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Before
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Before
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Before
AfterECO Window Systems Roofing: The Mountain View Owner’s Guide
ECO Window Systems roofing components in Mountain View typically run $400-$1,800 to repair and $8,000-$20,000 for full replacement, with compatible flashing, seal kits, and integrated trim pieces stocked on our trucks for same-day service on most calls. We carry OEM and vetted aftermarket equivalents for the ECO 3000, 5000, and commercial-grade lines, and we’ll match your exact series before anyone picks up a tool. Most Mountain View owners discover the problem during our dry summers when thermal expansion opens gaps at the window-to-roof junction, or after winter rains reveal slow leaks that have been running down the interior frame for months.
Which ECO Window Systems Models This Applies To
The ECO Window Systems product line breaks into three residential series that interface with roofing differently. The ECO 3000 series uses a standard nail-fin flange with a replaceable foam compression seal; the 5000 series upgrades to a rigid PVC subsill with an integrated drip cap that routes water over the roofing membrane, not behind it. The commercial line, sometimes labeled ECO-C or ECO-Pro depending on the distributor, carries a heavier-gauge aluminum head flashing that requires a 2-inch roof-to-frame overlap per manufacturer detail.
To identify yours, check the etched code on the glass spacer bar (visible when you open the sash) or the sticker on the frame edge. The first two digits after “ECO-” tell us the series. The 3000 seal kit measures 5/8-inch compressed thickness; the 5000 drip cap is 1-1/4-inch exposed face. We’ve seen Mountain View homeowners order the wrong seal twice because the 3000 and 5000 frames look identical from the interior. We stock both profiles, plus the commercial head flashing in mill and dark-bronze finish. Aftermarket equivalents from Trimco and MFM meet the same specs at roughly 60 percent of OEM cost, and we quote both so you can decide.
Rowan Construction Group Mountain View is an independent service provider, not affiliated with ECO Window Systems.
Signs Your ECO Window Systems Roofing Is Failing
- Water staining on the interior drywall below or beside the window. This usually means the head flashing has separated from the roofing underlayment, or the ECO compression seal has hardened and lost its spring. In Mountain View’s clay-heavy soil zones near Rengstorff Park, frame settlement accelerates the gap.
- Visible gaps between the window frame and the roofing material. The ECO nail fin may have pulled, or the step flashing was never properly counter-flashed. Wind-driven rain exploits this directly.
- Peeling paint or swollen trim boards on the exterior. Water is running down the frame face, not the drainage plane. The 5000 series drip cap may be cracked, or the 3000 seal has compressed permanently flat.
- Draft or temperature drop near the window in winter. Air infiltration through a failed seal bypasses the weatherstrip entirely. We’ve measured 15-degree differentials with an infrared gun on calls near downtown Mountain View.
- Granule accumulation on the sill or visible roof debris in the track. This indicates the roof-to-window transition is no longer shedding water and debris cleanly. The membrane may be bridging instead of lapping.
Before
AfterReplacement Cost & What’s Included
| Service | Mountain View Price Range | What’s Included |
|---|---|---|
| ECO seal kit replacement (3000 series) | $400-$800 | OEM or aftermarket seal, removal of sash, substrate inspection, reinstallation, photo record |
| ECO drip cap / flashing replacement (5000 series) | $600-$1,400 | Head flashing, step flashing integration, roofing membrane tie-in, water test |
| Full ECO window-roof assembly replacement | $8,000-$20,000 | Unit removal, structural rough opening repair, new install, insulation, interior trim, written warranty |
| Commercial ECO-C head flashing repair | $800-$1,800 | Custom brake-formed flashing, sealant backer rod, two-stage waterproofing, documentation |
The range depends on three factors: roof pitch (steeper = more labor), whether the roofing course above the window needs partial removal, and whether we find substrate rot when the trim comes off. We put the number in writing before anyone picks up a tool. Under Clause 1 of The Haven Standard, that written price includes parts, labor, disposal, and the documented photo record. No change proceeds without a signed change order. The 365-Day Done Right Promise covers the workmanship.
DIY or Call Us?
There is one thing you can safely check yourself: the weep holes at the window sill. If they’re clogged with paint or debris, clear them with a pipe cleaner and run a cup of water through to confirm drainage. That costs nothing and solves a surprising number of “leaks” that are actually backed-up condensate.
Everything else carries real risk. The ECO 5000 drip cap is installed under the roofing course above the window, which means working on a pitched surface with fall exposure. The commercial head flashing requires removing roofing fasteners without tearing the underlayment, then sealing the new piece so it laps correctly in sequence with the shingles or tile. Get the lap wrong and water runs behind everything you just installed. We’ve been called to redo three DIY attempts in Mountain View in the past two years, and in each case the repair cost more than the original call would have because we had to strip back good material to find where the water was entering.
We’re not going to tell you it’s impossible. We are going to tell you that Grant Rowan spent two years at Los Angeles Trade-Technical College on framing, concrete, and finish work before he ever picked up a paycheck on a real site, and he still treats roof-to-window transitions with the respect they earn. Call (669) 215-4852 and we’ll give you a written price before any work starts. Estimates are free.
FAQs
The compression seal in the 3000 series typically lasts 12-18 years in Mountain View’s climate; the 5000 PVC drip cap runs 15-25 years before UV brittleness sets in. The direct sun exposure on south-facing elevations in the Old Mountain View neighborhood shaves roughly 20 percent off those numbers. Call (669) 215-4852 for an exact quote on replacement - estimates are free.
Small separations in the ECO head flashing can be sealed with compatible polyurethane sealant if the metal itself is sound and the lap geometry is intact. If the flashing is corroded, kinked, or the fastener holes are wallowed out, replacement is the only fix that lasts. We document the condition with photos and show you before we quote either approach. Call (669) 215-4852 to schedule.
A seal kit replacement on a single ECO 3000 unit takes 2-3 hours. Flashing replacement on the 5000 series runs 4-6 hours because we remove and reinstall the roofing course above. Full assembly replacement is typically a two-day job: day one for removal and substrate repair, day two for install and sealing. We give you the schedule in writing with the price.
We carry 3000 and 5000 series seal kits, drip caps, and standard-width head flashing in both mill and dark-bronze finish. Commercial ECO-C widths vary by job, so we brake-form those to spec after measuring. If your configuration is unusual, we’ll source OEM or equivalent within 24-48 hours and give you the timeline in writing. Call (669) 215-4852 to confirm compatibility.
Measure twice, write it down, then build it that way. That’s how we’ve kept projects within a few percent of the agreed price across 4,000-plus jobs since 2007.
Call (669) 215-4852 to schedule your free estimate. We’ll review your ECO Window Systems model, inspect the roof-to-window transition, and deliver a written price before any work starts. Bring a competitor’s quote and we’ll review it line by line at no charge.
Written by Grant Rowan, Owner, Rowan Construction Group Mountain View at Rowan Construction Group Mountain View, serving Mountain View and nearby areas.