Therma-Tru Window Installation Nationwide | TruePane Windows & Doors

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

Therma-Tru window installation in Palm Beach typically runs $85 to $240 per opening for parts and labor when we’re replacing failed components like sashes, balances, weatherstripping, or glass packs, and $400 to $900 per window when the full frame needs to be pulled and reset. We keep the most common Therma-Tru replacement parts on the truck and can usually complete the repair the same day we look at it. Most Palm Beach homeowners call us after noticing a window that won’t stay open, a sash that binds when the humidity climbs, or condensation fogging between the glass panes that won’t wipe away.

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Key Takeaways:

• Therma-Tru is primarily a door manufacturer, but many Palm Beach homes have Therma-Tru windows in coastal builds from the early 2000s onward through builder supply lines.
• We identify the exact part by the etched glass code or the frame sticker, not by guesswork.
• Both warranty layers are registered in writing before our truck leaves your driveway.
• Most single-opening repairs are done in one visit.

Which Therma-Tru Models This Applies To

Therma-Tru’s window lines in Palm Beach are most often the vinyl single-hung and casement units that came through builder channels on newer construction, along with a smaller number of sliding windows in sunrooms and enclosed lanais. The replacement parts differ by series, and here’s the gotcha most homeowners run into: Therma-Tru changed their sash balance design around 2012, and the older coil balance from a pre-2012 window will not interchange with the newer block-and-tackle balance, even when the window width looks identical. The coil balance cartridge is about 3/8 inch narrower than the block-and-tackle shoe, which means you cannot eyeball the part. We pull the stamped code printed on the side of the sash, or match the etched manufacturer code in the lower corner of the glass, and order from that. On the OEM-versus-aftermarket decision, we’ll tell you straight: for balances and tilt latches, a quality aftermarket equivalent from a supplier like SWISCO holds up fine in Palm Beach humidity. For the glass pack, stick with OEM or a certified insulated glass replacement. Aftermarket glass packs measured wrong will fog in two summers.

Signs Your Therma-Tru Window Installation Is Failing

• Sash drops or slams when you let go. The balance system has lost tension or the coil has snapped. In coastal Palm Beach air, the metal coil inside the balance housing corrodes faster than inland, and once one coil goes, the other side works harder and fails within months.
• Window drags or binds when you open it. The vinyl track has warped slightly from years of direct sun on a west-facing wall, or the sash has settled and the corner welds are no longer square. Forcing it shears the tilt latch pins.
• Fog or moisture trapped between the panes. The insulated glass seal has failed. Palm Beach’s salt air and humidity push seal failure earlier than the manufacturer’s typical 10-to-20 year window, often by year 8 or 9 on east-facing ocean breeze exposures.
• You feel a draft even when the window is closed and locked. The weatherstripping has compressed past recovery. This is the most common failure we see, and also the cheapest fix when caught before water intrusion starts.
• Condensation or dampness on the interior sash edges. The weep system is clogged with salt film or debris, and water is pooling inside the frame track instead of draining. Left alone, it migrates under the sill and into the wall.

Replacement Cost & What’s Included

In Palm Beach, most Therma-Tru window part replacements land between $85 and $240 per opening. A pair of balances runs $85 to $145 installed. Tilt latches and weatherstripping are usually under $120. A failed glass pack for a standard single-hung runs $180 to $340, depending on the glass dimensions and whether argon fill and Low-E coating are needed to match the existing window. A full window installation, where the old frame is pulled and a new Therma-Tru unit set in place, lands between $400 and $900 per opening, with the spread driven by whether stucco cuts, brick work, or interior trim repair are involved. Every quote is written line by line on paper before work starts, and the price we quote is the price on the bill. We register both warranty layers in writing and stand behind the workmanship for 90 days under the Done Right Promise.

DIY or Call Us?

You can safely identify the problem yourself: note which part of the window fails, take a photo of the sticker or etched code, and check whether the failure is on one side or both. What you should not do is pull a tensioned coil balance out of the sash with a screwdriver. The coil is under spring load, and in a worn housing, the release is unpredictable. We see far more damage from a homeowner attempting a balance swap than from the original failure itself. If the problem is weatherstripping or a tilt latch, a careful homeowner with the right part can handle it. If it involves balances, glass, or the frame, call us at (850) 801-5596 and we’ll look at it in person.

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