Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
ECO Window Systems Window Replacement: The Boca Raton Owner’s Guide
ECO Window Systems window replacement in Boca Raton typically runs $340 to $780 per opening for installed standard-size units, with impact-rated configurations landing higher. We stock ECO Window Systems sashes, balances, and hardware on our trucks, and most replacements we measure in the morning are installed by afternoon. Homeowners usually catch the problem when a sash won’t stay up, the lock bar grinds, or they feel the Atlantic humidity pushing through a failed weatherstrip after a storm season.
Which ECO Window Systems Models This Applies To
ECO Window Systems builds three residential lines we see in Boca Raton: the 3000 Series single-hung, the 5000 Series double-hung, and the 7000 Series impact-rated units common in HOA communities near the Intracoastal. The part you need depends on which line is in your wall.
Check the sash label first. ECO stamps a white adhesive tag on the top rail of operable sashes with the series number, glass package code, and manufacturing date. If the label is gone, measure the visible glass width and height to the nearest 1/8 inch, then the frame depth from interior stop to exterior stop. The 3000 Series uses a 2-5/8 inch frame depth; the 5000 and 7000 Series both run 3-1/4 inches, but the 7000 carries the DP-50 impact rating that requires heavier balances and reinforced interlocks.
We source OEM balances and sash cams directly from ECO’s Florida distribution center in Medley. For weatherstripping and certain lock sets, we use quality aftermarket equivalents that match the OEM spec at lower cost. We tell you which we’re proposing before we order, and we note the origin on your written quote.
Sightline Windows & Doors Boca Raton is an independent service provider. We are not affiliated with ECO Window Systems.
Signs Your ECO Window Systems Window Replacement Is Failing

- Sash drops or won’t stay open. The coil balance or block-and-tackle system has lost tension. In Boca Raton’s salt air, we’ve seen balances corrode internally in as little as seven years, especially on east-facing elevations.
- Visible moisture between glass panes. The insulated glass unit (IGU) seal has failed. Once argon or air escapes and humid Florida air enters, the Low-E coating degrades and your U-factor effectively doubles.
- Lock bar won’t engage or grinds. The keeper has shifted or the lock mechanism has worn. On ECO’s 5000 Series, the multi-point lock rail can twist if the sash is operated while the lock is partially engaged.
- Draft around the frame perimeter. Compression weatherstripping has flattened or the sill track has accumulated debris that prevents proper closure. We check this with a smoke pencil during our survey.
- Cracked or warped frame members. Heat buildup in dark-colored frames, common on west-facing Boca Raton homes, can cause vinyl profiles to bow. This is structural; weatherstripping won’t fix it.
Before
AfterReplacement Cost & What’s Included
| Component/Service | Typical Range (Boca Raton) |
|---|---|
| Standard sash replacement (3000/5000 Series) | $340 - $520 |
| Impact-rated sash replacement (7000 Series) | $580 - $780 |
| IGU (glass-only) replacement | $280 - $440 |
| Balance hardware replacement | $180 - $290 |
| Full frame replacement, standard opening | $890 - $1,400 |
What drives the range: size, series, whether the opening is impact-rated, and what we find when we remove the interior stop. A rotted sill or out-of-square rough opening adds time and material. Your written quote from Sightline names every line item before we start. The price on the measured survey is the price on the invoice. Haven Clause 1.
Every ECO Window Systems replacement we install carries our 365-Day Done Right Promise under the Haven Standard. If the sash doesn’t operate smoothly, the lock doesn’t seat, or the weatherstrip doesn’t seal, we return and correct it. No charge. No argument.
DIY or Call Us?

There are two things a homeowner can safely check: whether debris is blocking the sill track, and whether the lock keeper screws have loosened. Clean the track with a vacuum and soft brush. Tighten keeper screws with a Phillips head. Beyond that, call us.
Window sashes are heavy. A failed balance means the sash is unsupported, and releasing the tilt latch without securing the sash first can send twenty pounds of glass and vinyl toward your floor, or your hands. We have the sash supports and the practice. You have better things to do on a Saturday.
Measure it twice, write it down, then we can talk price. Sonia Raman started this practice at Los Angeles Trade-Technical College and hasn’t stopped. Call (561) 200-8592 to schedule your free estimate. We’ll bring the measured survey, the written price, and the truck stock.
FAQs
Twelve to twenty years for standard vinyl units, with coastal exposure and lack of overhangs pulling that toward the lower end. Impact-rated 7000 Series units we installed in Broken Sound in 2016 are still performing; the ones without proper flashing detail at the head are the ones we see failing early. Call (561) 200-8592 for an exact condition check - estimates are free.
Sometimes. A failed balance, worn lock, or torn weatherstrip is repairable. A cracked frame, fogged IGU, or sash that has warped out of square is not. We diagnose on site and tell you which category you’re in before we quote. Call (561) 200-8592 for an exact quote - estimates are free.
A sash or balance swap in a standard opening takes ninety minutes to two hours. A full frame replacement runs four to six hours, including interior and exterior trim work. We arrive with the part already matched to your measured survey. Call (561) 200-8592 to schedule.
We stock balances, sash cams, lock sets, and common weatherstripping profiles for the 3000, 5000, and 7000 Series on our trucks. For glass packages or custom-color frames, we order from ECO’s Medley distribution center with a five- to seven-day lead time. We tell you which category your job falls into when we quote. Call (561) 200-8592 to confirm availability.
Written by Sonia Raman, Owner, Sightline Windows & Doors Boca Raton at Sightline Windows & Doors Boca Raton, serving Boca Raton and nearby areas.










Before
After
Before
After