How to Clean a Bathroom: The Right Order, Step by Step

How to clean a bathroom in a Singapore HDB flat: an 8-step order from ceiling to floor trap, what to use on each surface, and 2 products never to mix.

Squeegee pushing water across a white-tiled HDB bathroom floor towards the floor trap

Key Takeaways

  • Clean a bathroom from high to low and from clean to dirty: ceiling corners and walls first, then the shower, mirror, sink, toilet, and the floor last.
  • Use 1 product at a time. Never mix bleach with vinegar, acidic toilet cleaner or ammonia — the combinations release toxic gas.
  • A weekly clean, plus a monthly deep clean of grout, the shower head and the floor trap, keeps most HDB bathrooms under control.
  • In Singapore the enemy is water left standing. Squeegee the floor towards the floor trap and open the window after every shower.
  • Recurring home cleaning from Urban Company Singapore starts from $39 for a weekly 2-hour session, and a one-off Bathroom Deep Cleaning starts from $65.

It’s Saturday morning in a 4-room resale flat in Toa Payoh. The common toilet has a grey tide mark on the floor, toothpaste on the mirror and a forgotten pail in the corner. The order you clean in matters more than what’s in the bottles.

How Do You Clean a Bathroom Step by Step?

Start at the top and finish at the floor trap, so every drip lands on a surface you haven’t cleaned yet. NEA’s own guidance for homes says to clean from high to low, wall to floor, and from clean to dirty areas, such as from the shower to the toilet bowl.

  1. Clear and ventilate. Take out mats, towels and toiletries, and open the window — NEA also recommends letting fresh air in.
  2. Dust high. Wipe ceiling corners, the light cover and window louvres with a dry microfibre cloth.
  3. Spray, then wait. Apply cleaner to the shower wall, sink and toilet bowl. A few minutes’ contact time does most of the scrubbing.
  4. Shower area and wall tiles. Wipe top to bottom, then rinse. For grout, here’s how to clean bathroom tiles and grout without damage.
  5. Mirror and glass. Wipe with a damp microfibre cloth and buff dry. For chalky marks on a shower screen, see how to clean water stains on glass and mirrors.
  6. Sink and tap. Sponge the basin, brush around the tap base and overflow hole, rinse, and dry the chrome.
  7. Toilet. With a separate cloth, so nothing travels to the basin, wipe the cistern, flush handle, seat and hinges, then scrub the bowl, under the rim, and flush.
  8. Floor last. Scrub, rinse, and squeegee every bit of water towards the floor trap.

What Should You Use on Each Part of the Bathroom?

Mild detergent and a microfibre cloth handle most surfaces; acids and abrasives are for specific jobs only.

SurfaceUseAvoid
Glazed wall and floor tilesMild detergent, warm water, soft brushAcidic toilet cleaner on grout
Grout linesBaking soda paste and a stiff brush, monthlyWire brushes, which gouge it
Chrome taps and shower headMild soap; diluted vinegar for scale, rinsed offScouring pads
Sink basinDish soap or mild bathroom cleanerAbrasive powder on enamel
Toilet bowlToilet cleaner under the rim, then the brushMixing it with bleach
Timber door frameDry or barely damp clothHosing water at the base

The timber door frame sits at the wet edge; years of splashing leave its base swollen.

Which Cleaning Products Should You Never Mix?

Never mix bleach with anything acidic or with ammonia. Bleach plus vinegar or an acidic toilet cleaner releases chlorine gas; bleach plus ammonia releases chloramine.

The risk is usually accidental: bleach on the floor, toilet cleaner in the bowl, both washing towards the same floor trap. Use 1 product per session, or rinse the first away completely before starting the second. Wear gloves and dilute exactly as the label says.

How Often Should You Clean the Bathroom in Singapore?

Squeegee daily, clean fully once a week, and deep clean once a month. Singapore’s mean annual relative humidity is around 82%, and it frequently reaches 100% during prolonged rain, so bathrooms here stay wet, and get dirty, faster than in drier countries.

  • Daily, 2 minutes: squeegee the floor towards the floor trap, wipe the sink, open the window.
  • Weekly: the 8 steps above.
  • Monthly: the deep-clean list below.

A dry floor is safer too. HealthHub notes that most falls at home are caused by hazards such as slippery floors, and recommends non-skid tape in the shower.

To fit the bathroom into the rest of the flat, use this daily, weekly and monthly house cleaning checklist.

How Do You Deep Clean a Bathroom?

Do the weekly clean, then add the jobs that build up slowly.

  • Grout: baking soda paste and a stiff brush.
  • Shower head and taps: a vinegar soak dissolves limescale. Here’s how to clean a shower head without removing it.
  • Floor trap: lift the cover, pull out hair and soap scum, rinse.
  • Behind the toilet base, window louvres and the fan grille.
  • Pails: empty, scrub and store upside down. NEA asks every household to do the Mozzie Wipeout at least once a week, because even a 20-cent coin of stagnant water is enough for mosquitoes to breed.

When Is It Not a Cleaning Problem?

When the bathroom is clean and something is still wrong:

Everything else in this article is a fair DIY job.

When Is It Worth Getting a Professional?

When the grout stays grey after 2 or 3 proper scrubs, before a move, or when nobody at home has the time. Urban Company’s Bathroom Deep Cleaning starts from $65 and uses high-temperature steam disinfection, with deep scrubbing using heavy-duty tools to remove stains and buildup. See Bathroom Deep Cleaning and book in Singapore.

If it’s the weekly clean that keeps slipping, a regular cleaner can take it off your list, with the same trusted cleaner each time. See recurring home cleaning in Singapore, or browse more home cleaning guides.

Frequently Asked Questions

What is the right order to clean a bathroom?

Work from high to low and from clean to dirty. Clear the room, dust the ceiling corners and window louvres, then do the walls and shower area, the mirror, the sink and tap, the toilet bowl and seat, and the floor last, squeegeeing water towards the floor trap. That way nothing dirty drips onto a finished surface.

How often should you clean the bathroom in Singapore?

Squeegee the floor and wipe the sink after each day’s showers, do a full clean once a week, and set aside time once a month for a deeper clean of grout, the shower head and the floor trap. A bathroom used by several people, or one without a window, usually needs the weekly clean more often.

How do you deep clean a bathroom?

Do the weekly clean first, then add the jobs that build up slowly: scrub the grout lines, descale the shower head and taps, lift and clean the floor trap cover, wipe behind and around the base of the toilet, and wash the window louvres, pails and bath mats. Most HDB bathrooms need this about once a month.

How do you clean a bathroom sink?

Clear the counter, wet the basin, then wipe it with a soft sponge and a little dish soap or mild bathroom cleaner. Use an old toothbrush around the tap base and the overflow hole, rinse, and dry the tap with a cloth so water marks don’t form. Avoid scouring pads, which scratch enamel and chrome.

Is it safe to clean the bathroom with bleach?

Yes, if it is diluted exactly as the label says, the window is open and it is the only product you use at that time. Never mix bleach with vinegar, acidic toilet cleaner or ammonia, as the combinations release toxic gas. Rinse it off completely before switching to another product, and wear gloves.

How do you clean a toilet properly?

Clean the toilet after the sink, not before, so the brush and cloth never go from bowl to basin. Put cleaner under the rim, let it sit while you wipe the cistern, handle, seat and hinges, then scrub the bowl and flush. Finish with the base and the floor around it, where splashes collect.

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