Therma-Tru Window Replacement Nationwide | TruePane Windows & Doors

Therma-Tru Window Replacement: The Palm Beach Gardens Owner’s Guide

Therma-Tru window replacement in Palm Beach Gardens typically runs $340-$720 per window installed, and TruePane completes most single-unit swaps in one visit. We keep common Therma-Tru sash and hardware components on the truck, which means we can usually bring the unit back to square the same afternoon. Most homeowners in Palm Beach Gardens catch the problem the way you likely did: a window that once sealed tight against summer humidity now sweats, sticks, or rattles in the afternoon sea breeze off the Intracoastal.

Call (772) 794-8169

Therma-Tru built its name on entry doors, but thousands of Palm Beach Gardens homes went up with their matching casement and sliding window lines during the 1990s and early 2000s build-out. Those units are now twenty to thirty years old. South Florida sun and salt air age the seals and hardware faster than a northern install would. What fails first is rarely the glass itself. It’s usually the weatherstripping channel, the sash lock, or the sealant bead where the frame meets the stucco. We’re an independent service provider, not a Therma-Tru affiliate, and we’ve been matching and replacing their window components across Palm Beach Gardens for years.

Which Therma-Tru Models This Applies To

This guide covers the Therma-Tru window lines most common in Palm Beach Gardens: the sliding patio-line windows, casement units, and the fixed-picture frames that flank front entryways in the PGA National, BallenIsles, and Mirasol neighborhoods. The compatibility gotcha owners hit is this: Therma-Tru changed its extrusion profile twice since the mid-2000s, so a sash glider from a 2005 unit will not seat correctly in a 2018 frame even if the rough opening measures the same. That’s why we never eyeball it.

Before quoting anything, our technician reads the etched corner bug or the label on the head jamb. If the label is gone, we measure the sash thickness and the glass unit depth with a caliper. On Therma-Tru specifically, OEM replacement sashes still exist for most series, but for units past year fifteen, we typically recommend a quality aftermarket thermal unit that matches the visible profile and exceeds the original U-factor. The OEM route is the right call when you’re under an active builder warranty or matching an adjacent window in a visible elevation. Otherwise, aftermarket gets you better glass at a lower installed price, and we quote both options side by side on paper so you see exactly what you’re buying.

Signs Your Therma-Tru Window Replacement Is Failing

• Condensation trapped between the panes. This means the insulated glass seal has failed. In Palm Beach Gardens humidity, a dead seal doesn’t just fog, it also starts letting moist air into the wall cavity. Once you see interior fog that won’t wipe off, the glass unit is done.
• The sash binds or drops when you open it. The constant heat of a west-facing exposure warps Therma-Tru vinyl and composite frames slowly over time. A sash that used to glide now catches, which tells us the frame channel or the pivot bar is out of spec.
• You can feel air or see daylight at the weatherstripping. The compression strip on these windows hardens in salt air faster than in dryer climates. When the seal no longer bounces back, conditioned air pours out every afternoon. In Palm Beach Gardens, that’s a year-round cooling bill problem, not just a winter draft.
• The lock no longer catches or the crank spins without moving the sash. Therma-Tru’s older casement hardware wears at the gear teeth. This is a small parts fix if caught early and a full sash replacement if the operator gets forced.
• Water staining or soft drywall under the window. This is the one that worries us most. It usually means the seal between the window flange and the rough opening has failed, not just the window. South Florida’s afternoon thunderstorms will keep finding that path until someone re-flashes the opening properly.

Replacement Cost & What’s Included

Here’s what we quote in Palm Beach Gardens, line by line, on paper:

• Sash-only replacement: $180-$340 per sash, installed, depending on series and whether it’s OEM or a matched aftermarket unit.
• Complete window replacement (frame and sash): $340-$720 per opening for standard residential sizes under 24 square feet.
• Hardware-only repair (locks, cranks, balancers): $85-$190 per window, most done on first visit.
• New construction or enlarged openings: $620-$1,100 per window, permit and flashing included.

The price includes removal, disposal of the old unit, new sealant and flashing as needed, and both warranty layers registered in writing before our truck leaves your driveway. That last part is The Keystone Standard. It means the manufacturer warranty and our Done Right Promise are both documented and active, with durations stated. We don’t bury anyone in fine print after the fact. If it’s not in the written scope, it’s not in the price, and if it’s in the price, we stand behind it.

DIY or Call Us?

There are two things you can safely check yourself. First, clean the track and confirm no debris is jamming the sash. Second, inspect the visible weatherstripping for tears and harden it with a silicone lubricant once. Don’t pull the sash out of the frame. Don’t touch the glass unit. A Therma-Tru window sash under tension can drop and take a hand with it when the pivot bar releases wrong, and we’d rather you keep your fingers.

Where DIY goes sideways in Palm Beach Gardens specifically is the sealant and flashing work. You can buy a sash online, but if the new unit seats even an eighth-inch out of true, you get the same air leak, same water intrusion, and a voided manufacturer warranty because the install wasn’t performed to spec. Then you’re calling us anyway, only now the wall has had another summer to soak. If the window is binding, leaking, or sweating between the panes, call (772) 794-8169 and we’ll measure it twice and quote it straight.

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