Therma-Tru Window Replacement Nationwide | Winslow Windows & Doors

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

Therma-Tru window replacement in Pompano Beach typically runs $285 to $640 per window installed, depending on the unit’s size and whether it’s an OEM or quality aftermarket match, and most single-window swaps are finished in one visit. What you’re likely dealing with is a failed sash, worn weatherstripping, or a fogged insulated glass unit (IGU) in a Therma-Tru casement, awning, or sliding window that has spent years facing Florida sun, salt air, and hurricane-season humidity. Here’s what you need to know before you spend a dollar.

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Key Takeaways

• We stock common Therma-Tru replacement sashes, balances, and hardware for a range of series, and special-order the rest.
• Installed pricing in Pompano Beach starts around $285 for a basic single-hung and climbs based on glass package, size, and framing condition.
• OEM Therma-Tru parts carry the longest track record, but some aftermarket balances and latches are every bit as good at 40-60% of the cost.
• We’re an independent installer, not a Therma-Tru dealer, which means we match the part to your window rather than pushing one product line.

Which Therma-Tru Models This Applies To

If your window was built in the last 15 years, you’re most likely working with a Therma-Tru casement, awning, single-hung, or glider window from their standard architectural series. The single biggest compatibility gotcha with Therma-Tru is the balance-and-shoe system: their spiral balances use shoe sizes that vary between the 300-series and 400-series frames, and if you order a balance for one and install it on the other, the sash won’t sit flush and you’ll be back at square one. We pull the existing balance, read the stamped end tip, and match it before ordering anything.

On the OEM-versus-aftermarket question, here’s the honest version. For seals, sill gaskets, and latches, quality aftermarket equivalents often meet or exceed OEM spec at a lower price, and that’s what we carry on the trucks. For balances, pivot bars, and all glass units, we recommend original Therma-Tru components or a direct engineered match. Your window’s serial number and an etched glass marking are the fastest way to identify the series, and if you send us a photo of the frame corners before we come out, we can usually confirm compatibility before the first trip.

Signs Your Therma-Tru Window Replacement Is Failing

• Condensation between the glass panes: The IGUs in Therma-Tru windows eventually lose their seal after years of Pompano Beach heat-cycling; the air inside expands and contracts until the silicone bond breaks. Once that happens, the only fix is a new IGU or a replacement sash.
• Sticky or hard-to-raise sash: This usually means the spiral balance has lost tension, or the balance shoe has cracked. Rushing this repair with the wrong shoe size causes the sash to tilt forward, which is a finger-pinch risk.
• Loose or rattling sash in the frame: Worn side jamb weatherstripping and crumbled sill gaskets are the usual culprits. Left alone, water finds its way past the gasket and into the sill track, and in coastal Pompano Beach that means mold in the frame within a season.
• Lock or latch that won’t engage: Therma-Tru’s casement and awning hardware is designed for a precise point of contact, and if the sash has warped slightly from sun exposure, the lock stops catching. We replace the multi-point lock or re-align the sash; the fix is usually quick.
• Visible cracking or separation at the frame corner welds: This is structural, not cosmetic. A cracked corner weld on a welded-vinyl Therma-Tru window means the frame is no longer square, and the window will never seal correctly again. Replacement is the common-sense call.

Replacement Cost & What’s Included

For Pompano Beach and the surrounding Broward County market, this is the pricing reality for Therma-Tru window replacement as of 2026:

• Single-hung replacement sash or full window: $285 – $390 installed, depending on glass package
• Casement or awning replacement window: $360 – $520 installed, hardware included
• Sliding glider replacement window: $410 – $640 installed, track and rollers included
• IGU-only replacement (sash reused): $190 – $285 installed, when the frame and sash are sound
• New balance and shoe pair (parts only, no full window): $85 – $160 installed per sash

Every quote is a written line item. What’s included: removal of the old unit, disposal, shim and level the frame, install the new sash or window, seal with backer rod and an elastomeric caulk rated for South Florida UV, and a workmanship warranty from us. You won’t see a change order after we start. If there’s hidden framing damage from a previous leak, we photograph it and walk you through the math before touching anything else.

DIY or Call Us?

What you can safely check on your own: whether the sash is square in the frame, whether the balancers are visibly disconnected, and whether the weatherstripping is cracked. What goes wrong for most owners is the balance-and-shoe swap. Those spiral balances are under constant tension, and a slipped clip or an unseated shoe turns a $90 parts job into a $400 sash and frame repair. If you’re in a Pompano Beach single-family home with an older Therma-Tru frame, my honest suggestion is to let us look at it. First opinions are free, and if it turns out to be a ten-minute clip fix, I’d rather tell you that over the phone than have you wrestle it yourself. Call (904) 893-3309 and we’ll schedule a time that works.

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