Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Mr-Glass Energy-Efficient Windows in Kendall: What to Know First
We install and service Mr-Glass energy-efficient windows in Kendall as an independent provider, not an authorized dealer. Most Mr-Glass jobs we handle in this area run from measured survey to completion inside two weeks, and the written quote you receive before any work starts is the same document we use for the final invoice. If you’re seeing fog between panes, rising cooling bills, or faded floors near your Mr-Glass units, the problem is usually the sealed glazing assembly or the Low-E coating degradation that accelerates in South Florida’s UV load. Call (786) 321-3319 to schedule a free measured survey. We also review competitor written estimates at no charge.
How Mr-Glass Products Fail - and How We Fix Them
- Mr-Glass 500 Series: seal failure showing as haze between panes. The 500 Series uses a dual-seal warm-edge spacer that holds up well in dry climates but suffers accelerated butyl creep in Kendall’s 90%+ summer humidity. We see this most often in west-facing units where daily thermal cycling peaks. We replace with OEM or validated aftermarket IGU assemblies using a stainless-steel intercept spacer rated for marine-zone moisture intrusion, then pressure-test the argon fill.
- Mr-Glass 700 Series: Low-E coating oxidation visible as a milky iridescence. The 700 Series soft-coat Low-E can oxidize at the edges when the edge seal breathes even slightly, which happens faster within three miles of Biscayne Bay’s salt air. We don’t buff or treat the glass; we specify a replacement IGU with hard-coat Low-E or an upgraded suspended-film unit depending on the opening’s solar heat gain coefficient needs.
- Mr-Glass Architectural Series: frame thermal bowing causing operable sash to bind. The dark bronze and black frame options in this series absorb enough solar energy to thermally expand the vinyl beyond design tolerance on unshaded second stories. We check plumb and square, then either reset the frame with composite shims that handle the movement, or specify a replacement unit with reinforced sash and upgraded weatherstripping if the bowing has permanently deformed the mainframe.
- Mr-Glass single-pane retrofits: original jalousie or louvered units leaking conditioned air. These aren’t technically “failed” but they functionally defeat any central AC system in a Kendall home. We measure the rough opening against the finished wall plane, then specify a fixed or casement replacement that meets current Florida Building Code energy requirements without disturbing the stucco eyebrow details common in 1960s-80s Kendall construction.
- Mr-Glass 300 Series: argon loss detectable by temperature differential, not visual failure. Argon escapes through permeable edge seals at roughly 1% per year under normal conditions, but Kendall’s UV index pushes that to 2-3% annually. We use a thermal imaging meter on every 300 Series survey to detect the gas loss before fogging appears, then quote a replacement IGU with krypton upgrade for high-value openings or standard argon refill for cost-sensitive jobs.
Our Mr-Glass Energy-Efficient Windows Process

- 1
Measured survey you keep. Sonia Raman or a verified crew member arrives in uniform with license number visible, records every opening’s width, height, plumb, and square, and notes the existing Mr-Glass series, glazing label, and any frame distortion. You receive this document before we leave.
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Diagnosis with evidence. We thermal-scan the IGU, check for seal breach with a polarized light test where appropriate, and photograph frame conditions. The photo record starts here, not after the sale.
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Parts specification: OEM or validated aftermarket. For Mr-Glass units still under original warranty, we use OEM parts to preserve coverage. For out-of-warranty work, we source IGUs from our verified aftermarket line that match or exceed the original U-factor and SHGC ratings, documented by NFRC label.
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Written scope and fixed price. Haven Clause 1: the measured survey and the quote are the same document. No change orders, no “we found more once we opened it up.” The price is the price.
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Installation and live test. We dry-fit every frame before sealant application - Sonia’s habit from two decades in the field. Then we operate every sash, check the lock engagement, and verify the glazing stop seating with a feeler gauge.
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Documented completion and 365-Day Done Right Promise. You receive the photo record of finished work, the final invoice matching the written quote, and the Haven Standard warranty card stamped with the 365-Day Done Right Promise. If it’s not done right, we make it right.
Before
AfterWhat Mr-Glass Energy-Efficient Windows Costs in Kendall
| Scenario | Typical Range | What Moves the Price |
|---|---|---|
| Mr-Glass 300/500 Series IGU replacement (single unit) | $340-$580 | Size, Low-E coating type, argon vs. krypton fill |
| Mr-Glass 700 Series IGU with hard-coat Low-E upgrade | $520-$780 | Triple-track vs. single hung, laminated inner lite |
| Architectural Series frame reset or reinforcement | $180-$340 | Accessibility, stucco repair scope, composite shim requirements |
| Full replacement: Mr-Glass to new energy-efficient unit | $890-$1,450 | Opening size, impact rating requirement, permit complexity |
| Whole-home energy audit with thermal imaging | $0 | Free with any written estimate; standalone by request |
Prices include measured survey, written scope, installation, and documentation. Permits, if required for full replacement, are quoted separately and pulled by our team. Call (786) 321-3319 for your exact quote - estimates are free, and we review competitor written estimates at no charge.
Why Kendall Homeowners Call Sightline Windows & Doors Kendall for Mr-Glass Work

We’ve measured and set frames in Kendall long enough to know which Mr-Glass series were installed in the Dadeland-area townhome boom of the late 2000s, and which ones are showing their age now. Sonia Raman’s crew finished a full impact-window retrofit on a block of townhomes near Dadeland Mall last quarter - not Mr-Glass on that job, but the same wall assemblies and thermal bridges we see on Mr-Glass units in similar construction. When a Mr-Glass part is back-ordered or discontinued, we draw from eight verified manufacturer lines including PGT, CGI, CWS, and ES Windows to specify a replacement that fits the opening and beats the original performance spec, documented by written comparison. Every technician is background-checked, uniformed, and identified by license number before arrival. Calls are answered by a live person, 24/7. The 365-Day Done Right Promise is stamped on every job, not offered as a courtesy. Measure once, document it, then cut.
FAQs
No, if we use OEM parts and document the work - but Mr-Glass warranties typically cover original defects only, not seal failure from age or environmental exposure. As an independent Mr-Glass service provider, we verify your warranty status during the measured survey and specify parts accordingly. Call (786) 321-3319 to schedule a free estimate and we’ll check the glazing label date code on arrival.
Repair is viable when the frame is square, the hardware functions, and only the IGU has failed; replacement makes sense when the frame is thermally bowed, the sash mechanism is worn, or the U-factor no longer meets your needs. We make this determination during the measured survey and tell you which path costs less over ten years, not just today. Call (786) 321-3319 for a written comparison.
Yes, for standard white and bronze finishes; custom colors may require a full sash replacement. We photograph the existing frame and cross-reference the Mr-Glass color code from the glazing label, then confirm the match before ordering. If the color is discontinued, we document the closest current equivalent in writing for your approval. Call (786) 321-3319 to schedule a survey.
IGU replacement in a standard single or double hung takes 90-120 minutes per opening once parts arrive; full frame replacement runs 3-4 hours per unit. Most Kendall jobs complete in one day for 1-4 openings, two days for whole-home work. We don’t promise same-day dispatch - we promise a scheduled arrival window we keep, per Haven Clause 2. Call (786) 321-3319 to book your measured survey.
We audit the whole house, but flag Mr-Glass-specific performance gaps against the original published U-factor and SHGC for your series. Our thermal imaging survey checks every opening, identifies the worst performers, and prioritizes them by payback period. The audit is free with any written estimate. Call (786) 321-3319 to schedule.
Written by Sonia Raman, Owner, Sightline Windows & Doors Kendall at Sightline Windows & Doors Kendall, serving Kendall and nearby areas.










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