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CWS Window Installation: The Fort Myers Owner’s Guide
If you have a CWS window that’s binding, leaking, or showing a fogged pane, the fix usually comes down to the installation, not the window itself. We stock CWS-compatible installation components and perform full CWS window installation service in Fort Myers most days for $185 to $640 per opening, depending on the part and the opening type. Most Fort Myers homeowners discover the problem the way you just did: a draft that was not there last winter, a sash that suddenly needs two hands to lift, or a water stain on the interior sill after a hard summer storm.
The first thing to know is that CWS windows are built to a spec, and when the installation around them fails, the window gets blamed for it. We see it every week in Fort Myers, from McGregor Boulevard bungalows to gated communities off Daniels Parkway. The window is not necessarily bad. The way it was set, flashed, or sealed often is. That distinction matters because it changes what you pay and whether the problem stays fixed.
Which CWS Models This Applies To
CWS manufactures several window lines, and the installation requirements differ by series. The work we do most often in Fort Myers involves single-hung and horizontal roller windows in CWS’s 50, 70, and 90 series, along with fixed picture windows and casement units that have been in place for fifteen years or more. Each series has its own frame depth and anchoring pattern, which means a component that fits a 70 series will not necessarily seat correctly in a 90 series opening.
The reliable way to identify what you have is to look for the AAMA certification label, usually printed on the spacer bar between the panes or stamped on the frame channel. That label will list the series number, the glass package, and sometimes the manufacture date. If the label is gone, the frame width is the next best clue: a 2-5/8 inch frame is typically a 50 series, while the 70 and 90 series run closer to 3-1/4 and 4-1/2 inches respectively. We measure twice on site and match the component to the opening, not the other way around.
One compatibility gotcha with CWS worth knowing before you buy parts online: CWS changed their balance shoe design around the 50 series in the mid-2010s, and the older and newer shoes are not interchangeable even though they look alike from a photograph. That’s one reason we carry both configurations on the truck and verify the stamp on the shoe before anything gets unscrewed. As an independent service provider, TruePane Windows & Doors is not affiliated with CWS, but we keep their factory specs on file because a wrong guess on a balance shoe turns a one-hour job into a three-visit problem.
Signs Your CWS Window Installation Is Failing
Here are the five symptoms we hear most from Fort Myers homeowners, and what’s actually going on behind each one:
- Drafts around the frame in winter, not at the glass. The glazing is fine; the sealant bead between the frame and the rough opening has dried and cracked. Florida sun breaks down even top-shelf sealant in five to seven years, and once the bead fails, air moves freely around the window, not through it.
- A sash that suddenly drags or drops when you lift it. This is almost always a failed balance assembly, not a dirty track. CWS coil balances carry tension for years, and when the coil gives out, the sash weight stops being supported. You feel it as a window that slams shut or will not stay up.
- Water staining on the interior sill after a rain. The window’s weep system is clogged or the exterior flashing was not lapped correctly at install. Fort Myers gets afternoon downpours that push water sideways, and a flashing error that was invisible during dry weather shows itself the first time a storm hits from the east.
- Condensation between the panes that will not wipe off. The insulated glass unit has lost its seal. In coastal Florida air, a failed seal shows up fast. The glass unit itself is replaceable, but if the frame was set out of square at the original install, the new unit will not seat evenly and the fog comes back.
- A window that locks with difficulty or not at all. The frame has shifted or was installed slightly racked. Humidity and soil movement in Florida do this over time. It’s not just an annoyance; a window that will not lock is a window that is not doing its job in a storm.
Replacement Cost & What’s Included
For Fort Myers homeowners, CWS window installation repair work generally lands between $185 and $640 per opening when we’re replacing installation components like balances, shoes, pivot bars, sealant beads, or exterior flashing. A full-frame removal and re-installation of an existing CWS window runs higher, typically $850 to $1,400 per window, because we are pulling the unit, correcting the rough opening, re-flashing, and re-setting the window to square.
Here’s what that includes in plain terms:
- Parts at cost, not marked up like an internet mystery. We show you the line item for the balance assembly, shoe, sealant, or flashing before we start.
- Labor in one visit for most component work. One truck, one crew, the part matched to your series on site.
- The Keystone Standard on every job. Both manufacturer warranty layers registered in writing, durations stated, before the truck leaves your driveway.
- Our 90-Day Done Right Promise. If the work is not done right, we make it right. No paperwork fights, no fine print.
What drives the range is the series, the number of windows, and whether the opening itself needs correction. A 50-series balance swap on a ground floor is the low end. A 90-series casement with a rotted rough opening on a second story is the high end. We will not know until we see it, and we will not guess over the phone and then change the number later. The price we quote is the price on the bill.
DIY or Call Us?
There are safe things you can check yourself. Look at the sealant bead around the exterior frame: if it is cracked, crumbling, or pulling away, you have found at least part of the problem. Check the weep holes at the bottom of the frame exterior and clear any debris. Note when the drafts happen and whether the sash sits level.
What we would not recommend is pulling a CWS sash out and trying to replace the balance coil or shoe yourself. Balance assemblies are under tension, and when a coil releases unexpectedly, it takes off a thumbnail or worse. We have also corrected more than a few DIY attempts where the wrong shoe was ordered online, forced into place, and the window ended up more out of square than before. Some things are worth doing yourself. This one, most of the time, is not. Call (239) 323-5522 and let one of us take a look before the window gets more damaged than it already is.
FAQs
In the Fort Myers climate, a properly done CWS window installation should hold for fifteen to twenty years before the sealant and flashing need attention, though the glass seal itself can fail earlier if the window faces direct western sun or salt air from the coast. We register both warranty layers in writing at install so you know exactly what is covered and for how long. Call (239) 323-5522 if you are not sure what your current window is still under.
In most cases, yes. Sealant beads, balance assemblies, pivot bars, and exterior flashing are all individually replaceable, and we stock CWS-compatible components alongside parts for PGT, CGI, and ES Windows. Full replacement is only the answer when the frame itself is compromised or the rough opening has structural damage. We will show you the difference on site and let you decide with the facts in front of you.
Most single-window component work, like a balance replacement or re-sealing, takes one to two hours once we are on site. A full re-installation of an existing window runs a half day per window. We measure every opening twice, quote you on paper before any work begins, and most component jobs are done in a single visit. Call (239) 323-5522 and a live person will schedule a time when we will actually show up, on time, ready to work.
We stock the most common CWS balance shoes, coil balances, pivot bars, and sealant systems for the 50, 70, and 90 series on our Fort Myers service trucks. If your window is an unusual size or from a discontinued line, we source the part from our supplier network and schedule the install as soon as it arrives. Either way, we tell you up front what is in stock and what is not, and the quote does not change.
Written by Dale Kessler, Owner, TruePane Windows & Doors at TruePane Windows & Doors, serving Fort Myers 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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