Drain Jetting vs Drain Survey: Which Do You Actually Need?

# Drain Jetting vs Drain Survey: Which Do You Actually Need?

If you've got a slow drain, a bad smell, or water backing up outside your Yorkshire home, you've probably seen two services advertised everywhere: drain jetting and CCTV drain surveys. They sound similar, they're often offered by the same companies, and it's not always clear which one you actually need — or whether you need both.

Here's the honest answer, from engineers who do this every day.

What Is Drain Jetting?

Drain jetting (also called high-pressure water jetting) uses a specialised machine to blast water through your pipes at pressures typically between 3,000 and 4,000 PSI. A flexible hose with a specially designed nozzle is fed through the drainage system, and the high-pressure water scours away blockages, grease, scale, and debris.

It's effective. For a straightforward blockage caused by fat, oil, and grease (FOG) build-up or general sludge, jetting will usually clear the pipe and restore flow within an hour.

When is drain jetting the right choice?

Drain jetting is the right choice when you have a confirmed soft blockage — meaning grease, silt, or organic material — and your drainage system is structurally sound. It's essentially a deep clean for your pipes. Regular jetting can also work as preventative maintenance, particularly for commercial kitchens and older properties where grease build-up is a recurring issue.

What Is a CCTV Drain Survey?

A CCTV drain survey is a diagnostic inspection. An engineer feeds a high-definition waterproof camera through your drainage system, recording everything as it goes. You get a full video recording, a written report with defect locations, and a clear picture of the condition of your pipes.

Unlike jetting, a survey doesn't fix anything — it tells you exactly what's wrong so you can make an informed decision about what work is actually needed.

What problems can a CCTV drain survey detect?

A CCTV drain survey can detect a wide range of issues that jetting alone will never identify, including tree root intrusion, cracked or fractured pipes, collapsed drain sections, displaced joints, pipe deformation in pitch fibre systems, bellies and dips where water pools, and rat entry points. These structural defects are the reason a blockage keeps coming back — and no amount of jetting will fix them.

Why Jetting Without a Survey Can Waste Your Money

Here's the scenario we see regularly across Leeds, Bradford, Wakefield, and Harrogate: a homeowner calls out a drainage company for a blocked drain. The company jets the pipe, the blockage clears, and everyone's happy — for about six weeks. Then it blocks again. Another call-out, another jetting session. Repeat three or four times, and you've spent hundreds of pounds treating a symptom while the actual cause — a cracked pipe, root intrusion, or partial collapse — sits untouched underground.

Water UK estimates that around 370,000 sewer blockages occur annually across England and Wales, costing the water industry approximately £100 million per year. A significant proportion of recurring domestic blockages are caused by underlying structural defects rather than simple build-up — which means jetting alone was never going to provide a lasting fix.

The smarter approach? Get a CCTV survey first. Once you know what's actually happening inside the pipe, you can make the right call — whether that's jetting, drain relining, a targeted repair, or simply carrying on as normal because the system is fine.

When Do You Need Both?

In many cases, the best outcome comes from combining both services. A survey first identifies the problem, then targeted jetting clears any blockage so the engineer can get a clean view of the pipe walls and joints. This is the approach we use at Yorkshire Drain Survey — because a camera trying to inspect a pipe that's full of standing water or debris won't give you a reliable picture.

For pre-purchase drain surveys, the combination is particularly valuable. You need to know the full condition of the drainage system before committing to a property purchase, and a clean pipe gives the camera the best possible view. Our reports are accepted by solicitors, mortgage lenders, and insurers across Yorkshire.

How do you know if your drain problem is structural or just a blockage?

The key signs that suggest a structural issue rather than a simple blockage include: recurring blockages in the same location (more than twice in 12 months), subsidence or dipping near drain runs, persistent damp or sewage smells despite clearing, and the property being pre-1960s with original clay or pitch fibre drainage. If any of these apply, a CCTV survey is the logical first step — it could save you from an expensive cycle of repeat jetting.

Why Equipment Quality Matters

Not all drain surveys are equal. Budget operators using basic push-rod cameras may miss defects that a professional survey with high-specification equipment will catch. At Yorkshire Drain Survey, we use iTouch CCTV camera systems — industry-leading equipment that delivers crystal-clear HD footage even in challenging pipe conditions. Combined with experienced engineers who know what they're looking at, this means fewer missed defects and more reliable reports.

A professional survey using best-in-class equipment costs more than a budget alternative — and it's worth it. The difference between a report that catches a hairline crack and one that misses it entirely could be thousands of pounds in undetected damage down the line. Call 0113 734 2245 for a quote and we'll give you clear, upfront pricing before any work begins.

The Bottom Line

Drain jetting fixes blockages. A CCTV drain survey finds the cause. If you only ever jet, you're gambling that there's nothing structural going on. If you survey first, you know exactly what you're dealing with — and you only pay for the work that's actually needed.

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Need to Know What's Going On Inside Your Drains?

Don't keep paying to clear the same blockage. Get the full picture first.

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