Sewer renovation - with years of experience from professionals
Minimal construction work - excellent results: The Kanalhelden renovation methods guarantee fast, clean and cost-effective repair of your wastewater pipes.
Known from
Trenchless renovation in 1-3 days - your construction site schedule stays on track.
Cost advantage:
Up to 75% cheaper than conventional civil engineering thanks to state-of-the-art liner technology.
Immediate use:
24/7 emergency service for pipe damage during the construction phase - we're on our way.
Sewer renovation rethought: fast, clean and without a construction site.
We are professionals in trenchless sewer rehabilitation. Just imagine: Instead of ripping out the old pipe, it is given a new, stable inner wall. Access is via existing manholes or inspection openings - without an excavator.
In addition to trenchless methods, we have other efficient methods for sewer rehabilitation in stock. Which rehabilitation method is used depends on the specific case of damage.
Most of our refurbishment projects are completed in 1 to 3 working days.
Still tight? If not: The canal heroes are on their way!
Sewer rehabilitation where you need us
The channel heroes are in action all over German-speaking Switzerland – with fixed locations, local teams, and short response times. We are particularly strongly anchored at three locations and are familiar with the local construction specificities.
In the Zurich-East region, we manage properties from single-family homes to large developments from Winterthur – more at Sewer rehabilitation Winterthur. From Pratteln, we cover Basel-Stadt, Basel-Landschaft, and the Fricktal – details at Sewer rehabilitation Basel. Our headquarters in Emmen serves all of Central Switzerland, including Zug, Schwyz, Obwalden, and Nidwalden – all info at Sewer rehabilitation Lucerne.
Who we carry out sewer renovations for
Why things are going well for you with the Kanalhelden:
Sewer renovation - project check in 45 seconds
Answer the questions briefly. You will receive an initial assessment of the urgency and a plausible renovation method (trenchless, if possible).
Acute (congestion / rupture) = always clarify quickly.
Collapsed = often stabilize first, then renovate.
For rapid project clarification: Canal heroes 24/7 041 562 31 31
Proposal & next step
Recommended next steps
How we seal the pipe again: process, technology, services
We have various methods available for sewer rehabilitation. We always suggest the method that makes the most sense for your specific case - in terms of cost, safety and service life.
The most common reasons for sewer renovation
Renovation request from the municipality for conversion
Damage to existing sewers during new builds or renovations
Subsequent remediation in the event of a failed leak test
After water damage due to leaking sewage pipes or burst pipes
Refurbishment if a new installation is not possible due to accessibility
Trenchless sewer rehabilitation with the liner method: Inliner, short liner / partliner, spray liner
The liner processes include inliners, short liners / part liners, spray liners and others. These methods are suitable for pipes with a diameter of 50 mm to 400 mm. Other methods are used for smaller pipe diameters and pipes that have already collapsed.
Good reasons for sewer rehabilitation with the liner method
- Cost-saving renovation: 3 to 4 times cheaper than conventional excavation methods
- Minimum renovation time: 3 to 5 times faster than excavation methods
- Long service life: Extension of the service life by 50 to 70 years
- Ensuring the value retention and functionality of the wastewater pipes
- Guaranteed tightness in accordance with applicable laws
- No pointing of walls and floors, no disruption from construction activities
The inliner renovation process - step by step
To give you an idea of how the process works, here are the most important steps:
Preparation & cleaning
Damage analysis by camera
Inserting the liner
Curing the liner
Final inspection
The inliner renovation
For longer cracks or more extensive damage, we use the tried and tested inliner method. A polyester hose impregnated with special resin is inserted into the pipe and cured. As access is via inspection chambers, inliner renovation does not require any excavation or complex construction work - saving time and money.
High-pressure cleaning is carried out as preparation. Depending on the damage, it may be necessary to drill out or mill the pipes to restore the original pipe cross-section.
The most common reasons for an inliner renovation are damage to the entire pipe, pipes made of materials that are no longer permitted, such as vitrified clay pipes, as well as ingrowth through the sockets of the wastewater pipe and penetrating groundwater.
Comparison: Inliner rehabilitation vs. classic excavation
Trenchless vs. conventional sewer rehabilitation: a direct comparison
Trenchless vs. classic
Criterion
Inliner renovation (trenchless)
Classic excavation
Construction measures
Construction time
Costs
Service life
Impairment
Space requirement / construction site
Reworking
Possible applications
No digging - access via shafts or inspection openings
Minimal, often completed within one day
Significantly lower due to less personnel, material & machines
50+ years
Hardly any disruption for residents, passers-by or businesses
Very low, compact devices
Practically none, line can be used again immediately
Also for bends, difficult to access pipes or buildings
Excavation of roads, gardens, soil necessary
Several days to weeks possible
Higher due to earthworks, machinery, restoration of surfaces
similar (new pipe), but higher cost
Noise, dust, dirt and traffic obstructions
Large construction site, lots of storage and machine space
Restoration of road surface, garden or soil necessary
Only possible if the pipe is made freely accessible
Move to the right
Criterion
Construction measures
Construction time
Costs
Service life
Impairment
Space requirement / construction site
Reworking
Possible applications
Inliner renovation (trenchless)
No digging - access via manholes or inspection openings
Minimal, often completed within one day
Significantly lower due to less personnel, material & machines
50+ years
Hardly any disruption for residents, passers-by or businesses
Very low, compact devices
Practically none, line can be used again immediately
Also for bends, difficult to access pipes or buildings
Classic excavation
Excavation of roads, gardens, soil necessary
Several days to weeks possible
Higher due to earthworks, machinery, restoration of surfaces
similar (new pipe), but higher cost
Noise, dust, dirt and traffic obstructions
Large construction site, lots of storage and machine space
Restoration of road surface, garden or soil necessary
Only possible if the pipe is made freely accessible
The short liner method / partliner method is suitable for
- Selective repairs in the sewer system
- Leaky sockets / pipe connections
- Rooting
- Damage / holes in the pipe
Short liner refurbishment / Partliner refurbishment
An inliner does not always have to be installed in the entire pipe. If only individual sections are damaged, partial rehabilitation is usually sufficient. Short liner rehabilitation, also known as partliner rehabilitation, is the ideal method for this. It is used to rehabilitate individual cracks, isolated damaged areas or short rehabilitation sections. The partial liner is transported to the damaged area in the sewer using a packer system under TV control, positioned precisely and pressed into place under pressure. The liner then hardens to form a 2.5 to 4 mm thick inner formwork that reliably seals the damaged area.
Sprayliner refurbishment / spray coating process
From DN 50 to DN 150, we rehabilitate wastewater pipes in buildings using the spray coating process - quickly, easily and effectively. Our spray liner process is one of the most cost-effective rehabilitation methods for almost all pipe materials and damage patterns. First of all, the damage to downpipes, supply pipes and connection nozzles is recorded and localized using camera inspection. A new pipe is created by spraying a long-lasting epoxy resin onto the existing inner pipe wall in layers. The resin layer bonds with the old pipe to form a solid unit that can extend the service life of the pipe by decades. No breaking up of walls, ceilings and floors, no dust and dirt pollution, no noise.
Typical areas of application for Sprayliner refurbishment:
Sewer rehabilitation with robots
Sewer rehabilitation with robotic milling is another trenchless method for repairing and rehabilitating sewer pipes. Remote-controlled robots carry out the milling work inside the sewer pipe. This technology is mainly used to remove obstructions or prepare damaged areas for subsequent rehabilitation.
Typical robot milling work in the sewer system:
- Removal of concrete in the sewer pipe
- Removal of heavy limescale deposits in the sewer pipe
- Removal of obstacles in the pipe, such as reinforcing bars, drill anchors, steel pipe
- Shortening connections that protrude into the pipe
- Re-milling the inlets and lateral connections after renovation of the main line
Manhole renovation and socket renovation
We also rehabilitate old manholes and defective sleeves using trenchless methods. During manhole renovation, the vertical access shafts or manholes are repaired. In socket renovation, leaking joints (sockets) between two sewer pipes are repaired at specific points. This is particularly important as leaking pipe sockets can allow sewage to penetrate the ground or groundwater to enter the pipe.
The methods we use for rehabilitation depend on the details of the damage. We can often work with the short liner method to restore an intact wastewater infrastructure - without having to dig up the roads.
The most important methods for muffle restoration
- Short liner method: A resin-impregnated tube is positioned at the damaged area, inflated and hardens there
- Injection method: Special resins are pressed into the leaking sleeve under pressure and harden there
- Robotics: Milling and filling robots are used for local repairs
Partial repair using a stainless steel sleeve
The stainless steel sleeve is installed using a specially developed packer, which is precisely positioned at the damaged area using a sewer camera. In the case of longer damaged areas, several sleeves can be lined up seamlessly to ensure complete rehabilitation. The Quick-Lock system is suitable for all pipe materials and is highly efficient and reliable for a wide range of damage patterns. Sewer pipes with diameters from 100 mm to 700 mm can be effectively rehabilitated.
Related services: We also take care of this
In order to be able to carry out the sewer rehabilitation professionally using the liner method or another rehabilitation method, further work is required. Which of these are necessary depends on the details of the pipe damage. Kanalhelden offers all the necessary services - after all, you get everything from a single source.
The most important adjacent services for sewer rehabilitation:
- Locating / surveying / creating a site plan of the pipelines
- TV inspection / sewer inspection
- Cleaning / milling / root removal with robot or vacuum cleaner
- Leak test before and after renovation
- Documentation / acceptance report
Small and large sewer renovation projects - all carried out with passion
Short process for a trouble-free procedure Quickly achieve an intact duct in 5 steps
FAQ - Answers to the most frequently asked questions
Sewer renovation is necessary if the sewer pipe no longer complies with legal standards. This means that the sewer system is leaking and wastewater is leaking into the ground.
The most common reasons for sewer renovation:
- Renovation request from the municipality for conversion
- Damage to existing sewers during new builds or renovations
- Subsequent remediation in the event of a failed leak test
- After water damage due to leaking sewage pipes or burst pipes
- Refurbishment if a new installation is not possible due to accessibility, for example with load-bearing walls or pillars / supports
That depends on the sewer damage. Our sewer professionals examine the damage individually and draw up a renovation concept. We suggest the procedure that is as minimally invasive as possible. If structural openings are necessary, these will be discussed.
This depends on many factors. Such as the condition of the sewer system, length, diameter, connections, etc. Sewer rehabilitation using the liner method (inliner, short liner, spray liner) is always cheaper and quicker than the conventional construction method, in which the existing pipes are dug up and new ones laid.
The most important price-determining criteria:
- Length of the pipe to be rehabilitated and number of sewer sections that need to be rehabilitated
- Diameter / dimension of the pipe
- Necessary preparatory work: Milling out deposits or limescale in the pipe may be necessary in order to be able to install the liner
- Number of inlets and lateral connections of the pipe that need to be reopened / milled open
- Number of journeys required
This depends on the size of the renovation project. Around 70% of our orders take between 1 and 3 working days.
Depending on how heavily it is used and what drains through the sewer system, the service life is longer or shorter. On average, the inliner lasts 50 to 70 years. We provide guarantees in accordance with SIA190.
If it gurgles, smells or overflows: call the sewer heroes!
Whether it's an emergency in the evening or maintenance for the portfolio: We solve this efficiently and provide you with the documentation at the same time. So you can get the issue off your plate.
Kanalhelden AG
Meierhofstrasse 9
6032 Emmen
Tel. 041 562 31 31
[email protected]
www.kanalhelden.ch
Kanalhelden AG
Schulstrasse 2
8153 Rümlang
Tel. 043 215 09 36
[email protected]
www.kanalhelden.ch
Kanalhelden AG
Aarbergstrasse 15
3044 Innerberg
Tel. 031 561 92 86
[email protected]
www.kanalhelden.ch
Kanalhelden AG
Güterstrasse 19
4133 Pratteln
Tel. 061 563 31 84
[email protected]
www.kanalhelden.ch
Kanalhelden AG
Archplatz 2
8400 Winterthur
Tel. 043 215 09 36
[email protected]
www.kanalhelden.ch
Kanalhelden AG
Bahnhofplatz 4a
5000 Aarau
Tel. 056 561 68 35
[email protected]
www.kanalhelden.ch