Therma-Tru Window Replacement Nationwide | Winslow Windows & Doors

Therma-Tru Window Replacement: The Fort Lauderdale Owner’s Guide

Therma-Tru window replacement in Fort Lauderdale typically runs $275 to $650 per window installed, depending on the sash, hardware, and glass package your unit needs. We stock the most common Therma-Tru-compatible window components on our trucks and can usually complete the swap the same day we diagnose it. Most owners discover the problem the hard way: a window that won’t latch after a storm, condensation fogging between the glass panes, or a crank handle that spins without moving the sash. By then, the Florida humidity and salt air have already done their work.

Call (904) 747-8989

Which Therma-Tru Models This Applies To

We work on the full Therma-Tru window line, including their casement, double-hung, sliding, and awning series. The compatibility gotcha most owners hit is this: Therma-Tru has changed glass-pack and hardware specifications across production years, so a sash from a 2012 unit will not always seat cleanly into a 2021 frame, even when both carry the Therma-Tru name. The fastest way to identify your exact part is to check the corner of the glass for the etched manufacturer code, or the spacer bar between the panes for the serial stamp. If you can’t find either, we can match from measurements and hinge configuration during the estimate. For Fort Lauderdale homes, we recommend OEM Therma-Tru replacement sashes and hardware when they’re available; the aftermarket equivalents vary in weatherstripping quality, and a loose seal here means moisture intrusion during afternoon thunderstorm season. Glazing is one area where we do use quality aftermarket glass packs matched to the original spec, because the Florida Building Code compliance stays identical and the cost drops noticeably without sacrificing the impact or Low-E rating.

One more distinction: we also stock and install window components for PGT, CGI, and CWS systems, so if your home has a mixed collection of brands from different remodels, one call covers it. Winslow Windows & Doors is an independent service provider, not affiliated with Therma-Tru, which simply means we match and install their parts honestly without being tied to corporate pricing.

Signs Your Therma-Tru Window Replacement Is Failing

• Fog or haze between the panes. The seal on the insulated glass unit (IGU) has failed and Fort Lauderdale’s humidity is now living inside the window. This only gets worse with time, since moisture that gets in cannot get back out on its own.
• Hard cranking or a handle that slips. The operator mechanism or gear teeth are worn or corroded from salt air exposure. Forcing it will strip the gears completely and turn a hardware swap into a full sash replacement.
• Visible daylight through a closed window. Weatherstripping has compressed or the sash is misaligned in the frame. You can feel the draft at night, and your cooling bill shows it during the day.
• Water stains on the interior sill or wall below. The weep system is blocked or the frame seal has opened somewhere above the sash. We see this a lot in older Fort Lauderdale homes where original builders didn’t flash windows properly for the amount of rain we get.
• Latching problems after a storm. Wind-driven rain has forced the sash slightly out of square, or the lock point hardware has bent. We regularly replace lock receivers and keeper bars after hurricane season, especially in neighborhoods closer to the Intracoastal.

If your window is fogged, it’s failed, not dirty. If it won’t latch, it’s a security issue as much as an energy issue. Either way, the fix is a replacement component, not a cleaning.

Replacement Cost & What’s Included

Here’s what we quote in Fort Lauderdale, including parts and labor:

• Glass pack (IGU) replacement: $275 to $450 per window, depending on size, Low-E coating, and impact rating.
• Complete sash replacement: $325 to $550 per sash for standard sizes, higher for custom or impact-rated units.
• Hardware replacement (operators, handles, hinges, lock points): $85 to $225 per window, including the diagnostic visit if the repair proceeds.
• Full frame and sash replacement: $650 to $1,100 per window when the frame itself has water damage or is out of square.

The price range comes down to three things: the size of the opening, the glass package the original builder chose, and whether the frame is still sound enough to accept a new sash. We give you a written line-item quote before the work starts, and that quote doesn’t change once we open the wall or the frame. The 36500-Day Done Right Promise covers every window we install: if it’s not done right, we make it right. That’s Ed Winslow’s name on the work, and he doesn’t leave a job with a fogged-in corner or a latch that needs two hands to close.

DIY or Call Us?

Some things an owner can check before calling: look for the etched glass code in the corner of the pane, clear debris from the weep holes on the outside sill (a toothpick works), and note whether the window is flanged into the wall or held with screws inside the frame. That last one tells us whether the install will go through the exterior stucco or through the inside. What you shouldn’t do is attempt to remove an impact-rated glass pack or replace a sash yourself. Impact glazing is heavy, and if the seal isn’t seated correctly you lose the entire storm-rating effectiveness without knowing it until a hurricane comes through. Same with an out-of-square sash: if you force a new one into a compromised frame, you’ll crack the glass or ruin the operator within a week. Our background-checked technicians show up in uniform, diagnose it on the spot, and usually finish the swap the same visit. Call (904) 747-8989 and we’ll give you a straight answer before we ever send a truck.

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