The ice along a roof in Hillsboroline is the symptom. The cause is warm air escaping into the attic, and it is still running right now. As part of our complete Hillsboro winter roof services, crews handle commercial ice dam removal across Washington County.
Hillsboro Ice Dams: Melting on Days It Never Thaws
At Hillsboro's elevation the air can stay below freezing all day while direct sun still melts the top of the snowpack. That meltwater runs down under the pack, reaches a shaded eave, and refreezes — on a day the thermometer never rose above freezing.

Depth makes it worse. A Washington County roof can carry several feet of pack, and all of that is a reservoir sitting above an eave that never sees sun.
Ice-barrier practice in Washington County
Snow retention above doors, walkways and parking is a requirement in most Washington County jurisdictions for good reason: a release off a metal mountain roof is a serious event, not an inconvenience.
Commercial Ice Dam Removal in Hillsboro: How The Work Runs
What the board or the owner gets
A condition report with dated photographs, what was found, what was done and what is still a risk — in a form that can go to a board, an owner or a carrier without being rewritten.
For a managed Hillsboro property that document is usually the reason the spend gets approved without a second conversation.
Scheduling around tenants
Noise, access, parking and the hours a Hillsboro business can have equipment outside its door all shape when work happens. Some jobs run overnight for that reason.
Set the constraint on the call and the window gets planned around it rather than negotiated on the day.
Parapets hold the water in
A parapet is why a commercial deck ponds instead of shedding. Scuppers through the parapet are the only exit, and they are narrow, exposed on three sides and the first thing to freeze solid.
Steaming a scupper throat open is often the single highest-value twenty minutes of a commercial Hillsboro call.
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.
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 Hillsboro unit, there is usually standing water up there.

What you get in Hillsboro
- EPDM, TPO and mod-bitLow-pressure steam only, seams and flashing details avoided
- Plant worked aroundHVAC curbs, conduit, racking and railing avoided, not cleared over
- Documentation for the boardCondition report and photo record with every invoice
| Local ice-barrier practice | Extended membrane plus snow retention |
|---|---|
| Removal method | Low-pressure steam only. No chipping, salt or pressure washing. |
| Typical scope | Steam, 8-16 crew hours typical |
| Pricing model | Billed by the crew hour, rate quoted before dispatch |
| Documentation | Dated before and after photos, written scope in Xactimate line items |
| Coverage area | Hillsboro and Washington County |
| Dispatch window | 24 to 48 hours in mountain terrain |
Washington County Coverage From Hillsboro
Crews working Hillsboro cover the adjoining communities on the same route — Cornelius, North Plains, Forest Grove, Gaston and Sherwood — so a storm week usually means one truck handling several addresses in Washington County rather than separate trips.
Nearest hub towns with their own commercial ice dams pages: Beaverton, Tigard, Portland, Lake Oswego, Oregon City, McMinnville.
When a storm hits Washington County, crews are dispatched by severity rather than by call order — water already inside the house goes first.
Most jobs do not stop at one service. Commercial Ice Dams in Hillsboro often runs alongside commercial roof snow removal in Hillsboro, and both get written into one scope rather than billed as separate visits.
Active leak right now? Our 24/7 Hillsboro steam ice dam removal crews are dispatched first during a freeze event. Call (888) 561-9664.




