Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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Before
AfterCWS Energy-Efficient Windows in Weston: What to Know First
We provide independent CWS energy-efficient windows in Weston, typically completing measured surveys within 48 hours of contact and installations on scheduled dates, not vague windows. Our written quotes start at $890 per opening for standard CWS replacement with Low-E and argon gas, and that number is the same on the final invoice. This page is for Weston homeowners who already have CWS products and need honest information about repair, replacement, or upgrade paths, including those in the Savanna and Windmill Ranch communities where we’ve handled repeat calls for the same series. Call (754) 812-9260 to schedule your free measured survey.
How CWS Products Fail - and How We Fix Them
- CWS 3100 Series: Seal failure showing as haze between panes. The 3100 uses a dual-seal system that holds up well in dry climates but struggles in Broward’s humidity cycles. We’ve replaced dozens in Weston where the primary PIB seal held but the secondary silicone capillary broke down, letting moisture migrate after year six or seven. We pull the sash, document the seal geometry, and spec a replacement insulated glass unit with warm-edge spacer technology that handles the thermal expansion better.
- CWS 5400 Series: Argon loss without visible breach. This line uses a snap-together sash design that flexes more than welded-frame alternatives. Over time, the corner gaskets compress and the gas escapes gradually; homeowners notice it first as higher AC runtime, not as fog. Our fix is a full sash replacement with factory-spec glass, or where the frame is still square, a reglaze with butyl-backed setting tape and pressure testing to 0.5 psi to verify the seal.
- CWS impact-rated hybrids: Thermal stress cracks in Low-E coating. The reflective layer on early CWS impact laminates was applied too aggressively for south-facing exposures in Weston, where afternoon sun hits glass already heated by the laminated interlayer. We see this on second-story installations above the tree line, particularly in the Isles at Weston. Replacement requires matching the interlayer thickness exactly, or the impact rating voids. We source through CWS’s parts channel and verify the NFRC label before ordering.
- CWS vinyl frames: Bowing in dark exterior colors. CWS’s chocolate brown and forest green formulations absorbed more heat than the manufacturer projected for south Florida. The result is frames that pull out of square, compromising the sash seal and letting conditioned air leak. We measure deviation with digital calipers at three points, and if the bow exceeds 1/8 inch, we recommend replacement with a lighter-color frame or a composite alternative from our PGT or CGI lines.
- CWS fixed picture units: Condensation at the sill in winter cold snaps. These units lack the drainage paths of operable sashes, so when interior humidity spikes and the glass edge is coldest, water pools at the bottom track. In Weston, this happens two or three mornings a year, enough to rot adjacent drywall if the unit was shimmed tight to the rough opening. Our repair adds a weep slot where the frame allows it, or replaces with a thermally broken sill design from the current CWS catalog.
Our CWS Energy-Efficient Windows Process
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Measured survey. Sonia Raman or a verified crew member arrives uniformed with license number visible, measures every opening with a laser and manual backup, and records frame squareness from three reference points. The customer keeps this document.
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Diagnostics and parts decision. We identify the CWS series, manufacturing date if visible on the spacer bar, and the specific failure. OEM parts come from CWS’s Florida distribution center in Medley; quality aftermarket alternatives are noted in writing if the original is discontinued or the lead time exceeds three weeks.
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Written scope and price. Haven Clause 1: the quote matches the measured survey exactly. No line item is added later without a change order signed by both parties.
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Installation with evidence. Verified crews work under Haven Clause 3, photographing each stage: old unit out, rough opening condition, new unit set, shimming, sealant application, and final cleanup. Photos upload to the customer’s record by end of day.
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Performance verification. We test operable sashes for smooth travel, check lock engagement, and on energy-efficient replacements, verify the Low-E coating orientation with a surface resistance meter. The customer signs the completion checklist.
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Documentation and guarantee. The final invoice, photo record, and 365-Day Done Right Promise are delivered as a single packet. If anything in that packet is wrong, Haven Clause 5 applies: we make it right, documented.
Before
AfterWhat CWS Energy-Efficient Windows Costs in Weston
| Scenario | Typical Range | What Moves the Price |
|---|---|---|
| CWS 3100/5400 sash reglaze with Low-E + argon IGU | $890 - $1,340 per opening | Glass size, impact rating, whether the frame needs re-squaring |
| Full CWS frame replacement, standard vinyl | $1,650 - $2,400 per opening | Exterior finish color, custom geometry, stucco repair scope |
| CWS impact-rated hybrid upgrade | $2,200 - $3,100 per opening | Laminate thickness, NFRC U-factor target, permit requirements |
| Whole-home CWS replacement (12+ openings) | $18,000 - $28,000 | Mix of fixed and operable, second-story access, trim package |
These are the prices we write before any work starts. The only way to get your exact number is a measured survey of your specific openings. Call (754) 812-9260 to schedule yours - estimates are free, and we provide a written quote you can compare against any other.
Why Weston Homeowners Call Sightline Windows & Doors Weston for CWS Work
We’ve been measuring and setting windows in Weston long enough to know which CWS series were installed during which builder phase, and what that means for the repair path. Our crews are background-checked, uniformed, and identified by license number before arrival, per Haven Clause 3. The 365-Day Done Right Promise is stamped on every job, not offered as a courtesy.
We’re not limited to CWS. Our eight verified manufacturer lines - PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux - let us specify by what the opening requires, not by what is in stock. If your CWS frame is beyond repair, we’ll show you the CWS replacement and the CGI or PGT alternative that fits the same rough opening, with the U-factor and SHGC numbers for each so you can decide on data, not pressure.
Live phone coverage is available 24/7. The person who answers can schedule your survey, not just take a message.
FAQs
No, if the work is performed by a qualified technician using CWS-specified parts and methods. As an independent CWS service provider, we document every part number and installation detail so the warranty trail stays intact. We do not represent CWS, and we will tell you upfront if a proposed repair risks coverage. Call (754) 812-9260 if you want us to review your warranty documents before scheduling.
Yes, for most series installed after 2005. CWS maintains a parts depot in Medley, Florida, and we order through that channel for warranty-safe repairs. For discontinued lines, we source quality aftermarket IGUs matched to the original sightline and thermal performance, and we note the substitution in writing before ordering. Call (754) 812-9260 with your series number - it’s stamped on the spacer bar or hinge - and we’ll confirm availability.
Replace when the frame is out of square by more than 1/8 inch, when the vinyl has chalked or cracked, or when the cost of repair exceeds 60 percent of replacement. Repair when the failure is isolated to the glass unit, hardware, or seal, and the frame is still structurally sound. We make this recommendation during the measured survey and document the reasoning in writing. Call (754) 812-9260 for a free assessment.
A single sash reglaze takes two to three hours on site. A full-frame replacement runs four to six hours per opening, with stucco or trim repair adding time. Whole-home projects in Weston typically schedule across two to four days depending on access and weather. We set the completion date in writing at scheduling, not as a range. Call (754) 812-9260 to discuss your timeline.
CWS tends to price aggressively in the vinyl replacement market, with solid U-factor numbers but slightly higher frame profiles than PGT’s slim-line options. CGI leads on impact-rated aluminum aesthetics. The right choice depends on your existing rough opening dimensions, your HOA’s design guidelines, and whether you’re optimizing for thermal performance, noise reduction, or impact rating. We carry samples from all three lines to the measured survey. Call (754) 812-9260 to compare.
Ready to get the exact price for your CWS windows? Call (754) 812-9260 to schedule your free measured survey. You’ll receive a written quote before any work starts, and that quote will match your final invoice. Measure it right the first time. The window does not care how confident you were.
Written by Sonia Raman, Owner, Sightline Windows & Doors Weston at Sightline Windows & Doors Weston, serving Weston and nearby areas.