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ECO Window Systems Roofing: The Austin Owner’s Guide
ECO Window Systems roofing parts in Austin typically run $400 – $1,800 installed depending on which component failed and how much decking or flashing needs to come with it. We keep the most common ECO Window Systems roof components on our trucks, and in most cases we can get a replacement ordered and installed within a week. Tell me what you need, I’ll tell you what it costs, and we’ll go from there.

Most Austin homeowners discover a roofing failure the same way: a water stain on the ceiling after a hard rain, or a shingle that peeled back during one of our spring wind storms and never quite sat right again. ECO Window Systems built their reputation on windows, but their roof-integrated skylight and vent components share the same sealing technology, and when those seals go, the leak is rarely subtle. You’ll usually see it in the attic first, or hear it, which we’ll get into below.
Which ECO Window Systems Models This Applies To

ECO Window Systems roof components fall into a few distinct families, and the part number matters more than the year. If you can find the label on the curb or frame, look for a series code starting with EWS-R (roof window), EWS-S (skylight), or EWS-V (vent). The EWS-R series, mostly installed in Austin homes between 2010 and 2019, uses a 2-1/2 inch curb profile that is not interchangeable with the newer EWS-RX line, which went to a 3-inch profile. That half-inch difference catches a lot of people off guard when they order parts online.
On the vent side, ECO Window Systems used a proprietary aluminum flashing clip that was updated around 2017. If your home has the older clip style, an aftermarket universal flashing will not seat correctly without modification. We carry OEM ECO Window Systems parts where they’re still available, and for discontinued series we use a vendor in Dallas that machines exact-match aluminum to the original spec. For most homeowners, OEM is the right call on any seal or gasket, because the material compound is matched to the original thermal expansion rate. Aftermarket makes more sense on exterior flashing and trim where dimensional accuracy is what matters.
Styles & brands we work with







Signs Your ECO Window Systems Roofing Is Failing
- Water staining on the ceiling around the light shaft or vent collar. This is the classic first sign. The stain usually appears as a soft tan ring rather than a sharp drip line, because the water is wicking through insulation before it reaches the drywall. By the time you see it inside, the seal has been compromised for weeks.
- Condensation between the panes of an ECO skylight. ECO Window Systems uses an argon-filled double pane on their roof windows, and when the edge seal fails, the argon escapes and the panes fog from the inside. This is not a cleaning issue. The unit has failed and needs replacement.
- A flapping or rattling sound during wind events. Austin’s March and April winds find every loose vent cap and flashing corner. If you hear a metallic tick or a soft slap near the roofline during a gust, the mounting hardware or the flashing has loosened and is letting the component move against the decking.
- Granules from shingles collecting in the gutter near the ECO roof component. The transition where a roof window or vent meets the shingle field is a high-wear point. Shingles around that perimeter age faster, and if you’re seeing heavy granule loss in a specific area, the flashing may be holding water against the shingle surface instead of shedding it.
- Daylight visible around the interior frame or flashing joint. Go into the attic on a bright day with the lights off. If you see slivers of light around the roof component perimeter, the gasket or flashing has physically separated. This is also where you’ll feel a draft in winter.
See the difference
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After
Before
After
Before
AfterReplacement Cost & What’s Included

Here’s what we quote in Austin for ECO Window Systems roofing work:
- Flashing replacement or reseal: $400 – $900 depending on access and whether we’re pulling shingles or working from a ladder.
- Gasket and seal replacement: $350 – $700, which includes removal of the old gasket, surface prep, and OEM-spec replacement material.
- Full skylight or roof window unit replacement: $1,200 – $2,800 installed, depending on size and the series compatibility.
- Vent replacement with new flashing and collar: $500 – $1,200, including the OEM part and new sealant at every seam.
- Roof repair around the component (shingles, underlayment, decking patch): $400 – $1,800 as a standalone job, or less when combined with a component replacement.
Every one of those numbers is a written price before we start. It includes the part, labor, haul-off of the old component, and cleanup. If the decking under the component has rot, we’ll show it to you, explain what we found, and give you a revised written number before we touch it. The workmanship on every ECO Window Systems roofing repair is covered by our 365-Day Done Right Promise, and the OEM parts carry their own manufacturer warranty on top of that.
DIY or Call Us?
You can safely inspect an ECO Window Systems roof component from the attic side. That’s the smart first move. Check for daylight, feel for moisture, and note any draft. On the exterior, a visual check from the ground or a ladder held by another person is fine. What you should not do is get on an Austin roof in July to re-seal flashing. The roof surface in a Texas summer runs 140 to 160 degrees, shingles get soft, and a slip on a sloped roof is a life-changing event, not a weekend project.
The deeper issue is that ECO Window Systems flashings and gaskets are match-fit to the series. A generic tube of roofing sealant from the big box store will not account for the thermal expansion and contraction we get between Austin’s 25-degree February mornings and 105-degree August afternoons. It may hold for a season. Then you’re back to the same leak, only now the sealant has gummed up the surfaces and the repair costs more. If you’ve done the attic inspection and you suspect a seal or flashing failure, call (325) 225-5429 and we’ll give you a straight answer on what’s failing and what it costs to fix it right.
FAQs

Plan on 12 to 18 years for the gaskets and seals on ECO Window Systems roof windows and vents in the Austin climate. The combination of intense UV, summer roof temperatures that exceed 150 degrees, and sudden cold snaps breaks down the sealing compound faster than the manufacturer’s average lifespan. We’ve replaced gaskets on 9-year-old units that sat on a south-facing roof, and we’ve seen 20-year-old units on shaded north exposures still holding. Your specific exposure matters more than the calendar.
If you’re not sure whether your seals are near the end, call (325) 225-5429 and we’ll do an honest assessment, not a sales pitch.
Yes, if the failure is isolated to the flashing, the gasket, or the sealant. We re-flash and re-seal ECO roof windows and vents all the time. If the glass unit itself has failed and you have condensation between the panes, or if the frame is warped or cracked, a replacement is the only repair that will last. We won’t sell you a full unit if a gasket fixes it.
Call (325) 225-5429 and we’ll tell you honestly which situation you have.
Most flashing and gasket repairs are done in 3 to 5 hours from setup to cleanup. A full skylight or roof window replacement typically takes a full day, and if we need to replace decking or shingles around the component, plan on a day and a half. We protect the interior drop area with tarps, and the job isn’t done until the site is clean.
We stock the most common ECO Window Systems gaskets, sealants, and vent collars on our trucks. For series-specific flashing kits and full replacement units, we order directly from our OEM supplier with a typical 3 to 5 business day arrival. We also have a Dallas vendor that fabricates exact-match flashing for discontinued ECO series.
Call (325) 225-5429 and we’ll check the specific part for your model while you’re on the phone.
Written by Trevor Nash, Owner, Penhallow Remodeling Austin at Penhallow Remodeling Austin, serving Austin and nearby areas.


