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Therma-Tru Custom & Geometric Windows in Westchester: What to Know First
Custom and geometric Therma-Tru windows in Westchester typically run between $900 and $3,400 per opening installed, depending on shape complexity, glass package, and whether you’re matching an existing frame or starting fresh. We’re an independent Therma-Tru service provider, not a factory outlet, which means we diagnose honestly and source exactly what your opening needs. Most custom-geometry jobs wrap up within three to five weeks from measure to final walkthrough.
This page is for Westchester homeowners who already own Therma-Tru products or are planning a shaped window project. If you’re looking at an arched transom over a front door, a circular accent window, or a trapezoid that builders said couldn’t be done, call (850) 721-1218 and ask for Ed. We’ll tell you what’s possible and what it’ll cost before you spend a dime.
Key takeaways:
- We install and service Therma-Tru custom shapes: arches, circles, ovals, trapezoids, pentagons, and oversized openings.
- Free estimates with line-item pricing. No surprises on the invoice.
- Every job backed by the Done Right Promise.
- Live person answers the phone 24/7. No voicemail loops.
How Therma-Tru Products Fail - and How We Fix Them
Therma-Tru makes a solid product, but no window survives South Florida forever. Here’s what we see in Westchester homes, street by street and decade by decade:
- Smooth-Star series sash warping on west-facing walls. The Smooth-Star line uses a fiberglass-reinforced frame, but afternoon sun on big west exposures in Westchester causes gradual thermal bowing. You’ll notice the sash binds halfway up the track. We shim and realign, or replace the sash if the warp exceeds factory tolerance. More often than not, it’s a track adjustment, not a new window.
- Seal failure on geometric fixed units from Benchmark series. Circular and arched fixed windows from the Benchmark line develop condensation between panes faster than rectangular units. The curved spacer bar flexes microscopically during seasonal expansion, and eventually the desiccant saturates. When argon escapes, the glass fogs. We reglaze with a heavier-duty curved spacer that handles Westchester’s humidity swings better than the OEM design.
- Hardware fatigue on hinged patio door transoms. If your Therma-Tru transom window sits above a hinged patio door (common in Westchester ranches built in the 1990s), the repeated door slam transmits vibration upward. Over a decade, that loosens the transom glazing beads. We re-bed the glass and upgrade the bead retention clips rather than just re-caulking and hoping for the best.
- Improper flashing on builder-grade installs. This isn’t a Therma-Tru defect; it’s an installation problem. Many Westchester tract homes had windows set by crews that skipped sill pan flashing. Water wicks up the jamb, rots the rough opening, and the window gets blamed. We pull the window, repair the framing, and reset it with full sill pan and back-dam flashing. The window itself is often fine.
- Oversized opening sag on commercial-style trapezoid units. Big trapezoid windows over sliders in Westchester additions sometimes sag because the original header wasn’t sized for the span. The glass doesn’t crack; the vinyl glazing channel deforms and lets water in. We reframe the header properly, order the unit, and you’ll never think about it again.
Our Therma-Tru Custom & Geometric Windows Process
Here’s how a Therma-Tru shaped window job goes from your first call to the final inspection:
- 1
Call and talk to a real person. You reach someone at our office in Florida, 24/7. We listen to what you’re seeing and book a visit.
- 2
On-site measurement and diagnosis. We measure the existing opening with digital tools, check framing condition, and identify the Therma-Tru series you have. Ed grew up in Westchester and knows exactly what builders used in every decade of housing stock here.
- 3
Parts decision. We tell you honestly whether OEM Therma-Tru components or quality aftermarket parts make more sense for your budget and warranty situation. No upselling.
- 4
Written line-item quote. You get a fixed number before any work starts. If the scope changes, we tell you before we touch it. That’s the Winslow way.
- 5
Install or repair, done clean. Background-checked, uniformed techs arrive on time, do the work, then clean the site like we were never there.
- 6
Test and walkthrough. We seal-test, operate the unit, show you the work, and explain the Done Right Promise in plain language.
What Therma-Tru Custom & Geometric Windows Costs in Westchester
Here are realistic ranges for the Therma-Tru shaped window work we handle in Westchester:
- Arched fixed transom replacement: $900-$1,600 installed
- Circular or oval accent window (36-48 inches): $1,200-$2,200 installed
- Trapezoid or pentagon replacement over a slider: $1,500-$2,800 installed
- Oversized geometric unit (custom header work included): $2,400-$3,400+ installed
- Glass-only reglaze on a failed curved unit: $600-$1,100
What moves the price: glass package (impact-rated runs more), shape complexity, whether framing needs repair, and whether we’re matching an existing Therma-Tru series or starting from scratch. The honest answer is always in the written quote. Call (850) 721-1218 to schedule your free estimate, no trip charge inside our home county and a 10% discount for seniors and veterans.
Why Westchester Homeowners Call Winslow Windows & Doors for Therma-Tru Work
We’ve been serving Westchester and the surrounding communities since 2011, and Ed’s name is on the door, and on every job we do. When you call at 2 a.m. with a blown-out transom after a storm, a live person answers. No call center. No ticket number. A neighbor you can call at 2 a.m., and someone will actually answer.
If your Therma-Tru shaped window is beyond saving, we’re authorized installers for PGT, CGI, CWS, and ES Windows, so we can offer you real alternatives rather than pushing whatever’s on the shelf. Upfront pricing, fixed quotes, no surprises on the invoice. Impact-rated. Energy-certified. Done right the first time, or we come back. That’s the Done Right Promise, and it means exactly what it says. My name is on the truck. That means I stand behind every window and door we touch.
FAQs
Yes. If your Therma-Tru geometric window job requires a permit in Miami-Dade County, we pull it, schedule the inspection, and make sure it passes before we consider the job done. Call (850) 721-1218 and we’ll tell you whether your specific opening needs one.
It depends on the component and your warranty status. For glass-only reglazes, aftermarket curved spacers and desiccants don’t affect the frame warranty because we’re not touching the frame. For structural parts like sashes and hinges, we recommend OEM whenever your warranty is still active. We’ll walk you through it line by line before you decide.
Three to five weeks is typical from template to install. Custom curved and angled Therma-Tru units are fabricated to order, not stocked. If you’re in a bind after storm damage, call (850) 721-1218 and we’ll board up the opening the same day and get the replacement moving. Emergency board-up is something we handle regularly in Westchester.
Often yes. We identify the series on-site and source the same or a compatible retrofit unit. If the exact series is discontinued, we’ll match the glass profile and sightlines as closely as physically possible and tell you exactly what the difference will look like before you approve anything.
Absolutely. Bring us any written estimate from another contractor and we’ll give you a free second opinion, no strings. If another company said your curved window needs full replacement and it doesn’t, we’ll tell you. Call (850) 721-1218 and ask for Ed.
Written by Ed Winslow, Owner, Winslow Windows & Doors at Winslow Windows & Doors, serving Westchester and nearby areas.
Six Reasons Homeowners Choose Winslow Windows & Doors
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.








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