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 Beach: What to Know First
We provide independent CWS custom and geometric window service across Miami Beach, from arched transoms in Normandy Isles to oversized trapezoid openings in Sunset Islands. Most CWS maintenance and glass replacement jobs take one visit, and we quote honestly before any work begins: a standard CWS glass pack swap runs $350-$750, while full geometric sash work can reach $1,500-$3,200 depending on curvature and size. This page is for homeowners who own CWS windows and need straight answers before they call.
If you’ve got a CWS window that’s fogged, racked, or letting daylight through the frame, call (386) 406-9359. We’ll tell you what we’d do, what it costs, and whether it’s worth fixing or replacing.
How CWS Products Fail - and How We Fix Them
CWS windows are built for coastal Florida conditions, but Miami Beach’s salt air, high UV load, and storm-driven water find the weak points in any window line over time. Here’s what we see on CWS custom and geometric work, and how we address it.
- CWS Series 900 arched transoms losing seal at the apex. The curved glass at the top of a CWS Series 900 transom takes the most thermal stress in a Miami Beach living room, especially on east-facing elevations. The seal fails there first because the radius puts uneven pressure on the spacer. We replace the insulated glass unit with fresh OEM-spec curved units and re-bed the stop with a marine-grade sealant that holds up to salt air better than what was originally applied.
- CWS Series 6000 trapezoid windows binding in the frame after a hard storm. These large fixed-shape units rely on a narrow aluminum flange to stay true. When wind loads hit them square, the frame can shift a few millimeters, and the sash starts binding on the latch side. We square the opening, shim accordingly, and reset the anchor clips so the window operates clean without forcing the lock.
- CWS single-hung mullion joints showing corrosion at the corners. On older CWS installations where two or three geometric units share a mullion, the joint compound CWS used in early production runs breaks down under Miami Beach humidity. You’ll see powdery white oxidation at the joint. We disassemble, clean the mating surfaces, apply a modern polymer sealant, and re-caulk the exterior reveal. It’s a repair that prevents water from working into the rough opening.
- CWS Series 300 casement hardware stripping on radius units. Geometric casements with curved frames put more torque on the crank mechanism than a standard rectangular unit. We see stripped operator gears and bent arms on CWS Series 300 radius casements that have been forced. We replace the hardware with OEM-spec operators and adjust the arm geometry so the window closes without needing a shoulder against the crank.
- CWS picture-frame windows with condensation between the lites. This is the classic “fogged seal” failure and it isn’t unique to CWS, but Miami Beach’s daily temperature swing accelerates it. The desiccant inside the spacer saturates, and moisture fogs the inside of the glass. We replace the insulated glass unit, register the warranty paperwork if the unit still falls within coverage, and set the new pack with a neutral-cure silicone that won’t outgas and re-fog the glass.
Our CWS Custom & Geometric Windows Process
We’ve been setting and servicing windows across Miami Beach for over twenty years, and the process on a CWS job is the same discipline Dale Kessler learned from his father: measure twice, quote honestly, and don’t leave until the pane is true.
- 1
Call and talk to a person. You call (386) 406-9359. A live person answers. We listen to what the window’s doing, ask about the shape and the age, and get you scheduled.
- 2
On-site measurement and diagnosis. Our technician measures the opening twice, checks the condition of the frame, the seal, the hardware, and the anchor points before any parts are ordered or any price is quoted. Geometric windows require exact field measurements, not spec-sheet assumptions.
- 3
Parts decision, made plain. Where CWS OEM parts are available and the warranty still applies, we use them. Where an OEM part is unavailable or discontinued, we source quality aftermarket equivalents that match the original dimensions and finish, and we tell you which is which before we order.
- 4
The work. We remove the failed unit or hardware, prep the opening, set the new glass or parts, and re-seal with materials suited to Miami Beach’s salt and UV exposure. Most jobs finish in one visit.
- 5
Test and true. We operate the window through its full range, check the reveal, verify the drainage, and confirm the locks and hardware engage without strain. If the pane is not true, the job is not done.
- 6
Paperwork before we leave. If a manufacturer warranty applies, we register both warranty layers in writing before the truck leaves the driveway. You get the duration, the coverage, and our number if anything changes.
What CWS Custom & Geometric Windows Costs in Miami Beach
Here are the numbers we quote most often on CWS work in Miami Beach. These are honest ranges, not bait pricing.
| Service | Typical Cost Range |
|---|---|
| CWS insulated glass replacement (single rectangular unit) | $350-$750 |
| CWS curved or radius glass pack (arched transom, eyebrow window) | $600-$1,400 |
| CWS geometric sash rebuild (trapezoid, pentagon, oversized fixed) | $1,200-$3,200 |
| CWS hardware replacement (casement operator, lock, hinge) | $180-$450 |
| CWS full-frame reset and re-level (binding or racked window) | $500-$1,200 |
| Full custom CWS replacement window (large geometric, impact-rated) | $1,800-$4,500 |
What moves the price: glass thickness and impact rating, radius tightness on curved units, second-story access, and whether the rough opening needs correction before the new unit goes in. We give you a written line-item quote before any work starts, and the price on that quote is the price you pay. Call (386) 406-9359 for an exact number on your CWS window.
Why Miami Beach Homeowners Call TruePane Windows & Doors for CWS Work
We’ve been serving Miami Beach and nearby neighborhoods since 2008 through a craft tradition that started with Dale Kessler’s father and continues under Dale’s direction today. We’re an independent CWS service provider, not a franchise operation, and we treat every CWS window as if it were going in our own mother’s house.
Our techs are background-checked, uniformed, and trained to work on CWS geometry the way it actually behaves in coastal conditions. If a CWS unit is beyond practical repair, we also service PGT, CGI, ES Windows, and ECO Window Systems, so you get a straight comparison across brands before you commit. Every job carries the Done Right Promise and The Keystone Standard: both manufacturer warranty layers registered in writing, durations stated, before the truck leaves. We’ll be there when we say, we’ll quote a square deal, and we’ll stand behind the work. A live person answers our phone 24/7.
FAQs
Yes. We field-measure every geometric opening and order glass cut to the actual curve and angle, not to the original spec. CWS factory tolerances shift over a decade or two in Miami Beach, so we measure the opening as it sits today. Call (386) 406-9359 and we’ll confirm we can match your shape before you spend a dollar.
No. As an independent CWS service provider, we use OEM-spec parts where the warranty still applies and we register both warranty layers in writing before we leave. If a unit is under coverage, we make sure the claim is documented properly so your coverage stays intact.
Most single-unit CWS glass replacements and hardware repairs finish in one visit. Curved glass units and custom geometric sash rebuilds take two to three weeks for manufacturing plus one installation visit. We’ll give you a written timeline before any work begins.
It depends on the frame condition. If the frame is square, the anchor points are solid, and the failure is glass or hardware, repair is usually the better money. If the frame is corroded through, racked, or the rough opening has shifted, replacement is the honest answer. We’ll tell you which one applies to your window and quote both when it makes sense.
Yes. We handle CWS impact-rated units, including replacement of laminated glass packs and re-sealing of the pressure plates. Miami Beach code requires impact-rated glass in most installations, and we use materials that meet current standards, not just whatever fits the hole.
Call (386) 406-9359 to schedule a free estimate on your CWS custom or geometric window. You’ll get a straight answer, a written quote, and a plan that leaves your window set true and sealed tight.
Written by Dale Kessler, Owner, TruePane Windows & Doors at TruePane Windows & Doors, serving Miami Beach 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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