New windows and doors improve comfort, cut energy bills and add long-term value to your home. Sightline Windows & Doors Fort Lauderdale pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
1. Choose your installer
The unit is half the job - the install is the other half. Our own background-checked crews measure, set, seal and insulate every opening, and they know the lines we quote inside and out because they install them every week.
2. Select the right products
Compare styles, materials and glass packages side by side until the fit is right for your rooms, your budget and your goals. The product-line comparison below is the place to start.
3. Prepare your home for install
Before install day we walk you through a short checklist - furniture pulled back, treatments down, a clear path to each opening - so install day is watch-it-happen, not scramble.
Compare the Lines We Quote
Every project is priced on the same lines, side by side - the price indicators below are relative, and your consultant shows exact numbers on your actual openings.
PGTThe line Florida homeowners arrive naming - the most Miami-Dade certifications in the industry$$$
- More Miami-Dade NOA certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe Florida value pick$$
- Vinyl systems built in Florida for Florida codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Miami-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Therma-Tru Window Installation: The Fort Lauderdale Owner’s Guide
We stock and install Therma-Tru-compatible window units across Fort Lauderdale, with most replacement projects running $890-$2,400 per opening depending on series, glazing package, and whether the existing frame is salvageable. Same-day measured surveys are available, and we carry common Therma-Tru sash and frame configurations for coastal Florida on our trucks. Most Fort Lauderdale homeowners discover their Therma-Tru window is failing when they notice water staining the drywall beneath the sill after a summer storm, or when the lower sash won’t stay open against the weight of impact-rated laminated glass.
Which Therma-Tru Models This Applies To

Therma-Tru’s window lineup for the Florida market centers on the Impact-Resistant Series and Vented Sidelite Series, with frame profiles that differ from their national catalog. The Impact Series uses a reinforced vinyl or aluminum-clad frame with Miami-Dade NOA-compliant glazing packages, while Vented Sidelite units are typically specified as fixed or operable companion pieces for Therma-Tru entry door systems. To identify your exact model, check the etched certification mark in the glass corner for the NOA number, then match the frame depth: 3-1/4 inch for standard vinyl, 4-9/16 inch for aluminum-clad impact units.
We source OEM Therma-Tru frames and sashes through authorized distribution, but we’ve also qualified aftermarket glazing packages from Cardinal and Guardian that meet the same DP-50 and HVHZ ratings at lower cost. The catch: Therma-Tru’s proprietary corner-key and weep-channel geometry means third-party frames often require field modification to seal properly against Fort Lauderdale’s wind-driven rain. We document the exact part number on your written quote so there’s no substitution without notice.
Before
AfterSigns Your Therma-Tru Window Installation Is Failing
- Water intrusion at the sill after heavy rain. The weep channels are clogged with salt residue and sand, or the sill pan was never properly integrated with the housewrap. In Fort Lauderdale, we see this most in east-facing units within three blocks of the Intracoastal.
- Condensation between panes that doesn’t clear. The insulated glass unit (IGU) seal has failed, allowing moist Atlantic air into the airspace. On impact-rated units, this means the entire sash must be replaced; the laminate and glass are bonded as one assembly.
- Sash won’t lock or the multipoint hardware binds. The frame has racked out of square due to settlement, or the stainless steel locking points have corroded from salt air exposure. Therma-Tru’s multipoint kits are series-specific; a generic replacement won’t engage all locking points.
- Drafts around the frame perimeter in winter. The original foam backer rod and sealant have shrunk or detached. This is common in 2015-2019 installations where butyl tape was specified instead of fluid-applied flashing.
- Visible frame deformation or corner separation. Vinyl frames in south-facing exposures can heat-beyond their design tolerance in Fort Lauderdale, accelerating stress cracks at the weld corners. Aluminum-clad units fare better but transfer more heat to the interior.
Replacement Cost & What’s Included

| Scope | Price Range |
|---|---|
| Standard vinyl sash replacement (IGU only) | $890-$1,350 |
| Full frame-out, impact-rated vinyl unit | $1,650-$2,100 |
| Aluminum-clad impact unit with laminated glass | $1,950-$2,400 |
| Sill pan and flashing remediation (add if needed) | $280-$450 |
These are installed prices for Fort Lauderdale, including removal, disposal, new unit, sealant, and interior/exterior trim repair. What drives the range: frame condition behind the existing unit, whether the original nailing flange is intact, and whether we need to match custom exterior cladding. Every quote is the measured survey you keep; the final invoice matches it exactly. The 365-Day Done Right Promise covers installation and workmanship; product warranties follow Therma-Tru’s terms, which we register on your behalf.
DIY or Call Us?
There’s no dangerous spring or electrical hazard in window replacement, but there is a precision hazard. An owner can safely check the weep channels with a pipe cleaner and verify the lock hardware moves freely. What goes wrong in DIY: ordering a replacement sash by rough opening instead of frame size, failing to integrate the sill pan with the drainage plane, or using consumer-grade sealant rated for 10-year life in a 30-year opening. We’ve been called to Fort Lauderdale homes where the owner spent $600 on a sash that didn’t fit the original frame depth by 3/8 inch. Measure it right the first time or measure it twice on someone else’s dime. Call (754) 666-7478 and we’ll bring the correct unit to the survey.
FAQs

In coastal Fort Lauderdale, expect 15-22 years for vinyl impact units and 20-28 years for aluminum-clad before frame degradation or IGU seal failure becomes likely. Salt air within two miles of the water accelerates hardware corrosion; east-facing units see more thermal cycling stress. Call (754) 666-7478 for an exact assessment of your installation - estimates are free.
Standard dual-pane IGU replacement is possible if the frame and sash are square and the hardware is functional. Impact-rated laminated assemblies cannot be field-repaired; the entire sash must be replaced to maintain the NOA certification. We verify this on site before quoting. Call (754) 666-7478 to schedule a survey.
Most single-unit replacements are completed in one working day, with the opening weathered-in by end of day. Full-frame replacements requiring exterior trim and siding repair may extend to two days. We leave a documented photo record of each stage. Call (754) 666-7478 for scheduling.
We stock common Therma-Tru impact-rated sash configurations and frame sizes for Fort Lauderdale on our trucks, with full units available through our distributor within 48-72 hours for non-standard sizes. We also stock PGT, CGI, and CWS alternatives if your opening requirements allow cross-manufacturer specification. Call (754) 666-7478 to confirm availability for your model.
Sightline Windows & Doors Fort Lauderdale is independently owned and operated under the Haven Standard. We are not affiliated with Therma-Tru Corporation; we are an independent installer and service provider.
Ready for a written price before any work starts? Call (754) 666-7478 to schedule your free measured survey. We’ll bring the tape measure, the product samples, and the exact price you’ll pay - documented, itemized, and yours to keep.
Written by Sonia Raman, Owner, Sightline Windows & Doors Fort Lauderdale at Sightline Windows & Doors Fort Lauderdale, serving Fort Lauderdale and nearby areas.
Six Reasons Homeowners Choose Sightline Windows & Doors Fort Lauderdale
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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