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Techo-Bloc Windows & Doors: The Fort Lauderdale Owner’s Guide
Techo-Bloc windows and doors installed in Fort Lauderdale homes typically run $4,500-$15,000 for full replacement depending on opening count, impact rating, and whether the original frames are salvageable. We stock Techo-Bloc-compatible hardware, seals, and sash components for same-day repair on most configurations, and we carry the full line of impact-rated replacements for coastal code compliance. Most owners discover a problem when they notice salt-air corrosion on the locking hardware, feel drafts around the frame in July humidity, or spot condensation between impact-laminated glass layers after a storm season.
Which Techo-Bloc Models This Applies To
Techo-Bloc’s window and door catalog breaks into three series that matter for parts matching: the Coastal Impact Series (rated for HVHZ, High-Velocity Hurricane Zone), the Architect Series (thermally broken aluminum for energy efficiency), and the Landmark Series (standard-duty vinyl-clad for inland Fort Lauderdale properties). The model number is stamped on the hinge side of the frame rail, usually a 6- to 10-digit code beginning with CI-, AR-, or LM-. If the label’s worn off, measure the visible glass width and height to the nearest 1/8 inch, and note whether the frame is thermally broken (you’ll see a plastic or resin separator between interior and exterior aluminum).
OEM parts from Techo-Bloc come with a 20-year finish warranty and guaranteed impact-test documentation, which matters for resale and insurance in Broward County. Quality aftermarket equivalents exist for hardware and weatherstripping, but we don’t recommend aftermarket glass or frame extrusions, the tolerances for impact certification are too tight. In Victoria Park, we’ve seen homeowners try to match Coastal Impact hardware with generic big-box latches; the screw spacing is off by 3/16 inch, which doesn’t sound like much until the latch won’t engage and the inspector flags it.
Signs Your Techo-Bloc Windows & Doors Is Failing

- Stiff or grinding operation in the lock or crank mechanism. Salt air gets past the factory lubricant in 4-6 years in Fort Lauderdale’s coastal zones. The internal gears in Techo-Bloc’s multipoint locks are zinc alloy, they crystallize and seize if the grease dries out.
- Visible moisture or fog between glass panes. The edge seal on impact-laminated units has failed, usually from thermal cycling. Once the desiccant saturates, the glass unit is done, it cannot be resealed to factory spec.
- Frame corner gaps or sealant pulling away from the brickmold. This is the Florida sun working on the backer rod and sealant, not the frame itself. Left alone, water tracks into the rough opening and you’ll be looking at rot repair, not just sealant.
- Whistling or draft at the sash perimeter. Compression weatherstripping loses its memory in sustained heat. Techo-Bloc uses a dual-durometer bulb seal that’s replaceable, but the retainer groove profile varies by series year.
- Corrosion pitting on exterior hardware. Coastal Impact Series hardware is 316 stainless, but the Architect Series uses 304-grade on non-locking components. In Fort Lauderdale’s salt air, 304 shows surface rust in 3-4 years if not rinsed regularly.
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AfterReplacement Cost & What’s Included
For Fort Lauderdale, window replacement on a typical 3-bedroom home runs $4,500-$15,000 installed, with single-opening repairs at $300-$850 depending on whether we’re replacing a sash, a glass unit, or hardware only. The range moves with: impact rating required (HVHZ adds 30-40% over standard), frame material (thermally broken aluminum vs. vinyl-clad), and whether we find water intrusion in the rough opening once the old unit’s out.
Every quote is a flat written price with line-item breakdown: part, labor, permit, and disposal. Under Clause 1 of the Haven Standard, that price is fixed before anyone picks up a tool. Change orders happen, but never without a signature and a revised written number. Our 365-Day Done Right Promise covers the installation and the part; if the seal fails or the lock sticks, we make it right. The documented photo record from your visit goes to you by text or email before we leave the driveway.
DIY or Call Us?

There’s a short list of checks any owner can do safely: operate every lock and crank through its full range, run a lit candle slowly around the sash perimeter to find drafts, and photograph any label or stamp you can find for parts lookup. What we don’t recommend is removing a fixed sash or attempting hardware replacement on impact-rated units. The multipoint locks are under spring tension, and the impact glass is heavy, a 36-by-72 Coastal Impact sash runs 85-110 pounds. If the unit is out of plumb even slightly, which is common in Fort Lauderdale’s older Victoria Park homes, the sash can bind and crack during removal.
We’re not affiliated with Techo-Bloc, we’re an independent service provider with access to their parts distribution and the aftermarket equivalents that actually fit. If you’re not sure what you’ve got, call (754) 254-7676 and we’ll walk through the identification. Measure twice, write it down, then say it once. That’s how we scope every job.
FAQs
Coastal Impact Series units typically perform 15-20 years in Fort Lauderdale’s salt-air environment with annual hardware rinsing and seal inspection; vinyl-clad Landmark Series often sees 20-25 years inland but degrades faster within a mile of the beach. Call (754) 254-7676 for a condition assessment, estimates are free.
Hardware, weatherstripping, and sealant are repairable; failed glass seals and corroded frame corners require full sash or frame replacement because impact certification cannot be restored to a compromised unit. Call (754) 254-7676 and we’ll tell you which category you’re in.
Single-opening replacement is usually a half-day; full-home replacement runs 2-4 days depending on opening count, with permit inspection scheduled after completion. We pull the permit and coordinate inspection as part of the flat written price. Call (754) 254-7676 to schedule.
We stock multipoint lock hardware, compression seals, and sash balancers for all three series on our Fort Lauderdale service trucks; glass units and full frames are ordered to spec with 3-5 day lead time for standard sizes, 2-3 weeks for custom. Call (754) 254-7676 to confirm availability for your model.
Written by Grant Rowan, Owner, Rowan Construction Group - Fort Lauderdale, FL at Rowan Construction Group Fort Lauderdale, serving Fort Lauderdale and nearby areas.







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