When should you winterize an outdoor fountain?

Before the first hard freeze in your area, which in practice means when overnight lows start reaching the low 30s Fahrenheit consistently. In USDA zones 3 to 5 that is often early to mid October, in zones 6 to 7 late October into November, and in zone 8 usually late November or December. Waiting for the first actual freeze is cutting it fine, because a single overnight dip below freezing with water sitting in a shallow upper tier can crack it. Watch the ten day forecast rather than the calendar.

Which fountain materials crack in winter?

Cast stone and concrete are the most vulnerable because they are porous — they absorb water into the material itself, and each freeze-thaw cycle expands that water and flakes off the surface, a process called spalling. Ceramic and terracotta are next, since a glazed surface hides a body that still absorbs water and they crack cleanly rather than flaking. Fiberglass and resin are the most tolerant, though they still split if water freezes inside a sealed basin. No material survives a bowl full of ice; the water is the enemy, not the cold.

Can you leave a fountain running through winter?

Only in regions that do not freeze, roughly USDA zone 9 and warmer, and even there a hard cold snap can catch you out. Running water does not reliably protect a fountain: the thin film on a tier freezes readily, ice builds and diverts the flow over the edge, and the pump can run dry and burn out while the basin ices over. In freezing climates the safe approach is to shut down and drain. If you want winter interest, some people run a small recirculating feature indoors instead.

Where do you store a fountain pump over winter?

Indoors and wet, in a bucket of water somewhere that will not freeze — a basement, heated garage or utility closet. Fountain pump seals and the impeller shaft are designed to stay submerged, and five months of dry storage lets those rubber components shrink and crack, which is why so many pumps that ran perfectly in October fail on the first startup in April. Clean the pump before storing it, pull the intake cage and rinse the impeller, and change the bucket water once mid-winter.

Do you need to cover a fountain in winter?

Yes if it stays outside, and it should be a breathable waterproof cover rather than a plastic tarp. The purpose is keeping rain and snowmelt out of the bowls so nothing can refill and freeze, and a sealed non-breathable wrap defeats itself by trapping condensation against the stone. Secure it against wind with bungees or straps, because a cover that blows off in December leaves a bowl collecting meltwater, which is exactly the scenario you were preventing. Raise the base on shims so it is not sitting in a frozen puddle.

How to Winterize an Outdoor Fountain (By Material and Type)

Written & researched by Elena Marsh Gardening & Landscaping Editor

Updated October 2026

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Drain the fountain completely, remove the pump and store it submerged in a bucket of water somewhere above freezing, dry every bowl and tier, then cover the feature with a breathable waterproof cover before the first hard freeze. Water expands about nine percent when it freezes, so anything trapped in a bowl, a riser tube or a pump housing pushes outward hard enough to split the material. Cast stone and concrete need one extra step — a masonry sealer, because they absorb water into the body itself and spall over repeated freeze-thaw cycles.

When to do it, by zone

USDA zone	Typical shutdown	Approach
3–5	Early to mid October	Full drain, pump indoors, cover, or move the whole feature inside
6–7	Late October to November	Full drain, pump indoors, breathable cover
8	Late November to December	Drain and cover; some winters are mild but plan for the cold one
9–11	Usually no shutdown	Run year round; drain if a hard freeze is forecast

Go by the ten day forecast rather than the date. The damage happens on a single unexpected overnight dip with an inch of water sitting in a shallow upper tier.

Golden-hour view of a person adjusting a small water feature in a planted garden bed

Step-by-step

Unplug and shut off power, 1 minute. Disconnect at the outlet, not just at an inline switch, and if the fountain is on a GFCI circuit note which one so you can restore it in spring. Anything beyond unplugging — a damaged cord, a hardwired circuit, a failed GFCI — is an electrician's job, not a homeowner one.
Drain every reservoir and tier, 20 minutes. Pump or siphon the basin out, then sponge the last inch. Tip small upper bowls to empty them. Check for hidden water: riser tubes, the inside of a hollow finial, the space under a pump platform, and the drain path between tiers. That trapped water is what cracks a fountain.
Remove and clean the pump. Pull the intake cage, rinse the impeller and the housing with clean water, and clear any mineral deposit with a diluted white vinegar soak if the water is hard. A clean pump stores better and starts more reliably.
Store the pump wet, indoors. Put it in a bucket of water in a basement, heated garage or closet that will not freeze. Change the water once around mid-winter. Dry storage is the single most common reason a working pump is dead in spring — the seals shrink and crack.
Scrub and dry the basin. Remove algae and mineral scale while everything is empty, since it is far easier now than in spring. Let the whole feature dry completely for a day or two before covering it, so you are not sealing moisture in.
Seal porous materials. On cast stone and concrete, a breathable masonry sealer applied to a clean dry surface reduces how much water the body absorbs, which is what causes surface flaking over successive winters. Apply according to the product instructions and only to a fully dry fountain, in temperatures the label allows.
Get it off the ground. Raise the base an inch or two on shims, bricks or pressure-treated blocks so the fountain is not standing in a frozen puddle. Ice forming under and around a base lifts and cracks it.
Cover it breathably. Use a purpose-made fountain cover or a breathable waterproof tarp, not sheet plastic. Secure it with bungees or straps against winter wind. The job is keeping precipitation out of the bowls, so check it after storms.
Move what you can indoors. Small tabletop and solar fountains, and anything ceramic or terracotta, should come inside or into a shed. They are the pieces most likely to crack and the easiest to move.

Wide environmental view of a person adjusting a small water feature in a planted garden bed, in soft overcast light

What changes by material and type

Type	Risk	Extra step
Cast stone / concrete	High — porous, spalls over years	Seal the surface; cover; raise off the ground
Ceramic / terracotta	High — cracks cleanly	Move indoors if at all possible
Fiberglass / resin	Moderate	Drain thoroughly; check for sealed cavities
Copper / metal	Low for the body, high for joints	Drain; expect patina change; check soldered seams
Tiered, multi-bowl	High — many places to trap water	Check every tier and the riser tube individually
Wall-mounted	Moderate	Drain the reservoir; consider dismounting light units
Pondless / disappearing	Low for the basin	Pump indoors; leave the gravel reservoir alone
Solar	Moderate — the panel is the fragile part	Bring pump and panel inside; store panel dry and flat

Three-quarter view of a person adjusting a small water feature in a planted garden bed, in soft overcast light

Mistakes to avoid

Leaving water in an upper tier. The most common failure. A shallow bowl freezes solid first.
Storing the pump dry. Seals shrink and crack. Store it submerged.
Wrapping in sheet plastic. Traps condensation against the material and can be worse than no cover.
Adding antifreeze to the basin. Never. Automotive antifreeze is toxic to wildlife, pets and children and there is no reason for it in a drained fountain.
Chipping ice out with a metal tool. If a basin does ice up, let it thaw. Chipping cracks the material far more reliably than the ice would have.
Waiting for the first freeze. Winterize on the forecast, not on the event.
Sealing a damp fountain. Sealer over trapped moisture traps it in. Let it dry fully first.
Leaving the cover loose. A cover that blows off in December leaves the bowls collecting meltwater all winter.

Spring restart

Uncover on a dry day once hard freezes have passed, inspect for hairline cracks and surface flaking while the fountain is still empty, and repair small cracks with a masonry patching compound before you add water. Rinse the basin, refit the cleaned pump, fill, and run it briefly while you watch for leaks at the seams. If the pump hums but does not move water, the impeller is usually stuck from storage — unplug it, free the impeller by hand, and try again. Our guides to fountain pump sizing and fountain algae control cover the two decisions that shape the rest of the season.

Owner reviews across the category consistently flag pump failure and winter cracking as the two things that end a fountain's life, which is why material and pump quality matter more than looks — our outdoor fountain picks weigh both. For a shorter version of this routine, see how to winterize a fountain.

We never buy, test or physically handle the products we rank. Recommendations come from aggregated owner reviews, star ratings, review volume and expert consensus — see how we rank.

How to Winterize an Outdoor Fountain