Therma-Tru Window Replacement Nationwide | Winslow Windows & Doors

Therma-Tru Window Replacement: The Fountainebleau Owner’s Guide

If your Therma-Tru window has a failed seal, cracked glass, or a warped sash, we can replace it. A Therma-Tru window replacement in Fountainebleau typically runs $320 to $780 per window installed, depending on size, glass package, and whether we’re swapping the sash or the full frame. Most Fountainebleau homeowners discover the problem the same way: a window that fogs between the panes after a heavy rain, or a crank handle that suddenly spins without moving the sash. You’re not looking for a whole-house redo; you’re looking for one window fixed right, matched to the one next to it, and priced so you know what you’re paying before we start.

Call (727) 620-6983

We’re an independent Fountainebleau window and door company, not affiliated with Therma-Tru. That matters because we stock and install Therma-Tru-compatible replacement windows and components from our own local inventory, and we also work with PGT, CGI, and CWS when the job calls for it. Ed Winslow’s name is on the door, literally. That means he answers for every job we do.

Which Therma-Tru Models This Applies To

Therma-Tru makes a wide range of entry doors and, in recent years, a growing line of vinyl and fiberglass windows sold through dealer channels across Florida. The compatibility issue Fountainebleau owners hit most often is this: Therma-Tru window hardware and glass packages are series-specific. A hinge pin or balance shoe from a Classic-Craft window will not always fit a Slim-Line or Tru-Defense unit, even if both look close in size. The label is the fastest way to identify what you have. Look at the top edge of the sash or the head jamb for a white or aluminum tag with a five-to-six-digit model code. If that tag is gone (sun fade and cleaning products take a lot of them out), measure the visible glass width and height in inches, then measure the full sash width. That combination almost always points us to the right replacement.

OEM vs aftermarket: For Therma-Tru glass panels and weatherstripping, we recommend and install OEM where the part is still available and reasonably priced. For balance systems, pivot bars, and hardware, a quality aftermarket equivalent from a manufacturer we trust can cut the cost 20 to 30 percent without cutting lifespan. We’ll tell you which route we’re taking and why before any money changes hands. That’s the Fountainebleau way, and it’s our way too.

Signs Your Therma-Tru Window Replacement Is Failing

• Fog or condensation between the panes. The desiccant inside the insulated glass unit has saturated and the hermetic seal has failed. South Florida humidity accelerates this faster than almost anywhere else in the country. Once the seal goes, the fog never fully clears; the unit needs replacing.
• A sash that drops or won’t stay open. The constant-force balance springs in the side jamb have lost tension or snapped. Therma-Tru vinyl windows use a specific shoe-and-spring assembly that’s inexpensive to replace when matched correctly, but a mismatch turns a two-hour job into a two-day headache.
• Visible day light or a draft at the weatherstrip. Fountainebleau’s heat and salt air break down the flexible bulb seals faster than the glass itself. When the seal flattens or tears, you’ll feel the air move, and your electric bill tells the same story.
• A crank handle that spins without moving the window. The worm gear inside the operator has stripped. This happens most often on casement windows that get force-cranked after years of corrosion from coastal humidity. Replacement operators are usually available, and it’s a cleaner fix than most people expect.
• Black streaks or soft spots on the frame corners. That’s moisture finding its way behind the cladding and into the wood or composite. By the time it shows on the surface, the frame needs more than a surface patch. We see it most often on north-facing Fountainebleau windows that never really dry out after morning dew.

Replacement Cost & What’s Included

In Fountainebleau, the installed price for a Therma-Tru window replacement generally breaks down like this:

• Glass-only insulated unit replacement: $180 to $340 per window, depending on Low-E coating and argon fill.
• Full sash replacement (same frame, new sash and glass): $320 to $520 per window.
• Complete frame-out window replacement: $480 to $780 per window, including interior trim work and exterior sealing.

Every quote from us is a written, line-item price. The number we give you is the number on the invoice, period. There’s no change order because somebody “found something” after the first screw came out. Our workmanship warranty stands behind the install, and the manufacturer’s warranty covers the glass and frame. Ed has been doing this in Fountainebleau since 2011, and no one has ever had to chase him down to honor a warranty. That’s the whole point of the Done Right Promise: if it’s not done right, we make it right.

DIY or Call Us?

For a failed glass seal, there’s no safe DIY path. The insulated glass unit is a sealed, gas-filled assembly, and once the seal is gone, resealing it isn’t possible from the outside. For a stripped operator or a worn balance shoe, a handy homeowner with the exact right replacement part can sometimes get it done, but the “exact right” part is where Fountainebleau DIY jobs usually go sideways. Order the wrong series, and the new part either won’t seat or fails within weeks.

What you can safely check yourself: the model tag I mentioned earlier, the glass dimensions, and whether the failure is glass, frame, or hardware. Take a photo of the tag and the window overall, and call us at (727) 620-6983. We’ll give you a straight read over the phone and an exact price before anyone rolls a truck. No trip charge in our home county, and $40 off any repair over $200.

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