With skilled professionals, advanced equipment, and knowledge of the entire sewer system, we tackle grease buildup, subsidence, clogged plumbing, and persistent blockages in one go. Poor drainage often leads to leaks, mold, or even sewer flies.
Do you want to enjoy properly functioning pipes again quickly? View our experiences as Ontstoppen.nl via customer reviews about professional drain blockage solutions and find out why we score 5/5.
Have your drain blocked professionally: Get rid of your blocked drain quickly with Ontstoppen.nl
What does it mean to have a drain blockage resolved professionally?

Everyone will encounter it sooner or later: a blocked drain. This can disrupt your entire household. Having a drain blocked professionally means choosing an experienced team that uses the right technology, tools, and expertise to resolve any type of drain problem immediately and thoroughly. Our certified professionals Ontstoppen.nl work according to the strictest guidelines of the NEN 3215 standard and use, among other things, high-pressure unblocking machines, spring machines and camera inspection to gain insight into the precise cause of the blockage.
A professional approach guarantees lasting results compared to temporary, home-made solutions. We prevent damage to your pipes, optimally restore drainage, and always offer a warranty on our services. With our approach, you avoid recurring blockages, odor problems, and unnecessarily high repair costs.
- Professional inspection of the drainInspection with cameras and tracers to locate blockages and sewer problems with millimeter precision.
- Professional unblocking: Use of advanced milling machines, high-pressure cleaners or vacuum pumps, adapted to your specific drainage type and problem
- Preventive advice and aftercareTips to prevent future blockages and a no-obligation quote for any repair work
- Warranty and fixed price agreementUp to eight weeks guarantee on the unblocking work and always clarity about the costs in advance

Causes and types of drain blockage
Every type of drain in your home has its own risks of clogging. Kitchen waste, hair, grease, soap scum, and limescale can cause blockages in the drainage system over time. Tree roots, subsidence, and construction errors can also cause persistent blockages in the main sewer. We distinguish between several types of blockages:
- Mechanical blockages: Accumulation of objects, hair or kitchen waste in siphons, shower drains or washing machine connections
- Grease and soap residue: Especially in sink and kitchen drains, a thick layer of grease or soap quickly forms, which slowly clogs the pipes.
- External drainage and rainwater drainage: Accumulation of leaves, sand or roots can completely block drainpipes and gullies
- Structural defects or subsidence: Errors in the installation of the drainage system or sagging sewer pipes can lead to recurring blockages
These problems can occur in the kitchen, bathroom, toilet, basement, near the main sewer, or even in the street. Do you recognize a gurgling sound, water that won't drain, or an unpleasant odor? Then it's wise to opt for a professional solution immediately. Ontstoppen.nl.
The process of professional drain unblocking
If you choose to have your drain blockage resolved professionally, we will carry out the following: Ontstoppen.nl always draw up a structured step-by-step plan.
- problem analysisWe determine the exact location and cause of the blockage with a sewer camera or inspection pit.
- Cost overviewYou will receive a fixed price in advance so that you will not be faced with any surprises.
- Safe and thorough unblocking: We use mechanical springs, high pressure or vacuum technology that suits the severity and location of the problem
- Control and aftercareWe test whether the drain is working smoothly again and provide preventive advice.
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.

This approach prevents damage, works faster and provides a sustainable solution.
The benefits of Ontstoppen.nl to have a clogged drain resolved
As a drain cleaning service, we have years of experience unblocking both residential and commercial drains. Because we use the latest materials and always employ certified technicians, we can offer a wide range of extras:
- National networkWe will be at your doorstep within 24 hours throughout the Netherlands.
- Professional equipmentFrom Ridgid high-pressure units to Rioned spring machines and advanced inspection cameras
- No cure no pay guaranteeIf it doesn't work, you don't pay anything and if it's successful you get an 8-week guarantee.
- Transparent rates: No hidden costs but always one fixed rate, including VAT, call-out charges and labor costs
Do you frequently experience problems or is your sewer system not working properly? Then consider it in time. replace sewer system to prevent bigger problems.
When should you seek professional help for a blocked drain?
You can sometimes clear a clogged drain yourself with a plunger, baking soda, or a drain snake, but these solutions are often temporary. If the blockage keeps coming back, if there's flooding, or if you smell sewage in your home, contact a plumber immediately. Ontstoppen.nl committed to a sustainable solution, where we prevent problems such as pipe breaks, leaks and water damage through timely intervention.
We use techniques such as high-pressure cleaning, drain cleaning springs, vacuum trucks, and endoscopic cameras. This is combined with professional detection of, for example, grease separators, Haco manholes, and unblocking of city drains or rainwater drainage. Did you know that in addition to regular blockages, we also clear blockages within one day? unclog drain same day?
Immediate action for persistent drainage problems
Promptly calling in a professional drain cleaning service prevents escalation. Contact Ontstoppen.nl If you're experiencing flooding, smelling sewage, or simply want it resolved immediately, we're available 24/7 with everything you need for worry-free drainage and sewerage.
Want to know how much it will cost to have your blockage professionally resolved? Request a free, no-obligation quote within 24 hours via this page for your personal quote.
Do you have specific questions or would you like to discuss your drainage problem with an expert? Call or WhatsApp us directly at 085 2505 217 or email us at info@ontstoppen.nl. Ontstoppen.nl guaranteed to solve any drainage problem.
Do you also want to be sure that your drain is unclogged quickly and professionally in Amsterdam? Read all about the direct assistance of our local technicians at sewer unclogging Amsterdam.
Frequently asked questions
What are the main signs that you need to have a drain blockage resolved professionally?
If you notice the water isn't draining properly in your sink, shower, or toilet, or if you're experiencing gurgling sounds, unpleasant odors, or frequent blockages, it's wise to contact a specialist. These signs often indicate that dirt, grease, or hair has accumulated in the pipes. Unblocking your own pipes with chemicals rarely works long-term and can even damage the pipes.
A professional approach guarantees a thorough solution and prevents recurring blockages. With the right diagnostic and unblocking techniques, we can Ontstoppen.nl Quickly identify the cause and resolve the problem permanently, without unnecessary damage to your home. This ensures a permanently clean drain, including an eight-week warranty and fixed rates.
Why is it smarter to have your drain professionally unclogged instead of doing it yourself?
You can sometimes clear superficial blockages with household products, but they often don't address the underlying cause. Chemical drain cleaners can corrode your pipes, and if you use a drain snake yourself, you risk leaks or even ruptures. Moreover, without a camera inspection, you can never be certain the problem is truly gone.
Professional drain cleaning companies such as Ontstoppen.nl We use powerful equipment such as pressure washers, milling machines, and camera inspections to remove even the most stubborn blockages quickly, safely, and completely. Thanks to our all-inclusive flushing rate for the main sewer, you know exactly what to expect in advance, and the blockage is guaranteed to be cleared, regardless of how long it takes. Want to learn more about comprehensive solutions for stubborn blockages? Visit our persistent blockage service.
How quickly can a professional drain cleaning service fix my clogged drain?
Speed is crucial in the event of a blockage, especially if your plumbing is no longer usable or if there are overflowing drains. We at Ontstoppen.nl We offer fast service, often arriving on-site within 24 hours. With our no-win, no-fee guarantee and fixed prices, you'll never encounter any surprises, regardless of the location of the blockage.
Sometimes, even urgent action is required, for example, in the case of an acute blockage in the toilet or shower drain. Our professionals are ready to intervene immediately and resolve the problem efficiently and carefully. This way, you can quickly use your home again without stress or flooding. Need specialist help immediately? Also check out our drainage assistance for home.
How much does it cost to have a drain blockage professionally resolved?
At Ontstoppen.nl We believe in honesty and transparency, so we always work with a fixed rate for unblocking a single drain. You pay €169,50 including VAT, labor, and call-out fees, so no unexpected extra costs. Is it the main sewer or a more complex job? Then our all-inclusive flushing rate of €296,45 applies.
We always discuss the costs upfront should replacement be necessary. With our 8-week guarantee, you're guaranteed lasting results. This way, you'll have immediate clarity about the costs, can have professional unblocking carried out without any worries, and know exactly what to expect. Want to know how our service works without hidden costs? Visit unclogging drain including call-out charges.
What methods are used to professionally unclog a drain and what are their advantages?
To professionally unclog drains, we use advanced techniques like high-pressure cleaning and specialized drain cleaning springs. A camera inspection pinpoints the exact location and cause of the blockage. This allows us to work with great focus, tackling the problem at its source, rather than just addressing the underlying issue.
This approach ensures that even the most stubborn blockages are resolved without damaging your pipes. Our equipment is suitable for all types of drains, from sinks to main sewers. You also benefit from our fixed rates, no cure, no pay, and 8-week warranty, so you can have your drain professionally unclogged with peace of mind. Looking for a specialist for multiple drains? Read more at unclog multiple drains at the same time.






