Therma-Tru Window Replacement Nationwide

Therma-Tru Window Replacement: The Orlando Owner’s Guide

Therma-Tru window replacement in Orlando typically runs $420 to $1,100 per window installed, depending on glass package, frame size, and whether you need an exact OEM sash or a quality-matched aftermarket unit. We stock Therma-Tru-compatible hardware, sashes, and full replacement windows at our Orlando shop, and most single-window swaps are done in one visit. You’ll usually discover a problem the hard way: a sash that won’t stay up, condensation you can’t wipe away from between the panes, or a crank that spins free while the window never budges.

Call (850) 679-8554

Florida humidity and afternoon storms do a number on window hardware. Metal corrodes, seals fail, and impact-rated glass that took a branch during a summer squall finally gives out. If you’re reading this, you probably already know which window is the problem. What you need is someone who can match the part without making you wait three weeks and guess about the price.

Key takeaways:

• Installed Therma-Tru window replacement in Orlando: $420 – $1,100 per window, with a written price before work starts
• We stock Therma-Tru-compatible sashes, balance systems, glass packs, and hardware on our Orlando trucks
• OEM versus quality aftermarket: we’ll tell you which makes sense for your window and budget
• Every job backed by the 365-Day Done Right Promise – parts and labor, in writing
• Call (850) 679-8554 for a free estimate – a real person answers

Which Therma-Tru Models This Applies To

Therma-Tru is best known for entry doors, but their window lines show up across Central Florida homes, especially in neighborhoods like Dr. Phillips, Winter Park, and College Park where builders leaned on Therma-Tru’s impact-rated casement and single-hung units. The compatibility gotcha most Orlando owners hit is this: Therma-Tru window hardware is rarely universal. A balance system from a 2009 single-hung won’t fit a 2015 model, even if both are “Therma-Tru.” You need to match the series, not just the brand.

Look for a small sticker or laser etching on the frame edge or sash corner. It’ll show a series code, glass spec (like LoE or impact-rated), and a manufacturing date. Photograph it before calling anyone. If the sticker is gone, we can measure the sash and identify the balance, hinge, or roller by the profile. On newer Therma-Tru units with tilt-in sashes, the pivot bar and shoe often point us to the exact part family. For older fixed windows, we’re typically replacing the glass pack or the full frame unit rather than hunting obsolete hardware.

One thing we tell every customer: we’re an independent Orlando windows and doors company, not affiliated with Therma-Tru. That means we can offer OEM when it makes sense and a quality aftermarket equivalent when it doesn’t. Sometimes the aftermarket part outlasts the original because manufacturers have revised the design since your window was built. We’ll tell you which way we’d go and why, with the price difference in writing.

Signs Your Therma-Tru Window Replacement Is Failing

• Sash won’t stay up (or falls slowly). The balance system – either a spiral, block-and-tackle, or spring – has lost tension or broken. Florida’s humidity and temperature swings accelerate metal fatigue here faster than in drier climates.
• Condensation between the glass panes. The insulated glass seal has failed. Once the desiccant inside the spacer is saturated, no amount of wiping fixes it. You’re buying a new glass pack, not a new window frame, in most cases.
• Crank turns but the sash doesn’t move. The operator gear stripped or the arm disconnected from the sash bracket. Most common on casement windows, especially if the crank has felt stiff for months before dying entirely.
• Visible daylight or water at the frame. The weatherstripping has compressed, the frame has shifted, or the original install wasn’t square. In Orlando’s storm season, this shows up as damp drywall or a musty smell before you notice the draft.
• Impact glass cracked or starred but not shattered. The lamination did its job – the window held. But that crack will spread, and the unit now has zero impact rating for the next storm. Replace it before June, not in October.

Replacement Cost & What’s Included

Here’s the honest Orlando pricing breakdown for Therma-Tru window replacement from our trucks:

• Glass pack only (insulated unit replacement): $180 – $420 installed
• Balance system or hardware replacement: $120 – $310 installed per window
• Full sash replacement (OEM or matched aftermarket): $350 – $750 installed
• Full window replacement (frame and sash, impact-rated): $650 – $1,100 installed per window

The spread comes down to glass package (standard LoE versus impact-rated versus obscure/tempered for bathrooms), frame size, and whether the original install left you with a clean opening or a fix-it-while-we’re-here situation. You get the price in writing before anything starts. It doesn’t change at the door. Every Therma-Tru window replacement includes the part, labor, haul-away of the old unit, and our 365-Day Done Right Promise: if the work isn’t right, we make it right, parts and labor, for a full year.

No vague “competitive rates.” No estimate that becomes a surprise invoice. The number we quote is the number you pay.

DIY or Call Us?

Here’s the honest split. You can safely check the basics: identify the series sticker, measure the visible glass dimensions, and photograph the broken part from two angles. That saves us a trip and gets you a faster, more accurate quote over the phone. What you shouldn’t do is start pulling trim or disassembling the sash. Balance systems on hung windows are under real tension, and a spiral balance that lets go takes a chunk of finger with it. Same goes for impact-glass removal – an impact-rated unit is heavy, and a botched lift means a shattered lamination and a trip to urgent care.

Sean Mackey has spent over two decades on windows and doors specifically. His crew has worked everything from College Park bungalows to Lake Nona stucco builds, and the rule on every job is the same: if we wouldn’t put it on our own house, we don’t put it on yours. If you want the part matched right and installed before the next summer storm, call (850) 679-8554. The price is free. The advice is free. The decision is yours.

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