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Therma-Tru Impact Windows in Fort Lauderdale: What to Know First
We install and service Therma-Tru impact windows throughout Fort Lauderdale as an independent Therma-Tru service provider. Most single-unit replacements take one day on site, and full-home Therma-Tru impact window retrofits in neighborhoods like Victoria Park, Rio Vista, and Coral Ridge typically run three to five working days depending on opening count. Pricing is straightforward: you’ll get a written line-item quote before any work begins, and that number does not move once we start.
If you own Therma-Tru doors or windows and need impact-rated replacements or repairs, call (904) 747-8989. A live person answers, not a voicemail tree.
Key takeaways:
- We are an independent Therma-Tru service provider, not a factory-authorized dealer, so we can use OEM or quality aftermarket parts based on what actually serves your home and budget.
- Every Therma-Tru impact window job in Fort Lauderdale comes with the 36500-Day Done Right Promise: if it’s not done right, we make it right.
- Free estimates, written line-item quotes, and no trip charge inside Broward County.
How Therma-Tru Products Fail - and How We Fix Them
Therma-Tru makes a solid door, but their window lines have specific failure patterns in South Florida’s salt air and humidity. Here’s what we see on Fort Lauderdale homes, and what we do about it.
- Therma-Tru Classic Series casements: weep-hole clogging from wind-driven sand and salt crust. Homes east of Federal Highway get hammered by salt spray. The weep slots on Classic Series frames clog, water pools in the track, and the hardware corrodes from the inside. We pull the sash, clean or ream the weeps, inspect the glazing bead, and replace any pitted rollers or hinges. If the frame is too far gone, we recommend a full impact-rated replacement.
- Therma-Tru Smooth-Star patio door glazing and impact conversion. Smooth-Star was built as an entry door line, and many Fort Lauderdale homes have the matching patio units. The factory glass is not impact rated. When a storm is coming or an insurance carrier demands the upgrade, we measure the existing frame and install code-compliant impact glazing packs that meet Miami-Dade and Broward pressure requirements. Not every Smooth-Star frame can accept impact glazing; we tell you honestly if a replacement makes more sense.
- Therma-Tru sliding window roller wear in older beachside buildings. The multi-story condos along Galt Ocean Mile and Harbor Beach often have original Therma-Tru sliders, and the nylon rollers grind down fast in sandy conditions. Homeowners hear a gritty, grinding sound when sliding the sash. We replace the rollers with aftermarket stainless-steel-bearing units that outlast the OEM nylon parts, then re-align the track. This one fix often saves a $900+ sash replacement.
- Frame seal failure where the exterior trim meets the rough opening. We regularly see Therma-Tru window frames where the original install used builder-grade caulk that hardens and separates in the Fort Lauderdale sun. Water gets behind the nailing flange, and the homeowner doesn’t notice until the drywall inside the window return starts staining. We remove the old sealant, inspect for rot in the rough opening, and re-seal with a marine-grade polyurethane that flexes with the thermal expansion of the frame.
- Therma-Tru swing-door threshold wear and the impact-rating question. Fort Lauderdale homes built pre-2001 often have Therma-Tru entry doors that are not impact rated. The threshold wears and the sweep fails, and that’s the moment a homeowner asks about upgrading to an impact-rated unit. We replace the threshold, install a new sweep, and if the owner wants impact protection, we install an impact-rated Therma-Tru or PGT replacement door and frame that meets current Florida Building Code.
Our Therma-Tru Impact Windows Process
Here’s what a Therma-Tru impact window job with us looks like from the first call to the final walkthrough.
- 1
You call (904) 747-8989. A live person answers, day or night. We ask what you’re seeing, when it started, and whether you have an insurance deadline or an HOA requirement pushing the timeline. We schedule a free in-home evaluation.
- 2
We measure and diagnose. Ed Winslow or a senior tech checks the existing Therma-Tru frames, the rough openings, the flashing, and the interior wall condition. We’re looking for the real cause, not just symptom-chasing.
- 3
You get a written line-item quote. We price the job with OEM Therma-Tru parts where they matter for warranty, and quality aftermarket where they perform better or save you real money. The quote lists every line: materials, labor, disposal, permits if required. No vague allowances.
- 4
We do the work. Background-checked, uniformed technicians arrive on time. We protect your floors, remove the old units carefully, repair any hidden framing or flashing issues, and install the impact windows to Broward County and Florida Building Code standards.
- 5
We test and clean up. Every window is operated, sealed, and checked for plumb and square. We haul the old units away. The site is cleaner than we found it.
- 6
We stand behind it. If anything inside the scope of our work isn’t right, the 36500-Day Done Right Promise means we come back and fix it. No argument, no ticket number.
What Therma-Tru Impact Windows Costs in Fort Lauderdale
Honest price ranges for the Therma-Tru work we do in Fort Lauderdale, based on actual jobs we’ve completed in the last two years:
- Single Therma-Tru impact window replacement (standard aluminum or vinyl frame): $900-$2,400, installed
- Impact glazing pack for an existing Therma-Tru frame (when the frame is sound): $450-$1,100 per opening
- Therma-Tru impact-rated entry door with frame replacement: $3,200-$6,800, installed
- Full-home Therma-Tru impact window retrofit (8-12 openings): $9,500-$28,000 depending on window size, frame material, and structural condition
- Roller, hinge, or weep-hole repair on a Therma-Tru window: $175-$520 per opening
What moves the price: the age of the rough opening and whether hidden rot or water damage needs repair, the size of the unit (the big fixed picture windows common in mid-century Fort Lauderdale ranches cost more), whether HOA or historic district rules require specific frame finishes, and permit fees. If you have a written estimate from another company, we’ll give you a free second opinion. Call (904) 747-8989 for your exact quote.
Why Fort Lauderdale Homeowners Call Winslow Windows & Doors for Therma-Tru Work
Ed Winslow put his name on this company in 2011, and that’s not a marketing line. It means the person who owns the business is the same person accountable for every Therma-Tru window we install in Fort Lauderdale. My name’s on the truck. That’s the only guarantee you need.
The 36500-Day Done Right Promise sits behind every job: if it’s not done right, we come back and make it right. No fine print, no expiration date. That’s a century-long standard of accountability. We’re also an authorized installer for PGT, CGI, CWS, and ES Windows, so if a Therma-Tru impact window replacement leads us to recommend a different brand for structural or budget reasons, we can show you real options from elite manufacturers, not just whatever’s left in a warehouse. Every technician who knocks on your door is background-checked and in uniform. You’ll know exactly who’s at your house before the truck pulls up. And when you call at 2 a.m. because a window failed during a storm, a live person answers. The one down the road, not a call center in another state.
FAQs
Replacing a Therma-Tru product with a new impact-rated unit does not void any remaining warranty on the existing product, because that warranty is tied to the original installed unit, not to future work on the opening. If you’re repairing a Therma-Tru window still under warranty, we use OEM parts where the warranty requires them, and we document the repair so you have a paper trail. For full replacements, the new impact window carries its own manufacturer warranty plus our 36500-Day Done Right Promise. Call (904) 747-8989 and we’ll walk you through what your specific Therma-Tru product warranty covers.
Sometimes, yes. If the frame is structurally sound, square, and free of hidden rot, we can install a code-compliant impact glazing pack directly into the existing Therma-Tru frame. This typically runs $450-$1,100 per opening and is a significant savings over full replacement. But older frames, especially those with salt corrosion or water intrusion, won’t hold an impact glazing pack reliably. We’ll tell you honestly which route gives you real impact protection for your money. Call (904) 747-8989 to schedule a free in-home evaluation.
Standard Therma-Tru impact window replacements are usually installed within one to two weeks after your written approval, depending on part availability and whether permits are required. Full-home retrofits typically take three to five working days on site once materials arrive. If you’re up against an insurance deadline or an HOA compliance notice, call us at (904) 747-8989 and we’ll give you a realistic timeline based on what you actually need, not a sales pitch.
Yes. Impact window and door installations in Broward County require permits and inspections, and we pull the permits, schedule the inspections, and don’t consider the job done until it passes. A window that’s installed without a permit puts your insurance claim at risk after a storm. Call (904) 747-8989 for a free estimate that includes permit costs, line by line.
That depends on the condition of the frame and what you need the window to do. A Therma-Tru window with a failed roller, clogged weep hole, or worn sweep can often be repaired for a few hundred dollars. But if the frame is corroded, out of square, or doesn’t meet current impact standards for your zone, replacement is the honest answer and often the better long-term investment. We’ll give you both options in writing when we evaluate your home. Call (904) 747-8989 and a live person will set it up.
Written by Ed Winslow, Owner, Winslow Windows & Doors at Winslow Windows & Doors, serving Fort Lauderdale 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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