PAS 128 is the industry-recognised UK specification for underground utility detection, location, and verification. It provides a consistent framework for how surveys should be carried out, and sets clear accuracy levels depending on project requirements.

We carry out PAS 128 surveys using the latest technology, including ground penetrating radar (GPR) and electro magnetic location equipment, to give you the clearest possible picture of what’s hidden below ground.

A PAS 128 utility survey offers benefits that go far beyond compliance:

• Industry-recognised accuracy: giving you confidence in design and planning.
• Reduced risk of strikes and delays: protecting people, assets, and infrastructure.
• Fewer costly delays: minimising rework and unexpected project interruptions.
• Better decision-making: providing reliable data before you break ground.

Our survey teams are fully trained and equipped with advanced GPR utility mapping technology. By combining different survey methods, we can detect and map utilities with a high level of confidence, producing accurate CAD drawings or BIM-ready models that integrate seamlessly into your project workflows.

We work across a wide range of environments, from congested city centres and highways to industrial sites. With over 80 surveyors, engineers, and CAD specialists, we have the expertise and resources to handle projects of any scale.

Choosing a PAS 128 survey means investing in safety, efficiency, and certainty. Whether you’re in the planning, design, or construction phase, our surveys give you the data you need to make informed decisions and move forward with confidence.