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Take $500 off each installed window or door.

Plus, $0 Down, 0% Interest, 0 Payments for 12 Months.

Take $500 off each installed window or door.
Plus, $0 Down, 0% Interest, 0 Payments for 12 Months.

Minimum purchase of four or more windows or doors to receive $500 off per installed window or door. Offer not valid on previous purchases. $0 Down, 0% Interest, and 0 Monthly Payments for 12 Months Financing offers a no payment—no interest feature (during the “promotional period”) on your purchase at the interest rate set forth in your loan agreement.

No finance charges will accrue on your account during the promotional period, as set forth in your Truth in Lending Disclosures, and you will not have to pay a monthly payment until the promotional period has ended. If you repay your purchase in full before the end of the promotional period you will not have to pay any finance charges. You may also prepay your account at any time without penalty. Financing is subject to credit requirements and satisfactory completion of finance documents.

Any finance terms advertised are estimates only. Normal late charges apply once the promotional period has ended. Financing requires minimum purchase of $12,000. May not be combined with other offers, discounts, or promotions. No cash value. Offer valid only for installed product purchased directly from Infinity Replacement. Offer expires January 31, 2026. See details and license info at install.infinitywindows.com.

Rustic living home interior featuring tall, black Infinity windows.

Schedule a complimentary, no-pressure consultation with Infinity Replacement in Long Island, New York today.

No commitment — just expert guidance and a custom quote.
Details

No commitment—just expert guidance and a custom quote.



We’ll review your current windows and doors, help with design ideas, and take measurements for pricing. You’re free to decide how (or if) you want to move forward.


If you don’t see a time that works for you, please call us at 866-922-2119.

By continuing, you agree to Infinity Replacement’s Terms of Use & Privacy Policy. By providing your phone number, you agree to be contacted by voice or SMS to schedule or follow up your appointment.

An Infinity by Marvin window installer works on replacing a window inside a home.

Design Consultation

Long Island window and patio door replacement

Infinity Replacement sells and custom-builds windows and patio doors to fit your home, with expert guidance and a dedicated customer success manager handling every detail.

Assess current windows and doors

Your consultant will evaluate your current windows for moisture issues, water damage, rot, or structural concerns. They'll also note any energy efficiency or functional issues.

Select installation method

Depending on the condition of your existing windows, they will determine if it's a redesign with a full-frame replacement or one-for-one insert replacement.

Select the right options

From window style to performance glass to hardware finishes, your consultant will walk you through all the design options.

Understand replacement costs

Your consultant will help you price out your replacement and understand how to budget for your project.

Take measurements

Your project manger will visit your home to measure openings, accounting for variances. These measurements will be used to place your order and custom-build your new windows and doors for a proper fit.

Plan an installation timeline

When placing your order, your consultant will give you a detailed timing estimate. We will be in touch with you over the weeks your order is being custom built, keeping you posted on progress and confirming installation dates.

Window Installation

Long Island window replacement installation day

Walk-through

Your project manager will conduct an initial walk-through on installation day and introduce you to your Infinity Replacement installers.

Remove old windows or doors

Our installers will carefully remove your old windows and doors before preparing the opening for new windows and doors.

Installation

Installers fit windows and doors securely. They’ll use flashing and caulk to prevent air and water leaks.

Final walk-through

Your project manager will conduct a final walk-through. We’ll explain how to operate your windows or doors and answer your questions.

Exterior view of a white brick home at dusk with the interior illuminated featuring white Infinity windows.

Ultrex® Fiberglass

Strength and look of fiberglass replacement windows

8x

Ultrex is 8x stronger than vinyl

Millions of fiberglass strands lend strength to your windows for slimmer profiles and broader views.

3x

Acrylic finish is 3x thicker compared to the competition

Infinity's proprietary finish provides a cleaner, smoother look that resists fading — even with the darkest colors.

Infinity's Ultrex fiberglass windows and patio doors deliver lasting performance for Long Island homes

5k less conductive

Ultrex fiberglass is 5,000x less conductive than aluminum

Materials like fiberglass help insulate your home, retaining more heat in the winter and helping you stay cooler in the summer.

Outlasts 48K
UV hours

Smooth, lasting finish

Low-maintenance acrylic finish is 3x thicker than all other options, creating a polished look that resists scratching, denting, and fading, even after 48,000 hours of sunlight.

87% less expansion

Maintains leak-proof fit

Expanding less than both vinyl and Fibrex®, Ultrex frames stay tight and true to your glass panes, maintaining an energy-efficient seal year after year.

Fibrex is a registered trademark of Andersen Corporation.

Infinity Replacement - Long Island reviews

See how our Long Island customers feel about working with Infinity Replacement.

Frequently asked questions

Infinity Replacement makes window installation in Long Island easy. We’re with you at each step of the replacement process — ensuring professional installation. Let Infinity Replacement handle the details of your replacement window project for a proper fit and installation.

You can find patio doors perfect for your home with Infinity Replacement. One of our design consultants can guide you through different types of replacement patio doors best suited for your home and life. Once you decide on the patio door you want, we’ll handle the installation.

Albertson, Amagansett, Amityville, Atlantic Beach, Babylon, Baldwin, Bay Shore, Bayport, Bayville, Bellport, Bethpage, Blue Point, Bohemia, Brentwood, Bridgehampton, Brightwaters, Brookhaven, Calverton, Carle Place, Cedarhurst, Center Moriches, Centereach, Centerport, Central Islip, Cold Spring Harbor, Commack, Copiague, Coram, Cutchogue, Deer Park, East Hampton, East Hills, East Islip, East Marion, East Meadow, East Moriches, East Northport, East Norwich, East Quogue, East Rockaway, Eastport, Elmont, Farmingdale, Farmingville, Floral Park, Fort Salonga, Franklin Square, Freeport, Garden City, Glen Cove, Glen Head, Glenwood Landing, Great Neck, Great River, Greenlawn, Greenport, Greenvale, Hampton Bays, Hauppauge, Hempstead, Hewlett, Hicksville, Holbrook, Holtsville, Huntington Station, Island Park, Islandia, Islip, Islip Terrace, Jericho, Kings Park, Lake Grove, Laurel, Lawrence, Levittown, Lindenhurst, Locust Valley, Long Beach, Lynbrook, Malverne, Manhasset, Manorville, Massapequa, Massapequa Park, Mastic, Mattituck, Medford, Melville, Merrick, Middle Island, Mill Neck, Miller Place, Mineola, Montauk, Moriches, Mount Sinai, Nesconset, New Hyde Park, North Babylon, North Bellmore, Oakdale, Oceanside, Old Bethpage, Old Westbury, Orient, Oyster Bay, Patchogue, Peconic, Plainview, Point Lookout, Port Jefferson, Port Jefferson Station, Port Washington, Quogue, Remsenburg, Ridge, Riverhead, Rockville Centre, Rocky Point, Ronkonkoma, Roosevelt, Roslyn, Sag Harbor, Sagaponack, Saint James, Sayville, Sea Cliff, Seaford, Selden, Setauket, Shelter Island, Shelter Island Heights, Shirley, Shoreham, Smithtown, Sound Beach, South Huntington, Southampton, Southold, Speonk, Stony Brook, Syosset, Uniondale, Valley Stream, Wainscott, Wantagh, Water Mill, West Babylon, West Hempstead, West Islip, West Sayville, Westbury, Westhampton, Westhampton Beach, Williston Park, Woodbury, Woodmere, Wyandanch, and Yaphank.

Nassau County 202006; Suffolk County HI-69330; GC 2799124; HIC 69330, HIC 10643-2023; HIC C1250; HIC 1187; HIC Permit #2025-C-264; HIC Permit #2025-C-265; HIC 171; HIC 1956; HIC 202006; HIC 14499; HIC 100294; HIC L006864; HIC L006959; HIC 10862-2024; HIC 70999; HIC Entity #2585012; HIC 183-C; HIC 8598; HIC 2127531-DCWP; HS-71833; HS-71836; HS-71837; HS-71838; HS-71835; HS-71832; 202006

Infinity Replacement - Long Island offers a variety of front door options in Long Island through TruStile®, a Marvin brand. We can review energy efficient door options and more to help refresh your home’s curb appeal.

Have a question? We’re here to help.

With Infinity Replacement – Long Island, you’ll get a stress-free experience from consultation to installation. Your project starts with a no-hassle appointment — schedule a consultation to get started today!

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