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Therma-Tru Custom & Geometric Windows in West Palm Beach: What to Know First
As an independent Therma-Tru service provider in West Palm Beach, we install and repair custom and geometric Therma-Tru windows across the city, from arched transoms in El Cid to oversized trapezoid openings in Ibis. Most repair jobs on Therma-Tru custom shapes run $350-$1,400, and full geometric replacements typically land between $900 and $3,200 per opening depending on size, glass package, and framing complexity. The honest answer on turnaround: standard repairs are usually done in one visit; custom-shaped full replacements run four to seven weeks from template to install because the glass unit is fabricated to your exact radius.
This page is written for homeowners in West Palm Beach, Palm Beach Gardens, Lake Worth Beach, and the surrounding communities who own Therma-Tru windows and need someone who actually knows the product. If your arch is fogging, your radius window won’t seal, or you inherited an octagon window that’s leaking during summer storms, call us at (561) 660-9539. A live person answers, 24/7.
How Therma-Tru Products Fail - and How We Fix Them
- Fogged glass in radius and arch units (Smooth-Star and Classic-Craft lines). Therma-Tru’s shaped glass units rely on a warm-edge spacer system that doesn’t hold up well to South Florida’s humidity-and-salt-air cycle. We see West Palm Beach homes within two miles of the Intracoastal failing faster than inland properties. Once the seal goes, the only real fix is replacing the insulated glass unit (IGU), not the whole sash. We template the exact curve and order a matching IGU with the same Low-E coating and grid pattern, so it doesn’t look like a patch job.
- Sticking or seized crank mechanisms on geometric casements. Trapezoids and octagons built on Therma-Tru casement hardware develop the same failure as any casement, except the odd geometry makes misalignment worse. The original crank gears are die-cast zinc and they strip after a decade of salt air and rain exposure. We replace the operator assembly, re-shim the sash so the reveal is consistent all the way around, and re-balance the hinges. If the sash is square but the gear is shot, you don’t need a new window - you need a $90-$180 hardware rebuild.
- Water intrusion at the bottom corners of oversized trapezoids. This one is uniquely common on geometric units. When a trapezoid sits above a picture window - which is how most West Palm Beach lakefront homes are designed - the frame deflects slightly under the weight of the glass. The original sill flashing was often cut too tight to the rough opening, and once the sealant degrades, water follows the sill track right into the wall. Our fix: pull the interior trim (or exterior cladding, depending on access), re-flash the pan with a proper sloped sill, and seal the corner joints with a polyether sealant that doesn’t shrink in the Florida sun.
- Faded or chalked exterior frames on Therma-Tru fiberglass lines. Therma-Tru’s fiberglass exterior finish stands up reasonably well, but West Palm Beach UV exposure is brutal. After eight to ten years, darker frame colors on south-facing walls start to chalk and lose depth. You can’t paint-fix this the way you would wood. Depending on severity, we evaluate whether a factory-matched refinish is viable or whether the frame needs replacement. We’ll tell you straight which one your window actually needs.
- Loose glass packs in geometric frames after storms. High-wind events stress the glazing bead and corner keys on shaped windows disproportionately. After Hurricane season - especially if you’re in a windborne debris zone - homeowners find their octagon or eyebrow windows rattle or leak at the corners. We inspect the glazing bead, re-key loose corners, and re-seat the glass pack. If the frame has shifted permanently, we re-square the rough opening before anything else goes back in.
Our Therma-Tru Custom & Geometric Windows Process
- 1
You call (561) 660-9539. A live person picks up. Not a call center. We ask what’s wrong, what shape the window is, and what part of West Palm Beach you’re in. Then we schedule a time that works.
- 2
We measure and diagnose on site. For custom shapes, we’re not just checking the glass. We’re checking the reveal, the square of the rough opening, the integrity of the frame corners, and the sealant lines. If it’s a template job, we create a precise digital template of the curve or angle right then.
- 3
We walk you through OEM vs. aftermarket. For hardware and weatherstripping, OEM Therma-Tru parts keep your warranty intact. For glass units, the IGU is fabricated by a local South Florida glazier we’ve worked with for years, built to match your original glass spec. We explain the difference and let you decide.
- 4
We do the work and test as we go. Every install gets a water test at the flange, an operation cycle on the hardware, and a visual seal inspection under daylight. If it’s a replacement, we pull permits when required by West Palm Beach code.
- 5
Cleanup and a walkthrough. We leave the room cleaner than we found it. You inspect the work. We show you what we did and what to watch for in the next storm season.
- 6
The Done Right Promise kicks in. If something isn’t right, we come back. That promise doesn’t expire.
What Therma-Tru Custom & Geometric Windows Costs in West Palm Beach
Here’s the honest pricing picture for Therma-Tru custom shape work in West Palm Beach, based on jobs we’ve done in neighborhoods from Northwood Hills to South End:
| Job Type | Typical Range |
|---|---|
| Seal replacement on a fogged arch or radius IGU | $350-$700 per unit |
| Hardware rebuild (operator, hinges, re-shim) on geometric casement | $180-$450 per window |
| Re-flash and reseal a leaking trapezoid or octagon | $400-$900 depending on access |
| Full custom geometric replacement (standard Low-E, no impact) | $900-$2,100 per opening |
| Full custom geometric replacement (impact-rated glass) | $1,800-$3,200 per opening |
| Oversized arched or eyebrow window replacement | $2,500-$4,800 depending on span and glass spec |
What moves the price: whether we can repair in place or need to template a new unit, glass package (impact-rated is a significant step up), frame material, second-story access, and whether the rough opening has shifted and needs re-framing. You’ll always get a written line-item price before any work starts. No change orders, no surprises on the invoice. Call (561) 660-9539 for a free estimate - we’ll give you a real number, not a vague range.
Why West Palm Beach Homeowners Call Winslow Windows & Doors for Therma-Tru Work
We’re the one down the road. Ed Winslow grew up in Northwood Hills, and his name is on the truck - that means something. Winslow Windows & Doors has been serving West Palm Beach and the surrounding county since 2011, and we’ve never handed a customer a ticket number. Every call is answered by a live person, day or night. Every technician who shows up is background-checked and in uniform, so you know exactly who’s at your door before the truck pulls up.
We work on Therma-Tru daily, but we also install and service PGT, CGI, CWS, and ES Windows - which matters if you’re replacing one Therma-Tru geometric unit and want other openings matched in a different brand’s impact glass. We’ll help you make the right call, not push you toward whatever we have in the warehouse. Upfront pricing, a free second opinion on any written estimate, no trip charge inside Palm Beach County, and a permanent 10% discount for seniors and veterans. And behind everything: the Done Right Promise. If it’s not done right, we make it right. Period.
FAQs
Yes, in most cases. Fogged glass, failed hardware, and corner seal failures can all be fixed by replacing the specific component, not the entire window. We’ll tell you straight if a repair will buy you years or if replacement is the smarter long-term move. Call (561) 660-9539 and we’ll assess what you’ve got.
No. We’re an independent Therma-Tru service provider, so we’re not affiliated with or authorized by Therma-Tru. However, the work we do follows warranty-safe practices - meaning we use appropriate OEM parts for hardware and weatherstripping where warranty compliance matters. If your window is still under the original Therma-Tru limited warranty, we’ll tell you before work starts whether the repair falls within what Therma-Tru covers and help you understand your options.
Most custom geometric replacements take four to seven weeks from the day we template the opening to the day we install. The glass unit is fabricated to your specific radius or angle, so there’s no off-the-shelf shortcut. Repairs are usually done in one visit. Call (561) 660-9539 for a precise timeline on your specific window.
Yes. Impact-rated glass can be fabricated for arches, trapezoids, octagons, eyebrows, and oversized geometric openings. The price step is real - impact glass generally adds 50-90% to the cost of a standard custom unit - but for West Palm Beach homes in windborne debris zones, it’s often required by code and always worth considering. We’ll walk you through what’s required versus what’s optional for your specific property.
When the job requires a permit under West Palm Beach or Palm Beach County code, we pull it and we pass the inspection. We never skip the permit to save a few days - that’s how you end up with a problem when you try to sell the house. Our license number is published, our address is real, and Ed Winslow stands behind every permit we pull.
Written by Ed Winslow, Owner, Winslow Windows & Doors at Winslow Windows & Doors, serving West Palm Beach 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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