GPR Survey Services for Subsurface Investigations

Breaking ground without knowing what’s underneath is asking for trouble. Struck utilities, hidden voids, or unexpected foundations can stop a project cold. That’s where we come in.

At Intersect, our GPR survey services use ground penetrating radar to give you a clear view of what lies beneath the surface. No guesswork. No costly surprises. Just data you can act on with confidence.

Whether you’re planning a new build, maintaining infrastructure, or assessing an old structure, our radar surveys provide the certainty you need before you break ground.

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Why Our GPR Surveys Make a Difference

If you’re managing a construction site, a rail project, or a utility upgrade, you already know: surprises underground are never good. Our ground penetrating radar surveys give you reliable data you can use right away.

Here’s what you can count on with us:

Depth where it matters – our GPR equipment reaches 1–6m, depending on ground conditions.
Data you can actually use – results delivered in CAD, GIS, or PDF formats that plug straight into your plans.
Across industries – utilities, pavements, rail, archaeology, and environmental projects.
Safety built in – we work in line with HSG47 to cut down the risk of utility strikes.

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Utility Mapping and Underground Surveys

Hit a pipe or cable and the whole site grinds to a halt. Our utility surveys stop that from happening. Using ground penetrating radar, we locate gas pipes, telecom ducts, water mains, even the non-metallic ones. Studies show GPR surveys can cut the risk of strikes by up to 80%. We don’t just hand you raw data, we integrate it into your CAD or site drawings so your team knows exactly where to dig and where to avoid.

Concrete Scanning with Ground Penetrating Radar

Working on an existing building? Then you’ll want to know where the reinforcement is before you cut, core, or drill. Our concrete GPR surveys pick up rebar, post-tension cables, and voids. We’ll give you accurate slab thickness measurements too. That means no unexpected damage, no costly repairs, and a safer process for your engineers on site.

Void Detection and Subsurface Assessments

Voids form under roads, pavements, and even building floors, often going unnoticed until collapse. With high-frequency radar penetration, our void detection surveys spot cavities before they turn into hazards. If you’re responsible for asset management, this is the kind of data that lets you fix a problem before it becomes an emergency.

Utility Mapping and Underground Surveys-1

Roadway and Pavement Radar Surveys

Highways and pavements need to carry weight day after day. But weak construction layers or hidden moisture can cause failures. Our roadway GPR surveys map layer thickness, detect soft spots, and flag potential trouble areas. That gives highway engineers what they need to plan targeted repairs, saving money and keeping roads open longer.

Railway Infrastructure GPR Surveys

Rail corridors are under constant stress. Our railway GPR surveys assess ballast fouling, trackbed voids, and subgrade variation. This helps operators prioritise maintenance and avoid downtime. The data means longer track life and fewer unexpected service disruptions.

Archaeological and Heritage Radar Scanning

On heritage sites, you can’t just dig and hope for the best. Our archaeological GPR surveys allow teams to map buried walls, floors, and artefacts without breaking ground. It keeps projects on schedule while protecting what’s historically valuable. Archaeologists use our scans to guide careful excavation, preserving history for future study.

Environmental and Geological Ground Investigations

From groundwater tables to contaminated soil, environmental issues run deep. Our geophysical surveys use radar penetration to map conditions without disturbing the site. The results support remediation work, compliance checks, and long-term environmental planning.

The Benefits of a GPR Survey

Why bring GPR surveys into your project? Because the cost of not doing so is far higher.

Fewer risks – Utility strikes are not just dangerous; they’re expensive. In the UK, they account for more than £150 million in annual costs from delays, repairs, and liability claims. Our surveys drastically reduce that risk.
Minimal disruption – Because GPR is non-intrusive, your crew can keep working while we scan. No need to shut down operations or dig trial trenches.
Accuracy you can trust – With positional data often within just a few centimetres, you’ll have the clarity needed for confident planning.
Safety and compliance – Our reports support regulatory requirements and satisfy insurer expectations.

Constact Us today and see how a GPR survey can save your project from unnecessary setbacks.

Book a call today

Applications Across Industries

Our surveys aren’t just for one type of client, they’re used across industries where subsurface knowledge matters.

Construction and Infrastructure Projects

We support developers and contractors from pre-planning through to final verification. Whether it’s locating utilities, scanning slabs, or confirming as-builts, our surveys keep your timeline intact.

Environmental and Archaeological Investigations

Sensitive projects require non-intrusive methods. Our surveys provide reliable underground mapping while protecting sites, whether for ecological compliance or heritage preservation.

Reporting and Data Output

Collecting radar data is valuable, but turning it into something practical is what makes a difference. That’s why we deliver results in multiple formats designed to slot straight into your workflow.

CAD drawings – ready to overlay with your existing design plans, giving engineers the confidence to dig and build safely.
GIS mapping – ideal for asset managers and infrastructure planning, keeping long-term records accurate and accessible.
Technical reports – complete with scans, annotations, and clear recommendations, so decision-makers know exactly what action to take.

You’ll walk away with a clear picture of your site, not just a stack of unreadable scans.

Book a call today

Why Work With Intersect

At Intersect, we believe there’s a big difference between handing over raw radar scans and giving you information you can actually use. That’s why our focus is always on providing answers, not just data.

Our technicians don’t just operate equipment, they bring years of experience across construction, utilities, infrastructure, and environmental projects. By combining technical knowledge with advanced GPR technology, we produce reports that are clear, actionable, and directly tied to the decisions you need to make.

Contractors rely on our surveys to avoid utility strikes that can halt a project. Engineers depend on us to confirm slab thickness and reinforcement before drilling or coring. Site managers use our reports to demonstrate compliance and keep insurers satisfied.

Schedule a consultation today

FAQs About GPR Survey Services

How far can ground penetrating radar penetrate?

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The depth gained by GPR is determined by two primary variables: the radar frequency employed and the soil content. In ideal conditions, surveys normally cover between 1 to 6 metres. Increased frequencies yield greater resolution but reduced depth, while decreased frequencies offer deeper penetration but poorer resolution.

Does GPR find non-metallic pipes like plastic pipes?

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Yes. Unlike conventional locating methods using conductivity, GPR will locate metallic and non-metallic assets, including plastic water mains, clay drainage pipes, and fibre optic ducts.

How about bad weather, does it affect results?

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Excess water in the ground may lower radar penetration, but surveys are consistent on a year-round basis. Our instruments and methods are adaptable to site conditions, and good data are still recovered.

Can you run surveys inside buildings?

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Absolutely. GPR is commonly used indoors for concrete scanning, slab thickness measurement, and void detection before coring or cutting works.

Do you provide CAD or GIS deliverables?

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Yes. Results are issued in CAD, GIS, and PDF formats, ready to integrate into existing plans and asset records.

How long does a typical survey take?

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Site size and complexity vary, but many utility surveys are completed within one to two days.

Is GPR safe?

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Yes. It uses low-power radio waves that are completely safe for people, animals, and nearby equipment.

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A reliable and efficient company

”We've been working with Intersect for several years and have always found them to be reliable, efficient and good value for money. I can honestly recommend them."

Peter F , Commercial Director

Excellent customer care

”The whole process was very smooth from start to finish, with excellent communication and customer care. We'll definitely be working with Intersect in the future."

Henry P , Director

Efficient and knowledgeable

”The in-depth knowledge which Intersect Surveys have in their field is second to none. They're efficient, helpful and in my opinion, excellent value. "

Robert M , Site Manager

What Our
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GPR Survey Services for Subsurface Investigations

Why Our GPR Surveys Make a Difference

Our GPR Survey Services

Utility Mapping and Underground Surveys

Concrete Scanning with Ground Penetrating Radar