The ice along a roof in Chelsealine is the symptom. The cause is warm air escaping into the attic, and it is still running right now. As part of our complete Chelsea winter roof services, crews handle ice dam removal across Suffolk County.
Wet Snow, Swinging Air: Chelsea Ice Dams
Coastal snow is heavy with water, and a roof in Chelsea can take a foot of it in a night. That pack is a full reservoir from the moment it lands, not something that becomes one slowly.

Add the architecture and the problem concentrates. Dormers, ells, knee walls and additions over porches all create pockets where warm air meets cold deck, and those are the eaves that dam first on a roof in Chelsea.
Ice-barrier practice in Suffolk County
Ice-barrier membrane at the eaves is standard on re-roofs across coastal Massachusetts, and many towns enforce it strictly. Homes that have not been re-roofed since that became normal practice are the ones that leak first.
Ice Dam Removal in Chelsea: How The Work Runs
Working at night and during an active storm
Freeze events do not keep office hours, and the worst leaks tend to announce themselves in the evening when the day's melt refreezes. Crews run lit, and a roof that is actively collecting snow is worked anyway, because waiting for better weather means the dam is bigger when somebody finally gets to it. Water Stain on the Ceiling in Winter.
What does stop a crew is wind and lightning. Both are judgment calls made on site in Chelsea, and a postponed start gets explained rather than dressed up.
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 Chelsea 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.
Why salt and ice melt make it worse
Calcium chloride opens a narrow channel and leaves the dam standing. The channel refreezes, the dam does not go anywhere, and in the meantime the runoff corrodes gutter seams, fasteners, flashing and anything growing underneath.
It is a stopgap at best. On a roof in Chelsea with an active leak it buys hours, not days, and it adds a corrosion problem to the water problem.
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.
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 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.

What you get in Chelsea
- Photographed as we workDated before and after images and a written scope your adjuster will accept
- Same-day dispatchActive interior leaks go to the front of the schedule during a freeze event
- Cleared to the shingleThe dam comes off completely, not just a drainage channel cut through it
| Removal method | Low-pressure steam only. No chipping, salt or pressure washing. |
|---|---|
| Documentation | Dated before and after photos, written scope in Xactimate line items |
| Local ice-barrier practice | Eave membrane standard on re-roofs |
| Pricing model | Billed by the crew hour, rate quoted before dispatch |
| Service | Ice Dam Removal in Chelsea, MA |
| Coverage area | Chelsea and Suffolk County |
| Typical scope | Steam, 4-10 crew hours typical |
Where We Dispatch Around Chelsea
Crews working Chelsea cover the adjoining communities on the same route — East Boston, Charlestown, Winthrop, West Medford and New Town — so a storm week usually means one truck handling several addresses in Suffolk County rather than separate trips.
Nearest hub towns with their own ice dam removal pages: Everett, Revere, Malden, Boston, Somerville, Medford.
Scheduling for Chelsea 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 Chelsea often runs alongside water mitigation & dryout in Chelsea, and both get written into one scope rather than billed as separate visits.
Active leak right now? Our 24/7 Chelsea steam ice dam removal crews are dispatched first during a freeze event. Call (888) 561-9664.








