By the time a roof in Sitka has a visible ridge of ice at the eave, meltwater has already been pooling behind it for several freeze-thaw cycles. As part of our complete Sitka winter roof services, crews handle commercial ice dam removal across Sitka County.
Why Sitka Roofs Dam on Days It Never Thaws
Mountain ice dams are a solar problem more than a temperature one. The sun works the pack from above while the air stays cold, so meltwater is produced and refrozen within the same afternoon.

Aspect decides everything here. The sunny plane sheds water that the shaded plane and the shaded eave then lock up, so one side of a roof in Sitka is clear while the other carries a wall of ice.
Ice-barrier practice in Sitka County
High-country Alaska codes typically call for extended ice barrier and, on metal roofing, snow guards above any door, walkway or parking area. Both exist because of what comes off these roofs.
Commercial Ice Dam Removal in Sitka: How The Work Runs
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.
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.
Flat roofs fail differently
A pitched residential roof dams at the eave. A commercial deck dams at its drainage: frozen scuppers, iced-over internal drains, and ponding that refreezes into a sheet across the low spots. Water then sits on the membrane at depth, finds a seam or a flashing detail, and comes through into the tenant space below.
Parapet walls make it worse by holding the melt on the deck instead of letting it run off an edge. By the time it shows up as a ceiling tile stain in a Sitka unit, there is usually standing water up there.
Working around rooftop plant
HVAC curbs, exhaust fans, conduit, gas lines, solar racking and railing are all obstacles and all drift traps. The snow behind a large unit is usually the deepest on the roof and the ice under it the thickest.
Crews work around and under them rather than over, and anything running stays running.
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 Sitka building that distinction shows up as a tenant ceiling two floors down.

What you get in Sitka
- Overnight windows availableWork scheduled outside occupancy where access demands it
- Documentation for the boardCondition report and photo record with every invoice
- Flow confirmed belowAn open drain throat over a frozen leader is not an open drain
| Pricing model | Billed by the crew hour, rate quoted before dispatch |
|---|---|
| Service | Commercial Ice Dam Removal in Sitka, AK |
| Primary climate stressor | Solar melt on deep pack, shaded eaves |
| Typical scope | Steam, 8-16 crew hours typical |
| Documentation | Dated before and after photos, written scope in Xactimate line items |
| Local ice-barrier practice | Extended membrane plus snow retention |
| Dispatch window | 24 to 48 hours in mountain terrain |
Where We Dispatch Around Sitka
Crews working Sitka cover the adjoining communities on the same route — Port Alexander — so a storm week usually means one truck handling several addresses in Sitka County rather than separate trips.
Nearest hub towns with their own commercial ice dams pages: Juneau, Ketchikan, Valdez, Girdwood, Palmer, Wasilla.
Crews cover Sitka and the surrounding Sitka County towns through the whole season, and during a freeze event they run from first light until dark.
Most jobs do not stop at one service. Commercial Ice Dams in Sitka often runs alongside commercial roof snow removal in Sitka, and both get written into one scope rather than billed as separate visits.
Active leak right now? Our 24/7 Sitka steam ice dam removal crews are dispatched first during a freeze event. Call (888) 561-9664.




