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Underground Utility Surveys

Surveying underground across London & the UK to PAS128 standards

Working with construction & asset maintenance professionals across London & the United Kingdom, our team use the latest detection systems to produce reliable utility survey drawings in accordance with PAS128.

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Are you aware of your specific needs and/or wish to include files? Please complete our detailed form here.

Full TSA Member

THS Concepts are an accredited member of The Survey Association body.

UK Wide Service

We operate nationwide across the United Kingdom.

Years Of Experience

THS Concepts was formed over 10 years ago in 2013.

Fully Insured

£1 million in liability cover, employers' and public liability insurance.

Excellent Service

We take great pride in our exceptional 5-star ratings on both Google and Trustpilot

What You Will Receive:

On-Site Precision Survey:

  • Engage in precision with PAS 128 standard or non-GPR surveys.
  • Benefit from the expertise of our experienced technicians.
  • Document buried utilities: drainage, water, gas, BT, and electrical services.
  • Utilise advanced Leica GPS technology for accurate service recording to national grid coordinates.

Detailed DWG CAD/PDF Drawings:

  • Access clear, organised AutoCAD DWG drawings and site plans.
  • Easily identify various underground utilities on your site.
  • Drawings detail cable locations, depths, sizes, and directions for comprehensive understanding.

Comprehensive Site Photography:

  • Receive high-quality photos taken during our surveying process.
  • Visualise the surveyed area with photographic records.

The Utility Survey Process


Site Survey

Drawings Package

After Care

Example Utility Survey Drawings

Recent Reviews

Andrew Kemp
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They are very financially competitive and very helpful. I would definitely recommend them and will be using them for any projects in the near future.
Edward Sadler
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Proactive on site and quick. Customer service is of the highest level as well. Will be using for all future projects.
Courtney O'Brien
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I had a great experience with THS ... Our architect was very pleased with their output. Would certainly use them again.
Anthony Kyrke-Smith
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Very efficient service with quick turnaround. ... I have used THS-Concepts before and I will again, when I next need a detailed survey.
Chris Hildrey
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Excellent service creating a measured survey of a very complex building in central London. The process was smooth, communication was excellent throughout, and the results were impeccable.
Charlott Peters
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Great service. Communication was great, our emails was replied to promptly, the service was efficient and conducted in a timely fashion. Highly recommended!
Rachel Halley
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I used THS to do a building survey with floorplans for a property in London, I would highly recommend them. They kept me informed of progress and delivered exactly according to the agreed scope.

Frequently Asked Utility Scanning Questions

Need Your Utilities Mapped?

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