Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
PGT Energy-Efficient Windows in Kendall: What to Know First
We install and service PGT energy-efficient windows in Kendall as an independent PGT service provider. A typical replacement or retrofit runs $890-$2,400 per opening depending on the series and glazing package, and we bring a written price to the first visit. Most Kendall jobs we measure on Tuesday are installed by the following week.
This page is for homeowners who already have PGT windows and need better performance, or who are comparing PGT’s energy-efficient lines against what actually holds up in South Florida’s humidity and salt air. Call (786) 321-3319 to schedule a free measured survey. The document we leave with you is the same one we build from.
How PGT Products Fail - and How We Fix Them
- PGT WinGuard Aluminum series: thermal bowing in direct sun. The aluminum frame expands differentially across the south and west exposures common in Kendall’s single-story ranch homes, especially near the Turnpike corridor where lot setbacks are tight and reflection off neighboring stucco walls amplifies heat load. The glass doesn’t fail; the frame torques enough to break the glazing seal. We find this with a straightedge across the sash. Fix: remove the unit, true the frame, and reinstall with backer rod and neutral-cure silicone rated for the movement we measured.
- PGT EnergyVue Vinyl: argon loss through capillary tubes. These units ship with breather tubes that equalize pressure during shipping. If the installer doesn’t seal them properly at altitude (Miami’s basically sea level, but the units often come from higher-elevation plants), the argon bleeds within 18-24 months. We spot this with a thermal imager: the center glass reads closer to ambient than the edge. Fix: replace the IGU with a factory-sealed unit, or if the frame is sound, reglaze with a warm-edge spacer and proper tube seal.
- PGT WinGuard Vinyl: sash warping in unshaded east windows. Dark vinyl absorbs morning sun fast. In Kendall’s Pinecrest-adjacent neighborhoods with mature oak canopy, the pattern is odd: the one window that cleared the tree line warps while the rest stay true. We document this with photos for the homeowner’s record. Fix: upgrade to reinforced sash or specify solar-control glass with lower SHGC at replacement.
- PGT 5500 Series: coating degradation on coastal exposures. The Low-E soft coat oxidizes faster within three miles of Biscayne Bay when the screen track traps salt spray and the homeowner pressure-washes annually. Haze starts at the bottom third and creeps up. Fix: replace the IGU with hard-coat Low-E where the orientation demands it, or add a better screen design that doesn’t hold water.
- PGT Architectural Series: sealant adhesion failure at the fin. The nailing fin on these larger units depends on a clean substrate. Kendall’s post-1980s CBS construction often has residual form-release oil on the lintel block that nobody preps. Six months later, the fin pulls. Fix: cut back, solvent-wash the contact surface, and bed in self-leveling sealant before re-flashing. We photograph the prep because it’s invisible once the trim goes back.
Our PGT Energy-Efficient Windows Process

- 1
Measured survey. We record every opening with a laser measure, note the exposure, and check for frame square. You keep the survey sheet. This is Haven Clause 1: Have it in writing.
- 2
Diagnostics. Thermal imaging for gas loss, straightedge for frame deflection, moisture meter at the sill. We name what we found, not what we suspect.
- 3
Parts decision. OEM PGT IGUs when the lead time works and the warranty position is clean. Quality aftermarket when the original line is discontinued or the homeowner needs faster turnaround. We explain the trade-off in writing.
- 4
Install or reglaze. Dry-fit first. Sonia Raman insists on this - measure once, document it, then cut. Sealant only after the fit is verified. No shim-and-hope.
- 5
Performance test. Smoke pencil for air infiltration, thermal imager for cold spots, operable sash cycled twenty times. Documented photo record sent to you before we pack up.
- 6
Warranty registration and follow-up. The 365-Day Done Right Promise is stamped on your job. We call at 90 days to check performance through Kendall’s wet season.
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AfterWhat PGT Energy-Efficient Windows Costs in Kendall
| Scenario | Typical Range |
|---|---|
| Single IGU replacement, WinGuard Aluminum, standard Low-E | $890-$1,350 |
| IGU replacement, EnergyVue Vinyl, argon-filled with warm-edge spacer | $1,100-$1,650 |
| Full sash replacement, WinGuard Vinyl, solar-control glass | $1,400-$2,100 |
| Complete unit replacement, Architectural Series, impact-rated with Low-E | $1,800-$2,400 |
| Multi-opening retrofit (5+ units), mixed series | $4,500-$9,500 |
What moves the price: frame condition (can we save it or not), glass package complexity, and whether the original installation left us a clean substrate or a teardown. We don’t quote until we measure. Call (786) 321-3319 for your free estimate - the written price we leave is the price you pay.
Why Kendall Homeowners Call Sightline Windows & Doors Kendall for PGT Work

We’ve measured and set frames in Kendall long enough to know which PGT series the Dadeland-area builders spec’d in 2017 versus what went into the newer infill near the Miccosukee Golf & Country Club. That matters because the failure modes differ, and the fix that works on one won’t work on the other.
Every technician is background-checked, uniformed, and identified by license number before arrival - Haven Clause 3, Verified Crews. The 365-Day Done Right Promise is written into every job, not offered as a courtesy. If it’s not done right, we make it right.
We also carry CGI, CWS, ES Windows, and ECO Window Systems. When a PGT line is discontinued or the lead time doesn’t work for your situation, we can specify by performance tier and price range, not by what we have in stock.
FAQs
No. PGT’s warranty covers manufacturing defects in the glass and frame, regardless of who installs or services the unit. What voids coverage is improper modification or use of non-compatible parts. We use OEM or spec-matched components and document everything, so your warranty position stays clean. Call (786) 321-3319 if you have a specific warranty concern.
Properly installed PGT vinyl units with quality glazing typically perform 15-20 years in Kendall before the IGU seal degrades. Aluminum frames last longer structurally but the thermal break and glazing package need attention sooner. The real variable is installation quality - a unit set in a wet, dirty opening won’t make ten years no matter what the brochure says. We inspect the opening before we quote.
Usually yes, within the limits of what’s still manufactured. PGT has discontinued some color and grid combinations. We bring sample chips and profile drawings to the survey so you can compare in your actual light. When an exact match isn’t possible, we explain the closest alternative in writing before you commit.
Repair makes sense when the frame is sound and only the IGU or hardware has failed. Full replacement is the better call when the frame is warped, the installation was improper from the start, or you’re upgrading from single-pane to impact-rated energy-efficient units. We don’t know which until we measure. The survey is free.
Standard IGUs and hardware typically arrive in 7-10 business days. Discontinued lines or custom sizes can stretch to 4-6 weeks. We don’t quote a date until we confirm availability with our supplier. Haven Clause 2: Arrive on schedule. We don’t promise what we can’t verify.
Ready to see what your PGT windows need? Call (786) 321-3319 to schedule your free measured survey. We’ll bring a written price, leave you the document, and build from there.
Written by Sonia Raman, Owner, Sightline Windows & Doors Kendall at Sightline Windows & Doors Kendall, serving Kendall and nearby areas.










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