Every Durham winter produces the same two calls: the ones who see the ice early, and the ones who see the ceiling stain first. As part of our complete Durham winter roof services, crews handle ice dam removal across Strafford County.
Durham Ice Dams and the Winter That Does Not Break
Durham holds snow. In a normal winter the pack that lands in December is still on the roof in February, which means the eave spends months below freezing while the attic underneath stays heated.
Ice built this way is dense and bonded. It is not the brittle shell that comes off a mild-climate roof in one piece - it is layered, hard and locked to the shingle, which is exactly why mechanical removal does so much damage here.
Ice-barrier practice in Strafford County
New Hampshire code has required ice-barrier underlayment at the eaves for years on new work, but plenty of housing stock predates it. On an older Durham roof the only thing between backed-up water and the deck is the shingle course itself.
Ice Dam Removal in Durham: How The Work Runs
What steam actually does
A steam unit delivers water at roughly 290°F at a pressure low enough to rest your hand in the plume. It cuts a channel straight through the ice and lifts the dam off in sections, right down to the shingle. The heat does the work, not force, so granules, seal strips and flashing come through untouched. Water Stain on the Ceiling in Winter.
That is the whole difference between steam and the hot pressure washers often sold as steam. A pressure washer cuts ice fast because of its pressure — and that same pressure strips the granules off asphalt shingles and drives water up under the courses. One method removes ice. The other removes ice and roof.
Why a drainage channel is not removal
Cutting a few channels through a dam so water can get past is quick and it is sometimes sold as ice dam removal. It drains the roof for as long as the channels stay open, which in a Durham cold snap can be a single night before they close again.
Removing the dam means taking the ice off down to the shingle along the whole affected run, so the eave can drain the way it was built to. It takes longer and it is the only version that holds.
Why the dam formed in the first place
Ice dams are a heat problem wearing a weather costume. Warm air escaping into the attic melts snow on the upper roof; that meltwater runs to the eave, which hangs past the heated envelope and stays below freezing; it refreezes there, and the ridge of ice grows a layer every cycle. Removal is the emergency fix. Before the crew leaves you will know which part of your attic is feeding it.
How long a removal actually takes
A single-story eave with a thin dam and clear gutters is often an hour or two. A two-story Durham house with ice standing a foot deep across the front, frozen downspouts and a valley packed solid is most of a day for a two-man crew. The honest answer on the phone is a range and the reason for it, not a number designed to win the booking.
The estimate is revised out loud if the roof turns out worse than it looked from the ground, before the extra hours are worked rather than after they appear on the invoice.
What the crew does on arrival
Before anything is touched, the crew walks the eaves, valleys and gutter line and photographs every dam and every point where water is tracking inside. You get shown what they found. Then the dam comes off in sections, starting wherever water is actively backing up, so drainage opens early rather than at the end.
Downspouts and gutter troughs get cleared in the same visit where they are frozen, because a dam removed above a solid block of ice in the gutter just reforms in the next cold night.
What you get in Durham
- Steam onlySafe on asphalt, cedar, slate, tile and metal — no chipping, no pressure, no salt
- Gutters cleared tooTrough and downspout steamed through to daylight in the same visit
- No salt, no chippingNothing corrosive and nothing mechanical touches the covering
| Primary climate stressor | Sustained sub-freezing, long season |
|---|---|
| Dispatch window | Same day to 24 hours |
| Local ice-barrier practice | Eave membrane required on new work |
| Coverage area | Durham and Strafford County |
| Typical scope | Steam, 6-14 crew hours typical |
| Removal method | Low-pressure steam only. No chipping, salt or pressure washing. |
| Documentation | Dated before and after photos, written scope in Xactimate line items |
Neighborhoods and Towns We Reach From Durham
Crews working Durham cover the adjoining communities on the same route — Madbury, Lee, Newmarket, Barrington and Newfields — so a storm week usually means one truck handling several addresses in Strafford County rather than separate trips.
Nearest hub towns with their own ice dam removal pages: Dover, Somersworth, Rochester, Portsmouth, Exeter, Derry.
Scheduling for Durham tightens up during a freeze event, which is exactly when the phone beats the form. Water coming in means a call, not an email.
Most jobs do not stop at one service. Ice Dam Removal in Durham often runs alongside water mitigation & dryout in Durham, and both get written into one scope rather than billed as separate visits.
Active leak right now? Our 24/7 Durham steam ice dam removal crews are dispatched first during a freeze event. Call (888) 561-9664.
