High-Pressure Drain Jetting London – Professional Drain Cleaning
High-pressure drain jetting is the most effective method available for clearing stubborn blockages and deep-cleaning drainage systems. HydraFlow provides professional drain jetting services across London for both residential and commercial properties — cutting through grease, scale, roots, and debris that rodding simply cannot shift.
What Is Drain Jetting?
Drain jetting — also known as hydro jetting or water jetting — uses a powerful pump to force water through a drain at extremely high pressure, typically between 1,500 and 4,000 PSI. A flexible hose fitted with a specialist nozzle is fed into the drain; as the nozzle advances, the high-pressure water jet scours the pipe walls clean and blasts the blockage downstream into the sewer. Unlike rodding, which only pushes a hole through a blockage, jetting removes it completely.
When Do You Need Drain Jetting?
Stubborn or Recurring Blockages
If your drain keeps blocking every few weeks or months despite being cleared, there is almost certainly a build-up of fat, scale, or debris that rodding has not fully removed. Jetting strips the pipe walls completely, giving you a clean start.
Grease and Fat Blockages
Commercial kitchens and restaurants produce massive quantities of fat that solidifies inside drainage pipes. High-pressure jetting at 3,000–4,000 PSI emulsifies the grease and flushes it completely from the system.
Root Intrusion
Tree roots that have infiltrated drain pipes can be cut back with specialist root-cutting jetting nozzles. This clears the immediate blockage, though a permanent solution such as pipe lining is usually recommended where root intrusion is severe.
Preventative Maintenance
Many commercial operators schedule regular jetting every 6–12 months to prevent blockages before they occur. This is especially common for restaurants, schools, hospitals, and blocks of flats.
Limescale Build-Up
London hard water leaves mineral deposits on pipe walls over time. Specialist descaling jetting nozzles remove this build-up, restoring full bore and preventing future blockages from accumulating.
Pre-Survey Cleaning
Before carrying out a CCTV drain survey, jetting the pipe first ensures the camera gets a clear view of the pipe condition. A clean pipe produces a far more accurate survey result.
How Drain Jetting Works – Step by Step
- Assessment: We locate the access point and assess the drain layout before selecting the right nozzle and pressure for the job.
- Nozzle selection: A penetrating nozzle breaks through blockages; a flushing nozzle cleans pipe walls; a root-cutting nozzle slices through root mass. We match the nozzle to the problem.
- Jetting: The hose is fed into the drain and the pump activated. The nozzle advances through the pipe, blasting debris back toward the access point.
- Verification: After jetting, we run water and confirm free flow. Where required, we inspect with a CCTV camera to verify the pipe is fully clear.
Drain Jetting Pressures Explained
- 1,500–2,000 PSI: Suitable for domestic drain cleaning, soft blockages, and older or fragile pipes
- 2,500–3,000 PSI: Standard commercial jetting, effective for grease and scale
- 3,500–4,000 PSI: Heavy-duty industrial jetting for severe grease blockages, root cutting, and main sewer lines
Drain Jetting vs Drain Rodding
Rodding is faster and cheaper for simple, soft blockages close to an access point. It pushes a hole through the blockage but leaves residue on pipe walls.
Jetting takes longer and costs more but removes the blockage completely, cleans the pipe walls, and significantly reduces the chance of a recurrence. It is the right choice for persistent or severe blockages.
Residential and Commercial Drain Jetting
Residential: Kitchen drains, bathroom drains, external gullies, garden drains, and shared drains in blocks of flats. We work carefully in domestic properties, protecting floors and surfaces when feeding equipment through the house.
Commercial: We regularly jet drains for restaurants, hotels, schools, supermarkets, warehouses, and office blocks across London. We can work outside of business hours to minimise disruption.
Areas We Cover
Pricing
- Domestic drain jetting: from £120
- Commercial drain jetting: from £200
- Root cutting jetting: from £200
- Planned maintenance contracts: discounted rates available on request
Frequently Asked Questions – Drain Jetting
Is drain jetting safe for old or fragile pipes?
Our engineers assess pipe condition before jetting and adjust pressure accordingly. For very old or damaged pipes, we may recommend a CCTV survey first. We will never jet a pipe we think could be damaged by it.
How long does drain jetting take?
A standard domestic drain jetting job typically takes 45–90 minutes. Commercial work on longer or larger pipe runs can take half a day or more.
Can you jet a drain in bad weather?
Yes. Our jetting equipment operates in all weather conditions year-round — in fact, winter is one of our busiest periods as cold temperatures cause grease to solidify faster.
How often should I have my drains jetted?
For domestic properties, jetting every 2–3 years as preventative maintenance is sensible. For commercial kitchens, we typically recommend every 3–6 months depending on volume.