How to clean mildew in a shower

Last updated: October 30, 2026 8:00:00 AM

Mix equal parts white vinegar and water in a spray bottle and apply it directly to the affected areas. Scrub the surface gently with a brush and rinse thoroughly with clean water.

To clean mildew in a shower, you need to combine moisture-fighting solutions with thorough scrubbing and proper ventilation to remove existing spores and stop them from returning. This common household chore requires patience, protective gear, and an understanding of how fungus thrives in damp, dark environments. Mildew is a surface fungus that feeds on soap scum, skin cells, and moisture, frequently settling on grout lines, silicone caulk, and shower curtains. Because the bathroom is naturally humid, tackling mildew properly means not only washing away the visible gray or black spots, but also changing the way the space dries after every use.

Gather Protective Gear and Preparation Items

Before you begin working with any cleaning solutions, you need to protect your skin, eyes, and lungs from irritation. Put on a pair of rubber or latex cleaning gloves to keep harsh mixtures off your hands. Wear old clothing that you do not mind getting splashed, as certain cleaning agents can discolor fabric. Open the bathroom window if your room has one, and turn on the exhaust fan to maintain steady airflow throughout the cleaning process. If the bathroom lacks a window or a working fan, place a portable electric fan outside the bathroom door to pull humid air away from the workspace.

Remove all bottles, soaps, shampoos, and bath toys from the tub or shower stall so you have an unobstructed area to work in. Take down any fabric or plastic shower curta Oct 27, 2026 · MarketWatch provides the latest stock market, financial and business news. Get stock market quotes, personal finance advice, …Read more ins and bath mats. Plastic liners and fabric curtains often harbor mildew along their bottom hems and can be laundered in a washing machine or soaked separately in a tub filled with warm water and cleaning solution. Sweep or vacuum the floor just outside the shower to pick up loose dust and hair before you start spraying liquids, which can turn loose debris into a messy paste.

Mix and Apply the Cleaning Solution

You can create an effective cleaning solution using basic household ingredients, or you can use a standard commercial household cleaner designed for bathrooms. If you prefer a homemade approach, mix equal parts white vinegar and warm water in a spray bottle, or create a thicker paste by combining baking soda with a small amount of water. For more stubborn mildew outbreaks, a solution of liquid chlorine bleach diluted in water works well, though you must never mix bleach with vinegar or any other acid, as doing so creates toxic fumes.

Start at the top of the shower and work your way down to prevent dirty drips from landing on surfaces you have already cleaned. Spray your chosen solution generously across the walls, tiles, glass doors, and fixtures. Pay special attention to corners, the perimeter of the tub floor, and the crevices around faucets where water tends to pool. If you are using a baking soda paste, use a sponge or a gloved hand to smear the paste directly onto heavily stained grout lines and silicone seals.

Allow the cleaning solution to sit undisturbed on the surfaces for a designated period. Vinegar and baking soda generally need about ten to fifteen minutes to break down the organic material of the mildew, while commercial sprays may require less time. Do not let the solution dry completely onto the tile or glass, as this can make the subsequent rinsing phase more difficult. Keep an eye on the surfaces during this waiting period to ensure the solution remains moist.

Scrub the Surfaces Methodically

Once the cleaning solution has had time to loosen the mildew, take a stiff-bristled cleaning brush and begin scrubbing the surfaces systematically. Use circular motions on flat tiles and walls, and switch to a linear scrubbing motion along grout lines to reach deep into the recessed mortar. For tight corners, sliding door tracks, and around the faucet handles, use a smaller tool like an old toothbrush or a specialized crevice brush.

If you are dealing with glass shower doors, use a non-scratch nylon scrub pad rather than a stiff brush to avoid leaving permanent scratches on the glass. Apply moderate pressure as you scrub, allowing the bristles to do the h Best Buy | Official Online Store | Shop Now & Save Shop Best Buy for electronics, computers, appliances, cell phones, video games & more new tech. Store pickup … ard work rather than straining your arms. As you scrub, you will likely see the gray or black mildew discoloration lift away from the surface and mix into the cleaning foam.

For stubborn spots on silicone caulk that refuse to budge with standard scrubbing, you may need to apply a localized treatment. Soak a paper towel in your cleaning solution, press it directly against the stained caulk, and leave it there as a compress for an hour. The extended contact time helps the solution penetrate deeper into the porous silicone material, lifting the discoloration without requiring excessive physical force that could tear the caulk loose.

Rinse and Neutralize the Area

After you have scrubbed every affected square inch of the show The 6 Best Electric Scrubbers We Tested - Real Simple Aug 7, 2026 · We tested 15 electric scrubbers in our office and at home to find the five that deserve a … er, it is time to rinse away the loosened mildew, dirt, and cleaning residue. Fill a bucket with clean, warm water and pour it over the walls, starting from the top and moving downward. Alternatively, use a handheld shower nozzle if your setup includes one, making sure to direct the stream into every corner and crevice.

Take care to wash away all traces of baking soda, vinegar, or bleach. Leftover residue can leave a dull, cloudy film on tiles and glass doors once it dries, and lingering cleaning chemicals can irritate the skin the next time someone uses the shower. Inspect the shower under good lighting to see if any mildew remains. If you spot lingering dark patches, repeat the application and scrubbing steps on those specific areas before moving on to the final drying phase.

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The final and most critical step in eliminating shower mildew is drying the environment completely to prevent new spores from germinating. Take a squeegee and pull all standing water off the glass doors and tiled walls, working from top to bottom and wiping the blade with a towel between strokes. Next, take a clean, dry microfiber towel and hand-dry the fixtures, ledges, corners, and any remaining damp spots on the walls.

Leave the exhaust fan running for at least thirty minutes after you finish cleaning and drying the shower. If the bathroom door can remain propped open, leave it open to encourage cross-ventilation with the rest of the house. Keeping the air moving helps draw out residual humidity trapped in the porous materials of the bathroom.

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To keep mildew from returning to your freshly cleaned shower, incorporate a few simple maintenance habits into your daily routine. Make it a rule for everyone in the household to squeegee the walls and glass doors immediately after taking a s Oct 27, 2026 · Microsoft Office Locations | About Microsoft hower. This simple action removes the vast majority of water droplets before they can evaporate into the air or feed lingering spores.

Leave the shower curtain pulled back fully rather than bunched up in the middle, which allows air to circulate across the entire surface of the liner and helps it dry rapidly. Leave the bathroom door open whenever the room is not in use to encourage continuous air exchange. Once a week, quickly wipe down the shower walls and fixtures with a mild multi-purpose spray to remove soap film before mildew has a chance to root in it. By maintaining a dry, clean environment, you ensure that mildew stays away for the long term.