Drain jetting in London costs between £150 and £600 for most residential jobs. The spread is wide because the same piece of equipment — a high-pressure water jetter — is used for very different situations: a simple kitchen grease blockage, a 30-metre shared lateral in a Victorian terrace, a root-infiltrated clay pipe, or a commercial restaurant drain. Knowing which tier your problem sits in before you call means you will not be surprised by the final price.
What Drain Jetting Actually Is
High-pressure drain jetting uses water at pressures of 80–200 bar, pumped through a flexible hose with a specialist nozzle, to scour blockages and build-up from inside the pipe walls. Unlike rodding — which pushes a blockage through — jetting breaks it up and flushes the debris away. The result is a clean pipe, not a cleared one.
Jetting is the industry standard for anything beyond the simplest blockage, and it is the method recommended by Water UK for accumulated grease and scale where mechanical rodding has failed. It is also the correct first step before a CCTV survey, because a camera pushed through uncleared debris gives a poor picture.
For a transparent fixed-price breakdown, see our drain jetting cost page.
The Three Price Tiers in London (2026)
Tier 1 — £150 to £250: Domestic drain, accessible, single property
This covers a single blocked drain serving one property — typically a kitchen, bathroom, or combined run — accessed through an inspection chamber on the property. The blockage is grease, hair, or debris accumulation rather than roots or structural damage. The engineer attends, jets the line, performs a water flow test, and reports verbally. Most residential kitchen and bathroom blockages sit here.
Tier 2 — £250 to £450: Shared lateral, deep run, restricted access
This tier covers longer runs (15 metres or more), shared drains serving multiple properties, pipes with restricted access (no inspection chamber, entry through a gully or toilet), or drains with heavier root or fat build-up requiring multiple passes. Victorian properties with drains running under gardens, side returns, or through basements frequently fall here. Time on site is longer and equipment use is higher.
Tier 3 — £450 to £600+: Commercial, CCTV plus jetting, or emergency out-of-hours
Commercial drain jetting for restaurants, flats blocks, or mixed-use properties, combined CCTV-and-jetting visits, and out-of-hours emergency callouts all sit in this tier. A combined CCTV and jetting visit — where the engineer surveys the pipe before and after jetting to confirm the blockage has cleared and check for structural issues — is the gold standard for recurring blockages and older properties.
What Affects the Price in London Specifically
Pipe length and depth. A 30-metre run under a rear garden is three to four times the work of a 10-metre run under a front path. Furthermore, deeper pipes take longer to access. They also require more water volume to flush.
Access restrictions. No inspection chamber, a chamber buried under decking, or a pipe accessible only from a ground-floor toilet all add time. Engineers may need to return once access is improved, adding a second attendance charge.
Blockage composition. Grease and hair jet clear quickly. Compacted fat (solidified cooking oil), root intrusions, or scale deposits require multiple nozzle passes and higher pressures, adding time and equipment wear.
Out-of-hours. Weekend and night callouts typically add £75–£150 to the base price. For non-flooding situations, calling during standard weekday hours saves meaningfully.
London operating costs. Congestion zone charges, parking, and the higher cost of operating in the capital add a real premium versus jobs outside Greater London. Inner London prices typically run 15–25% above outer London equivalents.
What Is Included in a Jetting Quote
A straightforward fixed-price jetting job should include:
- Labour for the attending engineer
- All jetting equipment and water
- Clearance of the primary blockage
- A post-jet flow test (running water through to confirm the drain is clear)
- A verbal condition report — what was found, what was cleared, and any concerns noted
What it does not typically include: CCTV footage, a written condition report, excavation works, or re-attendance if the drain re-blocks within a short period due to a structural cause rather than accumulation. Always confirm what is included before approving the job.
When Paying More Is Worth It
Paying for a combined CCTV and jetting visit makes sense when:
- The drain has blocked more than twice in the same section within 12 months
- The property is a pre-1970 build in inner London with clay lateral drains and mature trees overhead
- You are buying the property — pre-purchase surveys routinely find root intrusions, displaced joints, and partial collapses that a jetting-only visit would not detect
- The blockage involves a shared drain serving multiple properties — a structural defect in that run affects all connected properties
If the cause is structural — a root intrusion, a cracked pipe, or a collapsed joint — jetting will clear the symptom but the blockage will return. Only a CCTV survey can confirm the cause and allow a permanent fix via pipe relining or drain repairs.
See our guide to high-pressure drain jetting for a full explanation of when jetting is the right solution and when a more involved repair is needed.
How to Get an Accurate Quote
To get a fixed price over the phone, you need to tell the engineer:
- What type of drain (kitchen, bathroom, external gully, combined run)
- Whether you have access to an inspection chamber
- Roughly how long the run is (if known) and what the drain serves (one property or shared)
- Whether the drain is fully blocked or slow-running
- Whether the problem is recurring or first-time
With that information, a reputable company can give you a firm price before attending. If the company will only quote after inspection, ask for a fixed inspection fee and a price range — it protects you from open-ended billing.
Frequently Asked Questions
How long does drain jetting take in London?
A straightforward domestic job typically takes 45–90 minutes on site. Longer runs, shared laterals, or jobs requiring multiple passes for heavy root or fat accumulation take 2–3 hours. Commercial jobs and combined CCTV-plus-jetting visits can take half a day.
Is drain jetting safe for old clay pipes?
Yes, at appropriate pressure. Experienced engineers reduce jetting pressure for older clay pipes and use penetrating nozzles rather than high-impact rotating heads. The risk of damage from correctly applied jetting is very low — far lower than the risk of leaving a root infiltration or fat build-up untreated.
Does drain jetting remove roots?
Jetting cuts through soft root intrusions and smaller root masses. However, it does not remove the root from outside the pipe. The root will regrow unless the pipe crack through which it entered is repaired. A post-jet CCTV survey will confirm whether relining or excavation is needed to prevent regrowth.
Why is drain jetting more expensive in London than the rest of the UK?
Congestion zone fees, parking charges, higher fuel costs, and the general cost of running a business in the capital all feed into the price. Typical London rates run 15–25% above equivalent work in other major UK cities.
Can drain jetting clear a fully blocked drain?
In most cases, yes. High-pressure jetting is highly effective on grease, fat, hair, and even compacted debris. Very dense root masses, collapsed pipe sections, or structural obstructions may require CCTV investigation and possibly excavation before the drain can be fully restored. Call 0204 593 7845 if you are unsure what your drain needs.