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AfterTherma-Tru Custom & Geometric Windows in Miami: What to Know First
We repair, rebuild, and replace Therma-Tru custom and geometric windows throughout Miami as an independent Therma-Tru service provider, not a manufacturer-authorized shop. Most jobs run two to three weeks from first measurement to finished install, depending on whether we’re restoring an existing unit or building a new custom shape. Pricing lands between $850 and $4,200 for the majority of single-opening work we do in Miami, and you’ll get a written line-item quote before anything gets ordered. If you own a Therma-Tru radius window that’s fogged, a geometric picture window with a failing seal, or an arched entry unit that leaks during hurricane season, call (561) 489-4036 and we’ll walk you through what’s actually happening.
Key Takeaways
- We’re independent, not factory: That means we can quote OEM Therma-Tru parts side by side with proven aftermarket alternatives and tell you honestly which one we’d put in our own house.
- Custom shapes are our daily work: Arches, circles, hexagons, ovals, trapezoids, oversized picture windows with radius tops. If it’s not a stock rectangle, we’ve likely built or repaired one in a Miami home this year.
- Warranties in writing: Both manufacturer warranty layers registered before the truck leaves the driveway, backed by our 90-Day Done Right Promise.
How Therma-Tru Products Fail - and How We Fix Them
Therma-Tru is known more for entry and patio doors, but the window units that carry the brand name show up regularly in Florida homes, often as part of a matching package installed with a Therma-Tru door system. Their custom and geometric shapes have specific failure patterns we see often enough to know where to look first.
- Fogged glass on radius and arched units. Therma-Tru shaped windows often use dual-pane insulated glass with a flexible spacer. In Miami’s humidity, a seal that starts to weep at the curved edge fills the unit with condensation within a season or two. We remove the sash or IG unit, measure the exact radius, and order a replacement that matches the curve, not a close approximation. A close enough shape is why a lot of fogged-replacement work fails twice.
- White vinyl geometric windows yellowing and warping. Some Miami homes carry Therma-Tru vinyl units from the mid-2000s that were not formulated for the UV load of a south-facing elevation. We see the corners of hexagon and octagon frames pulling apart, opening the seal line to driving rain. Our fix is a full-frame replacement with a thermally stable material, not a caulk patch that buys six months.
- Rotted wood frames on older Therma-Tru shaped windows. Therma-Tru built a line of wood geometric windows in the late 1990s and early 2000s that is still present in older Miami neighborhoods like Shenandoah and Morningside. The sill and lower curved molding are first to go, fed by sprinkler overspray and coastal salt air. We cut out the rot, match the profile, and rebuild the frame in place where the structure allows, or we order a new custom unit that carries a modern warranty.
- Rollers and operator hardware going stiff on operable shaped windows. Therma-Tru casement and awning windows in non-square shapes stress their hardware shafts over time because the panel’s weight distribution is uneven. We replace the arm and hinge assembly with hardware rated for the panel weight, and we correct any racking that caused the wear in the first place. Just swapping the arm without squaring the frame is a one-year temporary fix.
- Flashing failures around geometric openings. On shaped windows, the top curve is the leak point. We find original installs where the flashing was cut square behind a half-round unit, leaving a small but persistent path for water into the wall cavity. In Miami, where afternoon thunderstorms saturate a wall in minutes, that small path becomes rot inside the header. We pull the unit, flash the rough opening properly to match the geometry, and reset it. This is one of the things Dale Kessler checks first on a heavy-frame custom shape: the rough opening tells him more than the window does.
Our Therma-Tru Custom & Geometric Windows Process
We don’t guess at shapes. Every Therma-Tru custom job follows the same sequence, and we put every step in writing before we start.
- 1
Inspection and measurement. A background-checked, uniformed technician measures every opening twice, including the diagonal corner-to-corner check on non-square shapes. For radius units, we take a template of the exact curve. If there’s hidden water damage, we find it now, not after the drywall’s off.
- 2
Written quote with options. You’ll get the quote on paper, including whether we’re recommending an OEM Therma-Tru part, a better aftermarket component, or a full replacement. We also show you comparable manufacturers side by side, PGT, CGI, CWS, ES Windows included, so you understand what you’re paying for.
- 3
Parts ordering and lead time confirmation. Custom shapes mean custom lead times, sometimes four to six weeks out of the glass plant. We tell you the honest date up front. “Measure twice, order once, and put everything in writing” is how we work.
- 4
Removal and preparation. We pull the old unit, inspect the rough opening for rot or racking, flash it to match the new geometry, and prepare the opening for a true set.
- 5
Installation and sealing. The new or rebuilt unit is set square, shimmed properly so the operating hardware doesn’t bind, and sealed with products matched to the frame material and Miami’s heat and salt exposure.
- 6
Warranty registration and test. Both manufacturer warranty layers are registered in writing before our truck leaves your driveway. The unit is operated through its full range, all seals are inspected visually, and the surrounding interior is cleaned up. If we see anything we don’t like, we say so.
What Therma-Tru Custom & Geometric Windows Costs in Miami
A Therma-Tru custom window job in Miami typically runs between $850 and $4,200 for a single opening, depending on size, shape complexity, frame material, and whether you’re replacing glass only or the entire unit.
- Glass replacement only, standard shaped unit: $650 to $1,400 installed
- Hardware rebuild on an operable shaped window: $250 to $650 per window
- Full-frame replacement, standard geometric shape (octagon, half-round): $1,200 to $3,000 installed
- Full-frame replacement, large curved or arched unit: $2,500 to $4,500 or more, driven by the radius and glass package
What moves the price: impact-rated glass, low-E or laminated options, frame material (wood rebuilds cost more than vinyl), opening size, and whether the rough opening needs structural correction before we set the new unit. A rotten header doubles the labor, and we won’t quote around it to win the job and then surprise you with a change order. The number on the paper is the number on the invoice. Call (561) 489-4036 for a free estimate on your Therma-Tru custom or geometric window work.
Why Miami Homeowners Call TruePane Windows & Doors for Therma-Tru Work
TruePane has served South Florida homeowners for over 42 years through a heritage of glazing craft that started with Dale Kessler’s father in a two-bay shop in Columbus, Ohio, and that Dale has carried into Miami through the company he founded in 2008. We treat every Therma-Tru job like the homeowner is going to leave us their house key and go out of town, because sometimes that’s exactly what happens. You get a written quote, a stated duration, both warranty layers registered, and our 90-Day Done Right Promise: if it is not done right, we make it right. No paperwork fights, no arguing. When a Therma-Tru unit can’t be saved, we’re authorized installers for more than a dozen lines, including PGT, CGI, CWS, and ES Windows, so you’re not boxed into one manufacturer’s catalog. It’s a square deal, and we stand behind it.
FAQs
No. We are an independent Therma-Tru service provider, not a factory-authorized dealer. That means we can repair and rebuild your existing Therma-Tru units honestly, quote both OEM and quality aftermarket parts, and recommend a different brand when the numbers don’t favor another Therma-Tru product. You get the truth, not a sales pitch. Call (561) 489-4036 to talk it through.
Replacing the insulated glass in a fogged Therma-Tru arched window in Miami typically runs $850 to $1,600, installed, depending on the unit’s size and radius. If the sash or frame has warped and the entire window needs replacement, budget $1,800 to $3,500 for a standard arched opening. We’ll give you an exact number before any work starts. Estimates are free.
Yes. We template the exact radius or angle profile of your current unit before ordering, so the replacement matches the opening and the look of the house. We don’t order “close enough” shapes and shim the difference, because on a half-round or oval, the gap always shows. Call (561) 489-4036 and we’ll measure it right the first time.
It depends on the age of the unit and the work being done. We register both manufacturer warranty layers in writing on every job, and we document all parts used so there’s a clear paper trail if a claim ever comes up. We’ll walk you through your specific warranty status before we touch the window, and we won’t perform a repair that we know compromises your coverage without telling you first.
Most custom and geometric Therma-Tru window jobs in Miami take two to three weeks from the day we order parts to the day we install, but complex curved-glass orders can run longer, sometimes four to six weeks from the glass plant. We give you the real lead time on the quote, and then we’ll be there when we say. Call (561) 489-4036 for a schedule that’s based on the actual window, not on what sounds good over the phone.
If your Therma-Tru custom or geometric window is fogged, binding, leaking, or just showing its age, call TruePane Windows & Doors at (561) 489-4036. We’ll send a technician who knows these windows, measure everything twice, and give you a written quote you can hold us to. Free estimates, a live person on the phone, and a company that plans to be in Miami thirty years from now.
Written by Dale Kessler, Owner, TruePane Windows & Doors at TruePane Windows & Doors, serving Miami and nearby areas.
Six Reasons Homeowners Choose TruePane 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.