EssayMay 14, 2026 · 6 min read

Bathroom maintenance: Dutch words for 'ontkalker' and plumbing

Keep your bathroom clean and functional. Learn the Dutch terms for cleaning limescale, fixing leaks, and identifying bathroom fixtures.

ByInburgeringPrep editors
PublishedMay 14, 2026
Reading time6 min
A person in a modern Dutch tiled bathroom using a spray bottle to clean white limescale from a chrome faucet.

You'll be able to manage your apartment repairs and discuss maintenance with your landlord once you master these specific terms. Understanding the labels on cleaning products ensures you keep your home in good condition and protects your deposit. Learning the correct badkamer schoonmaken woorden (bathroom cleaning words) helps you find exactly what you need at stores like Action, Kruidvat, or Hema.

Fighting limescale and mold — Learn why ontkalker and schimmelreiniger are essential in the Netherlands.

Dutch tap water tastes great. It's safe to drink. However, this water contains high mineral concentrations. These minerals leave a white, chalky residue on every surface they touch in your home. This residue is kalk (limescale). If you ignore these spots, they'll harden into a thick crust that ruins chrome faucets and clogs your showerhead. You must use an ontkalker (descaler) regularly to dissolve these deposits before they cause permanent damage. Most people buy a spray bottle and let the liquid intrekken (soak) for 10 minutes before rinsing.

Another common issue in Dutch bathrooms is schimmel (mold). Many Dutch homes have limited ventilation, especially in older buildings in the stadscentrum (city center). When steam stays in the room, black spots begin to grow on the ceiling and in the corners of the shower. You'll need a specific schimmelreiniger (mold cleaner) to kill these spores. These products contain high concentrations of bleek (bleach), so you must wear gloves and keep the door open. If you don't treat mold immediately, it'll spread to the voegen (grout) between your tiles. This makes it much harder to remove later and can lead to health issues.

Cleaning the shower and tiles

Your shower consists of several parts that require different cleaning approaches. The douchecabine (shower cabin) often has glass walls that show water spots quickly. After every shower, you should use a trekker (squeegee) to remove excess water from the glass and tegels (tiles). This simple habit reduces the amount of kalkaanslag (limescale buildup) you have to scrub away later. For the tiles themselves, a general allesreiniger (all-purpose cleaner) works for weekly maintenance. If the grout becomes yellow or brown, a small brush and a mixture of schoonmaakazijn (cleaning vinegar) can restore the original color. Vinegar is a cheap and effective tool for most bathroom tasks in the Netherlands.

Handling hard water (kalk)

Hardness in Dutch water is measured in Duitse Hardheid (German Hardness) or dH. In cities like Rotterdam or Utrecht, the dH levels are high enough to require aggressive descaling once a week. You'll notice kalkaanslag first on the tip of the kraan (tap) where water drips. If the flow of water becomes uneven, the perlator (aerator) inside the tap is blocked. You can unscrew this small metal piece and soak it in a cup of azijn (vinegar) overnight. By morning, the acid will have dissolved the minerals. Your water flow will be straight again. Some residents choose to install a waterontharder (water softener) to treat the water before it enters the pipes. This is an expensive addition for a rental property, so most people stick to bottled sprays.

Plumbing fixtures and parts — Identify the kraan, de afvoer, de douchekop, and de wasbak.

When you need to report a repair to your huisbaas (landlord) or a woningbouwvereniging (housing association), you must name the parts correctly. The most basic fixture is the wasbak (sink), which is made of ceramic. Above the sink, you have the kraan (tap). Most modern Dutch bathrooms use a mengkraan (mixer tap), which allows you to control the temperature with a single handle. If your water temperature fluctuates wildly, the thermostaatkraan (thermostatic tap) in the shower might be broken. This specific part is expensive. Describing it accurately to the reparateur (repairman) saves time and prevents multiple visits.

Beneath the sink, you'll find the afvoer (drain). This connects to a curved pipe known as the sifon (u-bend or trap). The sifon holds a small amount of water to prevent rioollucht (sewer smell) from entering your bathroom. If you drop a ring or a small object down the drain, you can retrieve it by placing a bucket underneath and unscrewing the bottom of the sifon. You should also check the douchekop (showerhead) for clogs. If the little rubber holes are blocked by white crust, you can rub them with your thumb or soak the whole head in a bag of descaler. Furthermore, pay attention to the doucheslang (shower hose) for cracks that cause spraying.

Other important parts include the douchebak (shower tray). If you see water pooling around your feet, the putje (drain hole/grate) is full of hair. In the toilet, the toiletpot (toilet bowl) is connected to a stortbak (cistern). Inside that tank, a vlotter (float valve) regulates the water level. If you hear water constantly running in your toilet, the vlotter is stuck or broken. This waste of water'll increase your bill from the waterbedrijf (water company), so fix it quickly. You'll find these terms useful when browsing the plumbing aisle at Gamma or Praxis.

Common plumbing issues — Vocabulary for verstopping, lekkage, and de loodgieter.

A verstopping (clog) is the most frequent problem for residents. You'll notice the water in your wasbak stays still or drains very slowly. Your first tool should be a plopper (plunger). If that fails, you can buy vloeibare ontstopper (liquid drain opener) at the supermarket. Be careful with these chemicals. They can damage older lead pipes. If the clog is deep in the riool (sewage line), you'll need professional help. Always check your huurcontract (rental contract) to see if you or the landlord is responsible for small repairs. Minor clogs caused by your usage are your financial responsibility.

A more serious issue is a lekkage (leak). You'll see a vochtplek (damp spot) on the wall or a puddle on the floor. If the leak comes from a pipe, you should immediately close the hoofdkraan (main water valve). This is located in the meterkast (meter cupboard) near the front door or in a small hatch near the entrance. Once the water is off, call a loodgieter (plumber). When calling, state clearly: "Er is een lekkage in de badkamer!" If you live in an apartment building, you'll also need to contact the VvE (Owners' Association). Your leak could cause waterschade (water damage) to the neighbors below you.

Professional plumbers in the Netherlands are expensive. You'll pay an uurtarief (hourly rate) between 60 and 100 Euros, plus a voorrijkosten (call-out fee). To avoid these costs, perform regular onderhoud (maintenance). This includes cleaning the rooster (grate) of your shower drain every week and checking the kitranden (silicone sealant) around the tub. If the silicone is peeling or has holes, water'll seep behind the tiles and cause rot. Replacing a kitrand is a simple DIY task. You remove the old rubber with a knife and apply new sanitairkit (bathroom sealant). Use a voegenkrabber (grout scraper) if the edges are particularly stubborn.

Always remember that kalk is your primary enemy in a Dutch bathroom. If you keep the surfaces dry and use ontkalker regularly, your fixtures'll last for decades. When a problem exceeds your skills, use specific terms like sifon, afvoer, and lekkage to ensure the loodgieter brings the right tools. DUO often includes household maintenance scenarios in the Kennis van de Nederlandse Maatschappij (KNM) section of the exam, so these words help your studies too. Proper maintenance keeps your home healthy and prevents unexpected bills from your landlord or the Belastingdienst if you're claiming specific home-office deductions.

Regularly removing limescale and hair from the drain is the most effective way to prevent expensive plumbing visits.

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InburgeringPrep editors

Writes about the inburgeringsexamen for people going through it right now. Editorial focus on the things textbooks skip — the real DUO format, the rules nobody tells you, the rookie traps.

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