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Diagnostics

Drain Mapping & Schematics

Know exactly where every pipe, chamber and connection is.

Whether you're planning an extension, submitting a build-over agreement, managing a property portfolio or filing a subsidence claim, an accurate drainage map is essential. We combine CCTV, sonde tracing and site survey to produce clear, dimensioned drainage schematics.

Warning signs

  • Planning an extension over drainage
  • Managing a multi-property portfolio
  • Insurance requires drainage plans
  • Preparing for a build-over agreement with water company

Common causes

  • Old properties with no as-built drawings
  • Extensions carried out without records
  • Unmapped shared drainage
Our process

How we handle drain mapping & schematics

01
Site walk-through
Identify every chamber, gully and rainwater point.
02
Sonde tracing
Locate underground pipe routes precisely.
03
CAD schematic
Clear plan produced to standard scales.
04
Digital delivery
PDF and CAD files supplied for planning and insurance.

Kit we bring

  • Sonde locators
  • CCTV push-rod cameras
  • CAD drainage plan production

While you wait — do

  • Have drainage mapped before starting any building work over drains

Please don't

  • Don't rely on 50-year-old planning drawings — much has probably changed

Common questions

Do I need this for a build-over agreement?
Yes — most water companies require a drainage plan showing the run under the proposed extension.

Blocked drain? Not for long.

Speak to a real engineer in under 20 seconds. 24/7, 365 days a year.

Call 24/70330 1331 347
Call 0330 1331 347