Thinking about installing a new shower base? If you're considering an Onyx shower base, you’re not alone. More homeowners and landlords are choosing Onyx for its sleek design, long-lasting materials, and low-maintenance features. But if you’ve never gone through the installation process, you might be wondering what to expect.
This post walks you through each step of an Onyx shower base installation, from preparation to final cleanup. Whether you're doing a full remodel or just upgrading your shower, knowing what happens can help you make informed decisions and avoid delays.
Let’s explore the process so you can plan with confidence.
Why Choose an Onyx Shower Base?
Before diving into the details, it’s helpful to understand why Onyx has become such a popular choice. These bases offer style and strength, with the kind of low-maintenance durability that today’s homeowners want.
Here’s what makes them stand out:
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Fully customizable to fit any layout
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Made from non-porous materials that resist stains and mildew
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Available in a wide range of colors and textures
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Slip-resistant for added safety
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Backed by a lifetime warranty from The Onyx Collection
Whether you’re remodeling a home you just purchased or updating a rental property, Onyx delivers long-term value.
Pre-Installation Preparation
Every successful installation starts with solid preparation. Once you’ve selected your Onyx base and confirmed measurements, the bathroom needs to be ready.
That usually means removing the old tub or shower base. Any leftover adhesive, damaged subflooring, or mold should be cleaned up or repaired right away. It’s critical that the subfloor is dry, stable, and level before moving forward.
Next, your contractor will verify that the drain location lines up with your new base. If not, minor plumbing adjustments might be required. In some cases, they'll do a “dry fit” by setting the base in place temporarily to make sure everything aligns properly.
Want a professional to handle everything for you? Our team at Bathtub Made New can make the entire shower remodeling process easy from start to finish. Reach out through our shower remodeling services page to get started.
Installation Day: What Happens
Once the space is prepped, it’s time for the actual installation. Your Onyx shower base will be carefully brought into the bathroom and placed in position. These bases are heavier than standard fiberglass, so this step usually requires a second person to help guide and level the base.
Before securing it, the installer will apply high-quality adhesive to ensure a strong bond between the base and the subfloor. Once the base is set, the drain assembly is connected and sealed tightly to prevent any future leaks.
From there, the outer lip of the shower base—called the flange—is sealed to the wall framing. This helps keep water from seeping behind the walls. At this point, the base needs time to cure, usually about 24 hours, depending on the products used.
How Long It Takes to Install an Onyx Shower Base
Most Onyx shower base installations are completed within one to two days. This can vary slightly based on the condition of your bathroom or whether additional plumbing or wall work is required.
If you're also installing Onyx wall panels to complete the look, the full job might take three to four days. The good news is that everything is built to fit perfectly, which helps keep things moving quickly once installation starts.
For landlords with multiple units, a fast, high-quality installation means minimal disruption and faster turnover times.
Common Issues and How Pros Handle Them
Some unexpected issues can pop up during installation, but a trained professional will know how to handle them without delay. Here are a few of the most common challenges and how they’re solved:
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Uneven floors: May require shimming or floor leveling before installation.
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Misaligned drain: Could mean adjusting or rerouting plumbing for a proper connection.
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Tight spaces: Professionals use specialized tools and techniques to guide the base into place.
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Heavy lifting: Onyx bases are durable and dense, which means correct handling is essential.
Having an experienced installer ensures these problems are handled quickly and correctly.
Post-Installation Checklist
Once the base is installed and cured, your contractor will go through a quick inspection to make sure everything is functioning as it should.
They’ll check the drain connection, ensure the base is stable with no movement, and confirm that all seals are watertight. After cleaning the work area and removing any leftover materials, they’ll provide basic care instructions to keep your Onyx base looking great.
At this stage, your shower is nearly ready to use. Just be sure to wait until the sealant and adhesive are fully cured before running water in the space.
Caring for Your New Onyx Shower Base
One of the best things about an Onyx base is how easy it is to maintain. Use non-abrasive cleaners to avoid scratching the surface, and wipe down the base after each use to reduce soap and mineral buildup.
Avoid using steel wool or harsh chemical products, as these can dull the finish or damage the sealant. A little bit of regular upkeep goes a long way toward preserving the elegant look of your new shower.
If you drop something heavy, inspect the base for chips or cracks. Onyx is strong, but like any surface, it can be damaged under the right conditions. The good news? Repairs are usually straightforward.
Ready for a Remodel That Lasts?
Installing an Onyx shower base is a smart investment for anyone looking to upgrade their bathroom with style and durability. Now that you know what to expect, you can move forward with confidence and avoid surprises during the remodel.
If you're ready to get started or want help planning your project, our experts are here to help. Reach out through our contact page to schedule your free consultation today.