We always thoroughly analyze the cause of the problem first. Then we'll fix your clogged toilet immediately without damaging any pipes or plumbing fixtures. So you don't have to worry about extra costs or mess.
Choose you Ontstoppen.nlThen we'll go for a sustainable solution with guarantees. Good to know: We only receive five-star reviews on Google for our professional toilet blockage service..
What is professional toilet blockage removal?

Professionally resolving a toilet blockage means that a team of experienced sewer specialists like us at Ontstoppen.nlUsing high-quality equipment and proven techniques, we thoroughly and permanently resolve blockages in toilet drains. A blocked toilet is often caused by a buildup of dirt, grease, wet wipes, sanitary products, or limescale that builds up in the pipes. Our professional approach makes all the difference compared to common household products like plungers, chemical drain cleaners, or baking soda. Thanks to our knowledge of sewer construction and modern tools like mechanical spring machines and pressure washers, we can not only remove the current blockage but also address the source and prevent future problems.
How does professional toilet unclogging work? Ontstoppen.nl?
As soon as you contact us, we'll schedule an appointment immediately and often be on-site within 24 hours. Our technicians always start with a visual inspection of the toilet, the drain, and the crawl space or downpipe if necessary. We then determine the appropriate unblocking method based on the type of blockage, the location, and the pipe material. Common methods include mechanical unblocking with a drain snake or spiral machine, high-pressure water sewer cleaning, and, if required, camera protection via a sewer camera. We guarantee a careful and damage-free approach using certified equipment in accordance with the protocols of the RIONED Foundation and international NEN standards for sewer maintenance.
- Inspection and analysis: We accurately assess where and what caused the blockage, using sewer cameras and smoke detection for precision.
- Mechanical unblocking: Using a spiral machine or spring, we effortlessly remove accumulations of paper, lime or other solids from the pipe.
- High-pressure cleaning: By spraying water through the pipes at very high pressure, we completely flush away build-up and deposits up to the main sewer line.
- Prevention and advice: After resolving the blockage, we provide personal advice on maintenance and future-proof solutions.

Common causes and symptoms of toilet blockage
A professional drain cleaning service distinguishes itself by not only addressing the symptoms but always identifying the root cause. This ensures lasting results. There are several recognizable signs and causes that lead to a clogged toilet.
- Rinse slowly: The water drains more slowly after flushing and remains suspended for a long time. This often indicates a developing backlog in the drain pipe.
- Bubbling or bubbling sound: Air bubbles and gurgling after flushing are signs of air trapped in the sewer system due to a blockage.
- Odor nuisance: A pungent sewer smell, even if the pipe has not been flushed recently, indicates that dirt is building up and bacteria are developing in the pipe.
- Recurring blockages: If your toilet gets clogged regularly, there may be problems in the deeper downpipe or the municipal sewer.
Wet wipes, cleaning products, sanitary towels, or large amounts of toilet paper are often the culprits. Less common but common causes include limescale, subsidence in the pipe, or tree root growth near the outdoor sewer system.
Process of professionally clearing a toilet blockage
The approach of Ontstoppen.nl is always structured, transparent, and adheres to established protocols. To professionally resolve toilet blockages, we follow these important steps:
- Telephone contact and work recording: We'll listen to your complaint and schedule a quick inspection. You'll know immediately where you stand.
- Visual inspection and examination: We inspect the toilet, siphon, connections and, if necessary, the crawl space hatch or the outside sewer using advanced camera inspection.
- Unblocking with the correct method: Depending on the type of blockage, we choose a spiral machine, high-pressure plunger, or manual removal, of course without leaving any damage or dirty residue.
- Re-check and testing: We test the entire drain for proper flow and use a camera to check whether all residues have been removed.
- Cleanup and aftercare: We leave everything spotlessly clean and provide free advice on maintenance or structural measures, such as periodic cleaning or repair of pipework.
How we work
How we work
Report a blockage (without obligation)
Tell us where the blockage is (drain, plumbing, toilet, or sewer). We'll immediately analyze the situation by phone, WhatsApp, or form.
Free quote
You'll receive a clear, all-inclusive price for unblocking—including call-out fees, labor, and a no-win, no-fee policy. No surprises.
National coverage
Our certified sewer specialist often arrives the same day. We unclog drains without any demolition work, using professional equipment.
Unblocking & warranty
We'll fix the blockage, inspect all pipework, and offer an 8-week warranty. Safe, durable, and professional.

Different types of toilet blockages and their solutions
Not every toilet blockage is the same, and therefore each situation requires a customized approach. We broadly distinguish three types of blockages when professionally resolving them:
- Superficial blockage: This involves flushed products like paper, tissues, or plastic in the siphon or direct drain. This can be quickly resolved with our spiral machines.
- Deeper blockage: If the blockage is located deeper in the pipework or downpipe, we tackle this with flexible springs or high-pressure hoses.
- Main sewer clogged: You'll notice this when water backs up into multiple toilets or drains. We detect this with camera inspections and resolve it with powerful cleaning equipment or complete cleaning, including the municipal sewer system.
For persistent sewer problems, we collaborate with organizations like the RIONED Foundation to promote knowledge and innovation in the sector. Want to learn all about unblocking your sewer in Amsterdam? Then read more on our page about unclogging a sewer in Amsterdam for in-depth information.
Why Ontstoppen.nl Need a professional solution for a toilet blockage?
Our approach is characterized by fast service, transparent pricing, and a solution within 24 hours. You benefit from an 8-week written guarantee on every unblocking and a fixed rate of €169,50 for single blockages. For complex main sewer problems, we charge an all-inclusive flushing rate, provided this is agreed upon in advance. All technicians are certified, have advanced equipment, and work according to NEN standards for sewer technology. We operate on a no-cure-no-pay basis, are affiliated with Techniek Nederland, and stay up-to-date on the latest innovations in the sewer industry. You don't have to worry about additional costs: with us, labor, call-out charges, and equipment use are always included. If a pipe needs replacing, we always provide transparent pricing and services upfront.
Need immediate help with a blocked toilet?
At Ontstoppen.nl We are available day and night if you have a blocked toilet. Call or WhatsApp us at 085 2505 217 or send an email to info@ontstoppen.nlWe are here for you with a personal approach, immediate answers to your questions, and a solution that goes beyond just unblocking. Ask quickly and easily a quote for the professional removal of toilet blockages and we ensure permanent results at a fixed rate, including a guarantee.
Frequently asked questions
How do you recognize an incipient toilet blockage and when should you seek professional help?
A developing toilet blockage is often noticeable by gurgling sounds, slow draining, or a rising water level after flushing. You may also experience an unpleasant sewage smell in the toilet. If you've tried a plunger or hot water and the problem persists, it's time to seek professional help.
At Ontstoppen.nl We professionally resolve toilet blockages using powerful equipment and skilled professionals. This prevents damage to the ceramic or disruptions further down the drain. Want to know more about immediate assistance with a blocked toilet? Discover our services for quick toilet unclogging action.
How much does it cost to have a toilet clogged professionally?
Would you like to know exactly what you can expect in advance? Ontstoppen.nl We use fixed all-inclusive rates. We'll clear a single toilet blockage for €169,50, including VAT, call-out fees, and use of professional drain cleaning equipment. Is your main drain blocked? Then our all-inclusive flushing rate of €296,45 applies, a one-time fee in the Netherlands, regardless of the duration of the job. So you never pay more than agreed upon and you also receive an 8-week warranty on the solution provided.
Unsure whether your blockage falls under a single or main sewer category? Our technicians will assess this transparently on-site, and you always decide in advance. Feel free to view our selection for unclogging toilet at a fixed price.
How does it take Ontstoppen.nl Want to professionally solve a toilet blockage step by step?
We always start with a problem analysis. Using professional equipment, we pinpoint the exact location of the blockage. We then use powerful spring-loaded machines or pressure washers to remove the blockage safely and effectively. If there are recurring problems, we can conduct further investigation using a specialized sewer camera to immediately detect any damage or cracks.
After clearing the blockage, we'll fully test the system to ensure everything is working properly again. Our technicians will leave everything clean and will inform you about any maintenance or future risks. See how we do it. professional toilet unclogging
What are the advantages of a professional solution over trying to unclog a drain yourself?
Trying to unclog your drain yourself sometimes provides temporary relief, but often doesn't address the root cause completely. Using professional equipment, we also remove stubborn blockages like grease, paper buildup, or limescale that can't be removed with common household products. This prevents damage to your drain and saves you frustration.
In addition, you benefit from Ontstoppen.nl No cure, no pay, fixed rates, and a guaranteed unblocking service. Our experienced professionals will resolve the problem safely and quickly, usually the same day. Want to learn more about our professional approach to clogged toilets? See our overview. specialized toilet unblocking services.
What guarantee does it offer? Ontstoppen.nl to have a toilet blockage removed professionally?
After every professional unblocking job on your toilet, you will receive Ontstoppen.nl We offer a standard 8-week warranty on the solution. If a blockage occurs again in the same location within that period, we will resolve it free of charge. This warranty applies to both standard toilet blockages and blockages in the main sewer, as long as the problem is not caused by improper use.
We believe in transparency, fair pricing, and delivering lasting results. With our years of experience, highly trained technicians, and proven methods, you're guaranteed a toilet that flushes smoothly for years to come. Let us professionally unclog your toilet; choose certainty and quality.





