How to Clean a Bathtub

a person cleaning a bathtub

A bathtub can go from “that’s fine” to “absolutely not” quicker than you’d expect. A bit of soap, a bit of water, and suddenly you’ve got cloudy streaks, weird marks, and corners you’d rather not look at too closely.

The good news is that it’s not hard to fix. Who says you need a shelf full of products or loads of time? Just a tried-and-tested method and a bit of consistency are all it takes. It’s not just about looks either. Keeping your tub clean helps keep bacteria and mould in check. Here’s how to clean a bathtub the right way. 

Before You Start: Identify Your Bathtub Material

Quick check before you kickstart this home cleaning task. Not all tubs can handle the same treatment.

Most homes around Melbourne will have one of these:

  • Acrylic
    Common and lightweight. Easy to clean, but scratches if you go in too hard.
  • Porcelain or enamel
    Tough and durable. Can handle more, but stains tend to stick if ignored.
  • Fibreglass
    Softer surface. Needs a gentle hand and mild cleaners.
  • Stone or resin
    Looks great, but a bit high-maintenance. Skip anything too harsh.

If you’re not sure what you’ve got, just play it safe. Soft cloth, gentle cleaner. No need to test your luck.

What You’ll Need

You don’t need to overthink this. Most of it’s probably already under your sink.

Basic tools:

  • A soft sponge or microfibre cloth
  • A non-abrasive brush
  • A spray bottle

Cleaning options:

  • Dish soap and warm water
  • White vinegar and baking soda, used separately
  • A gentle bathroom cleaner from the shops

For tougher spots:

  • Hydrogen peroxide
  • A magic eraser, but go easy with it

Step-by-Step: How to Clean a Bathtub

Before you start, clear out any bottles or items sitting in the tub. Makes life easier straight away.

  1. Give it a warm rinse
    This loosens up the surface grime straight away.
  2. Apply your cleaner
    Spray or spread it across the tub. Don’t forget the sides; that’s where buildup loves to hang out.
  3. Leave it alone for a few minutes
    Five to fifteen minutes is enough. Let the cleaner do the work so you don’t have to.
  4. Scrub, but keep it chill
    Circular motions, light pressure. No need to attack it.
  5. Sort out the problem spots
    Corners, around the drain, along the edges. The usual suspects.
  6. Rinse it properly
    Leftover cleaner just turns into streaks later. Not worth it.
  7. Dry it off
    Quick wipe with a cloth. Takes a minute and makes a huge difference.

Best Cleaning Solutions: Natural vs Commercial

Honestly, both options work. It just depends on what you prefer.

Natural options:

  • Vinegar is great for breaking down buildup. Use it straight, or mix equal parts vinegar and warm water in a spray bottle.
  • Baking soda gives a bit of gentle scrubbing power. Sprinkle a thin layer directly onto the surface before scrubbing.
  • Lemon smells better and still does the job. You can rub half a lemon directly on stains or mix lemon juice with a bit of baking soda to form a light paste.

Baking soda and vinegar both work well, but not really together. Use baking soda first to scrub, then follow with vinegar to break down any leftover residue.

Commercial cleaners:

  • Work faster on stubborn grime
  • Designed for specific surfaces
  • Usually need less effort

If you’re using one, here’s what to look out for:

  • Make sure it’s non-abrasive
  • Check it suits your tub material, especially acrylic or fibreglass
  • Avoid anything too harsh or heavily fragranced
  • Stick to one product at a time; don’t mix cleaners

How to Remove Common Bathtub Stains

Some marks need a bit more attention. Here’s how to deal with the usual ones:

Soap Scum

That dull, cloudy layer that doesn’t budge no matter how many times you rinse it.

  • Start by spraying vinegar over the surface
  • Leave it for at least 10 to 15 minutes. Longer if it’s built up
  • Sprinkle a bit of baking soda over the area for extra grip
  • Scrub gently with a sponge or soft brush
  • Rinse and check. You might need to go again

If it’s still hanging around, repeat the process instead of scrubbing harder. Soap scum softens over time, not with brute force. For really stubborn spots, use a non-abrasive cleaner and let it sit a bit longer before scrubbing.

Hard Water Stains

You’ll see these as chalky white marks, especially if your water’s mineral-heavy.

  • Spray or soak the area with vinegar
  • Let it sit for 10 to 15 minutes so it can break down the minerals
  • For heavier buildup, lay a vinegar-soaked cloth over the stain to keep it wet
  • Light scrub with a sponge or soft brush
  • Rinse thoroughly and check the area

If it’s still there, repeat instead of scrubbing harder. These stains come off in layers, not all at once.

Mould and Mildew

You’ll usually find these uninvited guests hiding in corners or along seals.

  • Apply hydrogen peroxide or a diluted bleach solution only on suitable surfaces
  • Let it sit for 5 to 10 minutes so it can kill the mould properly
  • Scrub gently, focusing on grout lines and seals
  • Rinse well to remove any residue

Pay extra attention to grout and silicone seals. That’s where it tends to come back.

Keep the bathroom ventilated while you’re doing this. Open a window and turn the fan on.

Rust Stains

Not super common, but they do show up now and then.

  • Make a paste with baking soda and a small amount of water
  • Apply it directly to the stain and let it sit for 10 to 15 minutes
  • Wipe or lightly scrub with a soft cloth
  • Rinse and repeat if needed

If it’s stubborn, a non-abrasive cleaner can help. Don’t scrub aggressively. You don’t want to damage the surface. 

a bathroom with stains

Common Mistakes to Avoid

A few things that seem harmless but really aren’t:

  • Using rough scrubbers like steel wool
  • Mixing cleaning products.
  • Skipping the rinse step
  • Letting products sit way too long
  • Ignoring what your tub can actually handle

If something feels a bit over the top, it probably is.

How Often Should You Clean Your Bathtub?

You don’t need a strict schedule, but a rough routine helps.

  • Once a week for a quick clean
  • Every couple of weeks for a deeper one
  • After heavy use, just rinse it down

If there are more people using the bathroom, or your water’s on the harder side, you’ll need to clean it a bit more often.

Simple Maintenance Tips to Keep it Cleaner Longer

  • Rinse the tub after you use it
  • Wipe it down if you’ve got the energy
  • Use a daily spray if you like shortcuts
  • Let the bathroom air out properly
  • Fix any drips before they turn into stains

When to Call Professional Cleaners

Sometimes it’s just easier to hand it off to the pros. 

You might want to bring in help if:

  • Stains aren’t budging no matter what you try
  • Mould keeps coming back
  • You’ve got better things to do with your time
a modern, clean bathroom

Tub Trouble? Call Simone’s Cleaning Services

If you’ve hit the point where it’s more of a battle than a quick job, it might be time to call in the pros. 

Here’s why Simone’s Cleaning Services is the go-to choice in Melbourne:

  • Family-owned Melbourne business, running since 2017
  • Offers tailored cleaning plans, whether you need a one-off deep clean or regular upkeep
  • Covers more than just bathrooms, including end of lease cleaning, strata cleaning, oven cleaning, window cleaning, and NDIS home cleaning. 
  • All employees are equipped with specialized training to execute the highest level of service amongst our expanding clientele. 

If your bathtub’s gone past the “quick scrub” stage, getting professionals in can reset everything and make it much easier to stay on top of it after. Contact us to book a cleaning schedule! 

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About the Author

Simone Bartolo

Simone Bartolo is the founder of Simone’s Cleaning Pty Ltd, a Melbourne-based family business established in 2017. She is committed to delivering reliable, professional, and tailored cleaning services across a range of industries, with a strong focus on quality, integrity, and client care.