How To Clean Onyx Shower: 5 Simple Steps (Do This!)

In the true meaning of the word, onyx shower refers to a shower with walls and a pan made of onyx stone. However, when talking about onyx showers, most people refer to those manufactured by Onyx Collection. The brand’s materials mimic real stone and provide the same luxurious feel, but the shower is not made of real onyx.

When it comes to cleaning an Onyx shower pan and shower walls, though, many owners wonder what products to use to prevent damaging the finish. The guide below will show you how to clean your Onyx shower without scratching or damaging the surface.

How To Clean Onyx Shower

This is how to clean an Onyx shower in five easy steps:

1. Clear the Clutter

The first thing to do when cleaning your Onyx shower is to clear any eventual clutter. If you’re used to keeping lots of shampoo and shower wash bottles in the stall, alongside used razors, loofahs, and other miscellaneous items, remove them all before cleaning.

You should also remove the shower caddy if you have one. Bearing the shower walls and base makes it easier to clean all nooks and crevices. You can place them back in the stall once you’re done.

2. Clean Soap Scum and Gunk with White Vinegar

Onyx showers are made of an alumina trihydrate (the same ingredient used in Corian) and polyester resin blend. The material is durable and easy to care for, but it is sensitive to harsh cleaning products. For this reason, the best way to clean an Onyx shower is with a white vinegar solution.

Mix white vinegar with water in a 1:1 solution. Use this mixture and a soft sponge to scrub off all soap residues and gunk from the shower walls.

To make cleaning an Onyx shower base from soap scum and gunk easier, you can plug the stopper and pour some vinegar mixture into the pan. Let it soak for about 5-10 minutes to soften the residues – this will make it easier to wipe clean the shower base.

White vinegar can also kill mold spores and bacteria; thus, you should clean the shower walls and base with this solution once or twice a month to sanitize your shower.

3. Eliminate Hard Water Stains with Windows Cleaner

While vinegar can dissolve hard water stains, wiping off all streaks is often challenging. That’s where the window cleaner steps in.

Most window cleaners on the market are formulated to wipe off dust and stains without leaving streaks. Spray the product on the shower walls and wipe the shiny surface with a microfiber cloth or a glass cleaning tool.

You don’t have to rinse when you’re done. The product will dry out, leaving a shiny finish behind.

4. Apply A Protective Layer

Onyx showers are easy to clean and durable, but the brand recommends treating the panels with an appropriate polishing product (Gel Gloss or similar) after each cleaning.

The polishing product protects the Onyx material, making it harder for soap scum and scale to stick to it.

Gel Gloss is very easy to apply. Simply pour some product on a dry cloth and spread the polish all over the shower walls and base. Let it dry thoroughly before using the shower.

While the brand recommends applying the polish after each in-depth cleaning (roughly every fortnight or once a month, depending on the water hardness in your area and other potential problems, such as mold), you should at least apply it once every six months to maintain the surface shiny and easier to clean.

5. Clean With Mild Soap After Each Use

The steps above refer to the deep-cleaning of your Onyx shower. The deep cleaning frequency can vary, depending on the water hardness in your area and other factors, but most homeowners find that deep-cleaning their shower every fortnight or once a month will suffice if you clean it thoroughly with mild soap after each use.

You can use any type of soap or other mild detergents, including mild dishwashing liquid. Scrub soap scums and hard water stains with a soft sponge and rinse with abundant clean water.

Keep in mind that your shower must dry completely after each use to prevent the growth of mold and bacteria. So, if you’ve used Onyx panels to build a shower cabin, leave the cabin’s door open and, preferably, the extractor fan on or at least open the bathroom window to promote airflow after each shower.

Household Onyx Stone Usage

Onyx Collection showers mimic the natural stone, but real onyx isn’t recommended to use in a shower stall. This stone type is porous and susceptible to stains. For this reason, real onyx in a shower requires very high maintenance.

Not only will you have to thoroughly rinse soap and shampoo scums, but mold spores can infiltrate the stone’s pores creating a serious mold issue. In addition to prompt cleaning of all stains, you’ll have to treat the stone with impermeable coatings every six to 12 months.

But while real onyx doesn’t find its place in the shower, you could use it in other areas of your home.

Feature Walls

Onyx panels are available in a rainbow of colors that can suit any interior. An onyx feature wall can add originality to your interior, whether you decide to add it to your living room, dining area, or even in the bedroom. A nice idea, for instance, is to cover the wall around your fireplace in onyx panels.


Kitchen and bathroom countertops made of onyx are almost as resistant as marble ones and equally fascinating. Like onyx showers, onyx countertops require constant maintenance to prevent staining. You should pay particular attention to a kitchen counter because oil, grease, tomato sauce, and some juices can soak into the stone and cause permanent damage.

Kitchen Backsplash

Another amazing way to use onyx in your home is a kitchen backsplash. Treat the stone with an impermeable lacquer to prevent staining.


Onyx slabs are also an excellent choice for an elegant floor. This material can give your home a luxurious feel, replacing traditional tiles or parquet. If you find stone floors a bit too cold, you can combine onyx with wood to create an original composition.

Light Fixtures

Thinner onyx panels are generally translucent, allowing some light to pass through. This characteristic makes onyx lighting fixtures an interesting choice for ambiance lighting. You can choose from a variety of sconces, lamps, and ceiling lights.


Lastly, you should also consider onyx furniture. From coffee tables to stools, the market spoils you with choices. Home accessories and homeware made of onyx are also a thing. Thus, you have plenty of options to incorporate this stone into your home.

Onyx Showers vs. Tiled Showers

The Onyx showers may not be made of real onyx, but they still come with advantages compared to tile showers. Here are some of the most important differences.


Onyx showers give your bathroom a more streamlined appearance compared to tile. The smooth panels have a linear, contemporary feel and visually increase the available space. Onyx showers are also available in more colors than tiles, allowing you to achieve a customized look.


Both tile showers and Onyx showers are easy to clean, but Onyx wins some points thanks to the absence of grout. In fact, grout absorbs water and can create several problems, including mold issues.


In addition to easier cleaning, Onyx showers are also easier to maintain. As explained above, grout absorbs water. Besides potential germ issues, the water absorbed can affect the tile adhesive, causing them to fall off. Onyx panels are impermeable, so you won’t have to worry about them falling apart.


Tile and Onyx showers can last for decades if maintained correctly. However, Onyx showers tend to be more durable.


When it comes to costs, tile showers are definitely more affordable. Installing a tile shower would cost you about $12 per square foot. Comparatively, Onyx showers cost about $25 per square foot – as long as you’re opting for the brand’s standard shower line. Custom Onyx Collection showers are even more expensive. The investment is worth it, though.


What is the best cleaner for an Onyx shower?

A mild soap is the best cleaner for your Onyx Collection shower. You can also use white vinegar or a window cleaner.

How do you remove hard water stains from Onyx?

Hard water stains are best removed with a window cleaner after you’ve cleaned the shower walls and base with a white vinegar solution. Wipe the entire surface with a cloth dampened in the window cleaner and let it air dry.

Can you use Scrubbing Bubbles on onyx?

Yes. Scrubbing Bubbles is a non-abrasive cleaner suitable to use for your shower, bathtub, and other surfaces that need deep cleaning and disinfecting.

Can Gel Gloss be used on Onyx?

Yes. In fact, the brand recommends using Gel Gloss after each cleaning to protect the shower panels’ surface.

How do you disinfect onyx?

A white vinegar solution is your best choice, although you can also use general-purpose disinfectants and mild household cleaners.


Cleaning an Onyx shower isn’t hard. The smooth surface and the lack of grout make it easy to keep your shower stall pristine. We hope this guide has taught you which cleaning products to use and which to avoid to prevent damaging your fixture.

Related Reading: Pros and Cons of Onyx Showers

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