Drain Mapping & Charting

drain mapping

Do You Need Your Drain Mapping?

We Offer A Cost Effective Services, Fast Response & No Hidden Fees. Our Engineers are Certified NADC Surveyors

We Are Members of the National Association of Drainage Contractors


Drain Mapping & Charting

Drain mapping is the ideal solution when you need to know the location and depths of the sewers, foul water drainage, and rainwater network. Many older residential or commercial properties do not have a record of where their drainage and sewer works are within the property boundary. It is vital to know the position of foul water systems and surface water systems, especially if you are thinking of having building work carried out.

Our In-House AutoCAD Team

We have the capability to create new AutoCAD maps or to transfer GPS and drainage data onto existing AutoCAD maps. The accuracy of this data is crucially important for architects and developers, and to meet this level of quality Drain 24/7 has invested in the latest GPS and sonar technology, and crawler cam tracking units.

This enables our experienced engineers to create high-quality reports, maps and fully annotated site plans of sewers, culverts, riverbeds and wider drainage systems and features.

Types Of Drain Mapping We Do

  • Dye Test
  • Water Tests
  • Pipe Location
  • Sonar Tracing
  • GPS Mapping
  • Laser Profiling
  • Drain Charting
  • Sewer Mapping
  • AutoCAD Mapping
  • Water Flow Testing
  • Topographical Mapping

Typically, your architect will require details of the position of the drainage system so that they can calculate if they require a ‘build over’ an agreement.


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Service & Price Details

Our Drain Mapping, GPS Charting, Sewer Mapping, Sonar Tracing and Pipe Location cost is based on the level of investigation required. A standard terraced or semi-detached house would typically require 2 hours to survey and map the drainage system for our engineers to be able to produce a quality report and AutoCAD map.

  • Pipe sizes
  • Depth levels
  • GPS locations
  • Flow directions
  • Manhole locations
  • Boundary measurements
  • Schematic AutoCAD drawings

What Is Drain Mapping?

Drain Mapping is the process of locating existing underground drain lines, finding out where they go and plotting the information onto a site plan; the method used to gather this information can range from sonar tracing to GPS location, water/dye tests to laser profiling to a topographical survey.

  • CCTV Drain Survey
  • Rat & Rodent Survey
  • CCTV Sewer Inspection
  • Party wall Drain Survey
  • Structural Drain Survey
  • Commercial Drain Survey
  • Home Buyer Drain Survey
  • Drain Mapping & Charting
  • Sonar Tracing & Pipe Location

What Is Sonar Tracing?

Sonar tracing is a method to map and locate your drainage pipework; this technique relies heavily on sending out a signal from a SONDE transmitter that’s been integrated into our CCTV camera heads, the signal is then sent back up and picked up by the SONDE receiver the engineer is using above ground. The engineer is then able to pinpoint the approx. depth and location of the pipework, although sometimes the signal can become distorted due to interference from other utility services cables.

What Is GPS Mapping?

GPS mapping is a type of mapping service that integrates GPS locations with a sonar trace. The drainage engineer will use the utility GPS tracer to be able to obtain the longitude and latitude reading. This data will then be transferred to the mapping service. The benefit of this is to allow for the approx. location of the pipework to be obtained in accordance with the equipment manufacturers guidelines.


Accreditations 1Accreditations 2

ISO 2015 Certifications


ISO 14001 Environmental management Reg No: BDC00200618ISO 9001 Quality management Reg No: BDC00200617


GPS Locating Mapping

GPS Locating Mapping

Engineer carrying out Domestic Sonar Tracing

Domestic Sonar Tracing

AutoCAD Drain Map

AutoCAD Drain Map

Commercial Sonar Tracing

Commercial Sonar Tracing

Our Engineers are Certified NADC Surveyors.
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