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Mr-Glass Energy-Efficient Windows in Boca Raton: What to Know First
We provide independent Mr-Glass energy-efficient window service in Boca Raton, with most repairs scheduled within a few business days and replacement jobs quoted from a measured survey you keep. Our written price before any work starts runs $180-$340 for typical Mr-Glass Low-E seal repairs and $2,800-$6,500 for full-frame ENERGY STAR replacements, depending on series and opening size. This page is for homeowners who already have Mr-Glass units installed and are seeing fogging, temperature bleed, or rising cooling bills, and want to know whether the glass package can be saved or needs replacement. Call (561) 200-8592 to schedule your free estimate.
How Mr-Glass Products Fail - and How We Fix Them
- Mr-Glass 300 Series fixed picture windows: The dual-pane Low-E/Argon seal fails at the spacer bar edge first, showing as a haze band 2-3 inches from the frame that owners often mistake for exterior condensation. In Boca Raton’s salt-air environment, the stainless spacer corrodes faster than aluminum alternatives; we replace with a warm-edge spacer and recharge Argon to factory spec, not just defog the cavity.
- Mr-Glass 500 Series single-hung tilt units: The balance shoe cracks where the tilt latch meets the jamb liner, letting the sash drop and break the weatherstrip seal. We see this on west-facing elevations in Boca Raton where thermal expansion cycles are hardest; our fix replaces the shoe with the OEM nylon part and resets the jamb liner square, because an aftermarket shoe with softer durometer will fail again in 18 months.
- Mr-Glass laminated insulated glass in the 700 Series: The interlayer delaminates from UV exposure when the Low-E coating degrades on the #2 surface, creating a milky bloom that blocks visible light but still reads clear on a casual look. We document this with transmitted-light photos for the customer record, then source replacement IGUs with upgraded Solarban 70XL or equivalent from our ES Windows or ECO Window Systems lines if Mr-Glass lead times stretch past six weeks.
- Mr-Glass sliding patio door rollers (all series):strong> The nylon wheel flat-spots from weight load combined with track grit, which wears the door bottom seal and lets conditioned air escape. We pull the sash, measure the axle bore and wheel diameter to 1/32 inch, and install a sealed-bearing roller rated for the actual sash weight - not the universal replacement that most suppliers default to.
- Mr-Glass solar tint films applied aftermarket: The adhesive outgasses in south Florida heat, bubbling at the glass edge and creating a thermal stress riser that can crack the lite. We remove the film chemically, inspect the glass edge for damage under magnification, and if the underlying IGU is compromised, quote a replacement with factory-integrated tinted glass rather than reapply film.
Our Mr-Glass Energy-Efficient Windows Process

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Measured survey and thermal reading. Sonia Raman or a verified crew member arrives uniformed with license number visible, records frame opening dimensions to 1/8 inch, and takes surface-temperature readings with an infrared gun at center glass and edge to locate seal failure or frame thermal bridging.
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Diagnosis and documentation. We photograph the failure mode, note the Mr-Glass series, glass package code, and NFRC label data, and give you the printed survey to keep. This becomes the baseline for the written quote and any warranty conversation later.
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Parts decision: OEM or verified equivalent. For Mr-Glass units under ten years old with intact frames, we quote OEM glass packages when available. If Mr-Glass lead times exceed your comfort or the frame is damaged, we specify an equivalent from PGT, CGI, CWS, or ES Windows with matching U-factor and SHGC ratings, documented in writing.
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Repair or replacement with evidence. We perform the work, photograph the installed unit from interior and exterior, and record the new glass package specs in our running log: brand, U-factor, SHGC, install date, and your name.
- 5
Test and turnover. We operate every moving sash or door three full cycles, check lock engagement, and verify the written quote matches the final invoice to the dollar. The 365-Day Done Right Promise is stamped on your paperwork before we leave.
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Cleanup and photo record delivery. We remove all debris, leave the work area broom-clean, and email your documented photo record within 24 hours.
Before
AfterWhat Mr-Glass Energy-Efficient Windows Costs in Boca Raton
| Scenario | Typical Range | What Moves the Price |
|---|---|---|
| Mr-Glass IGU seal repair (dual-pane, Low-E/Argon recharge) | $180-$340 per lite | Size, accessibility, whether the sash needs removal |
| Mr-Glass sash replacement (frame intact, new IGU) | $420-$780 per opening | Series, glass package tier, tempered requirement |
| Mr-Glass full-frame replacement, standard single-hung | $2,800-$4,200 | Opening size, wall condition, interior trim repair |
| Mr-Glass full-frame replacement, large picture or sliding door | $4,500-$6,500 | Impact rating requirement, lift equipment, finish carpentry |
Prices include the measured survey, written scope, installation, and photo record. We do not charge separately for diagnostic visits that lead to a repair or replacement. If you have a competitor’s written estimate for the same scope, we will review it at no charge. Call (561) 200-8592 for your free estimate.
Why Boca Raton Homeowners Call Sightline Windows & Doors Boca Raton for Mr-Glass Work

We are independently owned and operated under the Haven Standard, not a franchise or manufacturer affiliate. Every Mr-Glass job we take in Boca Raton carries the 365-Day Done Right Promise written into our scope, not offered as a courtesy after the fact. Our technicians are background-checked, uniformed, and identified by license number before arrival - Haven Clause 3, Verified Crews. Because we stock and source from eight manufacturer lines including PGT, CGI, CWS, ES Windows, and ECO Window Systems, we are not waiting on a single supplier’s warehouse when your cooling bill is climbing. Sonia Raman keeps a running log of every unit: brand, glass package, U-factor, date, customer name. A warranty conversation five years out goes better when you have the paperwork. Measure it twice, write it down, then we can talk price.
FAQs
As an independent Mr-Glass service provider, our repairs do not carry Mr-Glass factory warranty coverage, though we document every part and procedure so you have a record. If your unit is still within the original Mr-Glass warranty period, we will flag that during diagnosis and advise whether a factory claim is the better path. Call (561) 200-8592 and we will review your options at no charge.
A properly resealed IGU with warm-edge spacer and recharged Argon typically holds 10-15 years in Boca Raton’s salt-air, high-UV environment, though west-facing elevations with dark exterior cladding may see shorter cycles due to thermal stress. We note orientation and cladding color in your record so future service has context. For an exact assessment of your opening, call (561) 200-8592 - estimates are free.
Yes, we photograph the existing grid profile and measure muntin width to source a match from OEM or verified-equivalent stock. The 300 Series and 500 Series use slightly different grid retention clips, so we verify series from the frame stamp before ordering. Mismatched grids are a common callback we avoid by checking twice. Call (561) 200-8592 to schedule measurement.
Repair the IGU if the frame is square, the hardware operates smoothly, and the failure is seal-only. Replace the full frame if you find rot in the sill, deformation in the head jamb, or if the unit predates 2015 and uses single-pane or non-Low-E glass. We give you both prices in writing and let the numbers decide. Call (561) 200-8592 for your free estimate.
Discontinued Mr-Glass series typically require 4-8 weeks for OEM glass packages if stock remains in the Florida distribution chain. We maintain cross-reference specifications to PGT, CGI, CWS, and ES Windows lines with equivalent U-factor and SHGC performance, often cutting lead time to 1-2 weeks. We quote both options with the performance data so you choose based on timeline and price. Call (561) 200-8592 to check current availability.
Ready to stop the bleed on your cooling bill? Call (561) 200-8592 to schedule your free Mr-Glass energy-efficient window estimate in Boca Raton. We will bring the measured survey, the written price, and the photo record - because Haven Clause 1 says the quote and the measurement are the same document.
Written by Sonia Raman, Owner, Sightline Windows & Doors Boca Raton at Sightline Windows & Doors Boca Raton, serving Boca Raton and nearby areas.










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