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 Miami Gardens: What to Know First
We provide independent CWS service for custom and geometric windows in Miami Gardens, with most measured surveys scheduled within two business days and installs completed in the agreed window of days. A typical CWS custom geometric replacement runs $1,800 to $4,200 depending on glazing specification and whether the rough opening needs reframing. The written price we leave with you after survey is the price on the invoice - Haven Clause 1, no exceptions.
This page is for Miami Gardens homeowners who already own CWS windows and need arched, curved, trapezoid, or oversized custom shapes repaired or replaced, or who are comparing CWS against other lines for a new installation. If the spec isn’t on the page, it isn’t part of the job. Call (754) 354-6649 to schedule your free measured survey.
How CWS Products Fail - and How We Fix Them
- CWS Aria series custom shapes: seal failure in coastal exposure. The Aria’s dual-pane low-E package uses a stainless spacer that corrodes faster than composite alternatives when salt air penetrates the glazing pocket. In Miami Gardens, we see this most often on east-facing arched units within six years of install. We replace with a warm-edge spacer and argon fill, documented with pre- and post-repair U-factor readings.
- CWS Estate geometric windows: frame sag in wide trapezoids. The Estate line’s aluminum extrusion is 0.060 inch wall thickness, adequate for standard rectangles but prone to deflection in spans over 48 inches without a mullion. We find this in Miami Gardens ranch-style additions from the 2015-2020 build wave. Our fix is a reinforced subframe or, where the opening allows, a split-lite configuration that preserves the sightline while adding structural support.
- CWS impact-rated custom curves: delamination at the lamination edge. CWS impact curves use a polyvinyl butyral interlayer that can separate at the cut edge if the radius is too tight for the glass thickness specified. We’ve traced this to three jobs in Miami Gardens where the original installer used 3/16-inch monolithic where 1/4-inch laminated was required by the shop drawing. We pull the shop drawing, verify the radius-to-thickness ratio, and replace with OEM-specified glazing only.
- CWS fixed geometric units: weep blockage and sill rot. Custom shapes often ship with weep holes drilled at the factory, but the angle can pool debris in Miami Gardens’ heavy pollen seasons. Water backs into the sill track and rots the subsill. We clear the weeps, install baffled covers, and replace any damaged pressure-treated subsill - with photos of the cavity condition before we close it up.
- CWS oversized custom openings: operator failure in casement geometries. The roto operator on CWS casement shapes over 36 inches wide carries more load than the standard hardware rating. Gears strip, arms bend, and the sash drifts. We spec a heavy-duty operator with a higher moment rating, always matching the finish to the existing CWS hardware so the repair doesn’t announce itself from the curb.
Our CWS Custom & Geometric Windows Process

- 1
Measured survey you keep. Sonia Raman or a verified crew member arrives uniformed with license number visible, records every sightline dimension with a digital measuring system, and notes rough-opening squareness to 1/16 inch. You receive this document before we leave.
- 2
Diagnostic with photo evidence. We photograph frame condition, glazing edge, hardware wear, and any subsill damage. These images travel with your written quote.
- 3
Parts decision: OEM or qualified equivalent. For CWS custom shapes, we source OEM glass and extrusion when the series is current. For discontinued CWS lines, we use qualified aftermarket with matched thermal and structural performance, documented in the quote. We never substitute without writing it down.
- 4
Install with live verification. The crew checks plumb, level, and square at rough opening, shimmed to the measured survey. Impact-rated units receive a post-installation operability test and seal inspection.
- 5
Photo record and 365-Day Done Right Promise. We document the completed installation, leave you the photo set, and stamp the job under Haven Clause 5: No surprises. If it’s not done right, we make it right.
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AfterWhat CWS Custom & Geometric Windows Costs in Miami Gardens
| Scenario | Typical Range |
|---|---|
| CWS standard geometric shape replacement (trapezoid, octagon, fixed) | $1,800 - $2,800 |
| CWS arched or curved top, single unit | $2,400 - $3,600 |
| CWS oversized custom opening, reframed | $3,200 - $4,200+ |
| CWS impact-rated custom curve, laminated glazing | $2,800 - $4,000 |
| Hardware upgrade: heavy-duty operator or multipoint | $340 - $580 |
What moves the price: glazing specification (impact vs. non-impact), whether the rough opening has settled out of square, and whether the original CWS unit was a proprietary shape requiring custom extrusion lead time. We do not quote until we measure. Call (754) 354-6649 for your free measured survey - the written price follows, and it does not change.
Why Miami Gardens Homeowners Call Sightline Windows & Doors Miami Gardens for CWS Work

We are independently owned and operated under the Haven Standard, not a franchise, and we service eight manufacturer lines - PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux - which means we specify what the opening requires rather than what a single brand’s catalog limits us to. For CWS owners in Miami Gardens, that matters when a series is discontinued or when a custom shape can be matched from another line with identical performance at a different price tier.
Our technicians are background-checked, uniformed, and identified by license number before arrival - Haven Clause 3, Verified Crews. Calls are answered by a live person, 24/7. Every job carries the 365-Day Done Right Promise and leaves a documented photo record. We have completed more than 18,000 installations since 2012, every one with a written price before work started.
FAQs
No - CWS warranties cover manufacturing defects, not independent service, provided the repair uses OEM-specified parts and methods. As an independent CWS service provider, we document every part number and installation detail so your warranty status remains verifiable. If your CWS unit is still under original warranty, we flag potential claims before work begins. Call (754) 354-6649 and we will review your serial number against CWS coverage terms at no charge.
Current CWS custom extrusion and glazing typically ships in 4 to 6 weeks from order confirmation. Discontinued CWS series may require 6 to 10 weeks for qualified aftermarket fabrication. We do not begin demolition until parts are in our warehouse - Haven Clause 2, Arrive on schedule means arrive with materials. Your written quote includes the realistic lead time, not a best-case estimate.
Replace when the frame is out of square beyond 1/4 inch, when the glazing is delaminated in an impact-rated unit, or when CWS has discontinued the series and parts are no longer stocked. Repair when the failure is isolated to hardware, seal, or subsill and the frame geometry is intact. We make this recommendation in writing with photo evidence, not as a sales pitch. Call (754) 354-6649 for a free second opinion on any other contractor’s written estimate.
Yes - we have matched CWS profiles using qualified aftermarket extrusion from our multi-brand inventory, including PGT and CGI lines with compatible thermal breaks and sightlines. The match is verified by dimension, U-factor, and frame depth before we quote. We do not proceed until you have seen the comparison in writing.
You keep the measured survey, the written scope, the final invoice matching the quote, the photo record of installation, and the 365-Day Done Right Promise documentation. These are standard on every Sightline job, not upgrades. If the spec isn’t on the page, it isn’t part of the job.
Ready to price your CWS custom or geometric window project? Call (754) 354-6649 to schedule your free measured survey. A live person will answer, and the written price we leave with you is the price you will pay.
Written by Sonia Raman, Owner, Sightline Windows & Doors Miami Gardens at Sightline Windows & Doors Miami Gardens, serving Miami Gardens and nearby areas.










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