Drainage services
High-Pressure Drain Jetting
High-pressure drain jetting can help clear stubborn blockages and build-up inside drainage pipework across London & Hertfordshire.
What to expect
Clear stubborn build-up and restore flow.
Drain jetting uses high-pressure water to help break down and move heavy build-up, debris and blockages where the method is appropriate for the drainage system.
Service scope
What we can help with.
Not sure which service you need? Tell us what is happening and we’ll help establish the right next step.
Clearance of stubborn blockages
Removal of built-up debris where appropriate
Pipework cleaning
Further investigation if the problem keeps returning
High-pressure drain cleaning
Jetting is useful when a drain needs more than basic clearance.
High-pressure drain jetting sends controlled water through drainage pipework to help break down stubborn material and move debris through the system. It can be particularly useful where grease, silt, scale or other build-up is restricting flow or contributing to repeated drainage problems.
Jetting is not automatically the answer to every blockage. The drainage system, access and suspected cause still matter. Where a problem quickly returns after cleaning, CCTV inspection can help establish whether there is another obstruction or visible issue that needs to be understood before further work is planned.
Explore CCTV investigation →Useful context
Where drain jetting may be appropriate
Stubborn blockages that need more thorough pipe cleaning
Grease, fat, silt, scale or debris building up inside drainage pipework
Commercial drainage where heavier use contributes to recurring restrictions
Cleaning before CCTV investigation where build-up would otherwise obscure the pipework
Service questions
Useful things to know.
These answers are general guidance. The right approach depends on the drainage system and what is happening at the property.
What does high-pressure drain jetting remove?
Jetting can help break down and move grease, silt, scale, debris and other build-up where the method is appropriate for the drainage system.
Is drain jetting only for commercial properties?
No. Jetting can be used for domestic and commercial drainage where a deeper clean or stronger clearance method is appropriate.
Will jetting stop a blockage from ever returning?
No drainage method can guarantee that. If a problem repeatedly returns, the cause may need further investigation rather than repeated cleaning alone.
Can CCTV be used after jetting?
Yes. Where more information is needed, cleaning the pipework can help make a subsequent CCTV inspection clearer.
Drain jetting context
Where deeper drain cleaning can help.

Silt and debris
Jetting can be useful where loose material and heavier build-up are restricting flow inside accessible drainage pipework.

Scale and pipe deposits
Some drainage systems accumulate harder deposits that need a more thorough cleaning approach than basic clearance alone.

Grease and fat build-up
Commercial and heavily used drainage can collect grease and fat that progressively narrows the usable pipe diameter.
Understanding drain jetting
When high-pressure water is useful and when a different drainage method makes more sense.
Drain jetting is a cleaning and clearance method rather than a diagnosis on its own. It can be effective where grease, silt, scale or stubborn debris is restricting flow, but the drainage system and the suspected cause still need to be considered before deciding it is the right approach.
Common causes
Build-up that can make deeper pipe cleaning useful
Grease and fat deposits
Fats and oils can cool and stick to the inside of pipework, gradually catching other waste and narrowing the route. This is especially relevant where drainage carries frequent food-related waste or has a history of greasy build-up.
Silt and general debris
External drains and gullies can collect silt, grit and debris that basic clearance may not remove thoroughly. Jetting can help move this material where access and pipe condition make the method suitable.
Scale and reduced pipe diameter
Mineral scale and long-term deposits can reduce the usable diameter of drainage pipework. A drain may continue flowing while becoming progressively more restricted, which can contribute to repeated slow drainage or blockage symptoms.
Cleaning before further investigation
Where heavy build-up obscures the inside of a pipe, cleaning can make a later CCTV inspection more useful. That does not mean every survey needs jetting first; it depends on whether visibility is being affected.
Choosing the right method
How drain jetting fits into the wider drainage process
The strongest cleaning method is not automatically the best first step. The route should depend on the symptoms, access and what is likely to be inside the pipework.
Check the likely cause
It is useful to understand whether the issue looks like soft build-up, a local obstruction, heavy debris or a recurring fault. That helps avoid using jetting where another form of clearance or investigation would be more appropriate.
Use high-pressure water where suitable
Jetting sends controlled water through the drainage system to help break down and move stubborn deposits. The pressure and approach should suit the pipework, access point and type of material being removed.
Investigate if the problem returns
If flow improves but the same symptoms soon come back, repeated cleaning may not address the underlying cause. CCTV inspection can help identify whether there is another visible obstruction or defect contributing to the problem.
Property context
Jetting can be useful across domestic and commercial drainage
Homes
Useful for stubborn drainage build-up where simpler clearance has not properly restored flow.
Landlords
Can help where recurring restrictions affect rented property and deeper cleaning is appropriate.
Businesses
Particularly relevant where heavier usage, grease or debris contributes to repeated drainage problems.
Managed properties
Can form part of reactive work or planned cleaning where recurring build-up has been identified.
More questions
Useful questions before choosing the next step.
Is drain jetting better than rodding or basic clearance?
Not in every situation. Jetting is useful for stubborn build-up and deeper pipe cleaning, while a simple local obstruction may need a simpler method. The right choice depends on the cause, access and condition of the drainage system.
Can jetting damage drains?
Any drainage method should be chosen with pipe condition in mind. Where there is concern about fragile, damaged or unusual pipework, the system may need to be assessed before high-pressure cleaning is used.
Simple process
From problem to next step.
Urgent drainage users should not need to fight through a long form before getting help.
Tell us what’s happening
Call Pulse or use the enquiry option below with the problem and property location.
We assess the issue
We establish the most appropriate drainage service and next action.
Move forward clearly
You get a clear route for the job, investigation or follow-up work.
Need drainage help?
Speak to Pulse Drainage.
For urgent issues, calling is the fastest route. For planned work, use the enquiry option below with the issue and location.
Request a booking
Tell us what’s happening.
For urgent drainage issues, calling is still the fastest option. For planned work or non-urgent problems, send the details below.