Table of Contents
The short answer
A bathroom holds three different kinds of dirt, and each needs a different product. Limescale, the white crust hard water leaves on taps, glass and tiles, is a mineral, and only an acid dissolves it. Soap film and body oils are greasy, and a detergent-based bathroom cleaner lifts them. Mould is a growth that lives on damp. It is wiped away with a mould cleaner and kept away by drying the room. Most disappointing results come from the right effort with the wrong product.
Two rules sit above the rest. Acid descalers etch marble, limestone, travertine and terrazzo, and they wear cement grout when they are left on it, so know what your surfaces are before you open the bottle. And never mix cleaning products: bleach with an acid descaler, or bleach with ammonia, gives off toxic gas.
Scrubbing also has limits. Grout that is cracked or missing and silicone that has turned black inside need replacing, not cleaning. If you would rather have the work done, limescale removal and tile and grout scrubbing are part of IHR Dream Cleaning's deep cleaning service, which starts at 2 cleaners for 3 hours each (AED 180 with your own products).
Limescale, soap film, mould or dirty grout: telling them apart
Look and touch before you choose a product. The same grey bathroom can be any of these, and usually it is two at once.
| What you see | What it is | What removes it |
|---|---|---|
| A white or grey crust on taps, shower heads and the bottom of the glass, rough to the touch | Limescale: minerals left when hard water dries | An acid descaler, given time |
| A dull, slightly greasy film on glass, tiles and the bath | Soap film: soap and body oils bound with the minerals in the water | A bathroom cleaner with detergent, then a descaler for what remains |
| Black or dark green dots on silicone, grout and ceiling corners | Mould | A mould cleaner on the surface; new silicone if it is inside the joint |
| Pink or orange slime round the drain and on the shower floor | A bacterial film that grows where water stands | Bathroom cleaner and a brush |
| Grout gone grey or brown along the floor | Dirt and soap carried into porous grout | An alkaline cleaner and a stiff nylon brush |
| A brown or grey ring in the toilet bowl | Limescale that has trapped dirt | An acid toilet cleaner, left on the ring |
Why it builds so fast here
The water in Abu Dhabi is hard, and a bathroom is where it is sprayed onto warm surfaces and left to dry several times a day. Each drop that dries leaves its minerals behind, so scale forms exactly where water sits: the base of the tap, the bottom edge of the shower screen, the nozzles of the shower head, the grout lines of the floor. Many apartment bathrooms have no window and rely on an extractor, and in the humid months a room that stays damp for hours gives mould what it needs. Fresh scale wipes off within a week. Left for a month it hardens, and that is the point at which a routine clean stops being enough.
Which bathroom cleaning agents do what
Bathroom products fall into a handful of families. The family matters more than the name on the bottle, and the label tells you which one you are holding: look for the words descaler or limescale, bleach or chlorine, or stone-safe.
| Type | Removes | Does not remove | Keep it away from |
|---|---|---|---|
| Acid descaler, including acid toilet cleaners | Limescale and the mineral part of soap film | Grease, mould | Marble and other natural stone; cement grout for long; bleach |
| Detergent-based bathroom cleaner | Soap film, body oils, everyday dirt | Hardened limescale | Nothing common |
| Chlorine bleach and bleach-based mould cleaners | Surface mould and its staining | Limescale, soap film | Acids, ammonia, coloured grout, fabrics |
| Cream cleaner, a mild abrasive | Stuck film on ceramic basins and baths | Scale in corners and grout | Acrylic, coated glass, polished stone, plated taps |
| Neutral stone cleaner | Soap film and dirt on marble and other stone | Limescale | Nothing; it is the safe choice for stone |
Safety rules that are not optional
- Never mix products, and never use one straight after another on the same surface without rinsing with plenty of water. Bleach with an acid releases chlorine gas. Bleach with ammonia releases other toxic gases.
- Check which toilet cleaner you have, because some are acid and some are bleach, and the two must never meet. A bleach block in the cistern feeds bleach into the bowl with every flush, so do not use an acid cleaner in that toilet. If bleach was poured into the bowl earlier, flush several times first.
- Ventilate. Run the extractor, keep the door open, and in a windowless bathroom work in short spells.
- Wear rubber gloves, and keep products out of your eyes. Rinse a splash at once with water.
- Follow the label for how much to use and how long to leave it. Stronger and longer is not better. It is how surfaces are damaged.
- Test on a hidden corner when you are unsure of a surface.
- Keep products in their own bottles, closed, out of the reach of children.
What each surface tolerates, and what damages it
The descaler that makes porcelain shine leaves a permanent dull patch on marble within moments. Identify the surface first.
| Surface | Safe approach | What damages it |
|---|---|---|
| Glazed ceramic and porcelain tiles | Bathroom cleaner; a descaler for scale, rinsed well | Metal scourers and wire brushes, which scratch the glaze |
| Marble, limestone, travertine, terrazzo | Neutral stone cleaner and a soft cloth, dried after use | Any acid, including vinegar and lemon; cream cleaners and scouring pads |
| Cement grout | Alkaline or neutral cleaner and a nylon brush; acid only briefly, then rinsed | Acid left to soak, wire brushes, sharp tools |
| Glass shower screen | Bathroom cleaner, then a descaler, a non-scratch pad, a squeegee | Scourers and blades; abrasives on easy-clean coatings |
| Chrome taps and fittings | A mild descaler for a short time, rinsed and dried | Scourers; acid or bleach left sitting on the plating |
| Black, gold, brushed or matt tap finishes | Washing-up liquid in warm water and a soft cloth | Descalers and abrasives, unless the maker allows them |
| Acrylic bath or shower tray | Bathroom cleaner and a soft sponge | Cream cleaners, scourers and solvents |
| Mirror | Glass cleaner sprayed onto the cloth, not the mirror | Liquid running behind the edges, which blackens the backing |
Marble and other natural stone
Marble is the surface most easily damaged in a bathroom, because it looks tough and is not. It is made of the same mineral as limescale, so an acid that dissolves scale dissolves the polished face of the stone as well. The result is an etch: a dull, lighter mark in the shape of the splash, which no cleaner removes because it is not dirt. Only re-polishing the stone restores it.
That leaves a real difficulty: limescale on marble cannot be dissolved safely. On stone, prevent it by wiping surfaces dry after use, clean with a neutral stone cleaner, and treat hardened scale as a job for someone who works with stone. If your bathroom has marble, say so when you book any clean, and describe dull or etched areas so that the scope can be confirmed first. Machine polishing is not something to assume is included. The difference is explained in marble floors: cleaning, polishing or crystallising.
If you cannot tell whether a surface is stone or a porcelain tile printed to look like it, look for a pattern that repeats from tile to tile, which only printed porcelain has, or ask the landlord. When in doubt, treat it as stone.
A bathroom deep clean, in order
The order saves time and surfaces. Dry work comes before wet, products go on early so that they work while you do something else, and each product is rinsed away before the next is used.
- Clear the room: bottles, mats, towels, the bin, anything on the floor. Run the extractor and keep the door open.
- Do the dry work. Dust the extractor grille, the light fitting and the top of the door, then vacuum or sweep the floor. Hair and dust are far easier to remove dry than wet.
- Apply toilet cleaner under the rim and leave it.
- Apply the descaler where there is scale and the surface allows it: taps, shower head, glass, tiled walls. Leave it for the time on the label, not longer.
- While it works, clean what needs only bathroom cleaner: the basin cabinet, shelves, the outside of the toilet, the door and its handle.
- Rub the descaled areas with a non-scratch pad and rinse them thoroughly with clean water, from the top down.
- Scrub the grout with an alkaline cleaner and a stiff nylon brush, in short sections, and rinse.
- Brush and flush the toilet, then wipe the seat, the hinges and the base.
- Treat mould last and on its own, once the descaler has been rinsed off every surface and the toilet cleaner flushed away. Leave the mould cleaner for the label time, rinse, and air the room.
- Clean the mirror, then wash the floor, working out of the door.
- Dry and buff the taps and the glass with a clean microfibre cloth. Scale starts where water is left to dry.
Why waiting does more than scrubbing
A descaler works by reacting with the scale, and the reaction needs minutes, not force. Sprayed on and wiped straight off, it removes only the newest film. Left for the label time and kept wet, it softens the crust so that a light rub clears it. Heavy scale usually needs two or three applications. Scrubbing harder in place of waiting is what scratches glass and plating. The opposite mistake is leaving acid on far beyond the label time, which is how grout is roughened and chrome is marked.
Fixture by fixture
Shower glass
Glass carries two layers. The upper one is soap film, which a bathroom cleaner removes. Under it is scale, heaviest along the bottom edge and wherever the spray lands. Take the film off first, or the descaler spends itself on soap. Then apply the descaler, wait, rub with a non-scratch pad and rinse. Do not use a blade or a scourer. If the glass is still hazy when it is clean and dry, the minerals have etched the glass itself. That haze is permanent, and the only answer is prevention: a squeegee after the last shower of the day.
Taps and shower heads
Scale collects at the base of the tap, round the spout and in the nozzles. Wrap the base in a cloth or paper soaked in descaler so that it stays wet against the metal for the label time, then rinse and dry. A shower head that sprays sideways has blocked nozzles. Rubber nozzles can be rubbed clear with a thumb, and most hand showers unscrew by hand so that the head can be soaked. On coloured or matt finishes keep to soapy water unless the maker's care sheet says a descaler is safe.
Toilet
The ring at the waterline and the streaks under the rim are scale holding dirt. Push the water level down with the brush so that the cleaner reaches the ring undiluted, apply an acid toilet cleaner under the rim, leave it, then brush and flush. An old ring needs several rounds over a few days. Do not use metal tools, since a scratched glaze stains faster afterwards. Then wipe the seat hinges, the base and the floor behind the pan with bathroom cleaner. That is where a lingering smell usually comes from.
Tiles and grout
Glazed tiles are the easy part: bathroom cleaner for film, descaler for scale, then a rinse. Grout is harder, because cement grout is porous. It soaks up dirty water, soap and body oils, which is why floor grout darkens along the walking line and in the shower. An alkaline cleaner, a few minutes' wait and a stiff nylon brush bring most grout back several shades. Rinse well, because dirty water left in the joint dries straight back into it.
Use acid on grout only where there is scale on it, briefly, and rinse at once. Acid dissolves a little of the cement each time, and grout that is descaled often turns rough and holds dirt more easily. On floors a machine does this work faster and more evenly than a hand brush. Our floor and tile cleaning service covers grout lines, edges and corners. Tell us the floor type when you book, because marble and porcelain are not cleaned the same way.
Bath, shower tray and drain
Check what the bath or tray is made of before you choose a product. Acrylic scratches under cream cleaners and scourers, and the enamel of an older bath can be dulled by acid. Lift out the shower drain cover and remove the hair beneath it by hand, with gloves on. It is the commonest cause of slow drainage and of the smell that follows. A floor drain that smells when it is clean has a different cause, covered in bad smells from a bathroom floor drain.
Ceiling, extractor and door
Look up. The ceiling above the shower and the corners over the door are where mould starts in a room that stays damp. Wipe the extractor grille and check that the fan pulls: a square of tissue held near it should be drawn against the grille. A fan that hums without pulling needs repair, and until it works no amount of cleaning will keep mould out of that room.
Mould: what cleaning does, and what it cannot do
Mould needs moisture that stays. In a bathroom that means silicone joints, the grout in the shower, the ceiling above it, the ledge under bottles and the folds of a shower curtain. Surface mould on tiles, grout and paint wipes away with a mould cleaner. Apply it to a surface that has been rinsed clear of any descaler, leave it for the label time, rinse and air the room.
Silicone is different. Mould grows into the sealant, not just on it, and the black marks that remain after cleaning are inside the material. Repeated bleach lightens them for a few weeks at most. When the black returns quickly, or the bead is lifting or split, the answer is to cut the silicone out and apply new sealant to a clean and completely dry joint.
Keeping mould away is about drying, not products. Run the extractor during the shower and for a while after it, pull the water off the glass and walls with a squeegee, hang towels and mats outside the room, and leave the door open when the room is not in use.
When mould is a repair, not a cleaning job
In the cases below, cleaning treats the mark and leaves the cause. The fix is a working extractor, a repaired leak or new sealant. A leak behind tiles is plumbing work first, and the signs of a hidden water leak are worth checking. If mould covers a large area, or someone at home has asthma or another breathing condition, do not tackle it yourself. Have it dealt with and ask a doctor for advice.
- It returns within two or three weeks of cleaning, in the same place.
- It is on a ceiling or wall with a stain, bubbling paint or a damp feel, which points to water coming from above or behind.
- It is on the wall of the next room, behind the shower.
- The extractor does not work, or the room has no ventilation at all.
- The grout or silicone is cracked, so that water is getting behind the tiles.
What scrubbing cannot fix: regrouting and new silicone
Cleaning removes what is on a surface. It cannot put back material that has gone, or take out a stain that runs through the material.
| What you see | Clean or replace | Why |
|---|---|---|
| Grout dark on the surface, sound and level | Clean | The dirt is in the top of the joint and lifts with an alkaline cleaner |
| Grout still dark after proper cleaning | Regrout, or accept it | The stain runs through the joint |
| Grout cracked, crumbling or missing | Regrout | Water is getting behind the tiles |
| Silicone with spots that wipe off | Clean | The mould is on the surface |
| Silicone black inside, or black again within weeks | Replace | The mould is in the sealant |
| Silicone lifting, split or gapped | Replace | The joint no longer keeps water out |
How the repair fits around the clean
Our grout and silicone repair service covers re-siliconing, replacing mould-stained sealant and regrouting tiles. It is quoted from the area and its condition, after photos or a free inspection. The joints have to be dry for the work, and the shower stays out of use until the new sealant has cured. The technician tells you how many hours to keep water off it. Plan the repair and the deep clean together and say so when you book, so that they are done in the right order. The decision, joint by joint, is in when grout and bathroom silicone need replacing, not scrubbing.
Having it done: what to expect, hours and cost
On our published checklist a deep clean adds three things to the regular bathroom routine: tiles and grout scrubbed, limescale removed and high-touch points sanitised. The regular part is the toilet, basin and shower, the mirrors and fittings, and the floor. The room-by-room scope of the whole visit is in the complete guide to deep cleaning.
Cleaning is priced by the length of the visit, per cleaner, VAT included. The smallest deep clean is 2 cleaners for 3 hours each: AED 180 with your own products and AED 210 with ours, since our materials add AED 5 per cleaner-hour. Our villa page notes that a villa with three or more bathrooms needs proportionally more time for limescale and grout alone, so count the bathrooms when you book. If the rest of the home is in good order and only the bathrooms have fallen behind, say so. The visit is priced by time, not by room, and the priorities are agreed with the team leader before work starts. Every visit length is on the price list.
What to tell us when you book
- How many bathrooms there are, and which is the worst.
- What the surfaces are: marble or other stone, porcelain, a coated shower screen, coloured tap finishes.
- Whether any grout or silicone is cracked or black, with a photo, so that the repair can be quoted alongside.
- Whether you are providing the products. Without materials the team uses yours, so have a descaler that suits your surfaces, a bathroom cleaner, cloths and a brush ready.
- Any product you want used, or avoided, on a particular surface.
What to check before the team leaves
The team leader goes through the agreed checklist with you at the end. Look in good light at the base of the taps, the bottom edge of the shower glass, the grout of the shower floor, the ring in the toilet and the floor behind the door. Results on old scale and stained grout are improvements, not always a return to new: badly stained grout lightens but may not come back to white, and etched glass stays hazy. If a point on the agreed list was missed, report it within 24 hours and it is re-cleaned without charge. What each materials option means on the day is in cleaning with or without materials.
Keeping scale and mould from coming back
Everything in this guide is slower and harsher than the minute a day that prevents it. How often each bathroom job needs doing is set out in how often a home in Abu Dhabi should be cleaned.
- Squeegee the glass and the tiled walls after the last shower of the day, before the water can dry.
- Wipe the taps dry. A dry tap cannot scale.
- Run the extractor during the shower and for a while afterwards, and leave the door open.
- Clean weekly with bathroom cleaner, and use the descaler only where scale appears.
- Keep bottles off the shower floor and ledges, where water pools under them.
- Wash the bath mat and the shower curtain regularly, and hang them up to dry.
Common questions
Do vinegar and lemon juice remove limescale?
They are weak acids, so on light, fresh scale on glass, ceramic and chrome they work, slowly. They do little to a hardened crust, and they damage the same surfaces every acid does: marble, other natural stone and, with long contact, cement grout. They are not gentler on stone because they come from the kitchen. Never use them with bleach.
Can I just use bleach on everything?
Bleach whitens and disinfects. It does not dissolve limescale or lift soap film, so a bleached bathroom can be white and still rough to the touch, and the scale goes on holding dirt. Use it for mould, and for the toilet when there is no acid cleaner in the bowl, and use the right product for the rest.
Will my grout come back to white?
Often several shades lighter, sometimes fully. It depends on whether the darkening is dirt sitting in the top of the joint or a stain that has travelled through it, and on whether the grout was white to begin with. Grout that stays dark after an alkaline cleaner and a nylon brush have been used properly will not respond to more scrubbing. The choice then is to regrout or to live with it.
How often does a bathroom need a deep clean?
Our published guidance for a deep clean of the whole home is once or twice a year, and the bathrooms usually set the date. The sign is scale you can feel on the taps or see on the glass a few days after a routine clean. For floors, our published guidance is that machine-cleaning tiles and grout every six to twelve months is usual, with greying grout lines the clearest sign that it is due.
How long does bathroom silicone last?
Our published guidance is that bathroom silicone usually needs redoing every one to two years in a humid home. A bathroom that is aired and dried after use sits at the long end of that. Black lines that no longer scrub off are the sign that it is due.
Is it safe to deep clean a bathroom with children and pets at home?
Yes, with ordinary care. Keep children and pets out of the bathroom, and away from its open door, while products are in use and until the surfaces are rinsed and dry. Keep the extractor running, let the room air before it is used, and store the bottles out of reach. If anyone at home reacts to strong smells, tell the team before the visit.
Booking a bathroom deep clean
Start by finding out what your surfaces are and reading the labels of the products already under the basin. That alone prevents most of the damage described in this guide.
If you want it done for you, the deep cleaning page explains what the visit covers and how the hours are confirmed. Tell us the number of bathrooms and what the surfaces are, choose the day, and the price is shown before you confirm. Payment is by card online once we confirm your booking, and you can book a visit in a couple of minutes.
