Most Dover homeowners find out about an ice dam from the inside — a damp patch on a bedroom ceiling, or water tracking down the inside of a window frame. As part of our complete Dover winter roof services, crews handle commercial roof snow removal across Strafford County.
Months of Load: Why Dover Eaves Carry Ice
A roof in Strafford County spends most of the year's coldest months under continuous load. That is a different problem from a single heavy storm, and it produces a different kind of ice.

A long season is not a safer one. It means more freeze-thaw cycles, and each one adds a layer to the dam. By late winter the ice at a Strafford County eave can be a foot deep and locked to the shingle, with standing water sitting behind it.
Ice-barrier practice in Strafford County
Insulation depth matters at least as much as membrane in this climate, and Strafford County stock built before modern attic standards tends to be short on both. One is a code question; the other is why the dam formed.
Commercial Roof Snow Removal in Dover: How The Work Runs
Mid-span is where the margin runs out
Long-span steel and open-web joist roofs carry least where the drift is deepest. The average depth across the field is not the number that matters; the depth over the longest unsupported span is. Ceiling Sagging or Bulging After Snow.
That is where crews measure on a Dover building, and it is why two roofs with the same snowfall can be in very different trouble.
Fall protection on a deck with no anchors
Most commercial roofs have no permanent anchor points and a parapet too low to count as a guard. Working near an unprotected edge legally requires a system, and improvising one is where people get hurt.
Crews bring mobile anchors, warning lines and whatever the layout actually needs. Where the roof cannot be worked safely at all, that gets reported to the Dover property manager as a finding, because it will be just as true during the next storm.
Drains and overflows come first
Before anything else comes off, the drains, scuppers and overflow outlets get opened. Otherwise the melt from the clearing has nowhere to go and the roof trades a snow problem for a ponding one.
On a deck in Dover with internal drains that means confirming flow below, not just clearing the grate.
Reduction, not bare deck
The goal is to bring the load under threshold safely, not to scrape a roof in Dover clean. Clearing is balanced across the deck so load is not shifted onto one bay, drains and scuppers are opened so melt has an exit, and a cushion layer always stays on the membrane.
Where the figures call for it, crews bring in crane-assisted picks instead of adding bodies to a roof that is already carrying too much.
Sequencing so the load comes off evenly
Stripping one bay to the deck while the next still carries two feet creates exactly the unbalanced condition that overloads a member. Structures object less to a lot of weight spread evenly than to a moderate weight concentrated on one side.
Crews work in passes across the whole span, reducing everywhere before going deeper anywhere, and the sequence is set before anybody starts rather than left to whoever gets up there first.

What you get in Dover
- Mid-span measuredDepth read over the longest unsupported span, not the average
- Drift-point surveyDepth and density measured where it collects, not where it is convenient
- One invoice per siteMulti-building properties scoped and billed together
| Dispatch window | Same day to 24 hours |
|---|---|
| Primary climate stressor | Sustained sub-freezing, long season |
| Local ice-barrier practice | Eave membrane required on new work |
| Removal method | Low-pressure steam only. No chipping, salt or pressure washing. |
| Typical scope | Steam, 6-14 crew hours typical |
| Service | Commercial Roof Snow Removal in Dover, NH |
| Pricing model | Billed by the crew hour, rate quoted before dispatch |
Dover Coverage and the Adjoining Communities
Crews working Dover cover the adjoining communities on the same route — Madbury, Rollinsford, Newington, Barrington and Lee — so a storm week usually means one truck handling several addresses in Strafford County rather than separate trips.
Nearest hub towns with their own commercial snow pages: Somersworth, Durham, Rochester, Portsmouth, Exeter, Derry.
Scheduling for Dover 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. Commercial Snow in Dover often runs alongside crane-assisted snow removal in Dover, and both get written into one scope rather than billed as separate visits.
Active leak right now? Our 24/7 Dover steam ice dam removal crews are dispatched first during a freeze event. Call (888) 561-9664.




