Trenchless lining and patch repair
We employ trenchless technologies to repair damage and joints in pipes, drains or sewers, preventing leaks, floods and environmental damage without the disruption, expense or emissions associated with excavation.
Following a CCTV survey to evaluate the condition of the pipe, our experienced engineers assess the site and local environment and calculate the most appropriate solution.
Robotic cutters are used to open any laterals that are covered up when a liner or patch is installed, to reconnect services and prevent flooding. In addition, they are employed when there is an item in a drain run that cannot be removed using our high-pressure water jetting attachments.
- We can line drains and sewers of any shape or diameter.
- Over 150,000km of drainage already lined.
- Pre and post-surveys ensure the work is carried out accurately and to a high standard.
- State-of-the-art equipment includes patching vans, UV curing systems, robotic cutters, camera systems, jet-vacs, LED curing systems, inversion systems, dragging systems and pressure main systems.
Longetivity and increased capacity
Cured-in-place pipe (CIPP) lining
Cured-in-place pipe - or CIPP - lining creates a new, smooth pipe inside the existing pipe to prevent further leaks or damage. It is used when the issues with the drain run are too numerous to install localised patches, or it is more cost-effective to line the whole pipe.
By providing a super-smooth interior surface, liners remove any rough areas that can cause debris to build up, helping to not only restore flow capacity in your pipes but improve it.
A flexible tube, infused with resin, is pulled through the pipe and inflated with air, forcing the resin against the host pipe. The resin fuses with the existing pipe wall and is cured using hot water, ambient, UV light or blue light methods to create an impermeable bond.
There is no digging involved as the relevant section can be accessed from manholes, and the revolutionary technology can be fed through to the affected area.
There are a number of different types of liner, each suitable for different situations.
Cured-in-place repair (CIPR)
CIPR provides localised spot repair for minor defects. It is a fast, economical, and robust solution to remediate pipes with specific defects, leaving a smooth impermeable finish. The resin is minimal shrinkage making it the ideal solution for preventing water leakage.
This highly specialised technique is used for reopening lateral connections and putting the sewer back into operation. Precise and controlled cutting of defective pipework, hard deposits, root ingress, and encrustation is used to remediate underground sewer and drainage systems.
The robotic cutter is remotely operated and equipped with cutting tools, such as high-speed rotating blades, to remove obstructions, roots, and other debris, as well as to trim, shape, or repair damaged sections of pipes.
It allows for accurate and targeted pipe maintenance without the need for extensive excavation, reducing costs and minimising disruption to the surrounding environment.
The use of pneumatic moling and directional drilling techniques allow for the installation of pipes or ducting where excavation is not possible or would cause significant disruption, for example under roads and water courses, or in environmentally sensitive areas. The methods are fast and efficient resulting in less disruption and environmental impact.
Here to keep your drainage flowing freely
Our experts are available to quickly diagnose issues, provide cost-effective solutions, and carry out routine maintenance to get your drainage network back to normal as soon as possible.Speak to our experts