Centennial Ice Dams: Melting on Days It Never Thaws
Thin air at altitude means intense direct sun even in deep cold. A Centennial roof can be melting on its south face at midday in air that never gets near freezing, and all of that water has to go somewhere.
Aspect decides which eaves suffer. A sunny plane sheds water across a roof in Centennial to a shaded eave that has not been above freezing for weeks, and that is where the ice builds into a wall.
Ice-barrier practice in Arapahoe County
Mountain jurisdictions across Arapahoe County generally require ice-barrier membrane well up the roof plane, not just the first course, along with snow retention on metal roofs above entries and walkways.
How We Work a Centennial Ice Dam
Crews walk the eaves, valleys and gutter line first and photograph every dam and every point where water is tracking inside, before touching anything. You get shown what they found and quoted the crew-hour rate before work starts.
Then the ice comes off with low-pressure steam, starting wherever water is actively backing up so drainage opens early. Frozen gutters and downspouts are cleared in the same visit, because a cleared eave above a solid block of ice in the gutter dams again on the next cold night.
How long a removal actually takes
A single-story eave with a thin dam and clear gutters is often an hour or two. A two-story Centennial house with ice standing a foot deep across the front, frozen downspouts and a valley packed solid is most of a day for a two-man crew. The honest answer on the phone is a range and the reason for it, not a number designed to win the booking.
The estimate is revised out loud if the roof turns out worse than it looked from the ground, before the extra hours are worked rather than after they appear on the invoice.
Dormers, valleys and dead spots
Ice does not distribute evenly. It concentrates where two roof planes meet, behind dormers, in dead valleys that drain nowhere, and along the north face that never sees sun. Those pockets hold water deepest and leak first.
A crew working a roof in Centennial clears the full eave line and then goes back through the valleys and dormer pockets specifically, because clearing the easy straight run and calling it done is how a roof leaks again a week later.
What steam actually does
A steam unit delivers water at roughly 290°F at a pressure low enough to rest your hand in the plume. It cuts a channel straight through the ice and lifts the dam off in sections, right down to the shingle. The heat does the work, not force, so granules, seal strips and flashing come through untouched.
That is the whole difference between steam and the hot pressure washers often sold as steam. A pressure washer cuts ice fast because of its pressure — and that same pressure strips the granules off asphalt shingles and drives water up under the courses. One method removes ice. The other removes ice and roof.
| Documentation | Dated before and after photos, written scope in Xactimate line items |
|---|---|
| Typical scope | Steam, 8-16 crew hours typical |
| Service | Ice dam removal in Centennial, CO |
| Coverage area | Centennial and Arapahoe County |
| Removal method | Low-pressure steam only. No chipping, salt or pressure washing. |
| Dispatch window | 24 to 48 hours in mountain terrain |
| Local ice-barrier practice | Extended membrane plus snow retention |
Arapahoe County Coverage From Centennial
Crews working Centennial cover the adjoining communities on the same route — Louviers — so a storm week usually means one truck handling several addresses in Arapahoe County rather than separate trips.
Nearest hub towns with their own crew pages: Littleton, Englewood, Parker, Aurora, Castle Rock, Denver.
When a storm hits Arapahoe County, crews are dispatched by severity rather than by call order — water already inside the house goes first.
Water through a ceiling in Centennial is a same-day call, not a next-week one. (888) 561-9664 goes straight to dispatch.
