Can Syn-Mar Showers Be Customized to My Space?

August 17, 2026

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When embarking on a residential remodel, homeowners and contractors quickly discover a universal truth: no two bathrooms are exactly alike. Walls are rarely perfectly plumb, floors are often uneven, and standard, off-the-shelf enclosures simply do not accommodate unique footprints. This reality leads to one of the most frequent questions we receive: “Can Syn-Mar showers be customized to my exact space?”


The answer is a definitive yes. Since 1977, Syn-Mar Products has been manufacturing high-quality, grout-free shower systems from our facility in Ellington, CT. We understand that true quality means building to your specifications, not forcing your design to fit a rigid mold. Here is a closer look at exactly how we tailor our materials to perfectly fit your residential remodel.

Engineered for Your Exact Dimensions

Customization is not an afterthought for us; it is the core of our manufacturing process. We produce premium materials designed specifically to adapt to the unique architectural quirks of your home.

1. Tailored Custom Shower Bases

A watertight, reliable shower enclosure must start with a solid foundation. Instead of relying on standard sizing, we manufacture custom shower bases tailored to your bathroom's specific footprint. Whether your design requires an off-center drain, an angled corner, or an expansive walk-in layout, our tile-ready shower bases are engineered to provide a seamless, grout-free floor. This ensures maximum durability and completely eliminates the leak risks associated with associated with a tiled shower pan.

2. Adaptable Grout-Free Shower Walls

To complement your custom base, our shower wall systems are intentionally produced oversized. This manufacturing decision empowers your contractor to scribe and cut the panels directly on the job site for a flawless, precision fit to accommodate your precise framing. By utilizing our grout-free shower systems, you completely eliminate porous grout lines—resulting in a stunning aesthetic and an incredibly easy-to-clean environment. 

The Advantage of Direct Manufacturing

Industrial workshop with metal shelving and tables, centered under a hanging American flag.

Our ability to consistently deliver high-quality, custom-sized products comes directly from our operational structure.


We proudly serve plumbing wholesalers and kitchen and bath dealer showrooms across all of New England, NY, NJ, and Eastern PA. Unlike many of our competitors who push their products through third-party sales distribution companies, we sell direct to our dealer partners. This direct relationship eliminates the middle-man, ensuring that your custom measurements, color selections, and project details are communicated clearly and executed flawlessly.


Furthermore, we are strictly a manufacturer, not a remodeler or installer. This means 100% of our expertise is focused on engineering the best possible materials for your space, backed by our solid 5-year warranty. 

Seamless Vanity Tops for a Unified Design

If you are updating your shower, you are likely updating your vanity area as well. To carry the low-maintenance, high-quality aesthetic throughout the entire room, we highly recommend pairing your custom shower with one of our seamless vanity tops. By integrating the sink and counter into one solid piece, our seamless vanity tops mirror the benefits of our showers, giving your remodel a cohesive, premium finish. 

Ready to Start Your Custom Remodel?

Transforming your bathroom with a custom, grout-free shower system has never been easier. If you are a homeowner ready to upgrade to a cleaner, lower-maintenance space, please utilize the "Find a Dealer" tool on our website. This tool will connect you with a premium dealer showroom in your area who can guide you through our beautiful color options and place your custom order. 


If you are a B2B professional looking for a reliable manufacturing partner that sells direct, reach out to our team today. We sell direct to dealer partners. Learn how our high-quality grout-free shower systems can elevate your showroom offerings without the hassle of a middleman distribution company. 

Frequently Asked Questions

  • Can Syn-Mar showers be customized to my space?

    Yes. We specialize in manufacturing custom shower bases and shower wall kits designed specifically to fit the exact footprint of your residential remodel.


  • Will Syn-Mar measure or install my custom shower?

    No. We are a manufacturer, not a remodeler or installer. A qualified contractor will measure your space and handle the installation of our products.  

  • Is there a warranty on your customized products?

    Yes, we proudly offer a 5-year warranty on our manufactured products.  

  • Can I purchase a custom shower system directly from Syn-Mar?

    No, we do not sell retail to the public. We sell our products strictly through trusted B2B channels. Homeowners can easily purchase our products through a partnered dealer.  

Why Choose Syn-Mar?

Syn-Mar Products is a third-generation, family-owned manufacturer of grout-free shower systems, custom shower bases, and seamless vanity tops. Since 1977, we've manufactured engineered stone products in Connecticut and proudly supplied dealer partners throughout the Northeast.


We operate strictly as a direct manufacturer, not a remodeler or installer. For our B2B plumbing wholesalers and showroom partners, this means we sell direct to you—unlike competitors who rely on middle-man distribution companies. We stand behind our high-quality craftsmanship with a 5-year warranty.

Ready for a Beautiful, Grout-Free Bathroom?

Syn-Mar products are supplied exclusively through our trusted network of B2B dealer partners. If you are a homeowner looking to upgrade your space with White Onyx, connect with an authorized dealer today. 


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