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Drain Mapping

Our expert drain mapping services accurately plot the location, size, and depth of your drainage system to produce a detailed drainage map or drainage plan for construction projects, flood planning, compliance, and more.

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Locally Employed Engineers

24/7 Emergency Callouts

Highly Trained Engineers

Years Of Experience

Asset And Drain Mapping Services | Metro Rod

Our Expert Drain Mapping Service

At Metro Rod, we specialise in drainage maps and drainage layout plans. Our highly trained engineers provide accurate drain mapping surveys and expert advice on the condition of your drains for domestic, commercial, construction, highways, manufacturing, and property development sectors. 

We understand the importance of precise drain mapping, which is why our service is tailored to your needs. Find your local Metro Rod drain mapping specialist near you or call 0800 66 88 00 for a free site visit and no-obligation quote. 

What is Drain Mapping? 

Drain mapping, also known as asset mapping, uses advanced GPS technology to create a bespoke map of drains, including pipes, manholes, and gullies. A drainage mapping survey also identifies pipe size, depth, directional flow, and foul water drains, giving you a complete overview of your drainage system. 

Why Consider Drainage Mapping? 

A drain map is a valuable planning and site management tool across a variety of industries, having a wide range of benefits: 

  • Supports pollution prevention and flood risk management, enabling fast emergency response to spills, fires, or other incidents. 
  • Ensures compliance for regulated sites such as COMAH (Control of Major Accident Hazards) and EPR (Environmental Permitting Regulations) by providing accurate, legally compliant drain maps. 
  • Required before building projects to avoid costly damage to existing drainage systems. 

How Does Drain Mapping Work?

At Metro Rod, we use cutting-edge GPS technology with 2cm accuracy and OSGM15 coordinates to deliver precise drain mapping surveys. After collecting data, we produce a tailored report quickly to meet your exact specifications. Our engineers work efficiently on-site with minimal disruption, ensuring accurate results and exceptional customer service. 

Further Reading on Drain Mapping:

  • What Does the Drain Mapping Report Include?

    Drain mapping results in an in-depth drainage layout plan, which can be tailored to your requirements. The report includes four key elements, including: 

    • A site map with a schematic drawing of the drainage system 
    • An asset register detailing the location, size, access points, and use of each drain section 
    • Manhole record cards showing images of each access point 
    • An interactive Google Maps overlay. Allowing you to click on each drain section and see the corresponding granular details and photos. 

    We can provide a DXF file compatible with your CAD system, including OS tile backgrounds if needed. Additionally, we offer bespoke data collection to map external features such as streetlights, park benches, and more to meet your specific requirements. 

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Customer Reviews

Here's what our customers say about us

    Ewalina Uwaga Wasp

    We have had a five month issue where a Devonport rat trap was partially blocked: all outlets Read morewere thus blocked by open sewage combined with inches of flood water on occasion. Today a gentleman from Metro rod called Andy fixed the entire mess within half an hour, in truly appalling weather conditions. My thanks to him. Also two other good lads who arranged a tanker. More power to your elbow, Andy. Thank you.

    Andy capp

    Ben attended our shopping centre today..sep 27th,2025. Absolutely amazing service. Arrived with a smile, wasn't fazed by the problem Read moreand got stuck in. Service was brilliant, drains unblocked, and a very grateful shop owner and maintenance team. Would definitely recommend this company.

    Asher Israel

    Metro Rod engineer Harry along with Atac engineer Ben both worked tirelessly to ensure residents of Headway Read moreGardens had their broken waste system patched to work with 1 pump as the other had stopped. Their work is still intact as the sole pump is still doing the business. Thank you to them and their companies for doing a great job!

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Drain Mapping FAQs

What industries is drain mapping useful for?

There are many industries that benefit from drain mapping. Typically, mapping is wellsuited for councils and highway authorities, construction companies, and those in manufacturing. Mapping can also be useful for domestic pipes and commercial outlets. If there is a need to fully understand how a drainage system sits beneath the surface of the ground, then drain mapping can be an incredibly useful tool. 

What is included in a drain mapping report?

At Metro Rod, we deliver a comprehensive drain mapping report, including pipe details, manhole and gully locations, and water flow direction. You’ll also receive a detailed schematic drawing, an asset register, manhole record cards with images, and a Google Maps overlay for interactive site exploration. 

How long does drain or asset mapping take?

How long drain mapping can take depends on the size of the site that needs to be mapped. Smaller sites take less time than larger sites. We understand the importance of minimising any disruption to your business and will work with you to provide the service at a time that suits you. If you’d like to know how long drain or asset mapping would take on your site, please contact your local Metro Rod drain mapping specialist or call us on 0800 66 88 00.

What special software is used in drain mapping?

To conduct a drainage map, we use a series of specialist software designed to give you the most accurate drainage map possible. This specialist software includes a Global Navigation Satellite System (known as a GNSS) that is accurate up to 2cm. Our engineers also track coordinates using OSGM15. 

How much does drain mapping cost?

The cost of drain mapping can vary depending on a few factors, including the size of the drainage area that needs to be mapped. Contact your local drainage engineer or call us today on 0800 66 88 00 for a no-obligation free quote. 

How do I find drainage plans for my house?

To find drainage plans for your house, start by checking property documents or building plans, as they often include this information. If unavailable, contact your local water authority or council for records. Alternatively, a professional drain mapping service like Metro Rod can create an accurate, up-to-date plan using GPS technology, ensuring you know the location, depth, and flow of your drainage system.