Water is condensed and pressurised before being forced through a small-diameter jet nozzle, producing a high-speed stream capable of breaking down almost any solid material inside a drainage pipe. The pressure can be adjusted depending on the pipe type, the nature of the blockage, and the condition of the surrounding structure. The jetting head is fed into the drain and manoeuvred through the system, clearing debris and deposits as it goes. For particularly stubborn build-up, specialist cutting nozzles are used to break down the material before it’s flushed through the system.
Why Choose us for high-pressure water jetting in London?
High-pressure water jetting is the most versatile and widely used method for clearing blockages, removing build-up, and preparing pipework for further treatment. It works quickly, reaches areas that other methods can’t, and when carried out correctly, leaves the internal surface of the pipe in proper condition without causing damage to the surrounding structure.
We operate jetting units running at pressures between 3,000psi and 10,000psi, giving our engineers the capability to deal with everything from routine blockages and grease accumulation to years of scale, cement, and compacted debris. All of our engineers are fully trained in the safe use of jetting equipment across that full pressure range, and we carry the right nozzles and setup for the job at hand rather than applying a one-size-fits-all approach.
Jetting is frequently used alongside CCTV surveys, electro-mechanical cleaning, descaling, and drain lining as part of a wider programme of works, and we can coordinate all of those elements without the need for multiple contractors.
Enquire Today
Enter your details below and a member of our team will be in touch
How does high-pressure water jetting work?
Water is pressurised and forced through a specialist jet nozzle at high speed, producing a concentrated stream powerful enough to cut through blockages, strip surface coatings, and dislodge deposits from the internal walls of the pipe. Depending on the job, we use pure water or water combined with appropriate cleaning agents to achieve the best result.
The jetting hose is fed into the drain and guided through the pipework, clearing material as it progresses. The method is particularly effective at removing fats, oils, grease, silt, and scale, and it’s commonly used as a preparatory step before drain lining, where the internal surface needs to be thoroughly cleaned before the lining sleeve is inserted.
Where a CCTV survey has already identified the nature and location of the problem, jetting can be targeted precisely at the affected section, making the process faster and more efficient.
Frequently Asked Questions
What are the benefits of high-pressure water jetting?
Jetting is fast, non-invasive, and effective across a wide range of drainage problems. It clears blockages thoroughly rather than simply displacing them, removes build-up from the internal walls of the pipe rather than just the flow channel, and leaves the system in significantly better condition than most alternative clearing methods.
It’s also a practical preparatory step before drain lining or descaling, where a clean internal surface is essential for the subsequent treatment to work properly. For commercial and high-occupancy sites, the speed of jetting means disruption is kept to a minimum and normal operations can resume quickly.
How much does high-pressure water jetting cost in London?
The cost depends on the size of the system, the nature of the blockage or build-up, and whether jetting is being carried out as a standalone service or as part of a wider programme of works. For most residential properties, jetting falls within the range of £150 to £500.
Larger commercial sites, extensive descaling programmes, or jobs requiring specialist nozzles and higher-pressure units will sit higher. We’ll assess the situation and provide a clear quote before any work begins, with an honest explanation of what’s involved and what could affect the overall cost.
Why should London Drainage be my first choice for high-pressure water jetting?
The difference between effective jetting and a temporary fix often comes down to the equipment used and the skill of the engineer operating it. We use professional-grade jetting units capable of operating across a wide pressure range, which means we can match the equipment to the job rather than working within the limitations of lower-capacity alternatives.
Our engineers are fully trained across the complete range of pressures we work at, and we carry the specialist nozzles needed for different pipe types, blockage profiles, and preparatory work. Combined with our CCTV survey capability and drain lining expertise, we can assess, clear, and repair drainage systems from start to finish as a single, coordinated service.