Drain Unblocking in RH12 — 24/7 Horsham Drainage Done Right First Time

Are You Actually in RH12 — or RH13?

Horsham splits across two postcodes, and plenty of drainage firms blur the line. It’s worth knowing which you’re in, because it tells us roughly where you sit in town. Either way we cover you — but here’s the quick guide.

Why Horsham Drains Block — and What That Means for the Fix

Horsham has grown in layers, and the drainage shows it. Period streets near the market square run on old clay pipe; the post-war and modern estates around Roffey and Broadbridge Heath have newer runs that tend to block from build-up rather than failure.

The common thread is the ground. The clay-rich soil across RH12 swells in a wet winter and shrinks in a dry summer, and that yearly movement slowly shifts pipe joints out of line — especially on the older clay. Open a gap and a root from the mature tree cover around St Leonard’s Forest finds it, then wipes and fat catch on the root and the drain backs up. Clear it with rods and the flow returns for a few weeks; then it’s back, because the joint and the root are still there. On a repeat blocker we’d sooner camera the run and fix the cause than keep clearing the symptom. And it’s worth knowing the public sewer here is Southern Water’s — since the 2011 transfer, the shared run past your boundary is usually theirs, not yours, which changes who pays.

Our Drain Unblocking in RH12, by Service

Tap a service to see how we handle it in Horsham.

Jetting CCTV surveys Repairs & relining Commercial

High-Pressure Jetting

Rods open a channel; a jetter scours the whole pipe back to its walls. For set fat, scale or a root mat in an old Horsham clay run, jetting is what actually restores full flow — with no chemicals going into ground that drains toward the Arun catchment.

More on jetting →

HD CCTV Drain Surveys

If a drain’s blocked more than once, the pipe is the story. We push an HD camera through and show you the fault on screen — the open joint, root, dip or crack. It’s the survey worth having before buying an older Horsham home, or for a build-over near a Southern Water sewer.

More on CCTV surveys →

Drain Repairs & No-Dig Relining

Once the camera’s found the defect, we fix the actual fault — usually a patch or liner cured inside the existing pipe, so the garden and drive stay put. On RH12’s shifting clay and tired pitch-fibre pipe, that’s what turns a repeat call-out into a one-off.

More on repairs →

Commercial Drainage in RH12

Horsham is a busy district with thousands of small businesses — shops around Swan Walk and the Carfax, food units, offices and care homes. A drainage failure there means lost trade and a hygiene risk, so we work around your hours and can run planned maintenance that heads it off.

More on maintenance plans →

What Actually Blocks RH12 Drains

Drain Unblocking in RH12 — Common Questions