Therma-Tru Impact Windows Nationwide | Winslow Windows & Doors

Therma-Tru Impact Windows in Fort Lauderdale: What to Know First

We install and service Therma-Tru impact windows in Fort Lauderdale as an independent Therma-Tru service provider, and most standard replacements or repairs are completed within three to five business days once parts arrive. Honest pricing is our default: a typical Therma-Tru impact window replacement in Fort Lauderdale runs between $850 and $1,900 per opening for the glass and frame work, depending on size and series, and you’ll get a written line-item estimate before we start. Never a vague number. If you own a Therma-Tru door or window and need impact-rated glass that actually passes inspection, we’re the crew that answers. Call (904) 913-5886 and you’ll talk to a live person, not a menu.

Call (904) 913-5886

This page is for Fort Lauderdale homeowners who already have Therma-Tru products, or who are considering them, and want to know what it really takes to keep them storm-ready in a salt-air climate that punishes shortcuts.

How Therma-Tru Products Fail in Fort Lauderdale and How We Fix Them

Therma-Tru builds a solid door, there’s no argument there. But Fort Lauderdale has a way of finding the weak points in anything that faces the Atlantic. After more than a decade of service calls between Las Olas and Victoria Park, here’s what we actually see on Therma-Tru impact window and door failures:

• Slim-Line and Slim-Line Impact series: seal fatigue at the glass-to-frame joint. Fort Lauderdale’s constant humidity plus salt spray works its way into the glazing bead, and over five to seven years the seal starts to lift. You’ll notice fogging between panes or a faint rattle on windy days. We pull the sash, clean the channel, and re-glaze with a marine-grade sealant rated for South Florida UV exposure. Patch jobs with hardware-store caulk fail in a season.
• Classic-Craft and Fiber-Classic door slabs with impact glass: sweep and threshold failures after storm-driven rain. These doors take horizontal rain at the base, and the factory sweep wears unevenly on the latch side. Water gets driven up under the threshold cap. We replace the sweep with a dual-fin model and bed the threshold in polyurethane sealant, which holds up far better than silicone in salt air.
• Frame racking on second-story Therma-Tru units in older Fort Lauderdale wood-frame homes. Houses built before the mid-1990s in neighborhoods like Riverside Park and Sailboat Bend shift with seasonal moisture. A Therma-Tru impact window doesn’t flex; the frame around it does. You’ll see a hairline gap at the top corner, usually on the prevailing wind side. We shim and anchor the frame back to true before resealing, because sealing over a racked frame just moves the leak down the wall.
• Multi-point lock alignment on Therma-Tru hinged patio doors. The roller bar drifts out of adjustment, and the door still closes but the top or bottom lock point doesn’t fully engage, which means your impact rating means nothing when the building inspector checks after a storm. We realign the gear box and adjust each lock point individually, then test for full-throw engagement on all points, not just the middle one.
• Pultruded fiberglass stress cracks at the corners of Therma-Tru fixed transom windows. This one surprises homeowners, but it’s common in Fort Lauderdale installations where the builder set the transom too tight against a concrete lintel. Thermal expansion under full afternoon sun builds stress, and micro-cracks form at the top corners. If caught early, we can route and fill. If it’s spread, we recommend replacement with a properly sized unit, which works out cheaper than chasing cracks every other year.

Our Therma-Tru Impact Windows Process

Here’s how a Therma-Tru job goes at Winslow Windows & Doors, from first call to final walkthrough:

1. 1
   We answer the phone. You describe the issue. If it sounds structural or safety-related, we’ll ask a few questions to figure out whether you need same-day attention or a scheduled service visit. Either way, a real person listens.
2. 2
   On-site diagnostics. A background-checked, uniformed technician arrives, identifies the specific Therma-Tru series you have (the series name is stamped inside the frame channel on most units, which saves a lot of guesswork), and measures everything.
3. 3
   Parts decision. If it’s under Therma-Tru’s warranty, we work with OEM parts. If not, we walk you through the trade-off: OEM is pricier and sometimes takes longer to source, but quality aftermarket options exist for common series like Slim-Line that have been around long enough to have solid third-party support. We present both, in writing, with lead times.
4. 4
   The work. We remove the old unit or repair the existing one, prep the opening properly (which is where most Fort Lauderdale installs go wrong; salt-scoured concrete needs real cleaning before any sealant touches it), set the window, flash it, and seal it. No shortcuts.
5. 5
   Test and verify. We cycle every operable sash, check lock engagement, spray-test the exterior if water intrusion was the concern, and clean up. The work isn’t done until you can walk up and see that it’s done right.
6. 6
   Done Right Promise. Every Therma-Tru job gets the 36500-Day Done Right Promise. If it’s not done right, Ed’s name is on the door, and we come back and make it right. That’s a century-long standard, written down.

What Therma-Tru Impact Windows Costs in Fort Lauderdale

Straight numbers, because that’s what you actually came for. A standard Therma-Tru impact window replacement in Fort Lauderdale, for a common 36-by-60-inch opening, runs $850 to $1,300 installed for the Slim-Line series. Larger fixed units or transoms with custom sizing run $1,400 to $1,900. Full door slab replacements with impact glass on Classic-Craft models start around $2,200 and go up from there depending on hardware and finish.

What moves the price: opening size, whether the existing frame is reusable or needs full replacement, second-story access, and which series you have. Slim-Line is the easiest to service; Fiber-Classic and Classic-Craft doors involve more labor because the slabs are heavier and hardware needs realignment. Every quote is written and line-itemed before work starts, and we honor the number on the page. Call (904) 913-5886 to schedule your free estimate. No charge and no games.

Why Fort Lauderdale Homeowners Call Winslow Windows & Doors for Therma-Tru Work

Ed Winslow started this company in 2011, and his name is on the door, literally. That’s not a marketing line; it changes how every single job gets finished. My name’s on the door, literally. That means it gets done right. We’re a Fort Lauderdale-area neighbor, not a chain, and we’ve been answering our own phone, 24/7, since the first truck pulled out.

We’re an authorized installer for eight premium brands, Therma-Tru, PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, and ViewLux, which matters more than it sounds like. If your Therma-Tru unit can’t be saved and a different brand is the better financial call for your specific opening, we’ll tell you that, and we’ll install it with the same care. No brand loyalty that costs you money. Upfront pricing, background-checked techs in uniform, and a published address with a license number. The one down the road, that’s us.

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