The ice along a roof in Keeneline is the symptom. The cause is warm air escaping into the attic, and it is still running right now. As part of our complete Keene winter roof services, crews handle commercial ice dam removal across Cheshire County.
Why a Keene Roof Dams Between Storms
Coastal snow is heavy with water, and a roof in Keene 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.

Retrofits often made it worse rather than better. Insulation laid on an attic floor without sealing the bypasses underneath it keeps the living space warm and sends the same warm air straight to the roof deck.
Ice-barrier practice in Cheshire County
In most coastal New Hampshire towns the eave membrane requirement extends past the interior wall line rather than stopping at the first course. On a roof in Keene with a deep overhang, that is further up than it sounds.
Commercial Ice Dam Removal in Keene: How The Work Runs
Roof warranties and who is allowed up there
Most commercial membranes carry a manufacturer's warranty with conditions about who may work on the roof and what methods are permitted. Snow removal is generally fine; mechanical ice removal very often is not, and the wrong contractor with the wrong tool can void cover worth considerably more than the clearing.
The warranty gets read before the roof is walked, and the method used is one the document permits.
Access control, hatches and escorts
Getting onto a commercial roof is a procedure: keys or fobs, a hatch that may be padlocked, a ladder in a locked plant room, sometimes a site induction and an escort for the duration.
Sorting that out with the property manager in advance is the difference between a crew starting at seven and a crew waiting in the parking lot until nine. Where a tenant controls the only access, that conversation happens before the dispatch rather than on the roof.
Built for property managers
One contact, one scheduled window, one invoice coded the way your accounting needs it. Crews work around tenant hours where that matters, and the condition report goes to whoever has to show the board or the owner what was spent and why.
Membrane-safe means something specific
EPDM, TPO and modified bitumen all tolerate steam at low pressure and none of them tolerate chipping, scraping or a pressure washer. Crews steam the drains and scuppers open first to restore flow, then work the ponded ice, and they stay off seams and flashing details with the lance.
Mechanical units, conduit runs, solar racking and safety railing all get worked around rather than over.
Insulation above the deck changes the melt pattern
A modern commercial assembly puts most of its insulation above the deck, so very little building heat reaches the membrane. That is good for energy and it means the snow that lands mostly stays - the roof does not self-clear the way an under-insulated one does.
Where dams do form on those roofs it is almost always at a thermal bridge: a parapet, a curb, a drain bowl or a line of fasteners. Those are the spots crews work first.

What you get in Keene
- Overnight windows availableWork scheduled outside occupancy where access demands it
- Flow confirmed belowAn open drain throat over a frozen leader is not an open drain
- Plant worked aroundHVAC curbs, conduit, racking and railing avoided, not cleared over
| Dispatch window | Same day to 24 hours |
|---|---|
| Service | Commercial Ice Dam Removal in Keene, NH |
| Typical scope | Steam, 4-10 crew hours typical |
| Documentation | Dated before and after photos, written scope in Xactimate line items |
| Coverage area | Keene and Cheshire County |
| Removal method | Low-pressure steam only. No chipping, salt or pressure washing. |
| Primary climate stressor | Nor'easters, rapid thaw-freeze swing |
Keene Coverage and the Adjoining Communities
Crews working Keene cover the adjoining communities on the same route — Swanzey, West Swanzey, Marlborough, Sullivan and Spofford — so a storm week usually means one truck handling several addresses in Cheshire County rather than separate trips.
Nearest hub towns with their own commercial ice dams pages: Claremont, Goffstown, Bedford, Merrimack, Manchester, Concord.
During a cold snap Keene gets worked alongside the neighboring Cheshire County towns on the same route, with active interior leaks moved to the front of the list.
Most jobs do not stop at one service. Commercial Ice Dams in Keene often runs alongside commercial roof snow removal in Keene, and both get written into one scope rather than billed as separate visits.
Active leak right now? Our 24/7 Keene steam ice dam removal crews are dispatched first during a freeze event. Call (888) 561-9664.




