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London's specialist concrete scanning and NDT service.

GPR Concrete Scanning London | NDTScan

GPR concrete scanning, ultrasonic testing, and compressive strength assessment across Greater London. Rapid mobilisation for pre-drill surveys, PT slab investigations, and structural NDT.
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Overview

London contains the largest concentration of complex concrete construction in the UK. Post-tensioned commercial and residential development built since the 1980s, dense mid-century concrete office stock, significant public infrastructure, and an active programme of residential conversion and basement construction all create demand for specialist pre-drill GPR scanning and concrete NDT.

NDTScan provides GPR concrete scanning and NDT services across all 32 London boroughs and the City of London. For commercial projects in the City, Canary Wharf, Southwark, and Westminster, we work alongside contractors, structural engineers, and building surveyors on pre-drill surveys, RAAC assessments, structural condition surveys, and compressive strength investigations. Same-day report issue is available where construction programmes require it.

Many London commercial buildings built between 1980 and 2010 use flat plate post-tensioned slab construction. Identifying tendon positions before any coring is a structural safety requirement, not a precaution. NDTScan brings GSSI SIR and Mala GPR systems with the processing experience to produce accurate annotated drawings from complex PT slab configurations across the full range of London commercial construction.

The London residential market generates substantial demand for pre-drill scanning from basement construction and residential extension projects. From Kensington to Islington and across the outer boroughs, NDTScan provides rapid-response targeted scanning with engineering-standard reports.

Services Available in London

  • GPR Concrete Scanning Pre-drill surveys, post-tensioned slab mapping, RAAC surveys, void detection, and structural investigations across all London postcodes. Next-day and same-day attendance available.
  • Ultrasonic Testing of Concrete UPV for structural quality assessment, pulse echo for delamination detection and thickness measurement, and SONREB compressive strength estimation.
  • Concrete Compressive Strength Assessment Independent compressive strength assessment for London structures. Rebound hammer, SONREB, and managed core extraction programmes referenced to BS EN 13791.

London Project Types

NDTScan works across commercial office and retail fit-out, residential and mixed-use development, public sector buildings (schools, hospitals, council buildings), infrastructure (bridges, tunnels, highways), and industrial and logistics. London generates the full breadth of concrete scanning and NDT requirements across all sectors and construction types.

About NDTScan

NDTScan is a specialist non-destructive testing company based in Oxford, operating nationwide and internationally. GPR concrete scanning, ultrasonic testing, and compressive strength assessment are our core disciplines. All work is conducted by qualified practitioners. Reports are produced to engineering-acceptance standard and are referenced to the applicable British Standards.

London NDT Services

  • GPR Pre-Drill Surveys Rebar mapping, PT cable detection, and service location across London commercial, residential, and public sector buildings.
  • Post-Tensioned Slab Investigation PT cable mapping and slab documentation in City of London, Canary Wharf, and central London refurbishment projects.
  • RAAC Identification Surveys GPR-based RAAC surveys for London borough councils and housing associations to IStructE and DLUHC standards.
  • Ultrasonic Testing UPV surveys using Proceq Pundit PL-200 to BS EN 12504. Delamination detection and compressive strength estimation for London structural projects.
  • Compressive Strength Assessment Rebound hammer, SONREB, and managed core extraction to BS EN 13791. Fixed-price reports for building control and engineering acceptance.
  • London Coverage Regular attendance across all London boroughs. Out-of-hours surveys available for occupied commercial buildings. Rapid mobilisation from Oxford.
Sales Support?

02080
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Technical Support?

info@ ndtscan.com

Yes. We carry out concrete scanning and structural NDT across all London boroughs. From pre-drill surveys in City of London commercial buildings to RAAC surveys in south London social housing, London is one of our highest-demand locations.
Yes. We carry out out-of-hours GPR and NDT surveys in occupied commercial buildings across London. Evening and weekend attendance is available for City of London, Canary Wharf, and central London office refurbishments.
Commercial office refurbishments with PT slab investigations, basement construction pre-drill surveys, RAAC assessments for London borough councils, compressive strength testing for building control, and structural investigations for residential conversions.
Yes. We carry out RAAC plank identification surveys for London borough councils and housing associations. GPR is used to identify RAAC in schools, housing blocks, and public buildings in accordance with IStructE guidance and DLUHC requirements.
We can typically attend London sites within 24 to 48 hours. For urgent pre-drill requirements in the City of London or central London, same-day attendance is often possible. Contact us to discuss your project timescales.
Need reliable NDT support? NDTScan delivers advanced non-destructive testing and structural diagnostics across the UK. Explore our full capabilities below:

Our Services

Sectors We Support

Equipment & Technologies

Our NDT Process - Simplified

How NDTScan Delivers Clarity, Confidence, and Compliance

Initial Scope Consultation

We start by understanding your asset, its environment, and your inspection goals. Whether it's structural integrity, corrosion mapping or defect detection, our team tailors a solution that fits.

Advanced NDT Scanning

Using industry-leading equipment — including Trimble, Leica, DJI drones, and GPR systems — we perform detailed non-intrusive testing with minimal disruption.

Data Reporting & Analysis

You receive comprehensive, plain-English reports backed by high-resolution imagery, 3D models, and annotated scan maps. Data is delivered fast, often within the same week.

Recommendations & Support

Beyond inspection, we guide your next steps — from remedial works to structural interventions or re-inspections. We’re partners, not just service providers.

Precision Scanning. Proven Results. Trusted Nationwide.

Our performance protects your assets. Our technology leads the way. Our insight helps you decide.

We deliver specialist non-destructive testing (NDT) that helps you avoid risk, cut cost, and gain absolute clarity — across infrastructure, utilities, construction, marine and more.

Discover our process
Why Choose NDTScan

Changing the way industries think about inspection and assurance.

Proven, Compliant Technology

Our scanning systems are smart, secure, and fully compliant with UKAS, ISO 9712, and sector safety protocols. We bring the right tech to every job — no compromise.

Highly Skilled Team

Every NDTScan technician is certified, trained, and experienced in real-world environments — from rail tunnels to marine piles. You're in expert hands.

Certified, Auditable Results

We deliver UKAS-traceable reporting and standards-led inspection workflows — ideal for clients under CDM, Utilities, and Infrastructure compliance frameworks.

Support When You Need It

From urgent site visits to post-scan guidance, our team is on hand to support you — because clarity shouldn't wait until Monday.

London Concrete Scanning FAQs

Frequently Asked Questions.

Common questions about GPR concrete scanning, ultrasonic testing, and compressive strength assessment across Greater London. NDTScan attends London sites regularly and can mobilise rapidly for urgent requirements.
Yes. We carry out concrete scanning and structural NDT across all London boroughs. From pre-drill surveys in City of London commercial buildings to RAAC surveys in south London social housing, London is one of our highest-demand locations.
Yes. We carry out out-of-hours GPR and NDT surveys in occupied commercial buildings across London. Evening and weekend attendance is available for City of London, Canary Wharf, and central London office refurbishments.
Commercial office refurbishments with PT slab investigations, basement construction pre-drill surveys, RAAC assessments for London borough councils, compressive strength testing for building control, and structural investigations for residential conversions.
Yes. We carry out RAAC plank identification surveys for London borough councils and housing associations. GPR is used to identify RAAC in schools, housing blocks, and public buildings in accordance with IStructE guidance and DLUHC requirements.
We can typically attend London sites within 24 to 48 hours. For urgent pre-drill requirements in the City of London or central London, same-day attendance is often possible. Contact us to discuss your project timescales.