Complete Solutions for the Utility Surveying Industry
Moving beyond "best guesses." We provide PAS128 compliant utility surveys that deliver a clear, defensible record of underground assets, allowing your team to design and excavate with absolute confidence.
Why PQS?
PQS Tech is an engineering-led consultancy, not a standard survey firm. We specialise in the high-stakes environment of sub-surface intelligence, where "near enough" is a liability. Because our experts operate in the most congested urban and industrial landscapes, we provide the technical rigour required to turn invisible hazards into a clear, actionable roadmap.
Expert-Led Managed Services: We handle the entire technical load. From complex PAS128 detection to high-fidelity data processing, our specialists deliver the sub-surface visibility you need to design and excavate with absolute certainty.
The Confidence to Dig: We utilise the most advanced GPR and EML technology to bridge the gap between "signals" and "solutions." By providing a defensible record of underground assets, we ensure your project remains safe, compliant, and on schedule.
We don’t just deliver data; we deliver the certainty your project demands.
Build your internal capability. We supply and support the industry’s leading hardware and processing software.
Need results now? Deploy our field teams to capture, process, and deliver data for your specific project.
We are unique because we do both. We don't just sell boxes; we use this equipment in the field every day. And we don't just offer services; we have direct access to the latest cutting-edge tech.
You get advice from active users, not just salespeople. We know what works in the real world.
You get access to the absolute best technology without the overhead cost.
Precision at Every Level
We don't just scan; we classify. By adhering to the PAS128 specification, we provide a clear audit trail for every utility detected, categorised by the level of confidence:
We deliver utility mapping to the highest UK industry standards. From desktop studies (Category D) to high-precision geophysical detection (Category B), we provide a defensible and rigorous audit trail of the sub-surface environment.
High-accuracy site maps. Hire our team or equip your own.
Our experts utilise Ground Penetrating Radar (GPR) and Electromagnetic Locators (EML) to identify metallic and non-metallic services.
For projects requiring absolute certainty (Category A), we manage the precise exposure of critical assets. This physical verification ensures 100% accuracy of utility type, material, and depth before excavation begins.
Comprehensive risk management starts before we arrive on site. We aggregate and analyse statutory undertaker records to provide a baseline understanding of the utility network, streamlining the on-site detection process.
We supply Topnet Live correction services to deliver instant, high-accuracy positioning for all network-capable rovers, eliminating the need for local base stations."
