516-908-8005
Google reviews that we have
Rating
4.9
569 reviews
Brian Mass
2 days ago
The team did a fantastic job! We have 13 additional window moldings that need repair (on top of the ...
The team did a fantastic job! We have 13 additional window moldings that need repair (on top of the 19), so I signed another order.
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Luca Fumagalli
2 days ago
Good work
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Veronika Kalancha
3 days ago
Good job
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Sarah Arxt
1 week ago
I just had some screen doors changed on my outside custom-made doors. Yura and Dennis came and did a...
I just had some screen doors changed on my outside custom-made doors. Yura and Dennis came and did an outstanding job. Fast, clean, professional. Don't hesitate to hire them and this is coming from someone who does not write reviews.
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Claude Phillipe
2 weeks ago
Thank you so much, my sliding door looks amazing and new. Along with the privacy screen
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Aehee Kim
4 weeks ago
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Neal Lynch
4 weeks ago
Arwin and Sergio did a clean, prompt and professional job. I highly recommend “Prestige Window Works...
Arwin and Sergio did a clean, prompt and professional job. I highly recommend “Prestige Window Works”.
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Tom Pinou
1 month ago
Dennis Yuri is a Master Craftsman! He is the only person I would trust and recommend you use. He is ...
Dennis Yuri is a Master Craftsman! He is the only person I would trust and recommend you use. He is Professional, extremely knowledgeable and prompt in service. I am so glad I selected him. He can repair anything… He is an expert in his field!
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Gene Brayman
1 month ago
Prestige Windows done a great job replacing 5 double pane glass on my windows and large castom glass...
Prestige Windows done a great job replacing 5 double pane glass on my windows and large castom glass panel in one of my walls. Great communication, ready in 2 days, installed all at once. Very professional. Highly recommend!
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Sara LaLa
1 month ago
We were so appreciative of Andrey’s knowledge, expertise, and professionalism. We highly recommend P...
We were so appreciative of Andrey’s knowledge, expertise, and professionalism. We highly recommend Prestige Windows for all your needs.
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Window Glass Replacement in Nesconset, NY

Not every fogged window repair call is a standard opening. This one in Nesconset was a large fixed picture window set into a vaulted two-story great room — the kind of window a room is built around. The IGU seal had failed. Dense internal haze covered the upper glass surface. No cleaning resolves that. The contamination is between the panes, and the only correct fix is replacing the unit.

The project was completed during a full interior renovation — which is one of the most common triggers for IGU replacement in Suffolk County. Fogged glass that gets tolerated for years becomes impossible to accept alongside new paint and finishes. The after photo shows the result: the same two-story assembly, surrounding walls repainted charcoal, upper glass completely clear. Blue sky and bare branches sharp through a window that was designed to be the focal point of the space.

We serve Nesconset from our Hauppauge office. Homeowners searching for window glass replacement near me in Nesconset, NY can reach us at 516-908-8005 — free estimate, 10-year warranty on every IGU installation.

Why Large-Format IGU Replacement Needs More Than Standard Practice

Large fixed picture windows in Nesconset’s custom 1980s–1990s construction are almost never standard catalog dimensions. The replacement unit must be measured from the actual installed opening — frame rebate depth, glazing channel profile — and custom cut to those exact dimensions via our glass cutting service. An undersized or oversized unit cannot be correctly seated.

Installation technique matters too. A large-format IGU carries significant weight. Edge blocks must be positioned correctly at the lower corners to distribute load evenly — incorrect installation creates point stress at the corners and shortens the lifespan of the new unit. We also discuss Low-E specification at every large-format estimate. On a window this size, the energy performance difference between standard clear and Low-E coated glass is not marginal. It is worth the conversation before ordering.

Why Nesconset’s Custom Homes Are Reaching This Point Now

Nesconset’s larger homes were built or comprehensively renovated through the 1980s and 1990s. The large-format IGUs installed during that period are now 25–40 years old — squarely at the end of their first seal cycle. Long Island’s inland freeze-thaw cycling works factory edge seals loose over decades. The fogging arrives seemingly suddenly, but the seal failure began well before any haze was visible. It is a predictable end point for this construction era, appearing now across Nesconset, Smithtown, and surrounding western Suffolk communities simultaneously.

Our glass replacement service handles all dimensions — custom-cut glass ordered and installed on a confirmed date, 10-year warranty on the new unit. Nassau County Consumer Affairs Home Improvement License #204701 for Doors & Windows — verifiable through Nassau County before you call.

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Window Glass Replacement in Nesconset, NY
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10-Year IGU Warranty

Every glass unit we install is warranted for 10 years in writing. Fogs again, we replace it.

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Licensed Contractor

Nassau County Consumer Affairs License #204701 — Doors & Windows. Verifiable before you hire us.

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Suffolk County Local

Hauppauge office serves Nesconset directly. Fast scheduling, no travel overhead.

View our before and after photos

Before Window Glass Replacement in Nesconset, NY - before After Window Glass Replacement in Nesconset, NY
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THE MOST POPULAR QUESTIONS

Can you replace just the glass in a large picture window?
Yes — if the frame is sound, we replace the IGU only. The frame, trim, and surrounding architecture stay untouched.
How long does custom glass take to arrive?
7–14 business days for non-standard dimensions. We confirm the lead time at the estimate visit and schedule installation when the glass is ready.
Should I upgrade to Low-E when replacing a fogged picture window?
Worth discussing. On a large window the energy performance difference is meaningful — we give you the option and the cost difference at the estimate stage.
Who does large window glass replacement in Nesconset, NY?
Prestige Window Works — Hauppauge office, serving all of western Suffolk County. Call 516-908-8005.
Are you licensed for glass replacement work in Suffolk County?
Yes. Nassau County Consumer Affairs License #204701 for Doors & Windows, verifiable through Nassau County directly.
Looking for window and door repair or replacement services in Long Island?
Contact our team of on-site specialists for all your needs.
Call Us Now!