Unblocking sewers and outside manholes
Clogged sewer or overflowing manhole? Get in touch!
You notice that your toilets regularly clog upthat your sinks drain badlyor that you hear gurgling noises every time you flush? It's highly likely that the problem isn't with your indoor pipes, but with your outside view or your mains drainage.
At The unblocking Expertswe can respond quickly to unblocking drains and outside manholeswith professional, effective and sustainable solutions.
3 all-inclusive packages!
Unclogging
Express
Unclogging
High Pressure
+ Camera passage
Cleaning
Reinforced
What causes a blocked sewer?
Even if sewer pipes are large in diameter, they are not immune to blockages. Here are the main causes of a blocked manhole cover :
-📦 Excessive use of toilet paperEspecially when several toilets are flushed at the same time.
- ❌ Wipes, sanitary towels or objects flushed down the toilet.
-🧼 Build-up of detergent, limescale and scalewhich harden and reduce the diameter of the pipes.
-📐 Slope problem If the slope between your house and the manhole is too shallow, wastewater will stagnate.
-🔁 Repeated 90° bendswhich slow down drainage and encourage blockages.
-🕳️ Land subsidence causing a break in the hose.
-🌱 Tree roots which penetrate the pipes and block the passage.
Why don't chemicals work?
Products such as Destop, bicarbonate of soda or "grandmother's remedies" are the best way to ensure the best results. totally ineffective when faced with a blockage in a sewer. Why is this?
👉 The volume of water in sewers instantly dilutes these products, rendering them useless.
The solution: professional high-pressure unblocking
The most effective and ecological method is high-pressure hydrocleaning. This technique breaks up blockages, cleans the pipe walls and restores optimum flow, without damaging your pipes.
🔎 In the event of suspected breakage, subsidence or roots, The unblocking Experts offer you a complementary camera passage (fixed price: €250) to accurately inspect the condition of your pipes.
This inspection makes it possible to check for roots, limescale or solid depositswhich are often responsible for recurring traffic jams. Thanks to this analysis, we can identify the real cause of the problem and propose a lasting and definitive solution.
Clogged sewer manhole or backflow: who should pay?
It all depends on the location of the plug :
-🌳 Outside your property (in the street or on the public highway): the intervention is generally the responsibility of the commune.
-🏡 In your garden or private grounds the cost of unblocking is borne by owner or tenantdepending on the case.
We have written a full article to help you find out how to determine whether the sewer problem is private or public
Why choose Les Experts du Débouchage?
✅ Fast and efficient response throughout the Hérault department
✅ Experienced technicianstrained in modern unblocking techniques
✅ Professional equipment hydrocleaning, video inspection, manhole detection
✅ Free quote and personalised advice
✅ Excellent customer reviews on Google and Trustpilot
Forget your clogging problems...
We can be there in less than an hour!
Frequently Asked Questions
How do I know if my sewer or manhole is blocked?
Sewage rising up in the yard, strong odours near the manhole, very slow drainage or a sudden overflow: all these signs indicate that there is a blockage in the external network.
My outside view is overflowing. Can you intervene quickly?
Yes, we do the same day in most cases. An overflowing manhole can be a matter of urgency, especially if there is a risk of flooding or backflow into the house.
What is the most effective method for unblocking an external drain?
We generally use high-pressure hydrocleaningThis method thoroughly cleans pipes of mud, roots, scale and grease. This method is fast, clean and highly effective.
Clogged sewer: should you call an unblocker or a plumber?
A professional unblocker is the most qualified for this type of job. He has inspection cameras, high-pressure jets and tools adapted to large pipes.
How much does it cost to unblock a sewer or manhole?
The price depends on the complexity of the blockage, the length of the pipe and access to the manhole. We always offer a clear estimate before work is carried out. The €250 package is sufficient in 95% of cases
What happens if the blockage recurs frequently?
In this case, a video inspection is recommended. It identifies any structural defects, breakages or slope problems. We'll give you a detailed report with recommendations.
Blocked eyes: who should pay, the tenant or the landlord?
It all depends on the cause of the blockage. If it's due to misuse (grease, wipes, etc.), it's often up to the tenant to sort it out. If the drain is broken or collapsed, it's up to the landlord to take charge.
Can my insurance cover unblocking a sewer?
Some home insurance policies cover unblocking if the blockage causes water damage or is the result of an external event (flooding, falling trees, etc.). Remember to check the clauses of your contract.
Can tree roots block my drains?
Yes, this is a common problem. Roots seek out moisture and can penetrate pipes through joints. They end up completely blocking them. Hydrocleaning and root cutting are then necessary.
Can I unblock a drain myself?
Blockages in sewers are often too deep to be reached with a simple ferret or chemical product. What's more, opening a manhole can be dangerous without equipment. It's best to call in a professional.
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