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Frameless Glass

Custom Glass Shower Installation & Design Company Long Island, NY

Takes 5 Minutes or Less!
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We provide the highest quality glass products & services on Long Island

Founded in 2013, GCS has had a tremendous amount of success due to our “can do it” attitude along with our innovative approach to every aspect of the business.

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Lasting Impressions

Replacing just the glass in your shower will give your bathroom a million-dollar look.

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Customer Care

When you work with us, it’s an experience you will love from the initial contact to the final install.

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High Clarity

Don’t forget to ask about our starphire ultra-clear glass. It will change your life.

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Fast Response

Schedule today and let us help you design and install your next project.

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Our Services

At our local glass business on Long Island, we take pride in offering the finest custom shower and mirror services in the area. Our team of Glass Experts specializes in crafting full-sized steam showers, custom gym wall mirrors, single shower panels, glass partitions, vanity mirrors, glass wine cellars, and glass handrails. We are committed to providing you with an exceptional experience from estimate to installation, ensuring a quality product that exceeds your expectations.

Bathroom with frameless shower glass

Clean On Both The Inside & Outside

Shower Glass

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Bathroom remodels can be complex and expensive. For your next project, choose GCS Glass. We offer affordable, custom frameless glass shower designs, enclosures, and doors that can boost the value of your home and elevate the interior. Our shower doors are custom-made, which means your shower door options are endless. You can choose from various shower door styles and glass types, in addition to hardware styles, so your new shower will seamlessly blend with the existing decor in your bathroom.

Design Your Shower Glass
Bathroom with frameless steam shower glass

Get Spa-Like Luxury At Home

Steam Showers

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A luxurious custom steam shower is the perfect choice for your bathroom remodel. At GCS Glass, we design and install custom steam shower enclosures that provide the ultimate spa-like environment. Unlike a prefab steam shower, a custom-built shower enclosure designed by GCS Glass is specifically made for your unique bathroom space.

Design Your Steam Showers
custom double vanity mirrors in a bathroom

Reflect Your Style with Custom Mirrors

Custom Mirrors

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Our team is dedicated to creating unique, custom-designed framed or frameless wall mirrors that will add elegance or functionality to your living room, dining room, bathroom, or home gym. We have extensive experience handling complex mirror installation design projects and will go above and beyond to ensure you’re satisfied with the results.

Design Your Custom Mirrors
Staircase with custom glass railing

Unobstructed Views & Unmatched Elegance

Glass Railings

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Glass railings can instantly transform an outdated home or office space, patio, or balcony, adding a modern look that can open up an otherwise cramped space, providing a classic and clean look that’s more inviting and spacious. At GCS Glass, we offer custom-designed solutions for your glass railing needs. Our glass contractors provide design services that will help you create aesthetically pleasing, structurally integral glass railings for your home, business, and more.

Design Your Glass Railings
Custom glass partition in an office space

Custom Glass Partitions for Your Office

Glass Partition Walls

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Glass partition walls and glass dividers offer a number of advantages over traditional barriers or walls. Partitions are customizable, so the design team at GCS Glass can create a partition in any shape or size, based on your unique needs. Whether you want to create a unique, bold look or add a bit of privacy in your home or office, glass partitions are a great choice that promotes an open, modern atmosphere.

Design Your Glass Partition Walls
Wine cellar in dining room made with custom glass

One of a Kind Wine Displays

Wine Cellars

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Avid wine collectors can invest in custom wine cellars that will provide the perfect environment for their fine wines, allowing them to age properly. At GCS Glass, we can design, create, and install a unique wine cellar for your home or business, that will provide optimal conditions for your wine collection, preventing it from spoiling both in aroma and taste.

Design Your Wine Cellars
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Not sure where to start? No worries, check out our in depth buying guides.

Limited Lifetime Craftsmanship Warranty

GCS Glass warrants our products against defects in materials and workmanship under normal use for as long as it is owned by the original purchasing business or consumer. If a claim is deemed valid, the decision whether to repair or replace is determined by GCS Glass.

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Custom frosted glass railing on the edge of a balcony
Master Bathroom with high end shower with glass on three sides
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Person Measuring Glass

Servicing The Long Island Area

Simply the Best in the Glass Business

We know that quality matters at GCS Glass, and our team on Long Island is committed to making sure you get the perfect glass for your needs. We are a locally owned GCS location that specializes in custom residential glass projects and glass partition & mirror installations.

GCS Glass Of Long Island was built on the principle that the customer experience matters – from start to finish. We pride in our amazing team of glass experts that are trained on quality and craftsmanship.

We strive to serve the Long Island area with the finest quality and craftsmanship, providing custom solutions for each of our clients that perfectly fit their needs. Each of our projects is unique, and we work closely with our customers to ensure that their vision is realized. We also offer a range of after-sales services like repairs and maintenance to keep your glass looking its best. WE ARE GCS!

Feel free to give us a call for a glass shower door design consult or estimate!

Our History

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What People Are Saying About Us

I did everything from my iPhone! Easy peasy!

The team at GCS was so easy to do business with. I did everything from my iPhone. I received quotes for my project with options to choose from. We scheduled appointments by text. Measurements were precise and the glass install looks great. When it was all done I made payments through an app on my phone. Easy peasy.

– Philip Capizzi

Very Accommodating!

Just had our new shower glass and frame installed and we are very pleased. Brendan and Tyler did a great job and we really appreciated them working around the other flooring project we had going on at same time. Very accommodating. The glass and framework looks great. I'm looking forward to using the shower tomorrow with the new look. VERY pleased. The company is very responsive, quick to come out and measure, and got the job done. Thanks!

– Steve Gerhart

A Great Experience!

A great experience from the first estimate, measuring and install. Really well priced and was surprised at how quickly the shower doors were delivered and installed an entire week early. Was very pleased with the entire experience from start to finish.

– Kathleen Ruhl

Super Fast Turnaround Time!

I found this company after looking at many top-rate glass companies in Denver and seeing that I had to fill out forms and wait for them to get back to me. Some took days, and others have yet to call or email back. GCS was easy to text in from the website and talk to someone and get a quote rather quickly with examples over the text message. Within a few mins, I had a quote and an appointment set! That's how you earn the business! Make the initial request EASY and prove what the client is looking for! They were on time for every appointment and were professional. The glass took a few weeks to arrive, but the team kept us in the loop via text and never missed a detail. We are so happy with our choice, and the glass looks fantastic! They even added a complimentary glass coating to keep the soap scum at bay for two years. I'm starting a new project and will use them again in the next few weeks! Highly recommend.

– Alex Tooke

Look No Further!

No need to search any further for a new shower door. Not only is GCS very fair on pricing (believe me, I did my due diligence) but their customer service is out of this world (so rare these days). From working with Chance on pricing, Austin on installing, and Tom on measuring and follow through, everyone was extremely professional. Tom is a perfectionist in the best of ways. His attention to detail is reflective in the quality of work. Thanks team!

– Caitlin Kinnett

Best Experience Ever!

We had the best experience work with GCS Glass! We knew going in some of our product was on back order and would take awhile. We were so impressed with GCS Glasses communication! They always communicated what was going on every time they got an update. We never felt like they “forgot about us” because they were in constant contact. Their workers were great and professional. Price wise they were slightly cheaper than competing companies. We could not be happier with this company.

– Jessica Laue-Flint

Highly Recommend Company

I would highly recommend this company for your shower door. Brandon was quick to respond to my request for quote. He provided excellent details about the options and prices including pictures, all in text so was very convenient.

– Teresa Hastings

Professional staff, Outstanding installers

GCS Glass is the premier company in AZ. Professional staff, outstanding installers. I ordered 3/8" Starphire clear tempered glass, brushed nickel hinges and hardware to match my bathroom fixtures. Emily sent me a detailed invoice with photos of the hardware. This was the finishing touch to the custom bathroom I built. If you want the absolute best GCS will deliver.

– Mark Plennes

Smooth Process, Amazing Quality

We absolutely Love our Glass from GCS Glass Supply. The whole process went so smoothly and the quality is Amazing. Joe and Tim were very responsive each step in the process. The install by Junior and Camden was above our expectations. They were very polite, clean and provided quality craftsmanship. Many thanks GCS Glass. Best regards, Jim & Susan M.

– Jim Mohrig

Transform Your Bathroom by Just Replacing Your Shower Glass Enclosure

Frameless Showers & Doors

Everybody has a shower, but do you have a frameless shower? Let us help you design and create your new custom shower door. Shower doors not only provide elegance to your bathroom but also value. Easy to clean with minimal maintenance. Not like your old typical framed shower door. We also offer the most popular shower in years. THE GRID SHOWER. These showers are the hottest item in home building for the last couple of years and the trend is still climbing. Check out our quick shower door estimate walkthrough for a fast and easy quote. We are conveniently located on Long Island, NY. Call Us Today!

Shower in a bathroom with frameless glass
Shower in a bathroom with frameless glass
Shower in a bathroom with frameless glass

Get Started Today & Have a Quote in 5 Minutes or Less

We pride ourselves in having fast and professional staff that are always ready to help you with your next project.

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Schedule A Virtual Consult With A Long Island Glass Expert Today!

We pride ourselves in having fast and professional staff that are always ready to help you with your next project.

Select the name of the state to view all of the cities we service within that state.

Places of Interest

Long Island, New York, is a vibrant and diverse region known for its stunning beaches, world-renowned wine country, and charming villages. It is home to the scenic Fire Island National Seashore, a barrier island with beautiful beaches, charming lighthouses, and diverse wildlife. History buffs can explore the fascinating past of Long Island at the Sagamore Hill National Historic Site, the former home of President Theodore Roosevelt. The Montauk Point Lighthouse, located at the easternmost point of Long Island, offers breathtaking views and rich history. Wine enthusiasts can tour the North Fork, home to dozens of vineyards like Bedell Cellars and Kontokosta Winery. If you're seeking luxury shopping and dining, head to the Hamptons, known for its celebrity sightings and upscale lifestyle. When it comes to accommodations, Long Island has a wide range of options. Gurney's Montauk Resort offers a luxury beachfront experience with its private beach and spa services. The American Beech Hotel in Greenport provides a boutique hotel experience amidst the wine country. For a more intimate stay, the Baker House 1650 in East Hampton offers a bed-and-breakfast experience in a historic building with beautifully landscaped gardens.

Long island, 10-Day Weather Forecast


  • Long Island MacArthur Airport


  • Heritage Flight Academy which is on 2075 Smithtown Avenue.
  • Helicopter Flight Training which is on 2111 Smithtown Avenue.
  • Jetaway Aviation which is on 2076 5th Avenue.
  • The Creative House which is on 2402 Ocean Avenue.
  • Hounds Town University which is on 12 Garrity Avenue.
  • ATP Flight School which is on 90 Arrival Avenue #901.
  • Eastway Aircraft Services which is on 4175 Veterans Memorial Highway.
  • Mid Island Air Service Inc which is on 101 Hering Drive.
  • Long Island Flying which is on 1965 Smithtown Avenue.
  • SFUSA which is on 101 Hering Drive.


  • Waltess Estates Park which is on Church Street, Lake.
  • Con Pak which is on 1612 Locust Avenue A.
  • Lakeland County Park which is on Johnson Avenue.
  • Islandia Baseball Field and Park which is on 1121 Old Nichols Road.
  • 5th Street Christmas Lights which is on 8A 5th Street.
  • Gold Star Parents Monument which is on 4256 Veterans Memorial Highway.
  • Lt. Michael P. Murphy Memorial Park which is on Lake Shore Road.


  • Bohemia Historical Society Museum which is on 1519 Locust Avenue.
  • Armed Forces Plaza which is on 2285 Chestnut Avenue.
  • Hallock Fitz-Greene Homestead which is on Pond Road.
  • Lake Ronkonkoma Historical Society which is on 328 Hawkins Avenue.
  • Lake Ronkonkoma Heritage Association which is on 4 Cherry Street.

By King of Hearts / Wikimedia Commons / CC-BY-SA-3.0, CC BY-SA 3.0,