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 Impact Windows & Doors in Fort Lauderdale: What to Know First
We provide independent Therma-Tru impact windows and doors service in Fort Lauderdale, with most measured surveys scheduled within 48 hours and written quotes delivered before any work begins. A typical Therma-Tru impact window replacement runs $1,800-$3,400 per opening in this market, depending on series, glazing package, and whether the existing frame is salvageable. We are not affiliated with or authorized by Therma-Tru; we are an independent Therma-Tru service provider that measures, specifies, and installs to the Haven Standard we have applied to every job since 2012.
This page is for Fort Lauderdale homeowners who already have Therma-Tru products and need honest diagnostics, written pricing, and installation that does not void whatever warranty remains. If you are comparing brands, we also specify PGT, CGI, CWS, and ES Windows by performance tier and price range. Call (754) 666-7478 to schedule your measured survey. The quote you receive is the document we work from.
How Therma-Tru Products Fail - and How We Fix Them

- Impact Lite frame corner separation in coastal exposures. The Impact Lite series uses a mechanically joined vinyl frame that we see working loose after five to seven years within two miles of the Intracoastal Waterway. Salt-laden air wicks into the joint, the internal drainage weep channels clog with corrosion particulate, and water pools behind the sill track. We cut out the damaged corner, sleeve it with a welded PVC insert, and re-route drainage to exterior face rather than relying on the original bottom-weep design.
- Classic-Craft impact door slab delamination at the lock stile. The fiberglass skin over the Classic-Craft polyurethane core can separate when repeated impact cycling stresses the lock hardware mounting zone. Homeowners notice the deadbolt throws hard, then the handle set goes loose. We remove the hardware, inject structural epoxy into the delamination void, and re-tap with stainless steel thread inserts rather than the OEM self-tapping screws that initiated the fatigue.
- Spectrum series horizontal roller sash drift. Spectrum’s tandem roller carriage was specified with a single durometer wheel that flats out under the static load of laminated impact glass. The sash creeps open on its own, or binds in the track during a storm close-up. We replace with a dual-durometer roller set, harder on the bearing surface and softer on the tread, which holds adjustment through the full weight range of 9/16-inch laminated glazing.
- Smooth-Star entry system threshold rot beneath the composite cap. The cap looks intact, but the wood composite substrate beneath it traps condensation from Fort Lauderdale’s 75-plus percent annual humidity. We see this in north-facing entries in Coral Ridge and Rio Vista particularly. We pull the cap, excavate to sound substrate, and bed a new composite threshold on butyl tape with end dams, so the next failure mode is visible before it becomes structural.
- Impact-rated sidelite seal failure in ganged door assemblies. When a Therma-Tru entry door is paired with sidelites under a shared header, the sidelite glass-to-frame seal takes the flex that the door’s hinge jamb absorbs. The silicone structural glazing bead hardens, cracks, and the laminated lite fogs at the edge. We remove the lite, clean to bare frame, and re-glaze with a two-part structural silicone rated for the dynamic pressure loading, not the consumer-grade tape some retrofits rely on.
Before
AfterOur Therma-Tru Impact Windows & Doors Process
- 1
Measured survey on arrival. Our technician records rough opening dimensions, existing frame squareness, wall thickness, and substrate condition. You keep this document. Sonia Raman started Sightline on the principle that every rough opening gets measured twice before a single unit is ordered, because a window that doesn’t fit isn’t a window - it’s a callback.
- 2
Diagnostics with photo evidence. We photograph the failure mode, the frame readings, and any moisture intrusion path. This becomes part of your file and ours.
- 3
Parts specification: OEM or quality aftermarket. For Therma-Tru, we source factory-correct hardware and glazing packages when they are available and cost-justified. When lead times exceed six weeks or the part is obsolete, we specify an aftermarket equivalent that meets or exceeds the original performance spec, and we note this in writing so you know exactly what is being installed.
- 4
Written quote before work starts. Haven Clause 1: the measured survey and the quote are the same document. The price does not change once work begins.
- 5
Installation and live testing. Every impact window or door is cycled, locked, and checked for uniform compression on the weatherstrip. We run a smoke pencil on the frame perimeter to confirm no bypass.
- 6
Documented photo record and 365-Day Done Right Promise. You receive dated photos of the completed work, and the Haven Standard guarantee is stamped on your invoice. If it’s not done right, we make it right.
What Therma-Tru Impact Windows & Doors Costs in Fort Lauderdale

These are the ranges we have written on Therma-Tru quotes in Fort Lauderdale over the past eighteen months. Your measured survey determines where your job falls.
| Scenario | Typical Range |
|---|---|
| Single hung impact window, Impact Lite series, retrofit into existing frame | $1,800 - $2,600 |
| Single hung impact window, Impact Lite series, full-frame replacement | $2,400 - $3,400 |
| Classic-Craft impact entry door, slab only, hardware transfer | $2,200 - $3,100 |
| Classic-Craft impact entry door with frame, threshold, and new hardware | $3,800 - $5,200 |
| Spectrum horizontal roller impact window, dual-glazed laminated | $2,600 - $3,800 |
| Smooth-Star impact door with sidelite, frame replacement | $4,500 - $6,400 |
What moves the price: frame condition (salvageable or rotted), wall thickness and whether jamb extensions are required, impact glazing thickness (7/16-inch versus 9/16-inch laminated), and whether the installation requires a Miami-Dade Notice of Acceptance product match for HOA or insurance compliance. We do not quote over the phone; we measure, then we write the price. Call (754) 666-7478 to schedule your free estimate.
Why Fort Lauderdale Homeowners Call Sightline Windows & Doors Fort Lauderdale for Therma-Tru Work
We have installed and serviced 18,000-plus windows and doors since 2012, every one with a written price before work started and a documented photo record when finished. Our technicians are background-checked, uniformed, and identified by license number before arrival - Haven Clause 3, Verified Crews. Calls are answered by a live person, 24/7, not a queue.
We carry eight manufacturer lines, specified by what the opening requires, not by what is in stock. If your Therma-Tru product is discontinued or the lead time does not work, we can cross-specify PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, or ViewLux by performance tier and price range, with the same written guarantee. The 365-Day Done Right Promise applies to every installation, not offered as a courtesy but written into the Haven Standard. Free second opinion on any written estimate: bring us a competitor’s quote and we will review it at no charge.
FAQs

Using an independent installer does not automatically void a Therma-Tru product warranty, though factory-authorized labor coverage will not apply. We document every part number, installation date, and condition photo so you have evidence if a product defect claim arises. For warranty-safe practices on impact-rated assemblies, we follow the published installation tolerances and use factory-correct fasteners and sealants. Call (754) 666-7478 for a free estimate and we will review your warranty status with you.
OEM hardware and sash components typically ship in two to four weeks; complete frame-and-sash units run four to eight weeks depending on the series and current factory queue. When lead times stretch, we stock quality aftermarket rollers, locks, and weatherstrip that meet the original performance spec, and we note the substitution in writing. We do not leave an opening boarded longer than necessary. Call (754) 666-7478 to check current availability for your series.
Repair makes sense when the frame is square, the glazing is intact, and the failure is isolated to hardware, weatherstrip, or a single corner joint. Replacement is the better value when you have multiple failure modes, the frame shows rot or corrosion, or the product is pre-2010 and parts are obsolete. We make this recommendation in writing after the measured survey, with a price for each path. Call (754) 666-7478 to schedule your survey.
Measured surveys are typically scheduled within 48 hours. Installation dates are set once the written quote is accepted and any custom-ordered units have arrived. We do not promise same-day installation on planned replacement work; speed claims on jobs that take measured ordering and permit coordination are false and we do not make them. Emergency board-up after storm damage is a different category - call (754) 666-7478 and we will dispatch.
Yes, for any job that triggers the Florida Building Code requirement for impact-rated product replacement. We pull the permit, schedule inspection, and pass it. The permit number and inspection result are documented in your job file. This is standard, not an upsell. Call (754) 666-7478 for an exact quote - estimates are free.
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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