Therma-Tru Impact Windows Nationwide | TruePane Windows & Doors

Therma-Tru Impact Windows in Delray Beach: What to Know First

We install, service, and replace Therma-Tru impact windows in Delray Beach, and most single-window jobs are priced between $850 and $2,400 depending on size, glass package, and whether the frame can be saved. We are an independent Therma-Tru service provider, not a factory arm, which means we tell you the truth about what your Therma-Tru window actually needs, even when the cheaper answer is repair. If you own a Therma-Tru product and want it done right the first time, call (561) 940-2917 and a live person will answer.

Call (561) 940-2917

This page is for Delray Beach homeowners who bought Therma-Tru on the strength of the name and now have a fogged seal, a binding sash, or a failed impact rating after a storm. We’ll walk through the real failure modes, what a proper fix costs, and why our technicians treat a Therma-Tru opening differently than any other brand on the truck.

How Therma-Tru Products Fail - and How We Fix Them

Therma-Tru built its reputation on entry doors, and their window lines use a different set of components than the door slab most homeowners know. In Delray Beach, where salt air and August humidity work on every opening, we see the same failures repeat. Here is what we find and what we do about it.

• Fogged insulated glass on Therma-Tru casement and fixed units. Therma-Tru windows assembled in the mid-2000s through the early 2010s used a butyl seal that does not hold up well against South Florida’s humidity swings. The symptom is condensation you cannot wipe off, worse in the morning. The fix is a new insulated glass unit, and we order it sized to the exact rough opening because Delray Beach homes built in the 1980s and 1990s rarely match the sticker dimension.
• Impact-rated sashes that bind after ten years in the salt air. The coastal Delray Beach climate accelerates corrosion on stainless steel hinges and locking hardware that would last twenty years inland. We see this most often on the Therma-Tru Impact Collection single-hungs along the Intracoastal corridor. The repair is hinge and roller replacement with marine-grade components, not a whole new window, and that is the difference between a $400 visit and a $2,000 replacement.
• Failed interlock seals on horizontal sliders after storm pressure cycling. Therma-Tru sliders use an interlocking meeting rail that is supposed to stay tight when wind pushes against the glass. Once that interlock spreads even an eighth of an inch, the impact rating is compromised and you will feel a draft before you see any water. We test every Therma-Tru slider with a deflection gauge before quoting anything. If the interlock is gone, the sash goes too.
• OEM-to-aftermarket parts confusion that voids the warranty. The single biggest mistake we see on Therma-Tru warranty claims in Delray Beach is a handyman using generic replacement hardware, then the manufacturer denies coverage because the part was not factory-specified. We register both warranty layers in writing before the truck leaves, and we document every part number we install so a future claim never turns into a paperwork argument.
• Frame rot at the bottom corners on Therma-Tru units installed before 2010. Therma-Tru windows are not immune to the standing water that sits on Delray Beach sills during rainy season, especially on east-facing walls. We open the corner joints, inspect the sill pan flashing, and rebuild the bottom rail if the wood or composite has started to swell. Skipping this step means the new impact glass goes into a frame that will fail in three years.

Our Therma-Tru Impact Windows Process

Every Therma-Tru job starts the same way: we measure, we diagnose, we put the numbers on paper, and we do not start until you have seen exactly what you are buying. Here is how a typical job runs.

1. 1
   The call. You reach a live person at (561) 940-2917. We ask what the window is doing, when it started, and whether you know the model or the year the house was built. No forms, no callbacks.
2. 2
   The site visit. A background-checked, uniformed technician measures the opening twice with a laser and a tape, checks the rough opening for square, and photographs the failure mode. Therma-Tru openings often run a quarter-inch out of square in the corners, and that changes how the new sash has to be set.
3. 3
   The parts decision. We quote OEM Therma-Tru glass and hardware where it is available and warranty-safe, and we tell you plainly when a quality aftermarket equivalent is just as good and costs less. The choice is yours, in writing, on paper, side by side.
4. 4
   The repair or replacement. We remove the old unit, inspect the frame and flashing, set the new impact-rated glass, and re-level the sash until it operates with one hand. Delray Beach’s wind-load requirements mean every opening gets checked against Miami-Dade or FBC specs, not assumed.
5. 5
   The test and the paperwork. We cycle the window fully, run a water test on the exterior, and inspect all seals. Then we register the manufacturer warranty and our own Keystone Standard coverage before the truck leaves your driveway.
6. 6
   The cleanup. Old glass leaves with us. The sill is vacuumed. The job is not done if the pane is not true.

What Therma-Tru Impact Windows Costs in Delray Beach

Expect a Therma-Tru impact window replacement in Delray Beach to run from $850 for a small fixed single-hung up to $2,400 for a larger casement or slider with full thermal glass. Here is how common scenarios break down.

• Single impact glass replacement (existing frame saved): $350 to $700 per sash, depending on size and tint.
• Full single-hung replacement with impact glass: $850 to $1,400 installed.
• Therma-Tru Impact Collection casement replacement: $1,200 to $2,100 installed, larger if the sash needs hinge hardware.
• Therma-Tru slider replacement with impact rating: $1,400 to $2,400 installed, with frame repair adding $200 to $500 if the sill shows rot.

The price moves on three things: the size of the rough opening, whether the existing frame is square and sound, and whether you need high-impact glass or can run a lower-pressure rating. We quote fixed pricing with no change orders, and a free written repair estimate. Seniors and veterans get 5% off permanently. Call (561) 940-2917 for a free estimate.

Why Delray Beach Homeowners Call TruePane Windows & Doors for Therma-Tru Work

We have been doing this work in Delray Beach since 2008, and Dale Kessler started TruePane in 2008 for one reason: too many impact window installs were leaving homeowners with voided warranties and sashes that never sat right. The Keystone Standard means both manufacturer warranty layers are registered in writing, the durations are stated upfront, and the workmanship is guaranteed for 90 days with no paperwork fights. A live person answers our phone 24 hours a day. If your Therma-Tru windows are beyond saving or you want a second opinion on a different line, we are authorized installers for PGT, CGI, CWS, and ES Windows too, and we quote them side by side on paper. We show up when we say, we measure twice, and if the pane is not true, the job is not done.

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