New windows and doors improve comfort, cut energy bills and add long-term value to your home. Sightline Windows & Doors Miramar 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 Miramar Owner’s Guide
Therma-Tru window installation in Miramar typically runs $340-$780 per opening for a standard replacement, depending on frame type, glazing package, and whether the existing rough opening needs reframing. We stock Therma-Tru-compatible frames, sashes, and hardware for same-day installation on most residential series, and we carry the full measurement documentation from survey to final invoice. Most Miramar homeowners discover their Therma-Tru window is failing when they feel Gulfstream humidity pushing past a weatherstrip that no longer seats, or when they spot condensation between panes on a window that faces the afternoon sun.
Which Therma-Tru Models This Applies To

Therma-Tru organizes its window lines by frame material and performance tier, and the part you need depends on which series is in your wall. The Classic-Craft and Fiber-Classic collections use pultruded fiberglass frames with specific glazing bead profiles; the Vistagrande sliding series uses a different sash rail and roller assembly than the hinged patio units. Check the etched mark in the glass corner or the specification label on the frame head for the series code and NFRC rating.
We match OEM Therma-Tru components where the series is still in production, and we source quality aftermarket equivalents for discontinued lines. One compatibility gotcha we see in Miramar: the Fiber-Classic FC-100 and FC-200 share the same frame depth but use different glazing bead widths, 7/16 inch versus 9/16 inch. A bead ordered by series name alone without checking the profile dimension will not seat. We pull the bead sample and match it to the manufacturer’s dimensional drawing before any part is cut. Sightline Windows & Doors Miramar is an independent service provider, not affiliated with Therma-Tru.
Before
AfterSigns Your Therma-Tru Window Installation Is Failing
- Visible moisture between glass panes. The insulating glass unit seal has failed, allowing humid Miramar air to enter the airspace. The glass pack needs replacement; resealing the edge is not a lasting fix in South Florida’s salt-air climate.
- Sash drags or sticks in the frame. Rollers on sliding units wear flat, or the frame has shifted in the rough opening. We check plumb and square before blaming the hardware; a sixteenth-inch racked frame will bind any new roller.
- Air infiltration at the meeting rail or sill. Weatherstrip compression set, common after seven to ten years of UV exposure. Therma-Tru uses a dual-fin silicone bulb on newer series; older units may have neoprene that hardens faster.
- Frame corner separation or sealant failure. Thermal expansion cycles stress the mechanical joints. In Miramar’s coastal zones, we see this accelerated on west-facing elevations that take open water exposure.
- Hardware operates but does not draw the sash tight. The multipoint lock actuator or keepers have worn. A lock that feels secure but leaks is often a keeper alignment issue, not a lock failure.
Replacement Cost & What’s Included

| Service Level | Typical Range in Miramar |
|---|---|
| Standard sash/IGU replacement, per opening | $340-$520 |
| Full frame replacement with impact-rated upgrade | $620-$780 |
| Rough opening repair/reframe | $180-$340 additional |
| Discontinued series, custom fabrication | $580-$920 |
What drives the range: frame material (vinyl, fiberglass, or aluminum-clad), glazing specification (single-pane, dual-pane, or impact-laminated), and whether the existing window was installed as a new construction unit or a retrofit insert. Every quote we write in Miramar starts with a measured survey you keep; the written price before any work starts is Haven Clause 1, and the final invoice matches that document. Our 365-Day Done Right Promise covers the installation, and you receive a documented photo record of the completed work.
DIY or Call Us?
An owner can safely check the series label, photograph the hardware stamp, and confirm whether the window is under warranty. What goes wrong fast: ordering a sash by visual similarity rather than spec match, then discovering the glazing bead, cam lock, or roller spacing differs by a fraction that prevents installation. For impact-rated units, improper installation voids the Miami-Dade NOA certification, and the permit inspection will fail.
We do not recommend homeowner removal of a fixed sash or IG unit; the glass is heavy, the frame is under spring or block-and-tackle tension, and the damage from a dropped sash exceeds the cost of professional handling. Call (754) 260-1468 and we will schedule a measured survey. The written price comes before any tool is lifted.
FAQs

In South Florida’s climate, a properly installed Therma-Tru fiberglass or vinyl unit typically performs 15-22 years before major component replacement, though west-facing windows with open water exposure may need weatherstrip and hardware service at 8-12 years. Salt air and UV intensity are the primary accelerants. Call (754) 260-1468 for an exact quote on your specific series - estimates are free.
Weatherstrip, hardware, and insulating glass units can be replaced independently; the frame itself is rarely repairable if corner-jointed or if the pultruded fiberglass has delaminated. We assess whether the repair cost exceeds replacement value before recommending a path. Call (754) 260-1468 for an exact quote - estimates are free.
A standard sash or IGU replacement in an existing Therma-Tru frame takes 2-3 hours per opening; a full-frame replacement with trim and sealant work takes a full day for a typical residential unit. We schedule arrival times, not windows, and we document the completed work with photos you receive. Call (754) 260-1468 to schedule.
We stock common Therma-Tru glazing beads, weatherstrip profiles, and hardware for series currently in production; discontinued lines require a 5-10 business day fabrication order. We verify series and profile dimensions on the first visit so nothing is ordered incorrectly. Call (754) 260-1468 to confirm availability for your model.
Measure it right the first time. Everything else follows from that.
Sonia Raman grew up in Miami and picked up her first set of glazier’s tools not long after finishing the Building Construction Technology program at Miami Dade College. She has spent more than two decades measuring, ordering, and installing windows and doors across South Florida, and her crew has worked throughout Miramar for years, including retrofits on homes backing up to Lake Lucerne City Park, where impact-rated frames have to hold up to open water exposure on the west elevation.
Written by Sonia Raman, Owner, Sightline Windows & Doors Miramar at Sightline Windows & Doors Miramar, serving Miramar and nearby areas.
Six Reasons Homeowners Choose Sightline Windows & Doors Miramar
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.
Other Sightline Windows & Doors Miramar Services
