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Therma-Tru Custom & Geometric Windows in Miami: What to Know First
We install, repair, and replace Therma-Tru custom and geometric windows throughout Miami, including arched, radius, oval, trapezoid, and oversized openings. Most custom-shape Therma-Tru jobs run one to three weeks from template to install here in Miami-Dade, with the honest price posture being this: shaped glass costs real money, but you should never pay for a full replacement when a reglaze or sash rebuild fixes the problem. If you own a Therma-Tru door with sidelites, a transom, or a geometric accent window that’s fogged, cracked, or leaking, this page is for you. Call (863) 946-5039 and a real person answers, day or night.
How Therma-Tru Products Fail, and How We Fix Them
Therma-Tru builds a solid door, but the glass packages around those doors and the custom window shapes in Miami homes have failure patterns we see over and over. Here’s what actually goes wrong:
- Seal failure on Therma-Tru accent glass and transoms. The insulated glass units (IGUs) on Therma-Tru doors, especially the Classic-Craft and Fiber-Classic lines, rely on a desiccant-filled spacer to stay clear. Miami’s humidity works that seal hard, and once it fails, fog settles between the panes. We replace the IGU with an OEM-spec unit sized to the exact radius or angle, so the fog’s gone and it stays gone.
- Arched and radius frames pulling away at the springline. On geometric windows and arched transoms, the curve meets the straight section at what’s called the springline. Therma-Tru’s fiberglass frames are rigid, and in older Miami homes with settlement or wind-driven movement, that joint is where water sneaks in. We re-bed the frame, re-seal the springline, and re-anchor the flange so water stops riding the curve into your wall.
- Oval and ellipse windows with wrong aftermarket glass. We’ve walked into Miami homes where someone “fixed” an oval Therma-Tru window with a generic flat-cut unit that didn’t follow the true curve. The result is stress cracks at the edges. Therma-Tru’s geometric shapes are radiused to specific tolerances, and the glass has to be cut to match. We template every curve on site, never by photo or rough measurement.
- Sidelite rot at the sill on Therma-Tru Smooth-Star doors. The Smooth-Star line is fiberglass, but the sub-sill and trim kits around sidelites are often composite or wood-reinforced. Miami’s wet season and irrigation overspray eat those sills. We rebuild the sill pan with rot-proof material and replace the weatherstripping so the sidelite seats dry and stays dry.
- Hardware misalignment on heavy geometric units. A large half-round or eyebrow window is heavy, and over time the sash or hinge hardware on Therma-Tru units can drift. Symptoms: the window doesn’t seat fully, the lock won’t engage, or one corner sags by an eighth of an inch. We re-hang, re-shim, and re-balance the unit, then adjust the locking points so it closes like it did the day it was installed.
Our Therma-Tru Custom & Geometric Windows Process
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Call and talk to a person. You reach us at (863) 946-5039. We ask what you’re seeing, what shape the window is, and whether water or fog is involved. No ticket numbers, no “someone will call you back.”
- 2
On-site measurement and inspection. Ed or one of our background-checked techs comes out, templates the exact curve or angle, and checks the frame, flashing, and sill for hidden damage. If it’s an arched unit, we’re on a ladder checking the springline.
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Straight-up options and pricing. We tell you what OEM Therma-Tru parts cost, what a quality aftermarket equivalent saves you, and whether a repair beats a replacement. Written line-item quote, no surprises later.
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The work. For a reglaze or IGU swap, most jobs are done in a day. For a full custom geometric replacement, we order the glass, keep you posted, and install when it’s in. Uniformed techs, drop cloths down, worksite clean at the end.
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We test it in front of you. Lock points, seal lines, drainage weep holes. If it’s impact-rated, we check the anchoring. If it doesn’t pass, it doesn’t get left behind.
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The 36500-Day Done Right Promise. If something’s not right, we come back and make it right. That’s Ed’s word, and it’s been on every job since 2011.
What Therma-Tru Custom & Geometric Windows Costs in Miami
Here’s what we see for real numbers in Miami for Therma-Tru custom and geometric work:
- IGU replacement on a Therma-Tru transom or sidelite - $280 to $550, depending on glass size and whether it’s tempered or impact-rated.
- Full reglaze on a half-round or elliptical Therma-Tru window - $400 to $900. The curve drives the glass cost; a true radius cut runs more than a flat rectangle.
- Complete custom geometric replacement, including frame work - $1,200 to $3,800. Oversized and impact-rated shapes land on the higher end, and Miami’s wind load requirements mean laminated glass is often non-negotiable.
- Sill and frame rebuild around a Therma-Tru sidelite - $350 to $700. We always quote this as a separate line item so you see exactly where the money goes.
What moves the price: the radius tightness, whether the unit is impact-rated, and whether the frame needs structural repair once the old glass comes out. Call (863) 946-5039 for a free estimate. We’ll give you a written number, not a ballpark guess.
Why Miami Homeowners Call Winslow Windows & Doors for Therma-Tru Work
We’ve been doing this in Miami since 2011, and Ed Winslow grew up in Hialeah, where a summer storm off the Everglades could turn a bad window into a flooded living room before dinner. That’s why every Therma-Tru job we take gets treated like it’s on our own house. The 36500-Day Done Right Promise isn’t marketing; it’s a century-length standard that says if it’s not done right, we make it right. We’re also authorized installers for PGT, CGI, CWS, and ES Windows, so if your Therma-Tru job turns into a conversation about impact glass or a different brand, we give you honest advice without a sales script. Upfront pricing, background-checked techs in uniform, and a live voice on the phone at 2 a.m. That’s the whole offer.
FAQs
Yes. We template every radius, ellipse, and eyebrow on site with the glass shop specs Therma-Tru’s own geometry requires. A half-round window is not one standard radius; it depends on the unit. We measure, we template, we cut to match. Call (863) 946-5039 and we’ll put eyes on it.
As an independent Therma-Tru service provider, we can’t speak for the manufacturer’s warranty terms, but we use OEM-spec IGUs and follow Therma-Tru’s installation patterns whenever we replace glass. Many of our Miami customers have warranty paperwork they want to protect, and we’re happy to talk through what we’re doing before you commit.
We stock common sizes for rectangular sidelite and transom IGUs, and we work with two local glass fabricators in Miami-Dade who cut true radius and oval shapes for Therma-Tru units. Custom geometric glass usually takes three to seven business days to come in. Standard stuff we can often do the same week.
If the frame is sound, you replace the IGU, you don’t replace the whole window. A fogged Therma-Tru unit in a solid fiberglass frame is a glass job, not a frame job, and that’s typically a $280 to $550 fix in Miami rather than a $1,500-plus replacement. We’ll tell you straight, and we’ll show you the frame condition before we leave. Call (863) 946-5039 for an exact quote.
If it’s a leaking window or a broken pane, call and we’ll get someone out. We answer the phone 24/7, and for non-custom glass emergencies we can often be on site the same day. For templated custom shapes, we work on your schedule for the measurement appointment and keep you posted on glass arrival.
Written by Ed Winslow, Owner, Winslow Windows & Doors at Winslow Windows & Doors, serving Miami 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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