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ECO Window Systems Roofing: The Los Angeles Owner’s Guide
ECO Window Systems roofing components installed in Los Angeles homes typically cost $470 – $2,125 for repair work and $9,440 – $23,600 for full replacement, including parts and labor from our team. Most owners find out a part has failed through a ceiling stain, a warped sill, or daylight visible through a seam that used to seal tight. The failure pattern we see most across our Los Angeles service calls is straightforward: flashing degrades before glass, seals dry out before frames warp, and the drainage channel under the unit is almost always the first place water finds its way in.
Which ECO Window Systems Models This Applies To

The roofing components on ECO Window Systems installations follow a straightforward rule: the roof curb and flashing kit is matched to the rough opening, not the glass package. In plain English, two ECO units with different glazing can share the same roof curb. The plate stamped on the interior frame (usually aluminum, usually on the left jamb) carries the series number you’ll need: SKY, VIEW, CLERESTORY, or CUSTOM CURB. Measure the rough opening before ordering anything. A 4’x4′ curb and a 4’x6′ curb take different flashing kits even when the glass looks identical from below.
For Los Angeles owners, we recommend OEM flashing and curb kits for anything still under the original install warranty. For units out of warranty, quality aftermarket aluminum flashing paired with a compatible sealant system gets the same job done at roughly 60-70% of the OEM price. The gotcha worth knowing: ECO’s curb profile changed slightly around 2018. A pre-2018 curb and a post-2018 curb don’t swap flashing without a retrofit adapter, which is exactly the kind of detail that turns a simple swap into a second callback for someone who guessed.
Styles & brands we work with







Signs Your ECO Window Systems Roofing Is Failing
- Water staining in a ring around the interior drywall return. This means the sealant between curb and flashing has dried and separated. Los Angeles heat cycles bake sealant faster than most manufacturers’ suggested lifespan.
- Condensation between the glass panes. The insulated glass unit seal has failed. This isn’t a roofing component failure exactly, but it tells you the unit has been cycling hot and cold harder than it should, which shortens curb seal life too.
- Daylight at the curb-to-deck seam when viewed from inside. This is the flashing losing contact with the curb. On a flat Los Angeles roof, this is an active leak waiting for the next rain.
- Drafts around the interior trim even with the unit closed. Gasketing and curb insulation have compressed or degraded. The roofing supports are still there, but the air seal is gone.
- Rust streaks running down the ceiling from the curb corners. Carbon steel fasteners have started corroding. In our coastal Los Angeles air, this shows up in 8-10 years unless stainless was specified at install.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included

Here’s the honest math for the Los Angeles market. A curb reflash on a single ECO unit runs $470 – $885. A full curb replacement with new flashing runs $945 – $2,125. Full unit replacement including roof work lands in the $9,440 – $23,600 range depending on curb size, glass package, and roof deck conditions we find once we open things up.
Every quote from us includes parts, labor, sealants, haul-off, and the 365-Day Done Right Promise in writing. What drives the range: single-story versus two-story access, whether the roof is torch-down membrane or shingle, and whether the old curb was installed with mechanical fasteners or adhesive-only (adhesive-only takes longer to remove cleanly). You get a written price before we start. The invoice matches the quote. No change orders unless you approve them first.
DIY or Call Us?
There are exactly two things worth checking on your own: keep the weep holes clear of debris (a clogged weep channel pushes water back under the flashing), and keep the visible sealant bead from drying into cracks. If the sealant has failed, recaulking the exterior is a legitimate weekend project for a homeowner who is comfortable on a ladder.
Everything past that is where DIY goes wrong. Removing a curb means cutting into the roofing membrane. Getting that seam wrong doesn’t damage one window, it leaks into the whole room below. Flat-roof work in Los Angeles is not the place to learn on the fly. If you want it done once, call us at (254) 272-5876. If you want to watch and learn, we’re happy to show you what we found while we work.
FAQs

Expect 12-20 years from the curb and 8-12 years from the sealant, depending on sun exposure and roof coating maintenance. Call (254) 272-5876 for an exact assessment of your unit.
Yes, if the flashing metal is intact and only the sealant has failed, a clean-and-reflash runs $470 – $885. If the metal has pulled away from the curb or rusted through, replacement is the only fix that holds.
One curb replacement typically takes us half a day on site plus sealant cure time. Weather delays are rare in Los Angeles, so scheduling is straightforward.
We keep common curb flashing profiles and sealant systems on the truck for Los Angeles service calls. Custom sizes and OEM glass packages are ordered to spec, usually with a 5-10 day lead time.
Written by Luca Romano, Owner, Sawyer Remodeling at Sawyer Remodeling, serving Los Angeles and nearby areas.


