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How to Deep Clean a Bathroom

Valerie Albarda

By Valerie Albarda
Updated October 31, 2025

Deep cleaning a bathroom prevents the spread of harmful germs, bacteria, mold and mildew, reducing infections and other illnesses. In this guide, we’ll show you how to tackle the dirt and grime, disinfect and leave your bathroom sparkling clean.

Skill

Beginner

Time

Few Hours

Tools and Materials

Note

Product costs, availability and item numbers may vary online or by market.

Why Should You Deep Clean Your Bathroom?

Deep cleaning the bathroom can be a daunting task, but if you go into it armed and ready, half the battle is already won. Make sure you have all the cleaning supplies you need on hand to make the process a more efficient one.

Disinfecting protects you from germs and bacteria like E. coli, salmonella and staphylococcus. Left unchecked, the bacteria and viruses promote the transmission of illnesses through contact with contaminated surfaces like sinks and toilet handles.

Mold and mildew thrive in damp environments. Removing mold is crucial because it can trigger or worsen respiratory issues. It can also compromise the structuralof your home over time if not addressed.

Fall is the perfect time for deep cleaning your bathroom. The air is cool and drier and there’s typically less humidity, so you can open the windows and let the fresh air in. You can also take advantage of open windows for ventilation as you use cleaning products that may have strong and/or potentially dangerous fumes.

We’ve broken deep cleaning the bathroom down into 12 steps. While you don’t have to do them in this order, we’ve found that following a routine helps make the task less challenging.

Step 1: Declutter the Bathroom

  • Clear the sink top and other surfaces.
  • Wipe down toiletries and/or dust, if necessary, bathroom storage containers with a damp microfiber cloth or duster. Throw away expired or empty products.
  • Place any towels and/or laundry in the hamper.
  • Remove bathmats from the floor.

Once the bathroom's surfaces and floor are cleared, you can begin the top-to-bottom deep clean of your bathroom. If you need more storage, we have a helpful guide that may give you a few ideas.

Step 2: Clean the Vent Fan

The ventilation fan is crucial for preventing mold and mildew from growing in your bathroom. It removes moisture from steamy showers and baths as well as unpleasant odors.

Unfortunately, vent fans also take in dust as they pull the moist air out, and that moisture can cause dust to cake on the vent. Over time, it builds up and can limit the effectiveness of your fan. To help alleviate this, you’ll need to clean the vent fan.

  • Remove the vent fan cover. This may require a screwdriver, or the cover may be held on with wires.
  • Use the brush attachment on your vacuum to clean out any loose dust inside the vent, on the fan blades and on the vent cover.
  • Clean the vent cover in the sink with warm water and several drops of mild liquid dish soap and a cleaning brush or cloth. Rinse well and allow it to dry completely before placing it back over the vent.
  • Use a damp microfiber or dust cloth to carefully wipe away any dust on the fan blades and within the vent box.
  • Reassemble your vent fan and replace the cover once everything is completely dry.

Caution

To avoid injury, ensure you switch off the breaker to your vent fan before cleaning.

Good to Know

Some vents don't have fan blades. Instead, they have a cylinder that spins with lots of little blades. Use the model number to look up the user guide online so you can correctly remove and replace it. You can then vacuum out the cylinder blades and wipe them clean with a damp cloth.

Step 3: Clean the Bathroom Walls and Baseboards

Moisture from the shower traps airborne particles like hair and skin cells, causing them to cling to the wall and other surfaces. This creates a sticky film that’s hard to remove and attracts dirt, soap scum, mildew and even more dust.

First, use a microfiber cloth to remove any loose dust and cobwebs from the wall. How you clean your bathroom walls depends on the material.

If your bathroom walls are painted:

  • Mix warm water and several drops of mild liquid dish soap in a bucket to create soapy water. Dip a soft cloth or sponge in the water, then thoroughly wring it out.
  • Wash the wall in a circular motion while applying gentle pressure. Continue until the entire wall has been cleaned.
  • Continue by cleaning the baseboards. For cleaning scuff marks, apply baking soda to a damp cloth or a cleaning pad and gently rub.
  • Finish with a clean, damp cloth to remove any leftover cleaner on the walls or baseboards.

If your bathroom walls are tiled:

  • Mix warm water and several drops of mild liquid dish soap in a spray bottle. Spray the tile and wipe it with a soft microfiber cloth.

Step 4: Clean the Sink – Part 1

Bathroom sinks harbor lots of bacteria from things like tap water, handwashing, teeth-brushing, flushing, and other things that cause buildup. Using 3% hydrogen peroxide is great for disinfecting the sink because it breaks down biological materials.

To disinfect your bathroom sink,

  • First, clean the sink and surrounding surfaces well with a mix of warm water and a few drops of liquid dish soap. For areas that are difficult to reach, like behind faucets, use a toothbrush. Rinse well to remove all soap residue.
  • Next, apply a disinfectant. Use a commercial disinfectant, or you can make your own. If using a commercial disinfectant, follow the manufacturer’s label instructions.
  • To make your own disinfectant, mix 3% hydrogen peroxide and a squirt of liquid dish soap in an empty spray bottle and shake well. Spray down the entire surface of your sink and any counter areas and allow it to sit.

You’ll come back to the sink after giving the disinfectant time to work.

Caution

Dispose of any unused disinfectant made with 3% hydrogen peroxide and liquid dish soap (or any other substance). As peroxide decomposes, it may rupture, spontaneously combust, or potentially create toxic compounds. Never use 3% hydrogen peroxide on wood, natural stone, colored fabrics or metal.

Caution

Avoid mixing chemicals like 3% hydrogen peroxide, bleach or ammonia as these combinations are toxic. Be sure to thoroughly rinse surfaces of any cleaner residue before using other types of cleaners. When using 3% hydrogen peroxide, be careful not to get it on your clothes or bathroom linens, as it can discolor fabric.

Tip

If you need to unclog your sink or bathtub, do so before cleaning. For step-by-step instructions, see our guide, How to Unclog a Sink: 7 Easy Tips to Try.

Step 5: Clean the Toilet – Part 1

To disinfect the toilet:

  • Apply a disinfectant cleaner generously under the lip of the toilet bowl and all the way around the entire rim. Make sure you cover the entire surface of the bowl.
  • Let the disinfectant sit and move on to another area.

As with the sink, you'll come back to the toilet after giving the disinfectant time to work.

Tip

Cleaners with an angled pour spout make it easy to get the cleaner under the lip of the bowl.

Tip

It can take from 15 seconds to 10 minutes or more for disinfectants to disinfect and kill germs and bacteria. So that’s how long you’ll want to leave a disinfectant spray sitting on a surface. Check the label on your favorite product for disinfecting times since the recommended contact or wet time can vary from product to product.

Step 6: Clean the Showerhead

White vinegar is amazing at breaking down mineral deposits, so it's great for unclogging hard water deposits in shower heads.

  • Pour distilled white vinegar (no need to dilute it) into a plastic sandwich bag and secure it around the shower head with a rubber band. Be sure the shower head is completely submerged. If your showerhead is a removable wand, remove it and place it in a bowl filled with white vinegar.
  • Allow this to soak for at least an hour so it can dissolve the mineral deposits. Remove the bag and scrub away any remaining buildup with an old toothbrush. Turn on the shower to flush away the remains thoroughly.

Step 7: Clean the Bathtub and Shower

A clean bathtub and shower can make your bathing experience so much more pleasant and hygienic. You'll want to wash the plastic shower curtain liner with old towels in the washing machine and hang it to dry. If it’s beyond the washing phase, replace it

  • Spray down the shower walls and doors, if you have them, with the peroxide and dish soap spray or other shower cleaning spray.

Use a scrub brush or a gentle scrubbing sponge to clean the walls and doors, then rinse well with water. To prevent streaks, use a squeegee to remove water from the shower walls and doors.


  • If you have shower doors, use a small scrub brush or toothbrush to clean the door track. Use vinegar to help break down any mineral deposits and soap scum that may have accumulated. Rinse well with water.
  • Spray the floor of the shower, deep clean the bathtub and the surrounding ledge with peroxide and dish soap or shower cleaning spray.
  • Use a scrub brush or soft sponge and rinse well with water.
  • To clean grout, mix equal parts warm water and white vinegar in a spray bottle, spray on the grout and let it sit for a few minutes. Scrub with a grout brush or an old toothbrush, then rinse well with warm water.

Good to Know

To keep grout lines looking their best, it’s easy to reseal them. Make sure the existing grout is clean and dry. Next, apply a generous coat of sealer directly on the grout lines and let it soak in for 3-5 minutes, then wipe off the excess sealer. Allow the first coat to dry. Apply a second coat. Wipe away the excess. Check the manufacturer’s instructions for cure time. Perform a water test by sprinkling a few drops of water on the grout. If it beads, it’s sealed. If the water is absorbed, the grout isn’t properly sealed.

Shower Cleaning Sprays

Tile & Grout Brushes

Squeegees

Shower Curtain Liners

Step 8: Clean the Sink – Part 2

The disinfecting cleaning spray has had time to loosen up any biofilm and soap scum on the sink and counter. Go over the sink and countertops with a damp sponge or cloth. Thoroughly rinse the sink and surrounding surfaces with warm water to wash away the disinfectant. Dry with a clean microfiber cloth.

Step 9: Clean the Toilet – Part 2

Now that the inside of the toilet has had sufficient time to disinfect, it’s time to finish cleaning it.

  • Use a toilet brush to scrub the inside of the toilet bowl, from under the lip all the way into the drain.
  • Rinse the toilet brush head in the swirling water as the toilet flushes. Spray the outside of the toilet, including both sides of the seat and lid, with your bathroom cleaner of choice. Make sure to also spray the sides and base of the toilet.
  • Use microfiber cloths to clean the seat, lid and outside of the toilet and tank.

Tip

To clean the toilet brush, spray it thoroughly with the disinfectant and let it sit inside the toilet bowl for 10-15 minutes. Rinse it well under hot water in the tub or shower for 30 seconds to one minute. Let it dry thoroughly before placing it back in the holder. Give your tub/shower a quick spray of cleaner and rinse.

Step 10: Clean the Mirrors and Fixtures

For clean mirrors, use commercial glass cleaner or spray a 1:1 mixture of white vinegar and distilled water to a paper towel or clean microfiber cloth and wipe until they’re dry and streak-free. Use disinfectant wipes to wipe down doorknobs, cabinet handles, light fixtures, shades and light switches.

Step 11: Clean the Floor and Empty the Trash Can

Sweep or vacuum the floor to remove dust, dirt, hair, etc. Empty the trash can and ensure there’s no trash lying about. Next, clean or mop the floor as recommended for your flooring type (ceramic tile, luxury vinyl tile, engineered hardwood flooring, etc.). Allow the floor to dry.

Step 12: The Final Touches

Now that the bathroom is deep cleaned and the floor is dry, place everything back where it belongs. Avoid creating clutter. Add special touches to give the bathroom a spa-like quality:

  • Add fresh flowers in a vase, place a fresh orchid on the vanity or add other plants that thrive in high humidity and low light conditions (ferns, spider plant, philodendron, etc.).
  • Refill the toilet paper holder and add a few drops of essential oil to the inside of the toilet paper roll.
  • Hang or roll plush, clean bath towels.
  • Light a scented candle.
  • Place a clean bathmat in front of the bathtub.
  • Hang artwork that inspires.

Your Deep Cleaned Bathroom

A deep-cleaned bathroom not only looks great but helps maintain a healthier home. It’s a daunting task, but a necessary one. As you deep clean, you’re also killing harmful germs and bacteria, reducing the risk of infections and skin diseases. Deep cleaning includes the following steps:

  • Step 1: Declutter the Bathroom
  • Step 2: Clean the Vent Fan
  • Step 3: Clean the Bathroom Walls and Baseboards
  • Step 4: Clean the Sink – Part 1
  • Step 5: Clean the Toilet – Part 1
  • Step 6: Clean the Showerhead
  • Step 7: Clean the Bathtub and Shower
  • Step 8: Clean the Sink – Part 2
  • Step 9: Clean the Toilet – Part 2
  • Step 10: Clean the Mirrors and Fixtures
  • Step 11: Clean the Floor and Empty the Trash Can
  • Step 12: The Final Touches

The best time to deep clean is in the fall; however, you can also repeat these steps seasonally to prevent the buildup of germs and bacteria and keep your bathroom sparkling.

Ready to get started? We have the supplies for all your deep cleaning needs. Shop online or stop by your local Lowe’s and pick up everything from mops to microfiber wipes. Don’t forget to ask a friendly Lowe’s Red Vest associate if you need help finding anything on your shopping list.

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