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ES Windows Windows & Doors: The Sherman Oaks Owner’s Guide
We stock and install ES Windows-compatible windows and doors across Sherman Oaks, with typical installed replacement costs running $4,500-$15,000 for standard window replacement and $8,000-$25,000 for impact-rated units. Most ES Windows hardware, seals, and operator parts are on our trucks or available next-day through our supply chain. The first sign of trouble is usually a window that won’t stay open, a door that drags on the sill, or a whistling sound along the frame during Santa Ana wind events.
Which ES Windows Models This Applies To
ES Windows manufactures aluminum and vinyl window and door systems primarily for the South Florida and Caribbean markets, but their products appear throughout Sherman Oaks in homes built during the 2015-2020 boom, especially in the hills north of Ventura Boulevard where impact-rated specifications were specified for fire-zone and wind-exposure requirements. The most common series we encounter are the ES 100 and ES 200 aluminum single-hung and horizontal-roller lines, plus the ES 5000 impact door system.
Identification starts with the etched marking in the glass corner, which carries the ES logo and a four-digit date code. The hardware cavity dimensions differ between series: ES 100 operators use a 1-1/4 inch spindle length, while ES 200 units take a 1-1/2 inch spindle, and swapping them causes immediate cam failure. We source OEM ES hardware through their California distribution partner, though for discontinued series we spec Truth Hardware or AmesburyTruth equivalents with matching spindle geometry and load ratings. The critical compatibility gotcha is the keep and strike alignment: ES Windows uses a proprietary 45-degree mortise angle on pre-2018 units that standard aftermarket hardware doesn’t match without shimming, which we document in our photo record so you see exactly what was adapted and why.
Signs Your ES Windows Windows & Doors Is Failing

- Window sash drops or won’t stay raised. The coil balance system has lost tension, usually from a fatigued spring or a worn cam. In Sherman Oaks, we see this accelerated by the thermal cycling between 55-degree winter mornings and 95-degree summer afternoons, which work-hardens the spring steel faster than in coastal climates.
- Door sticks or drags at the threshold. The adjustable sill cap has compressed or the hinge jamb has settled. On ES sliding doors, the tandem roller carriage often cracks at the axle boss after roughly 8-12 years of service in our dry climate.
- Visible gap or light leak at the frame perimeter. The bulb seal or pile weatherstrip has flattened beyond recovery. ES Windows used a dual-durometer EPDM seal on units shipped before 2019 that degrades faster in UV than the silicone-blend formulation they switched to afterward.
- Condensation between glass panes. The insulated glass unit (IGU) seal has failed, breaking the argon fill and allowing moisture migration. This is not a frame issue but a glass issue, and we replace the IGU rather than the entire sash if the frame and hardware are sound.
- Operator handle spins without engaging the lock. The mortise gearbox has stripped its internal zinc gears, a known wear point in ES operators from the 2016-2018 production run when a supplier change reduced the gear wall thickness by approximately 0.3mm.
Before
AfterReplacement Cost & What’s Included
For Sherman Oaks properties, ES Windows window replacement runs $4,500-$15,000 depending on unit count, floor level, and whether the original installations used nail-fin or block-frame mounting. Impact-rated ES 5000 door systems range $8,000-$25,000 installed, including permit, inspection, and haul-away. Hardware-only repairs, operator replacements, or seal retrofits typically fall between $180-$650 per opening.
Every quote we deliver is a flat written price with line-item breakdown: parts, labor, permit fees if applicable, and disposal. Under Clause 1 of the Haven Standard, that price is fixed before work starts, and no change proceeds without a signed change order. Our 365-Day Done Right Promise covers the installation and workmanship. You’ll receive a documented photo record of the condition we found, the parts installed, and the finished operation before we leave.
DIY or Call Us?

An owner can safely inspect the etched glass code, operate the sash to feel where binding occurs, and check the sill track for debris. What we don’t recommend: removing a fixed panel or attempting to reset a dropped IGU. ES Windows units over 40 inches wide use tempered glass that weighs 6-8 pounds per square foot, and the block-frame systems common in Sherman Oaks retrofits carry load through the head jamb into structure you can’t see until it’s exposed. We’ve responded to calls where a homeowner removed the wrong screw and the entire sash assembly tilted into the room. If the repair involves glass handling, structural anchorage, or ladder work above grade, we recommend a trained technician. Call (213) 221-0788 and we’ll schedule a free estimate with the written price delivered before any work starts.
FAQs
Hardware and seals average 10-15 years in our climate, though the Santa Ana wind cycles and UV exposure at elevation, particularly in the hills north of Ventura Boulevard, can compress that to 8-12 years for exterior seals. Call (213) 221-0788 for an exact quote on replacement - estimates are free.
Some items yes: a stripped operator handle can be replaced independently of the gearbox if the cam is intact, and pile weatherstrip is renewable. Failed IGUs, cracked roller carriages, and fatigued coil balances require full replacement. We’ll tell you which category yours falls into during the estimate. Call (213) 221-0788 to schedule.
Single hardware replacement: 45-90 minutes per opening. Full window replacement: one day for up to six units on a single story, two days for multi-story or impact-rated installations requiring inspection. We pull permits and schedule inspections as part of the scope. Call (213) 221-0788 for a timeline on your specific job.
We carry common ES-compatible operators, locks, and seals for the 100 and 200 series. Specialty impact hardware and ES 5000 door components are next-day from our Los Angeles distributor. We’ll confirm availability when you call and schedule. Call (213) 221-0788 - estimates are free.
Rowan Construction Group Sherman Oaks is an independent service provider and is not affiliated with ES Windows. We also stock parts for KraftMaid, Cambria, and Silestone products.
Written by Grant Rowan, Owner, Rowan Construction Group Sherman Oaks at Rowan Construction Group Sherman Oaks, serving Sherman Oaks and nearby areas.







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