Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
CWS Custom & Geometric Windows in Lantana: What to Know First
As an independent CWS service provider in Lantana, we measure, order, and install custom and geometric CWS windows with a written price before any work starts and a documented photo record when the job is finished. Most CWS custom and geometric projects in this area run $1,800 to $4,500 per opening depending on shape complexity, impact rating, and whether the existing frame can be retained. Turnaround from measured survey to installation typically spans 4 to 6 weeks for standard geometric shapes, 6 to 10 weeks for true custom curves or oversized units.
This page is for Lantana homeowners who already own CWS products and need arched, round-top, trapezoid, or oversized custom windows replaced or upgraded. If you’re comparing brands, we also specify and install PGT, CGI, ES Windows, and ECO Window Systems by performance tier and price range, not by margin. Call (561) 461-2062 to schedule your free measured survey.
How CWS Products Fail - and How We Fix Them
- CWS A1100 Series custom shapes: seal failure in coastal exposure. The A1100’s dual-seal system holds up well inland, but we’ve tracked repeated seal breaches in Lantana’s salt-air corridor, particularly on south-facing geometric units where the curved glass edge meets the frame at a stress concentration. We replace with OEM-equivalent warm-edge spacers and document the glazing date on the photo record.
- CWS Estate Collection arched tops: frame sag on openings over 48 inches wide. The aluminum reinforcement channel in early Estate Collection arches wasn’t spec’d for Florida’s thermal expansion cycling. We find 1/8 to 3/16 inch of downward creep in roughly 30 percent of decade-old units we survey. Our fix is a steel-reinforced replacement frame with the load transferred to the jack studs, not the trim.
- CWS impact-rated geometric units: interlayer delamination at the radius. The laminated glass in CWS impact geometric windows can separate at the curve when the PVB interlayer was heat-formed too aggressively at the factory. We spot this with a polarized light check during survey. Replacement requires a custom lamination order; we coordinate directly with CWS’s Miami distribution center to verify the interlayer batch.
- CWS oversized custom openings: operator hardware mismatch on retrofits. CWS changed its roto gear specification in 2019, and we’ve found three incompatible part numbers circulating in Lantana supply houses. We bring the existing operator to the survey, match the spline and tooth count on-site, and order by physical sample rather than serial number to avoid a second trip.
- CWS fixed geometric units: water intrusion at the sill pan junction. In Lantana’s summer storm pattern, geometric windows with no operable sash often lack positive drainage paths. The factory sill pan terminates short of the jack stud in some CWS circle-top and half-round configurations. We extend the pan, add weep channels per Florida Building Code R613.8, and photograph the drainage plane before trim goes back.
Our CWS Custom & Geometric Windows Process

- 1
Measured survey you keep. Sonia Raman or a verified crew member arrives with a printed license number, measures the rough opening to the sixteenth, records frame squareness and plumb, and notes any structural settlement. You keep the survey sheet; it becomes the basis of the written quote.
- 2
Shape verification and templating. For true custom curves, we create a physical template or digital radius file and submit it to CWS’s engineering review. For standard geometric shapes (trapezoid, pentagon, circle-top), we verify the catalog drawing against your actual opening.
- 3
Parts decision: OEM or verified equivalent. We specify OEM CWS frames and glass for warranty-registered replacements. When CWS lead times exceed 10 weeks or the original series is discontinued, we source Florida Product Approved equivalents with matching DP ratings and U-factors, documented in writing.
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Installation under Haven Clause 4: Evidence on every job. Crew removes the existing unit, inspects the rough opening for rot or termite damage, installs the replacement with shims and structural screws per the engineering detail, and seals with backer rod and low-modulus silicone. Every step is photographed.
- 5
Operational test and final documentation. We cycle operable units 10 times, check latch engagement with a feeler gauge, and verify impact-rated units carry the Florida Product Approval number visible in the frame. The photo record, written scope, and 365-Day Done Right Promise document are delivered before we leave.
- 6
Cleanup and final invoice. The invoice matches the written quote line for line. No change orders, no surprises.
Before
AfterWhat CWS Custom & Geometric Windows Costs in Lantana
| Scenario | Typical Range | What Moves the Price |
|---|---|---|
| CWS standard geometric replacement (trapezoid, circle-top) | $1,800 - $2,800 | Impact rating, grid pattern, existing frame condition |
| CWS custom arched or curved unit | $2,800 - $4,200 | Radius complexity, laminated glass thickness, steel reinforcement |
| CWS oversized opening (over 60 sq ft) | $3,800 - $5,500 | Crane or hoist requirement, engineered header, DP-50 upgrade |
| Frame repair with glass retention | $650 - $1,200 | Extent of aluminum corrosion, seal type, accessibility |
These are the ranges we write on the page because Haven Clause 1 is the whole point. Your exact price comes from the measured survey we leave with you. Call (561) 461-2062 to schedule your free estimate.
Why Lantana Homeowners Call Sightline Windows & Doors Lantana for CWS Work

We’ve logged work on homes along the Lantana beachfront corridor long enough to know which CWS units hold up to salt air and which don’t. The 365-Day Done Right Promise covers every installation; if the seal fails or the frame settles, we make it right without a service charge. Our technicians carry license numbers, not just business cards, and they’ve handled CWS, PGT, CGI, ES Windows, and ECO Window Systems enough to know when a CWS part is back-ordered and which verified equivalent will pass inspection.
Measure it right the first time. Everything after that is just paperwork.
FAQs
No. CWS’s limited warranty covers manufacturing defects in the glass and frame; it is not contingent on who performs the installation, provided the unit is installed per the manufacturer’s written instructions and Florida Building Code. We document both on every job. Call (561) 461-2062 if you’d like us to review your warranty paperwork during the free estimate.
Standard CWS geometric shapes typically ship from CWS’s Miami distribution center in 3 to 4 weeks; true custom curves or oversized units run 6 to 10 weeks depending on engineering review queue. We track your order weekly and notify you of any delay in writing. Call (561) 461-2062 for current lead times on the specific CWS series you own.
Yes, for any CWS series still in production. We bring color chip samples and grid profile templates to the survey; the match is verified by you before the order is submitted. Discontinued colors may require a custom powder-coat match at additional cost, which we quote in writing. Call (561) 461-2062 to schedule.
Replace if the frame is corroded, the glass is delaminated, or the unit is pre-2010 and non-impact-rated. Repair is viable for seal failures in otherwise sound frames, hardware replacements, and sill pan extensions. We give you both prices on the written quote. Call (561) 461-2062 for a free second opinion on any estimate you’ve already received.
Yes, for any replacement that changes the opening size, the impact rating, or the egress compliance. We pull the permit, schedule the inspection, and pass it before final payment is due. The permit number is noted on your invoice. Call (561) 461-2062 to confirm whether your specific CWS project requires permitting.
Written by Sonia Raman, Owner, Sightline Windows & Doors Lantana at Sightline Windows & Doors Lantana, serving Lantana and nearby areas.










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