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ES Windows Window Installation: The Boca Raton Owner’s Guide
ES Windows window installation in Boca Raton typically runs $380-$1,200 per opening depending on series, impact rating, and whether the frame is being replaced or inserted into existing buck. We stock ES Windows hardware, fasteners, and seal packages on every truck, and most replacements are completed in a single visit once the measured survey is done. Most Boca Raton owners discover their ES Windows unit needs attention when the sash won’t stay open, the interlock gaps let water through during a summer storm, or the impact glass fogs between the panes after a pressure event.
Which ES Windows Models This Applies To
ES Windows manufactures three residential series we regularly see in Boca Raton: the ES 100 single-hung and horizontal roller (non-impact), the ES 2000 impact-rated line, and the ES 4000 thermally broken aluminum series. The label is usually etched into the glass corner or stamped on the frame edge; if it’s worn off, we measure the frame depth, check the wall thickness, and match the glazing bead profile to the factory catalog. The ES 2000 uses a heavier extrusion and stainless steel fasteners that won’t interchange with the ES 100; mixing them leads to stripped threads and misaligned interlocks within two seasons.
We install OEM ES Windows parts and gaskets, though we also stock quality aftermarket balances and rollers when the OEM lead time exceeds what the job allows. The decision depends on what fails: we won’t substitute a roller, but a compatible balance spring from an aftermarket supplier with the same cycle rating and Florida Product Approval is acceptable under our warranty. Sightline Windows & Doors Boca Raton is an independent service provider, not affiliated with ES Windows.
Signs Your ES Windows Window Installation Is Failing

- Sash drops or won’t stay open. The coil balance has lost tension, usually from corrosion in the balance shoe after salt-air exposure. In Boca Raton’s coastal environment, we see this at 6-10 years on east-facing units, sooner if the weep holes are clogged and water sits in the frame channel.
- Water intrusion at the sill during heavy rain. The sill pan flashing was omitted or the end dams were caulked instead of sealed with backer rod and compatible sealant. ES Windows units have a specific sill pan slope; if the installer flattened it to fit a retro application, water backs up at the jambs.
- Fogging between impact glass panes. The insulated glass unit (IGU) seal has failed, allowing moist air into the airspace. In South Florida’s UV load, this happens when the PIB primary seal degrades faster than the secondary structural seal, a pattern we’ve tracked in ES 2000 units with 2016-2019 date codes.
- Difficulty latching or visible gap at the interlock. The keeper has shifted, the sash is out of square, or the interlock weatherstrip has compressed past recovery. On ES 4000 thermally broken frames, thermal cycling can loosen the corner keys if they weren’t crimped to spec at the factory.
- Frame corrosion or pitting at the exterior face. Anodized aluminum doesn’t rust, but the anodic coating can break down where dissimilar metals contact or where the finish was damaged during installation. We see this where uncoated fasteners were substituted or where the frame sits in standing water from a failed sealant joint.
Before
AfterReplacement Cost & What’s Included
| Scope | Price Range | What Drives It |
|---|---|---|
| Balance/roller replacement (existing frame) | $380-$520 | Single-hung vs. horizontal roller; access to balance chamber |
| IGU replacement (impact-rated) | $680-$940 | Glass size, Low-E coating, laminated thickness |
| Full frame replacement (insert install) | $890-$1,200 | Series, impact rating, trim repair scope |
| Full frame replacement (new construction) | $1,050-$1,400 | Stucco cutback, sill pan fabrication, permit |
The range reflects what we find when we open the wall: termite damage in the buck, non-compliant fasteners from a previous installer, or a rough opening that’s out of plumb by more than the ES Windows tolerance of 1/4 inch per foot. Our quote is the measured survey you keep; the final invoice matches it unless you add scope. Every installation carries the 365-Day Done Right Promise under the Haven Standard, with a documented photo record of the finished work.
DIY or Call Us?

An owner can safely check the weep holes for debris, verify the sash lock engages fully, and confirm the frame screws are tight with a handheld driver. Beyond that, ES Windows installation involves work we don’t recommend without training: impact-rated glass weighs 8-12 pounds per square foot and requires two people with suction cups; the balance springs in single-hung units are under tension and can release suddenly; and the Florida Building Code requires a Miami-Dade or Florida Product Approval notice for any impact-rated replacement, which must be documented for your windstorm inspection.
We’ve been called to Boca Raton jobs where a homeowner removed the sash to clean the track and couldn’t reinstall it because the balance locks released, or where a well-meaning helper cracked the laminated lite trying to force it into a twisted frame. Measure it twice, write it down, then we can talk price. If you’re unsure what you’ve got, call (561) 200-8592 and we’ll walk through the label location over the phone before scheduling the survey.
FAQs
Twelve to twenty years for the frame and hardware, six to ten for the balance system on coastal exposures, and fifteen to twenty-five for the IGU if the primary seal holds. Salt air, direct west sun, and pressure-washing accelerate wear. Call (561) 200-8592 for an exact quote on your unit - estimates are free.
No. Once the desiccant is saturated and fog appears between the panes, the IGU must be fabricated new to the exact lite size and edge deletion. Defogging injections are temporary and void the ES Windows warranty. Call (561) 200-8592 for an exact quote - estimates are free.
Balance or roller replacement: 45-90 minutes per unit. IGU replacement: 2-3 hours including removal, glazing tape application, and reinstallation. Full frame replacement: one day for a typical opening, two if stucco repair and repainting are included. Call (561) 200-8592 to schedule your free estimate.
We stock balances, rollers, locks, keepers, and seal packages for all three ES series. IGUs and complete frames are ordered to the measured survey and typically arrive in 5-10 business days. Call (561) 200-8592 to confirm availability for your model - estimates are free.
Ready to get your ES Windows unit measured and priced? Call (561) 200-8592 to schedule your free estimate. We’ll bring the catalog, the truck stock, and the measured survey you keep. Every quote is written before any work starts, every crew member is background-checked and uniformed with license number visible, and every job leaves a documented photo record under the Haven Standard.
Written by Sonia Raman, Owner, Sightline Windows & Doors Boca Raton at Sightline Windows & Doors Boca Raton, serving Boca Raton and nearby areas.










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