Ice dam removal: what you can do from the ground, and what you should not do
The honest answer to "how do I get rid of it" is mostly about what not to do.
Most pages on ice dam removal give you six steps that start with a ladder and end with a hammer. We are not going to do that. Removing an ice dam means working on an iced, sloped surface at the edge of a roof, and that is exactly where people fall. There is a short list of things that are safe from the ground. Everything else belongs to a professional.
Why chipping at the ice makes things worse
Ice at the eave is bonded to the shingles. When you hit it, the ice does not break cleanly away. It takes the granules, and sometimes the shingle tab, with it. You swap a temporary problem for a permanent one.
An axe, a pick or a hammer also cut into the gutter and the drip edge without any warning. The ice hides the edge you are about to hit. A damaged shingle edge can leak next season even if the dam is gone.
The same goes for salt and for climbing up
Spreading rock salt on the roof is a common tip. It leaves pitted metal, stained siding and dead plants below. It also means getting onto the roof. We do not publish instructions that require that.
The same applies to calcium chloride tubes laid across the slope. Placing them takes you up there, on ice, with nothing to hold. The risk is real and the gain is small.
What is safe from the ground
If you can see a dam from the lawn or driveway, you can look at it with binoculars and take photos. Note where the ice sits, how far back the snow is backed up, and where water is dripping from the eave. That record helps whoever you hire.
You can also clear snow from the lower few feet of the roof using a long-handled roof rake while you stand on the ground. Pull gently and keep the blade off the shingles. This does not remove a dam. It takes away the snow that would feed one. We cover that in snow on the roof.
If water is already coming in
Treat it as a containment job inside the house. Move furniture and rugs out of the way, put a bucket under the drip, and lay towels to protect the floor. If the ceiling is bulging with trapped water, keep clear of it and call a professional, because a ceiling that holds water can come down.
Do not worry about the roof itself until the thaw is over. Water stops coming in when the ice refreezes, and the leak is a symptom of the dam, not a sign the shingles have failed.
When to call someone
If the dam is large, if water is entering the house. Or if you cannot reach it from the ground, call a roofing contractor who removes ice with low-pressure steam. Steam melts ice without hammering it and without harming the shingles. Ask how they work at height and whether they are insured and licensed in your state. A professional works with fall protection. You do not have it.
Removal is the symptom, not the cure
Here is the part most pages skip. An ice dam is a heat problem. Warm air leaking into the attic melts snow in the middle of the roof, and the meltwater refreezes at the cold eave. Taking the ice off does nothing to stop that.
The fix that lasts is sealing the air leaks in the ceiling, making the insulation continuous, and keeping the roof deck cold with working ventilation. Our page on what causes ice dams explains the mechanism. If the dam comes back every winter, removal is a patch. Do not keep paying for patches.
Frequently asked questions
How do I remove an ice dam safely?
From the ground, you cannot remove one. You can clear the lower snow with a roof rake while standing on the lawn and contain any leak inside the house. For the ice itself, hire a roofer who uses low-pressure steam and works with fall protection.
Can I chip an ice dam off with a hammer?
It is a bad idea. The ice is bonded to the shingles and tears off granules and tabs when hit. You also have to stand on an iced slope to do it, which is how people get hurt.
Does salt or calcium chloride melt ice dams?
It can melt a channel, but placing it means climbing onto the roof, and salt damages metal, siding and plants below. We do not recommend either approach.
Will removing the ice dam stop it coming back?
No. Ice dams form because heat escapes into the attic and melts snow mid-slope. Sealing the ceiling, continuous insulation and ventilation address that. Removal only clears this winter's ice.
Sources
What this page explains is based on these official sources. If you check one and it does not match what you read here, send it to us and the article gets corrected.
- NOAA / National Weather Service. Winter — National Weather Service safety hub
- NOAA / National Weather Service. What To Do If You're Caught in a Winter Storm