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CWS Custom & Geometric Windows in Miami: What to Know First
TruePane Windows & Doors provides independent CWS custom and geometric window service, repair, and full replacement throughout Miami, including arched, radius, oval, trapezoid, and oversized openings. Most CWS custom window repairs run $280-$640 per opening when the frame and glass are intact, and full replacements for geometric shapes typically start around $1,200 and climb with size, impact rating, and curvature. We are not affiliated with CWS and operate as an independent CWS service provider, which means we answer to you, not a factory rep.

This page is for CWS owners in Miami who have a shaped window that leaks, fogs, sticks, or simply needs to match the rest of the house. If that is you, call (561) 489-4036 and tell us what you are seeing. A live person answers, 24/7.
How CWS Products Fail - and How We Fix Them
- Radius and arch units losing their seal at the crown. On CWS arched windows, the curved top section carries more stress at the bend than a rectangular unit ever sees. Miami’s humidity and salt air work on that seal until condensation shows up inside the glass. We see this most often on CWS radius units over ten years old. The fix is a new insulated glass unit cut to the exact radius, set into the existing frame when the frame is sound, and reglazed with a marine-grade sealant rated for coastal exposure.
- Trapezoid and pentagon frames twisting out of square. Big geometric glass puts real weight on the frame corners. If the original installer shimmed the rough opening wrong, the frame flexes and the sash binds at one corner. CWS frames are aluminum and will hold their shape when set properly, but a twisted opening transfers pressure into the glass itself. We pull the unit, correct the shimming, and reset it true. That is the founding rule: if the pane is not true, the job is not done.
- Impact-rated CWS units with failed laminated interlayers. CWS manufactures Miami-Dade approved impact windows, and the laminated glass inside those units can develop a milky haze between the lamination layers after years of UV and heat cycling. It looks like a seal failure but it is not. You cannot fix a delaminating laminate, and CWS will not warranty it forever either. We order a replacement IGU with matching laminated glass and confirm the new unit carries its own Miami-Dade NOA before it goes in.
- CWS single-hungs in geometric rough openings losing their balance. When a builder forces a standard single-hung into a rough opening that was framed for a shaped unit, the balance system wears unevenly and the sash drops or will not stay up. TruePane replaces the balance hardware and, on repeat failures, reframes the opening properly before ordering glass so the next window is a square deal instead of another patch job.
- Oversized CWS sliders and picture windows cracking at the corner welds. Miami homes with floor-to-ceiling CWS picture windows or wide sliders sometimes develop hairline cracks at the frame corners. This is thermal expansion working against a weld that was never stress-relieved. The crack lets water in during summer storms. We either re-weld and reinforce the corner or replace the frame section entirely, depending on how far the crack has run.
Our CWS Custom & Geometric Windows Process
- 1
You call and describe the problem. A live person answers. We ask what the window looks like, when the problem started, and whether water has ever entered the house because of it.
- 2
We schedule a site visit and measure first. Our techs measure every opening twice before we quote anything. For a radius or arch, we template the curve so the replacement glass matches the original, not an approximation.
- 3
You get a written quote with both options on paper. If two paths make sense, say an OEM CWS replacement versus a comparable aftermarket IGU, we quote them side by side and tell you the warranty difference in plain terms.
- 4
We order only after you approve the line items. Custom and geometric glass cannot be returned, so we do not order on assumptions. Lead times are given straight, even when they are longer than anyone wants to hear.
- 5
The install happens in one visit for most repairs. For a glass-only replacement, most CWS jobs finish the same day. Full frame replacements take longer, and we tell you the schedule before we start, not after.
- 6
We test, clean, and register the warranty before leaving. Both warranty layers are registered in writing, durations stated, before the truck leaves your driveway. That is The Keystone Standard, and it applies to every CWS job we do.
What CWS Custom & Geometric Windows Costs in Miami
Expect to pay $280-$640 for a glass-only repair on a standard CWS geometric window, depending on size and whether the glass is impact-rated. Arched and radius units run higher because of the template work: $450-$900 is common when the frame is still good. Full replacement with a new CWS-comparable frame starts around $1,200 for a small trapezoid or pentagon and runs upward from there. Large impact-rated geometric openings, the kind you see in Miami modern homes along Brickell or Coconut Grove, land between $2,500 and $6,000 per opening installed.
What moves the price: impact rating, size, curvature, second-story access, and whether we find hidden frame damage during demolition. We quote fixed prices in writing, no surprise line items on the bill. Call (561) 489-4036 for a free estimate on your CWS custom or geometric windows.
Why Miami Homeowners Call TruePane Windows & Doors for CWS Work
We work on CWS products the way a second-generation glazier should: by understanding how the window was built, not just how to swap a part. Dale Kessler grew up in his father’s glazing shop and has put in the hours on Miami jobs where salt air and hurricane codes make sloppy flashing a costly mistake. When we quote a CWS repair, we quote manufacturer lines side by side on paper. When we install, both warranty layers get registered in writing before we leave. And every job carries the 90-Day Done Right Promise: if it is not done right, we make it right, no paperwork fights and no arguing.
Miami homeowners also call us because we are not a one-brand shop. If the right answer for your home is a PGT, CGI, ES Windows, or ECO Window Systems unit instead of a CWS repair, we will tell you that and quote it fairly. We have been serving local communities for over 42 years through Dale’s heritage of craft, and we plan to be answering the phone in Miami for thirty more.
FAQs
If your CWS window is still under the original manufacturer warranty, a glass-only replacement using an OEM CWS insulated unit is the safest path, and we document the install so you have a written record if a warranty claim ever comes up. After the warranty period ends, quality aftermarket IGUs often perform as well or better, and we quote that option plainly with its own warranty terms. Call (561) 489-4036 and we will tell you which path applies to your specific window.
Morning fog that clears by midday is usually surface condensation from Miami’s humidity meeting cool glass, not a failed seal. Persistent fog between the panes means the seal is gone and the IGU needs replacement. We can tell the difference during a site visit in about ten minutes.
We do both. Some CWS frames are worth keeping and we will tell you that. Others, especially older aluminum frames with corner cracking or substantial corrosion, cost more to patch than to replace, and we will tell you that too. Either way, the quote is in writing before any order goes out.
Glass-only replacements typically take one to two weeks once we template the opening and place the order. Full custom frames with impact ratings take longer, usually three to six weeks depending on the manufacturer. We will give you the honest lead time when we quote, not the answer we think you want.
No. We quote fixed prices with everything in writing before work begins. If we open the wall and find hidden rot or frame damage, we stop, show you what we found, and give you a written change order before proceeding. You approve every dollar before we spend it. That is a square deal, and it is how we have worked for over 42 years.
If you own a CWS custom or geometric window in Miami that is not doing its job, call (561) 489-4036. A live person answers, we will measure twice, order once, and put everything in writing.
Written by Dale Kessler, Owner, TruePane Windows & Doors at TruePane Windows & Doors, serving Miami and nearby areas.
Six Reasons Homeowners Choose TruePane Windows & Doors
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.










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