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CWS Window Installation in Royal Palm Beach: A Homeowner’s Guide

August 25, 2026 • TruePane Windows & Doors

CWS Window Installation in Royal Palm Beach: A Homeowner’s Guide

CWS Window Installation in Royal Palm Beach: A Homeowner’s Guide

Most CWS warranty claims in South Florida are denied not because the window failed, but because the installer skipped the sill flashing step. That is a 20-minute task that voids coverage on a $400-per-unit product. In Royal Palm Beach, where concrete block stucco homes meet hurricane code and nine months of humidity, correct CWS window installation is the difference between a window that performs for 20 years and one that rots the wall from the inside out. This guide walks you through what proper installation actually looks like so you can tell the difference between a crew doing it right and a crew doing it fast. If you would rather not sort it out yourself, call (386) 251-6745 and we will walk it with you.

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Why CWS Windows Fail in Royal Palm Beach (And It’s Rarely the Window)

CWS builds a solid impact window. The extrusion is clean, the laminated glass holds up, and the NOA paperwork is in order for Miami-Dade and Palm Beach County. But a window is only as good as the hole it sits in. Royal Palm Beach homes are overwhelmingly CBS construction, meaning concrete block walls with a stucco skin. That changes everything about rough opening prep compared to the wood-frame houses you find further north in places like Gainesville or Jacksonville.

In a wood-frame wall, a rough opening gets shimmed, flashed, and trimmed out with relative forgiveness. In a CBS wall, the rough opening is a cut through block and stucco. If the opening is overcut by even half an inch and the installer packs the gap with foam alone, water finds a path. We have pulled CWS units out of homes in the Royal Palm Beach village area where the stucco behind the flange was never sealed. Two wet seasons later, the block was holding moisture, the anchors were corroding, and the homeowner was looking at a $4,000 masonry repair on top of a window replacement. The window was fine. The installation was not.

What Correct CWS Installation Looks Like, Stage by Stage

There are four stages where a CWS installation in Royal Palm Beach either gets done right or gets done fast. Each one has something specific you can inspect with your own eyes, no trade school required.

1. Rough Opening Prep

Before any window leaves the truck, the opening itself has to be addressed. On a CBS home in Royal Palm Beach, correct prep means the cut edges get cleaned of loose stucco and the sill gets checked for level. A slab-built Royal Palm Beach home settles over decades, and we regularly find sills that are out of level by a quarter inch or more. A CWS unit installed on an unlevel sill binds in the track, wears the rollers, and eventually throws the sash out of square. The fix is shimming and leveling at the rough opening stage, not after the window is screwed in.

What you should check: run a level across the sill yourself if you are watching the work. Ask the crew to show you the level reading. A crew that will not show you the level is a crew you should not sign off with.

2. Sill Pan Flashing

Here is the step that gets skipped more than any other in South Florida, and it is the one that voids the most CWS warranties. Sill pan flashing is a sloped, water-shedding barrier that sits under the window at the bottom of the rough opening. In Royal Palm Beach’s wet season, which runs from May through October and dumps more than 60 inches of rain on Palm Beach County in a bad year, water that gets behind the stucco weeps down the wall cavity. Without a sill pan, that water pools at the bottom of the window and soaks into the block, the trim, and eventually the interior drywall.

What skipped flashing looks like two years later: staining at the bottom corners of the window, peeling paint or lifting baseboard below the sill, a musty smell in the room that no amount of cleaning fixes. We see it most often in the older sections of Royal Palm Beach where homes were built in the 1980s and early 1990s, before flashing practices tightened up. The CWS product did not fail. The install did.

3. Anchoring and Shimming

CWS impact windows are heavy. A 48-by-60 unit can weigh over 80 pounds, and when it is carrying Miami-Dade wind-load requirements, the anchoring pattern matters. On a CBS wall, anchors go into the concrete, not into the stucco. Stucco is a cosmetic shell. Screws set into stucco alone will pull right out under hurricane-pressure cycling. A proper CWS install in Royal Palm Beach uses anchors long enough to bite into solid block, spaced per the manufacturer’s NOA drawings, and shimmed so the frame stays square while the fasteners go in.

What you should check: ask whether the anchors are listed in the NOA. CWS publishes specific anchoring schedules for CBS construction, and a crew that cannot show you the NOA document is guessing. Guessing and hurricane codes do not mix, and guessing is how homeowners end up with windows that rattle in a thunderstorm long before a named storm ever shows up.

4. Weep Screed Integration and Final Sealing

Royal Palm Beach stucco walls have a weep screed at the base, a metal flashing detail that lets moisture escape from behind the stucco. If a CWS installer slops sealant over the weep screed or seals the bottom of the window tight to the stucco, trapped water has no exit. The window becomes a dam, and the wall becomes a sponge. Correct installation keeps the weep screed clear below the window and uses sealant only where the manufacturer specifies, typically at the head and sides, never across the bottom in a way that blocks drainage.

This is the point where a homeowner should walk the exterior perimeter before the crew packs up. Look for sealant squeezed into the weep screed. Look for gaps at the corners. Look for sealant that has been smeared rather than tooled. Smearing hides gaps. Tooling creates a proper seal.

Miami-Dade NOA Requirements and Royal Palm Beach Permits

CWS impact windows carry a Miami-Dade Notice of Acceptance number. That NOA is not a generic piece of paper. It is specific to the product line, the glass package, and the installation method. When a Royal Palm Beach homeowner pulls a permit for window replacement, the permit must list the specific NOA that matches the specific CWS unit being installed. If the permit lists one NOA and the installer shows up with a different product, the inspection fails, the job stops, and the homeowner is stuck in permit limbo until it gets sorted.

Royal Palm Beach has its own permitting process, and it is stricter than some neighboring municipalities. The village wants to see product approvals, wind-load calculations, and a clean final inspection before the permit closes. For a CWS install, that means the contractor should be pulling the permit themselves, with the right NOA listed from day one. We pull permits on every CWS job we do in Royal Palm Beach, and we list the NOA on the contract before the first cut is made. If a contractor tells you the permit is optional or that the NOA does not matter, that is your cue to call someone else.

The Two-Layer Warranty Registration: What Royal Palm Beach Homeowners Miss

Here is a detail most CWS buyers never hear about until it is too late. CWS installations carry two warranty layers. The first is the manufacturer layer, which covers the window product itself: glass seal failure, frame defects, hardware. The second is the dealer or installer layer, which covers the labor and the installation workmanship. Both layers must be registered in writing for full coverage to apply.

What happens when only one is filed? The manufacturer will cover a defective glass unit, but they will not cover the labor to remove and reinstall it. The installer, who did the work, will not cover the product. The homeowner ends up paying for labor on a product failure, which in Royal Palm Beach with CWS impact glass can run hundreds of dollars in labor alone. We register both layers before the truck leaves the driveway, and we hand the homeowner a written copy of each registration. That is The Keystone Standard, and it is the same on a one-window repair as it is on a 20-window house. No exceptions.

What Homeowners in Royal Palm Beach Should Inspect Before Signing Off

You do not need to be a glazier to catch a bad CWS install. You need to know what to look at. Here is the checklist we give homeowners in Royal Palm Beach who want to verify the work:

  • Rough opening level: Check the sill with a level before the window goes in. Out of level means binding later.
  • Sill pan flashing present: Ask to see it before the window drops in. Once the window is set, the flashing is hidden.
  • Anchors in concrete, not stucco: Ask what length anchors are used and whether they match the NOA schedule.
  • Weep screed clear: Check the bottom of the exterior wall below the window. Sealant should not cover the screed.
  • Both warranty layers registered: Ask for written confirmation of the manufacturer layer and the installer layer before the crew leaves.
  • Final inspection scheduled: Royal Palm Beach permits require a final inspection. Do not skip it.

These are the checks that separate a window installation in Royal Palm Beach done for the long haul from one done for the invoice. None of them require a special tool, and all of them are visible if you know where to look.

When to Call a Pro

If you are reading this while standing in front of a fogged CWS window or one that leaks at the corners after a Royal Palm Beach downpour, do not wait. Water intrusion on a CBS wall does not self-correct. It gets worse each wet season, and by the time the drywall shows it, the block behind it has been wet for a year. We have pulled windows out of homes near Royal Palm Beach Boulevard where the homeowner thought they had a minor seal issue and the rough opening told a different story. The sooner you look, the less it costs to fix.

Related services in Royal Palm Beach: window replacement and door installation for CWS and other impact-rated lines. We handle CWS, and we also install and service TruePane Windows & Doors home-approved product lines from Simonton, PGT, and Jeld-Wen for homeowners who want side-by-side comparisons before they commit.

Why CWS Installation Is a Local Game

Royal Palm Beach is not Miami, and it is not West Palm Beach. The soil is sandy. The water table is high. The homes are CBS, the lots are flat, and the storms come from the southwest in the summer. These are local conditions that show up in how a CWS window performs year after year. An installer who has spent twenty years putting windows into wood-frame homes in the Carolinas does not know what to do with a Royal Palm Beach block wall until he has made a few expensive mistakes on someone else’s house. We have been doing this work in this area since 2008, under Dale Kessler’s rule that if the pane is not true, the job is not done. That is not a slogan. It is the standard we measure every install against, CWS included.

Impact windows are a big investment. In Royal Palm Beach, with hurricane season running June through November and insurance discounts tied to proper NOA paperwork, the installation matters as much as the product. CWS builds a window worth installing. The question is whether the crew installing it is worth the job.

The Bottom Line

CWS window installation in Royal Palm Beach succeeds or fails on four things: rough opening prep, sill pan flashing, correct anchoring per the Miami-Dade NOA, and full two-layer warranty registration. Skip any one of them and you have bought a good window badly installed, which is just a future repair with extra steps. Check the level before the window goes in. Ask to see the sill pan. Verify the NOA on the permit. Get both warranty layers in writing. Those are the checks that matter.

If you are in Royal Palm Beach and need help, TruePane Windows & Doors offers free estimates. Call (386) 251-6745 and we will come out, look at your openings, and walk you through the options in plain language. No pressure, no fine print, just a square deal.

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