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ES Windows Window Replacement: The Westchester Owner’s Guide
We replace ES Windows window sashes, glass units, balance systems, and hardware across Westchester on a regular basis, and in most cases the installed job runs between $340 and $1,400 depending on the window size, series, and whether we’re swapping a single sash or the complete unit. We carry ES Windows-compatible replacement parts on our trucks, so a straightforward sash or balance swap is usually done in one visit. The most common way Westchester homeowners discover the problem is a window that suddenly won’t stay up, a sash that drops hard when opened, or condensation trapped between the panes that won’t wipe away.
That fog between the glass means the seal is gone. In South Florida humidity, a failed seal turns into visible moisture fast, and once the glass fogs, the insulating gas has already escaped. The window still looks fine from eight feet away, but it’s no longer doing its job. Ed Winslow has spent years replacing these exact parts in Westchester homes, and we know which ES Windows models fail in specific ways and what it takes to get them operating like new.
Which ES Windows Models This Applies To
ES Windows builds impact-rated and non-impact aluminum window lines that show up throughout Westchester, especially in homes built or renovated after the mid-1990s. The brand’s product range includes single-hung, horizontal roller, casement, and fixed picture windows, along with sliding glass doors. The parts we most often match are for ES Windows’ aluminum impact lines and their standard insulated glass packages, but the specific part your window needs depends on the series, the frame depth, and the glass type.
Identification starts with the label. Most ES Windows units carry a small silver or white sticker on the head of the frame or the edge of the sash with the series code, order number, and sometimes the manufacture date. If the sticker is gone, we measure the visible glass area, the sash thickness, and the balance shoe or roller profile to identify the window. One compatibility gotcha Westchester owners need to know: ES Windows has changed roller and balance hardware between production runs, so a part that fits a 2005 horizontal roller may not fit a 2015 unit even if the frame dimensions are identical. That’s why we match to the extrusion profile, not just the size.
For the OEM-versus-aftermarket decision, our view is practical. Genuine ES Windows parts are the default for impact-rated openings, because the product approval and performance depend on the tested assembly. For non-impact windows, high-quality aftermarket balances, rollers, and weatherstripping often match or beat original performance at a lower price. We’ll tell you which route makes sense for your window and your budget, and we’ll show you the difference in writing before any work starts.
Signs Your ES Windows Window Replacement Is Failing
- The sash won’t stay up or is hard to lift. This points to a worn balance system. ES Windows single-hung and double-hung units use block-and-tackle or spiral balances, and once the spring tension or the nylon cord inside gives out, the sash loses its counterweight. In Westchester’s salt air, the metal components inside the balance oxidize faster than they would inland.
- Condensation or fog between the glass panes. The hermetic seal around the insulated glass unit has failed. Once outside air gets in, the argon or krypton fill escapes and the glass loses its thermal and acoustic performance. This won’t fix itself, and it gets worse with every temperature swing.
- You can feel drafts around the closed sash. Weatherstripping on the ES Windows frame channel compresses and hardens over time, especially in direct afternoon sun on a west-facing Westchester wall. The gap lets conditioned air out and humid outdoor air in, and your AC bill notices before you do.
- The window rattles or shifts when you walk past it. Loose or worn rollers on an ES Windows horizontal roller let the sash wobble in its track. A roller with a flat spot will make the window feel gritty and noisy every time it slides, and it’s putting extra strain on the frame each cycle.
- Water staining on the interior sill or drywall below the window. This usually means the weep system is clogged or the drainage design has been compromised, and South Florida’s punishing rainstorms find the path of least resistance. Left unaddressed, this turns into a much bigger problem than any window part.
Replacement Cost & What’s Included
For a Westchester ES Windows replacement, here’s what we’re seeing on installed pricing:
- Single sash replacement with new glass: $340 to $650
- Balance system replacement (per sash): $180 to $320
- Roller and weatherstripping rebuild (per sliding window): $220 to $410
- Complete window unit replacement, impact-rated: $900 to $1,400+
What drives the spread is glass type, window size, and whether the opening has impact requirements. Impact glass costs more, period, and a 72-inch-wide picture window costs more than a 36-inch casement. Every quote we give in Westchester is a line-item price: parts, labor, haul-off, and warranty separate, in writing. You know exactly what you’re paying before a single screw comes out. And no, the price doesn’t change once work starts. Ed’s name is on the truck. If we said it, it’s the price.
Every replacement carries the Done Right Promise. If it’s not done right, Winslow makes it right.
DIY or Call Us?
Some things you can safely check yourself: look for the label to identify the series, photograph the window and hardware so you have a reference, and note whether the problem is the glass, the operation, or the seal around the frame. That information helps us come prepared with the right parts on the first trip, and it helps you understand your own window.
Where we don’t recommend DIY is in the actual replacement work on an ES Windows unit. Impact-rated windows in Westchester are part of a tested assembly. When you swap a sash or a piece of hardware and it’s not seated exactly right, you’ve potentially changed how that window performs in a storm, and manufacturer performance depends on the assembly staying intact. Balances are under tension and can bite. Glass units are heavy and break hard. We’ve fixed more than a few DIY attempts that cost the homeowner more than the original repair would have. Call us at (850) 721-1218 and let’s do it once, correctly.
FAQs
In our experience, ES Windows insulated glass seals in South Florida last roughly 12 to 18 years before fog becomes noticeable, with west-facing windows often failing first because of the daily heat load. Impact-rated units tend to hold up longer, but salt air and humidity are relentless. Call (850) 721-1218 and we’ll confirm whether it’s a seal failure or something else.
No. Once the seal between the glass panes fails, the only real fix is replacing the insulated glass unit or the entire sash. Defogging attempts are temporary and the fog returns. We’ll order the correct glass for your ES Windows series and install it with the warranty intact.
Most single-sash or balance replacements on ES Windows units are done in one visit, usually within an hour or two once we’re on site. Full-frame replacements take longer, but we’ll give you a straight answer on timing before we schedule. Call (850) 721-1218 for an estimate and a schedule that respects your time.
We keep the most common ES Windows-compatible balances, rollers, weatherstripping, and hardware on our trucks, and we have quick access to glass packages and impact-rated sashes through our supplier network. We also stock replacement parts for PGT, CGI, and CWS windows. For less common series, we’ll give you an honest lead time up front.
If your ES Windows window is fogged, sagging, or rattling, don’t wait until the next storm season. Call Winslow Windows & Doors at (850) 721-1218 for a free estimate. A real person answers, 24 hours a day. We’ll come out to your Westchester home, identify the part, and give you an upfront price before any work begins. The one down the road.
Written by Ed Winslow, Owner, Winslow Windows & Doors at Winslow Windows & Doors, serving Westchester and nearby areas.
Six Reasons Homeowners Choose Winslow Windows & Doors
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.








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