The ice along a roof in Walthamline is the symptom. The cause is warm air escaping into the attic, and it is still running right now. As part of our complete Waltham winter roof services, crews handle commercial ice dam removal across Middlesex County.
Older Housing, Heavy Snow: The Middlesex County Case
Coastal snow is heavy with water, and a roof in Waltham 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.

Older Middlesex County housing stock makes it worse. Shallow eave returns, knee-wall attics and additions built over unheated space all put warm air against a cold roof deck with very little insulation in between.
Ice-barrier practice in Middlesex County
Coastal Massachusetts jurisdictions generally require the membrane to extend past the interior wall line. On a house in Waltham with a deep overhang that is further up the roof than a single course.
Commercial Ice Dam Removal in Waltham: How The Work Runs
Internal drains fail differently from gutters
A residential gutter overflows when it blocks. An internal roof drain just stops, and the water stays on the deck at depth until it finds a seam, a flashing detail or a pitch pocket.
Crews open the drain throat and then confirm flow in the leader below before calling it clear. An open drain over a frozen leader is not an open drain, and on a Waltham building that distinction shows up as a tenant ceiling two floors down.
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.
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.
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.
Multiple buildings on one site
Campuses, retail strips and multi-building properties get walked together and prioritized by which deck is closest to trouble, rather than worked in the order the calls came in.
One scope, one invoice, one contact. It is a meaningfully different job from nine separate ones.

What you get in Waltham
- Drains and scuppers firstFlow restored before the ponded ice is worked
- Flow confirmed belowAn open drain throat over a frozen leader is not an open drain
- Tenant-hours schedulingWork windows set around occupancy and access
| Typical scope | Steam, 4-10 crew hours typical |
|---|---|
| Coverage area | Waltham and Middlesex County |
| Removal method | Low-pressure steam only. No chipping, salt or pressure washing. |
| Dispatch window | Same day to 24 hours |
| Pricing model | Billed by the crew hour, rate quoted before dispatch |
| Local ice-barrier practice | Eave membrane standard on re-roofs |
| Primary climate stressor | Nor'easters, rapid thaw-freeze swing |
Middlesex County Coverage From Waltham
Crews working Waltham cover the adjoining communities on the same route — North Waltham, West Newton, Auburndale, Nonantum and Weston — so a storm week usually means one truck handling several addresses in Middlesex County rather than separate trips.
Nearest hub towns with their own commercial ice dams pages: Newton, Lexington, Arlington, Cambridge, Medford, Somerville.
During a cold snap Waltham gets worked alongside the neighboring Middlesex 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 Waltham often runs alongside commercial roof snow removal in Waltham, and both get written into one scope rather than billed as separate visits.
Active leak right now? Our 24/7 Waltham steam ice dam removal crews are dispatched first during a freeze event. Call (888) 561-9664.




