

Does road salt hurt landscape lighting fixtures?

Yes, especially near driveways and walks that get salted. Road salt and deicer accelerate corrosion on aluminum fixtures and connections. Brass and copper fixtures resist it far better, which is one reason we spec them near hardscape. Rinsing salt off driveway fixtures in a winter thaw and using corrosion-resistant fixtures where salt lands protects the system.

When should I winterize my landscape lighting in Michigan?

Do the fall check before the first hard freeze, usually late October into November in Oakland County. Once the ground freezes, you cannot easily fix a buried connection, reset a fixture, or add protection, so the window is the mild fall weeks. Adjust the timer, walk the system lit at dusk, and correct anything loose while the soil is still workable.

Why do my landscape lights come on too late in winter?

A timer set for summer sunset turns the lights on hours after dark in December, when the sun sets before 5 p.m. Update the timer for the season, or switch to an astronomical timer or photocell that tracks real dusk automatically. This is the single most common winter complaint and the easiest fix on the fall checklist.

Related: Spring Landscape Lighting Maintenance, Brass vs Aluminum Fixtures, Winter Landscape Lighting Guide.