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ES Windows Home Additions & ADU: The Long Beach Owner’s Guide
ES Windows-compatible systems in Long Beach home additions and ADU projects typically run $45,000-$130,000 installed, depending on whether you’re extending an existing structure or building a detached unit. We stock and install ES Windows products for these applications across Long Beach, from Belmont Shore to Bixby Knolls, and can usually get a crew on-site within a few business days once the written quote is signed. Most owners realize something’s off when the window wall in their new addition starts leaking during the first winter storm, or when the thermal break they paid for isn’t keeping the ADU cool enough in August.
Which ES Windows Models This Applies To
ES Windows manufactures impact-resistant and thermally broken aluminum systems primarily for the coastal and high-wind markets, and their product lines show up in Long Beach additions and ADUs in a few distinct configurations. The ES 5000 Series and ES 8000 Series are the most common in residential work; the 5000 is a non-impact thermally broken frame, while the 8000 is Miami-Dade rated for impact resistance. The label is usually etched into the frame edge or printed on a sticker inside the jamb, and it’ll show a series number, manufacturing date, and NFRC rating.
Here’s the compatibility gotcha: ES Windows changed their thermal break geometry around 2018. A sash or frame extrusion from a 2016 unit won’t mate cleanly with a 2020 unit, even within the same series number. We’ve seen this in Long Beach when an owner tries to match a failed window in a 2017 addition with a new unit from the current catalog. The fix is either sourcing period-correct extrusions through ES’s commercial division or replacing the entire rough opening as a matched set. For most Long Beach ADU work, we spec the 8000 Series because the city sits in a wind-borne debris region under the CBC, and inspectors here know the Miami-Dade sticker when they see it.
OEM parts from ES Windows come with a 10-year finish warranty and matching NFRC certificates, which matters for Title 24 compliance in California. Quality aftermarket equivalents exist from C.R. Laurence and Oldcastle, but we only spec them when the original series is discontinued and the customer accepts that the thermal performance numbers may differ slightly on the HERS report.
Signs Your ES Windows Home Additions & ADU Is Failing

- Water intrusion at the sill or head during rain. In Long Beach, this usually traces to failed perimeter sealant where the aluminum frame meets the stucco or siding. The ES thermal break doesn’t fail, but the backer rod and sealant behind it does, especially on south-facing walls that cook all afternoon.
- Condensation between panes on dual-glazed units. The insulated glass unit (IGU) has lost its seal. ES Windows doesn’t manufacture the glass itself; they source IGUs from Cardinal or Guardian. The aluminum frame is fine, but the glass needs swapping, and the desiccant in the spacer is saturated.
- Difficulty latching or rolling (on sliding systems). The nylon rollers in ES sliding doors fatigue after 8-12 years of salt air exposure near the Long Beach coast. The track itself may also be dented or corroded, which a roller swap alone won’t fix.
- Draft or temperature stratification near the frame. The polyamide thermal break can degrade if the unit was installed without proper shimming, causing frame deflection that cracks the break. You feel it as a cold strip along the floor in January.
- Chalking or chalky residue on the frame surface. The Kynar 500 finish is failing, usually from improper cleaning with abrasive chemicals or from coastal salt accumulation that wasn’t washed off. This is cosmetic until the aluminum oxidizes, which takes years, but it hurts resale value in Long Beach’s competitive market.
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A full ES Windows wall replacement in a Long Beach home addition or ADU runs $45,000-$130,000 depending on square footage, structural modifications, and whether we’re tying into existing slab or pouring new. For component-level work, IGU replacement in an existing ES frame runs $800-$2,500 per opening; roller and track service on a sliding door runs $400-$1,200; full sash replacement where the thermal break has failed runs $2,200-$5,500 per unit.
What drives the range: access (scaffolding vs. ground-level), whether the original flashed opening is intact, and if Title 24 updates trigger additional insulation or mechanical requirements. Every quote we write in Long Beach is flat-priced with line-item scope, and no work proceeds without a signed change order if something shifts. Under Clause 1 of the Haven Standard, that written price is delivered before anyone picks up a tool. Our 365-Day Done Right Promise covers the installation, and ES Windows backs the product finish for 10 years.
DIY or Call Us?

There’s a safe middle ground here. An owner can check the label location, photograph any water staining for documentation, and verify that weep holes at the sill aren’t clogged with debris or paint. That’s useful information, and we ask for those photos before we dispatch.
What goes wrong with DIY: ES Windows frames are heavy-gauge aluminum, and a single fixed unit in a home addition can weigh 80-150 pounds. Improper handling bends the frame, voids the warranty, and often cracks the IGU. More critically, any work that disturbs the weather-resistive barrier behind the frame requires re-flashing to California Building Code, and Long Beach inspectors will flag tape-only repairs. We don’t recommend owners remove or install these units themselves. Call (424) 567-7009 and we’ll schedule a free estimate with a written scope and price before any work starts.
FAQs
How long do ES Windows systems last in Long Beach?
The aluminum frame itself lasts 30-plus years; the IGU seal typically fails in 15-20 years near the coast, and rollers in sliding units need service every 8-12 years. Salt air accelerates hardware fatigue compared to inland installations. Call (424) 567-7009 for an exact quote on your specific units - estimates are free.
Can the thermal break be repaired instead of replaced?
No. The polyamide thermal break is extruded into the aluminum during manufacturing and cannot be field-repaired. Once cracked or thermally compromised, the sash or frame section must be replaced. We verify this with a thermal imaging scan before quoting. Call (424) 567-7009 for an exact quote - estimates are free.
How long does a full ES Windows replacement take in an ADU?
A typical 400-square-foot ADU with four openings takes 3-5 working days for removal, rough-opening repair, and install, plus any stucco or siding touch-up. Permits add 2-4 weeks in Long Beach depending on plan-check workload. Call (424) 567-7009 for an exact quote - estimates are free.
Do you stock ES Windows parts on your Long Beach trucks?
We stock common rollers, latches, and sealant profiles; IGUs and frame extrusions are ordered to spec once we measure and photograph the existing unit. ES Windows maintains a distribution point in Southern California, so most custom orders arrive within 5-7 business days. Call (424) 567-7009 for an exact quote - estimates are free.
Rowan Construction Group Long Beach is an independent service provider and is not affiliated with ES Windows. We also stock and install parts for KraftMaid, Cambria, and Silestone products.
Measure twice, write it down, then build it. That’s how we’ve kept projects within a few percent of the agreed price across 4,000-plus jobs since 2007.
Written by Grant Rowan, Owner, Rowan Construction Group Long Beach at Rowan Construction Group Long Beach, serving Long Beach and nearby areas.







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