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Therma-Tru Custom & Geometric Windows in Westchester: What to Know First
We install and service Therma-Tru custom and geometric windows throughout Westchester, from arched transoms over entry doors to oversized trapezoid openings in mid-century ranches. Most custom Therma-Tru window projects in Westchester run two to four weeks from measurements to installation, and honest pricing starts with a free in-home assessment rather than a phone estimate we’ll have to revise later. As an independent Therma-Tru service provider, we’re not tied to factory pricing or corporate install schedules.
If you own a Westchester home with a Therma-Tru shaped window that’s fogged, sticky, or leaking, this page tells you what’s actually going on and what a proper fix looks like. Call (863) 251-5864 for a free estimate, or read on to understand your options before anyone shows up with a clipboard.
How Therma-Tru Products Fail - and How We Fix Them
Therma-Tru built its name on entry doors, but their window lines, especially the custom and geometric pieces, have their own failure patterns we see repeatedly across Westchester. Here’s what we actually find in the field:
- Arched top sash separation on Therma-Tru Signature Series units. The glazing bead on curved sections doesn’t always seat tightly after a few South Florida heat cycles, and that gap lets humid air into the insulated glass. We pull the sash, re-bed the curved bead with fresh sealant, and re-clamp it to factory tolerance. No glass replacement needed in most cases.
- Fogging between panes on geometric fixed units. Therma-Tru’s fixed custom shapes (half-rounds, ovals, octagons) rely on a perimeter seal that takes direct afternoon sun on west-facing Westchester homes. When that seal degrades, moisture shows up inside the glass. We replace the insulated glass unit (IGU) with a new one cut to the exact radius or angle, which costs less than most homeowners expect.
- Sticky operation on Therma-Tru casement and awning windows that flank custom openings. The operator hardware Therma-Tru uses is solid, but coastal humidity and years of salt-tinged air along the Palmetto corridor gum up the track. We strip, clean, and re-lubricate the operator, and if the crank gear is stripped, we replace it. Fifteen minutes on site beats a whole new sash.
- Rot at the sill joint on trapezoid windows under second-story eaves. Westchester’s older ranch homes often have custom Therma-Tru shapes set into framing that predates modern flashing. Water wicks up through the sill joint and sits there. We remove the unit, repair or sister the rough sill, lay down fresh flashing tape, and reset the window with a proper slope away from the house.
- Failed weatherstripping along the strike edge of Therma-Tru side-lite panels. The compression gasket on tall narrow sidelites hardens and flattens after a decade, letting drafts through in winter and AC escape in summer. Replacing the gasket is quick and inexpensive, and it restores the original seal without touching the glass.
Our Therma-Tru Custom & Geometric Windows Process
Every Therma-Tru job we take in Westchester follows the same path, because doing it in a different order is how mistakes get made on shaped glass:
- 1
We measure the rough opening and the existing sash independently. Custom geometric windows rarely come out at the size the original builder wrote down. We don’t trust old paperwork, and we don’t want you paying for a unit that was ordered three-eighths of an inch wrong.
- 2
We identify the exact Therma-Tru model and whether parts are still available. Some older Therma-Tru window lines have been discontinued, which changes the math on repair versus replace. We’ll tell you straight which one makes sense before you spend a cent.
- 3
We price the job with a written line-item estimate. You’ll see the parts cost, the labor, and the total. No change orders, no “we found rot” surprises halfway through unless something is genuinely hidden inside the wall.
- 4
We do the work with background-checked, uniformed technicians. You know who’s in your house before the truck arrives. Ed Winslow’s crew treats your Westchester home like it’s their own.
- 5
We test the window for seal, operation, and water resistance. A hose test on exterior joints, a feel test on the sash movement, and a visual confirmation that the glass sits square in the frame.
- 6
We walk you through what we did and leave the job site clean. Then we back the whole thing with the 36500-Day Done Right Promise. If it’s not done right, we make it right. That’s Ed’s name on the work.
What Therma-Tru Custom & Geometric Windows Costs in Westchester
Here are real numbers for the Therma-Tru work we do most in Westchester:
| Job | Typical Range |
|---|---|
| Custom geometric window (I think) | |
| Insulated glass unit replacement for a fogged fixed shape | $280-$650 per unit |
| Operator hardware repair or replacement | $95-$240 |
| Weatherstripping and gasket replacement | $75-$190 per window |
| Full removal and re-installation with new flashing | $480-$1,100 depending on access and framing condition |
What moves the price: whether the unit is reachable from a ladder or requires scaffolding, whether the original Therma-Tru model still has parts support, and whether the surrounding framing needs repair. Call (863) 251-5864 for an exact quote. Estimates are free, and we’ll give you a written number before any work starts.
Why Westchester Homeowners Call Winslow Windows & Doors for Therma-Tru Work
We’ve been doing this since 2011, and Ed Winslow has been measuring and installing windows across Miami-Dade for the better part of two decades. He learned the trade through Miami Dade College’s Building Construction Technology program, then spent years in the field before putting his own name on the truck. That’s why the crew that shows up to your Westchester home is the same crew Ed trained, and the person answering the phone at 2 a.m. is a live human being, not a call center.
We’re an authorized installer for eight premium brands, including PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. That matters when a custom Therma-Tru window can’t be saved and we need to spec a replacement from a brand that actually matches your elevation and your budget. No ticket numbers. No runaround. Just Ed’s word and a 36500-Day Done Right Promise that outlasts every national warranty you’ve ever read.
Proudly serving Westchester and nearby Miami-Dade communities. Licensed, insured, and locally owned, with a published address and license number. Upfront pricing, no surprises on the invoice. My name’s on the business. That means the job doesn’t end when we pull out of your driveway.
FAQs
In most cases, no. Independent repair work that uses OEM-spec parts and doesn’t alter the frame or glass doesn’t void Therma-Tru’s warranty. We’re careful about this, because we’ve seen third-party fixes that do void coverage. Call (863) 251-5864 and we’ll tell you before we touch anything.
Yes. We measure the existing opening and order a replacement to fit from one of our authorized brands (Therma-Tru, PGT, CGI, CWS, ES Windows among them). Custom shapes take longer to fabricate, but we’ll give you an honest timeline and a fixed price before you commit.
Most insulated glass unit replacements in Westchester take two to three weeks from order to install, depending on the shape and whether it’s a stock or custom cut. We’ll button up the opening as needed while the new unit is in production. Call (863) 251-5864 for a specific timeline on your window.
It depends on the age of the unit and whether the frame is still sound. If the frame shows no rot and the geometry is still square, replacing the IGU costs less than a full window replacement and restores the seal. If the frame is failing and the model is discontinued, replacement from a current brand is the honest answer. We’ll show you both numbers and let you decide.
Yes. Estimates are free, written, and line-itemed, with no trip charge inside our home county. Call (863) 251-5864 and a live person will schedule your assessment.
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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