Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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Before
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Before
AfterES Windows Home Additions & ADU: The Irvine Owner’s Guide
We stock and install ES Windows-compatible window systems for home additions and ADU projects in Irvine, with typical installed pricing from $45,000 to $130,000 for full additions and $90,000 to $220,000 for detached ADUs. Most ES Windows spec consultations happen within 48 hours of first contact, and we carry common frame profiles and glazing packages for the ES 5000, ES 6000, and ES 8000 series in our local inventory. Most Irvine owners realize their addition needs new or matched windows when the existing units fog between panes, the aluminum frames corrode at the weep screed, or the HOA flags a visual mismatch during final inspection.
Which ES Windows Models This Applies To
ES Windows organizes its residential lines by frame depth and impact rating. The ES 5000 is a non-impact vinyl-framed line common in interior California applications, the ES 6000 adds aluminum reinforcement for larger openings, and the ES 8000 is the impact-rated aluminum system specified for high-wind zones and many Irvine HOA master plans. The model stamp appears on the spacer bar between glass panes or on a corner label of the operable sash; if that label is sun-faded, measure the frame depth from interior to exterior finish, then the visible glass dimensions.
We source OEM ES Windows extrusions and hardware directly through the manufacturer’s West Coast distribution in Santa Fe Springs, which keeps lead times under two weeks for standard colors. For ADU projects where the original ES line has been discontinued, we match the sight lines and finish with an aftermarket equivalent from our vetted catalog, including brands like KraftMaid for interior trim integration and Cambria for sill extensions where stone is specified. The gotcha in Irvine’s coastal climate: ES 5000 vinyl frames can chalk and become brittle within 12 to 15 years if the western exposure gets full afternoon sun, so we spec the 6000 or 8000 series for any west-facing ADU wall.
Signs Your ES Windows Addition or ADU Needs Attention
- Fogging or condensation between glass panes. The insulating glass unit (IGU) seal has failed, which means the desiccant inside the spacer bar is saturated. In Irvine’s morning marine layer followed by dry afternoon heat, this thermal cycling accelerates seal degradation compared to inland climates.
- Difficulty latching or dragging sashes. The nylon rollers in the ES tilt-wash balance system have flattened or the spiral balance has lost tension. We see this most in second-story additions where the original installer set the frame out of square to save time.
- Water staining at the sill or drywall below. The weep holes in the aluminum frame are clogged with stucco sand or the sill pan was omitted during original construction. Irvine’s occasional driving winter rain finds this fast.
- Corrosion pitting on exterior aluminum. The anodized finish has broken down, usually from contact with incompatible sealants or ocean-air salt exposure within five miles of the coast. The ES 8000 series holds up better here, but even it needs inspection after decade ten.
- HOA rejection during final inspection. The replacement window’s sight line, grid pattern, or exterior color does not match the community’s approved materials list. This is a paperwork fix, but it stops certificate of occupancy until resolved.
Before
AfterReplacement Cost & What’s Included
| Project Scope | Irvine Price Range | What’s Included |
|---|---|---|
| Single window replacement (ES 5000/6000) | $800 - $2,400 | Unit, removal, sill pan, insulation, interior trim, disposal |
| Full home addition (new construction) | $45,000 - $130,000 | Framing, ES Windows package, insulation, drywall, flooring, electrical rough |
| Detached ADU (studio to 2-bedroom) | $90,000 - $220,000 | Foundation, framing, ES 6000/8000 package, MEP, finishes, final inspection |
| Garage conversion to ADU | $30,000 - $80,000 | Floor elevation, egress window, ES Windows, kitchenette, bath rough |
The spread within each range comes down to three factors: whether the existing opening needs structural modification, the glazing specification (dual-pane low-E is standard; triple-pane or laminated impact glass adds 30 to 40 percent), and the interior finish level. Under Clause 1 of The Haven Standard, we deliver a written line-item quote before any work starts, and no change proceeds without a signed change order. Our 365-Day Done Right Promise covers the installation and the ES Windows factory warranty transfers to you at completion.
DIY or Call Us?
An owner can safely check the model label, measure rough openings, and photograph any water damage for our review. What goes wrong with DIY on ES Windows specifically: the tilt-wash balance system requires a special loading tool to set spring tension, and an out-of-square install voids the manufacturer’s warranty on the IGU seal. For additions and ADUs, California’s Title 24 energy code mandates specific U-factor and SHGC values by climate zone; Irvine sits in Zone 8, and a window that passes in Zone 10 fails here. The permit application also requires a HERS rater verification for new construction, which a homeowner cannot self-certify.
We’re an independent service provider, not affiliated with ES Windows. If you’re staring at a fogged unit or an HOA correction notice, call (657) 227-2502 and we’ll schedule a free estimate with a written price before anyone picks up a tool.
FAQs
Vinyl ES 5000 series units typically perform 15 to 20 years in Irvine before frame degradation or seal failure, while aluminum ES 6000 and 8000 series often reach 25 to 30 years with proper maintenance. Coastal properties within three miles of the Pacific see faster anodized finish wear. Call (657) 227-2502 for an exact condition assessment, estimates are free.
No. Once the desiccant is saturated and the seal has failed, the glass unit must be replaced, not defogged. Defogging services drill holes and apply a coating that masks the symptom for months but does not restore insulating value or warranty coverage. Call (657) 227-2502 for a replacement quote with exact measurements.
Individual replacement units install in two to four hours. A full addition or ADU window package typically sequences across three to five days during the framing-to-drywall window, with final hardware adjustment after interior paint. We coordinate with your inspector’s availability to avoid delays. Call (657) 227-2502 to schedule around your project timeline.
We stock common ES 6000 and 8000 frame profiles, hardware sets, and screen kits in our Irvine inventory, with same-week availability for most colors. Custom sizes or discontinued ES 5000 series lines ship from Santa Fe Springs within 10 to 14 business days. Call (657) 227-2502 to confirm stock for your specific model and size.
Grant Rowan trained in construction technology at Los Angeles Trade-Technical College before founding Rowan Construction Group in 2007. Over the past several years, he and his crew have worked throughout Irvine, including projects near the Irvine Spectrum area where tight HOA standards and mixed commercial-residential zoning keep every scope of work honest. “Measure twice, build it once, write it down” - that discipline is what The Haven Standard was built on, and it’s why 4,000-plus projects have finished within a few percent of the number the customer agreed to.
Ready to match your ES Windows system to your addition or ADU? Call (657) 227-2502 to schedule your free estimate. We’ll deliver a written price before any work starts, and you’ll receive a documented photo record of every visit as standard.
Written by Grant Rowan, Owner, Rowan Construction Group Irvine at Rowan Construction Group Irvine, serving Irvine and nearby areas.