Field guide · Sep 24, 2026

Ice dam leak: repair or replace your roof?

Water running down an exterior wall in February, a stain along the ceiling edge, icicles as thick as your arm — that’s usually an ice dam, and it’s one of the most common winter roof calls in Metro Detroit. It’s also one of the easiest moments for someone to sell you a whole new roof. In most cases, the right answer is to remove the ice safely, rebuild the damaged eave, and fix the attic conditions that caused it.

What an ice dam actually is

Heat escaping into the attic warms the roof deck and melts snow on the upper slope. That meltwater runs down to the eave, which sits over the unheated overhang and stays cold, and it refreezes. The ridge of ice grows, water pools behind it, and it backs up under shingles that were designed to shed water, not hold it. That’s why ice dam leaks tend to show up near exterior walls, around window heads, and along the edge of the ceiling rather than in the middle of a room.

Low-slope ranches with modest attic insulation and long eaves — common across Wayne, Oakland, and Macomb — are especially prone to it. Shaded north-facing eaves and gutters that stay frozen make it worse.

What to do right now

• Don’t chip at the ice with a hammer, hatchet, or shovel. It’s dangerous from a ladder and it tears shingles and gutters, turning a small repair into a big one.
• Contain the water inside with buckets and towels, and move belongings away from the wall.
• Photograph the damage inside and, from the ground, the ice along the eave.
• Call if water is actively coming in. We can steam the ice off without damaging the roof. If it’s more than an ice dam, see what to do in the first hour of a roof leak.

The repair path (and what it costs)

Ice dam work usually happens in two stages. All prices below are from our published price book.

• Remove the ice safely. Low-pressure steam removal at the eaves — no hammers, no hatchets, no shingle damage — is $375 per hour with a two-hour minimum.
• Rebuild the damaged eave. Once it’s dry, we strip back the shingles and underlayment at the eave and rebuild them with new ice-and-water membrane: $750–$1,600.
• Repair what the ice damaged. Rusted or bent drip edge is $16 per linear foot; rotted fascia tied to the leak is $32 per linear foot; gutter reseal and re-pitch is $325 per run; decking, if we find rot, is $185 per sheet and always quoted before we proceed.

See ice dam repair for how we handle it on site.

Fix the cause, not just the eave

An eave rebuild stops water from getting in, but if warm air is still reaching the roof deck, the ice will keep forming. The fixes for that are usually small and targeted:

• Soffit vents to restore the intake side of the ventilation: $95 per vent.
• Attic baffles so insulation stops blocking airflow at the eaves: $38 per rafter bay.
• Rerouting a bathroom or dryer vent that’s dumping warm, moist air into the attic: $550–$850.
• If you aren’t sure whether it’s ice or condensation, an attic condensation assessment is $249, with moisture readings and a written fix plan.

Adding attic insulation is a separate trade; we’ll tell you plainly if that’s part of the answer.

When replacement actually makes sense

Ice dams damage the eave, not the whole roof. Replacement makes sense only when the roof as a whole is at the end of its life: widespread brittle or curling shingles, heavy granule loss across every slope, or soft decking in many places, not just at the eave. If that’s your roof, we’ll show you the photos and refer you to a licensed installer. We don’t sell replacements, so we have no reason to push one.

If the rest of the roof is sound, a rebuilt eave plus better ventilation is the fix. Warranties are written on the invoice by repair type. Wondering what other repairs cost? See roof repair cost in Michigan (2026).

FAQ

Does an ice dam leak mean I need a new roof?

Usually not. Ice dams damage the eave area. The typical fix is steam removal ($375/hr, two-hour minimum), an eave rebuild with ice-and-water membrane ($750–$1,600), and ventilation improvements. Replacement only makes sense if the whole roof is at the end of its life.

Can I chip or rake the ice off myself?

We don’t recommend chipping. Hammers and hatchets tear shingles and gutters, and working on a ladder over ice is dangerous. Steam removes the ice without damaging the roof.

Why does the ice dam leak show up on an exterior wall?

Water backs up behind the ice at the eave, which sits over the exterior wall, so it tends to show up along wall tops, window heads, and ceiling edges near the outside of the house.

How do I stop ice dams from coming back?

Reduce the warm air reaching the roof deck: restore intake ventilation with soffit vents ($95 each), install baffles at the eaves ($38 per bay), and reroute any bath or dryer vent that exhausts into the attic ($550–$850). Insulation upgrades are a separate trade.

Metro Detroit Roof Repair — repairs only. Flat rates. Photo report every job. Service-area business across Wayne, Oakland & Macomb. Licensed Michigan Maintenance & Alteration contractor 2101214735.