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Therma-Tru Window Installation: The Boynton Beach Owner’s Guide
We stock and install Therma-Tru-compatible window units and hardware across Boynton Beach, with most complete replacements running $450 to $1,100 installed depending on the series and glass package. Same-week scheduling is typical for in-stock parts; special-order Therma-Tru sashes usually land in 5 to 7 business days. Most owners discover the problem the same way: a sash that won’t stay up, a crank that spins without grabbing, or condensation that won’t clear between the panes. The humidity here doesn’t cause these failures, but it sure makes them visible faster.
Which Therma-Tru Models This Applies To
Therma-Tru built its name on entry doors, but their window lines cover a wide range of casement, awning, double-hung, and sliding units installed in homes across Boynton Beach and Palm Beach County. The compatibility gotcha most owners miss is this: Therma-Tru’s window hardware was sourced from multiple suppliers over the years, so two windows that look identical from the outside may take different balance systems or hinge sets. The model label is usually on the frame jamb or head, not on the glass. We match parts by that label, the sash measurements, and the hardware profile, and we bring the common balances, hinges, and lock sets on the truck so the first visit actually finishes the job.
If the label is gone, we measure the sash thickness and the channel width, and we can usually identify the series from there. For older units where Therma-Tru no longer supplies certain hardware, we use OEM-grade aftermarket components that match the original geometry. We’re an independent service provider and not affiliated with Therma-Tru, but we’ve been matching and installing their window hardware for years, and we’ll tell you plainly when an aftermarket balance is the better call than an OEM part with a three-week lead time.
Signs Your Therma-Tru Window Installation Is Failing
- Sash won’t stay raised. The balance system has lost tension or a pivot shoe has cracked. In Boynton Beach’s salt-heavy air, the coil balances on older Therma-Tru units corrode faster than the frames do.
- Crank turns but the sash doesn’t move. The operator gear has stripped or the arm has popped out of its track. This is most common on casement windows that get opened daily during the winter months when houses actually air out.
- Condensation between the panes. The insulated glass seal has failed. Once that argon or krypton fill leaks out, the fog shows up around hurricane season, not in the dry months.
- Lock point won’t engage or the keeper is loose. The sash has shifted slightly out of plane, usually from house settling or a worn hinge. The window still looks fine from across the room, but it isn’t sealing against wind-driven rain the way it should.
- Sash sticks or binds midway. The jamb liners are worn or the frame has a slight out-of-square condition common in older Boynton Beach homes on reclaimed ground.
Replacement Cost & What’s Included
For Boynton Beach homes, a complete Therma-Tru window replacement typically runs $450 to $1,100 installed, with the spread driven by series, glass package, and whether the frame needs refitting. A hardware-only repair, meaning a balance or hinge replacement without touching the glass, usually falls between $125 and $300. You’ll get a written line-item quote before any work starts, and the quote covers everything: the part, the labor, the disposal of the old unit, and the cleanup. No surprise line items on the bill. Both warranty layers get registered in writing before the truck leaves the driveway, and the workmanship is covered for 90 days under the Done Right Promise. If it’s not done right, we make it right.
DIY or Call Us?
There are things worth checking on your own: a loose crank handle you can tighten with a screwdriver, debris in the track, or a lock point that’s simply misaligned. What we don’t recommend is replacing a balance system or pulling a sash yourself. The tension in a coil balance can release quickly, and once a insulated glass sash is out of the frame, the odds of a cracked corner or broken seal go up fast. If the pane is not true, the job is not done, and that’s the standard Dale Kessler has held since the day the company opened. If you’re not sure whether it’s a five-minute fix or a full swap, call (561) 708-6771 and we’ll talk you through what you’re looking at.
FAQs
Expect 20 to 30 years from the frames, with the insulated glass seals typically failing between year 12 and year 18 in our humidity. Units on the east side of I-95, where salt air is constant, tend to show hardware wear about five years earlier than the same unit inland.
Yes, and we’ll tell you when a repair makes sense. Balance systems, hinges, operators, and lock sets are all replaceable at a fraction of a full unit cost. If the glass seal has failed, the sash or the IGU gets replaced rather than “repaired,” because a failed seal has no honest fix. Call (561) 708-6771 and describe what you’re seeing, and we’ll give you a straight answer on the phone.
Most single-window replacements run 2 to 3 hours from removal to cleanup. A full-hardware repair is usually 45 to 90 minutes. Special-order parts add ship time, but we confirm the lead time before you approve anything.
We keep the most common balances, hinges, operators, and lock sets on the truck for Therma-Tru units, alongside hardware for PGT, CGI, and CWS. The truck is stocked for the Boynton Beach market, and for the majority of call-outs, the part needed is on board the first visit.
Ready to get your Therma-Tru window working right? Call (561) 708-6771 for a free estimate. A live person answers, day or night, and we’ll schedule a time that works for you. We’ll be there when we say.
Written by Dale Kessler, Owner, TruePane Windows & Doors at TruePane Windows & Doors, serving Boynton Beach and nearby areas.
Six Reasons Homeowners Choose TruePane Windows & Doors
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
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A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.



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