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CWS Windows & Doors: The Miami Owner’s Guide
We stock and install CWS-compatible window and door components across Miami, from replacement glazing beads and weatherstripping to full insulated glass units and impact-rated sash assemblies. Most CWS part replacements run $295 – $825 installed for common hardware and seal work, while a full impact window replacement typically falls between $9,440 and $29,500 depending on size and series. If you’re hearing a rattle in the track, feeling air move around the frame, or finding moisture between the panes, that’s how most owners first discover a CWS component has given out in South Florida’s humidity.
Which CWS Models This Applies To
CWS, or Custom Window Systems, has produced several window and door lines over the years, and the parts are not all interchangeable. The most common units we see in Miami homes are CWS hinged and horizontal roller windows, along with their sliding and French door systems. The label is your fastest path to the right part: look for a small silver or white sticker along the frame edge or the top rail of the sash. It should carry the CWS logo and a series code, usually a letter or number like 5000, 6000, or 7000 series. If the label is gone (sun and salt air do a number on stickers), we measure the glass thickness, frame channel width, and the roller or hinge type to match the part. For CWS specifically, we lean OEM on anything that touches the water seal. Aftermarket rollers and locks can work, but we’ve seen too many aftermarket glazing beads in Miami that can’t handle the thermal movement from August sun followed by a cold front. When a part keeps water out, we want the one that was engineered for the extrusion.
Styles & brands we work with
Signs Your CWS Windows & Doors Is Failing
- Condensation or haze between the glass panes: The insulated glass unit’s seal has failed and the argon or krypton gas has escaped. The window still holds, but its insulation and clarity are gone, and in Miami’s humidity the fog rarely clears on its own.
- Rollers grinding or the sash dragging: CWS horizontal rollers collect grit from the limestone dust that’s common around Miami construction. Once the nylon wheel wears flat, the sash rides on the housing.
- Draft or air movement around a closed sash: The weatherstripping has compressed or pulled loose, usually at the meeting rail. This is the first thing to go on windows that face direct afternoon sun.
- Lock or latch not engaging smoothly: CWS locks are die-cast zinc and will develop slop over time, especially on doors that get used fifty times a day. Forcing a worn latch just strips the strike plate and makes the repair more expensive.
- Water staining under the frame or pooling on the sill: The weep holes are clogged or the glazing bead has let water behind the sash. In a Miami storm season, this moves from cosmetic to structural faster than most people expect.
See the difference
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AfterReplacement Cost & What’s Included
For CWS replacement parts, our Miami pricing falls into three buckets. Simple hardware swaps (a lock, a set of rollers, a glazing bead, weatherseal) run $295 – $825 installed. A replacement insulated glass unit, cut to match your CWS sash and installed, runs $710 – $2,950 depending on pane size, low-E coating, and whether it’s impact-rated laminated glass. A full CWS window replacement, frame and all, falls between $9,440 and $29,500 depending on the opening size, series line, and whether the install requires Miami-Dade County product approval for impact resistance. Every quote we give is written, broken into parts and labor, and stays the number you see at the end. The labor includes proper shimming, insulated perimeter seal, interior trim reinstall, and hauling the old unit away. The work is covered by a written guarantee, and if anything fails, our technician comes back at no charge because the 365-Day Done Right Promise means what it says in plain English.
DIY or Call Us?
Danger first: a full CWS window or door panel is heavy and, on upper floors, awkward enough to hurt someone who doesn’t do this every week. Removing an impact-rated sash requires managing laminated glass under its own weight, and if it drops, that’s a hospital visit, not a scratch. What homeowners can safely do is simple: check weep holes with a bent paper clip for debris, apply a dry silicone lube to locks and roller tracks, and note which direction the sash sticks so you can describe it accurately when you call. What we’d rather you not do is pull the sash out, pry off the glazing bead, or try to force a new roller in. We’ve fixed enough DIY attempts in Coconut Grove to know it’s usually cheaper to just do it right the first time. If the problem is more than a sticky track, call us at (850) 988-7559. Give you a number first, then pick up the tools.
FAQs
In Miami’s salt air, UV exposure, and storm cycles, CWS frames and sashes typically hold up 20 – 30 years with maintenance, but the glazing beads, weatherstripping, and rollers usually need replacement every 8 – 12 years, faster if the unit faces direct east or west sun. Call (850) 988-7559 for a free inspection and we’ll tell you exactly what’s left in each unit before you spend a dollar.
Yes, most component failures (seals, rollers, locks, hinges, glazing beads) can be repaired without replacing the entire frame, and we default to that whenever the extrusion is still square. If the frame itself is bent, scored, or climbing with corrosion, replacement makes more sense than chasing a patch. We’ll walk through the repair-versus-replace math with you in plain terms before any work starts.
Most hardware and weatherstripping repairs are done in one to two hours once the replacement part is in hand. Insulated glass unit replacements typically take 10 – 14 days because the glass is fabricated to your CWS sash’s exact dimensions and thickness before we come back to install it. Full window replacements run one day for a single unit, longer for multi-unit jobs, and we’ll give you a written schedule at quote time.
We stock common CWS rollers, locks, weatherstripping, and glazing beads on the truck so the most frequent Miami failures get finished the same visit. Obsolete series parts and custom insulated glass units are ordered direct from suppliers we’ve used for years, which is why we’re careful to identify the exact series before you pay for anything.
If your CWS window or door is fogged, dragging, or leaking, don’t let a small part turn into a stucco repair. Call Penhallow Remodeling Miami at (850) 988-7559 to schedule a free estimate. We’ll identify the series, write the number down, and stand behind the work when it’s done.
Written by Trevor Nash, Owner, Penhallow Remodeling Miami at Penhallow Remodeling Miami, serving Miami and nearby areas.
