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
PGT Sliding & Patio Doors: The Miramar Owner’s Guide
PGT sliding and patio door repair in Miramar typically runs $340-$890 for standard roller, track, and hardware replacement, with full panel swaps on impact-rated units reaching $2,400-$4,800 installed. We stock PGT-compatible rollers, tandem assemblies, and weatherstrip kits on our Miramar trucks, and most hardware-only jobs finish same day. Most owners discover the failure when the door sticks in the track during afternoon humidity spikes, or when they notice the panel has dropped enough to break the sweep seal against the sill.
Which PGT Models This Applies To

PGT builds sliding and patio doors across several series, and the hardware is not interchangeable between them. The PGT 7700 Series (standard vinyl sliding patio door) uses a 1-1/4 inch tandem roller with a stamped steel housing, while the PGT WinGuard 7700 and WinGuard 7800 impact-rated units run a heavier 1-1/2 inch stainless tandem roller rated for the additional panel weight of laminated glass. The PGT 5400 Series (aluminum-framed sliding door common in 2015-2019 Miramar builds) carries a proprietary bottom track profile that accepts only PGT’s own rail insert, not generic aftermarket track caps.
We identify the correct part three ways: the PGT serial sticker inside the frame jamb (usually upper right on the fixed panel side), the roller housing width measured with the panel lifted, and the track profile cross-section. For WinGuard units, we match the impact certification label to the roller load rating, not just the housing dimensions. Aftermarket rollers exist for the 7700 standard series at roughly half the OEM price, but we have seen housing deflection failures on off-brand tandem rollers after 14-18 months in Miramar’s salt-air exposure. On WinGuard impact units, we specify PGT OEM rollers, the load rating is engineered to the glass weight and the liability is real.
We also stock and install parts for CGI, CWS, and ES Windows sliding door systems, specified by what the opening requires.
Before
AfterSigns Your PGT Sliding & Patio Doors Is Failing
- The panel drags or sticks in the track, especially after rain. The tandem roller bearings have seized or the axle has corroded. In Miramar, we see this first on west-facing doors where afternoon sun bakes the track and evening condensation follows; the thermal cycle accelerates bearing grease breakdown.
- You feel grit or hear grinding when rolling the door open. The roller wheel has flat-spotted or the housing has cracked. On PGT vinyl units, the housing flexes slightly under load and eventually stress-fractures at the axle bore.
- Daylight or water intrusion at the sill. The door has dropped enough that the sweep no longer contacts the sill cap. This is usually roller collapse, not sweep failure, though the sweep may be damaged secondarily.
- The lock tongue misses the strike or requires lift to engage. Panel sag from worn rollers has thrown the lock alignment off by 1/8 inch or more. Forcing the lock will oval the strike plate.
- Condensation between glass panes on dual-pane units. The insulated glass unit seal has failed. This is not a roller or track issue, it is a full panel replacement, and it is common on south Miramar doors with dark exterior frames that run 40-50 degrees hotter than ambient.
Replacement Cost & What’s Included

Our pricing for PGT sliding and patio door work in Miramar is written before any tool is lifted, and the measured survey we leave with you becomes the invoice.
| Service | Typical Range |
|---|---|
| Roller / tandem assembly replacement (standard 7700) | $340-$520 |
| Roller replacement (WinGuard impact-rated) | $480-$720 |
| Track rail insert or sill cap replacement | $420-$680 |
| Full panel replacement (standard, dual-pane) | $1,800-$2,800 |
| Full panel replacement (WinGuard impact-rated) | $2,400-$4,800 |
The range reflects three variables: whether the panel must be removed to access the rollers (some 5400 Series aluminum frames allow bottom-access; WinGuard units usually do not), whether the track itself is damaged beyond the insert, and whether the jamb liner or weatherstrip is degraded and needs simultaneous replacement. We do not quote hardware-only and then discover track damage onsite. The measured survey catches it. Every roller and track job carries our 365-Day Done Right Promise under the Haven Standard, if the adjustment drifts or the new roller binds, we return and correct it.
DIY or Call Us?
What you can safely check: vacuum the track channel, verify the door is not obstructed by debris, and confirm the lock engages without forcing. What goes wrong fast: lifting a PGT sliding panel solo. A standard 6-foot vinyl panel weighs 80-100 pounds; a WinGuard impact-rated panel with laminated glass runs 160-220 pounds. The roller axle sits under spring tension, and releasing the adjustment screw without supporting the panel drops the full weight onto your fingers or the sill cap. We have replaced sills where a homeowner’s pry bar slipped and cracked the rail.
We are an independent service provider, not affiliated with PGT. If you have the serial number and a photo of the roller housing, text it to (754) 260-1468 and we will confirm stock before we schedule. Measure it right the first time. Everything else follows from that.
FAQs

Standard 7700 series rollers typically last 8-12 years in Miramar’s coastal climate; WinGuard stainless rollers run 10-15 years if the track stays clean. Salt-air exposure and west-facing sun exposure shorten that by 20-30 percent. Call (754) 260-1468 for an exact quote on replacement, estimates are free.
No. PGT tandem rollers are sealed units with pressed-in bearings; they are not serviceable. Re-greasing a seized roller is a temporary fix that fails within weeks. We replace the full assembly. Call (754) 260-1468 for an exact quote, estimates are free.
Most hardware-only jobs finish in 2-3 hours. Full panel replacement requires ordering to PGT’s current lead time, then one day for install. We do not quote panel jobs until the measured survey is complete. Call (754) 260-1468 to schedule.
We carry standard and WinGuard tandem rollers, track inserts, sweep kits, and lock hardware for the 7700 and 5400 series on our Miramar trucks. Specialty or discontinued PGT hardware orders in 2-3 business days. Call (754) 260-1468 to confirm stock against your serial number.
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.
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