Therma-Tru Windows & Doors Nationwide

Therma-Tru Windows & Doors: The West Palm Beach Owner’s Guide

We stock and install Therma-Tru-compatible windows and doors across West Palm Beach, with typical installed replacement costs running $4,500-$15,000 for standard window projects and $8,000-$25,000 for impact-rated units. Most homeowners discover the problem when a door won’t latch flush after a humid summer, or when they notice light bleeding through a frame gap that wasn’t there in March. In neighborhoods from El Cid to Northwood, we see the same pattern: Florida’s salt air and seasonal swelling push Therma-Tru components past their tolerance faster than the inland ratings suggest.

Call (561) 475-3903

Which Therma-Tru Models This Applies To

Therma-Tru uses a date-stamped label system, not a single model plate, so identification takes a careful eye. Entry doors carry a corner label with the series name - Classic-Craft, Fiber-Classic, or Smooth-Star - plus a manufacturing date code that matters for part matching. Window units have a similar label inside the jamb, though humidity often degrades the adhesive after seven or eight years in West Palm Beach conditions.

The critical compatibility gotcha: Therma-Tru changed its hinge mortise spacing in 2019, so a pre-2019 door slab won’t accept current hinge kits without shimming or re-routing. We carry both patterns on the truck. For multipoint locking systems, the Classic-Craft and Fiber-Classic use a 45mm backset on entry sets, while Smooth-Star moved to 48mm in 2021 - a 3mm difference that will bind the deadbolt if forced.

OEM parts from Therma-Tru ship on a ten-to-fourteen-day timeline, which is why we stock quality aftermarket equivalents from Truth Hardware and Hoppe where the spec matches. We always show the customer both options with the part number visible, and we note the choice on the written quote.

Signs Your Therma-Tru Windows & Doors Is Failing

• The door sticks in summer, then gaps in winter. This is the fiberglass skin separating from the polyurethane core, or the frame racking in the opening. In West Palm Beach, the daily humidity swing from 65% to 90% accelerates the cycle; we measure the gap with a feeler gauge and check whether the corner sealant is still flexible.
• Condensation between glass panes on impact windows. The IGU (insulated glass unit) seal has failed, and the desiccant inside the spacer is saturated. On Therma-Tru impact units, this usually means the entire sash needs replacement - the glass and frame are laminated together for code compliance.
• Multipoint lock won’t throw all three bolts. The gearbox inside the door edge has stripped, or the keeps (strike plates) have shifted in the frame. We see this most on west-facing doors in West Palm Beach, where afternoon expansion throws the alignment off by 1/16″ - enough to jam the mechanism.
• Water stains at the sill or threshold. The weep holes are clogged with salt residue, or the sill pan flashing was omitted during original installation. On slab-on-grade homes in Flamingo Park and Southland Park, hydrostatic pressure pushes water up through the threshold fastener holes.
• Cracking or delamination at the bottom rail. The fiberglass skin has been wicking standing water; the core is compromised. This is common on outswing units without adequate overhang, which describes half the ranch homes built between 2010 and 2018 in the western suburbs.

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Replacement Cost & What’s Included

The range spreads wide because West Palm Beach permitting falls under two jurisdictions: city proper and Palm Beach County unincorporated, with different inspection schedules and fees. Our quote breaks out permit costs separately, and under Clause 1 of the Haven Standard, that written price is the price - no change proceeds without a signed change order, which is how we’ve kept 4,000-plus projects within a few percent of the original number since 2007.

Every Therma-Tru job includes a one-year workmanship warranty, the 365-Day Done Right Promise, and a documented photo record of the opening condition, the installation sequence, and the final weather-sealing detail. The customer gets the binder before we leave the driveway.

DIY or Call Us?

There’s a safe middle ground here. A homeowner can check the label location, photograph the failed component, and verify whether the weep holes are blocked - that’s useful intelligence and it costs nothing. But Therma-Tru impact doors and windows are engineered assemblies; remove the wrong screw and you’ve compromised the HVHZ (High Velocity Hurricane Zone) rating that your insurance policy depends on. The multipoint lock mechanism is under spring tension, and the laminated glass in impact units won’t cut cleanly without specialized tools.

We don’t recommend DIY on these for the same reason we don’t let customers pull their own permits: the documentation chain matters when you sell the house or file an insurance claim. If you’re holding a part number and want to know whether we stock it, call (561) 475-3903 and we’ll pull the spec sheet while you’re on the line. Free estimate, written before anyone picks up a tool.

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