Every Lake Oswego winter produces the same two calls: the ones who see the ice early, and the ones who see the ceiling stain first. As part of our complete Lake Oswego winter roof services, crews handle commercial ice dam removal across Clackamas County.
Why Lake Oswego Roofs Dam Up: Altitude Sun on a Deep Pack
The pack at this elevation is deep enough to act as its own insulation, which means the surface melts under sun while the base stays locked. Water released at the top has to travel through and under all of it.

That is why mountain roofs dam up on clear, cold weeks that look harmless. South and west faces melt, north-facing eaves and shaded valleys hold the ice, and the pack above keeps feeding it.
Ice-barrier practice in Clackamas County
Design snow loads up here are among the highest in the country, and the membrane and retention details that come with them are not paperwork. On an older Lake Oswego cabin neither is likely to be present.
Commercial Ice Dam Removal in Lake Oswego: How The Work Runs
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.
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.
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.
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 Lake Oswego unit, there is usually standing water up there.
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 Lake Oswego building that distinction shows up as a tenant ceiling two floors down.

What you get in Lake Oswego
- Tenant-hours schedulingWork windows set around occupancy and access
- Overnight windows availableWork scheduled outside occupancy where access demands it
- Drains and scuppers firstFlow restored before the ponded ice is worked
| Local ice-barrier practice | Extended membrane plus snow retention |
|---|---|
| Removal method | Low-pressure steam only. No chipping, salt or pressure washing. |
| Dispatch window | 24 to 48 hours in mountain terrain |
| Documentation | Dated before and after photos, written scope in Xactimate line items |
| Coverage area | Lake Oswego and Clackamas County |
| Typical scope | Steam, 8-16 crew hours typical |
| Pricing model | Billed by the crew hour, rate quoted before dispatch |
Lake Oswego Coverage and the Adjoining Communities
Crews working Lake Oswego cover the adjoining communities on the same route — Marylhurst, West Linn, Tualatin, Gladstone and Happy Valley — so a storm week usually means one truck handling several addresses in Clackamas County rather than separate trips.
Nearest hub towns with their own commercial ice dams pages: Tigard, Portland, Beaverton, Oregon City, Hillsboro, Gresham.
Scheduling for Lake Oswego 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 Ice Dams in Lake Oswego often runs alongside commercial roof snow removal in Lake Oswego, and both get written into one scope rather than billed as separate visits.
Active leak right now? Our 24/7 Lake Oswego steam ice dam removal crews are dispatched first during a freeze event. Call (888) 561-9664.




