Longwick's specialist NDT team. On site the same day.

Concrete Scanning Longwick | Local Specialist | NDTScan

GPR concrete scanning, ultrasonic testing and compressive strength assessment across Longwick, Buckinghamshire and the surrounding counties. Same-day attendance from our Oxford base.
Central Milton Keynes from the air, Buckinghamshire

Overview

NDTScan provides concrete scanning in Longwick as part of its core Buckinghamshire coverage. The company is based in Oxford and led by Neil Smuts, who carries out and interprets the surveys himself rather than passing the data to a back office. For Longwick clients that means one accountable specialist from the first call to the final report.

Longwick lies in Buckinghamshire, and what NDTScan is asked to look at here reflects Buckinghamshire as a whole: Chiltern market towns, post-war new town estates and a large stock of mid-century schools, hospitals and council housing. Wherever the work sits in Buckinghamshire, the question NDTScan is answering is what the concrete actually contains, and how much of it can be trusted.

What separates a dependable concrete scan from a superficial one is the interpretation. NDTScan concentrates most of its effort after the site visit: reviewing every radargram, correlating GPR with Ferroscan and ultrasonic data where the element demands it, and writing a report that an engineer can act on. Longwick clients receive that standard of work as a matter of course.

One caveat applies to every Longwick project. No structural repair to a concrete element should be specified or carried out until the structure has been properly scanned and the data expertly interpreted. Repairing what has not been correctly understood risks repeating the fault, and the scan is the cheapest part of getting it right.

Scan before you repair. That is the standing advice for every Longwick client, and the reason NDTScan reports what the concrete contains before anyone specifies what to do about it.

Services Available in Longwick

  • GPR Concrete Scanning Pre-drill and pre-coring surveys, rebar and mesh mapping, post-tensioned tendon detection, void and honeycombing detection, slab thickness and cover measurement and RAAC identification. Method and antenna selected for the Longwick element in question, with the full interpreted record supplied.
  • Ultrasonic Testing of Concrete Ultrasonic pulse velocity testing for uniformity and quality assessment, pulse echo for thickness and delamination where only one face is accessible, and the combined SONREB method for compressive strength estimation. Used across Buckinghamshire where GPR alone cannot answer the question.
  • Concrete Compressive Strength Assessment Rebound hammer surveys, UPV combined method and managed core extraction with laboratory testing to BS EN 13791. Independent reporting suitable for engineering acceptance, building control and dispute work on Longwick structures.

Typical Longwick Projects

In and around Longwick, NDTScan is most often asked for pre-drill and pre-coring surveys, post-tension detection in suspended slabs, RAAC identification in education and community buildings, rebar and cover mapping to support engineering assessments, and interpreted investigation of existing concrete before any repair is designed.

NDTScan also covers Princes Risborough, Thame and Great Kimble and the rest of Buckinghamshire. Every one of these areas is reached from the Oxford base without a subcontractor in the chain.

About NDTScan

NDTScan is a specialist non-destructive testing company based in Oxford and led by Neil Smuts. Its core disciplines are GPR concrete scanning, ultrasonic testing and in-situ compressive strength assessment, brought together in its concrete scanning and structural condition survey service. NDTScan is a Level 4 UKCSS Operator, the first in the UK to achieve that certification. Longwick and the whole of Buckinghamshire are within the company's everyday working area, and all work is reported to a standard suitable for engineering acceptance.

Longwick NDT Services

02080
888 724

info@ ndtscan.com

Yes. GPR concrete scanning is NDTScan's core service and Longwick, Buckinghamshire is inside its everyday working area. Neil Smuts plans the survey, captures the data on site and interprets it himself, so there is one accountable specialist from instruction to report.
What is inside the concrete and how far you can trust it. A survey maps reinforcement, post-tensioned tendons, embedded services and voids, and measures slab thickness and cover. For a Longwick building that is the difference between drilling safely and striking a tendon, and between a repair designed for the real structure and one designed for the drawings.
Yes. NDTScan uses GPR to distinguish reinforced autoclaved aerated concrete planks from conventional reinforced concrete, and reports the findings in a form that supports the building owner's duties under IStructE guidance. RAAC identification is a regular instruction across Buckinghamshire schools, halls, housing and healthcare stock, and Longwick is no exception.
Yes. A repair specified without a proper scan and an expert interpretation is a repair to a guess, and it risks repeating the fault that caused the damage. The survey establishes what the Longwick element actually contains and how it is behaving, so the engineer designs for the structure that exists. The scan is the cheapest part of getting the repair right.
A fully interpreted report, not a photograph of marks on a slab. The data is post-processed in the office, cross-checked and written up with clear statements of what was found, what was not found and the confidence attached to each. It is written for the engineer or contractor who has to act on it in Longwick, and it stands up to design, dispute and audit scrutiny.

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.

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.

Longwick Concrete Scanning FAQs

Frequently Asked Questions.

The questions Longwick clients ask most often about concrete scanning, RAAC identification and structural investigation, answered by the specialist who does the work.
Yes. GPR concrete scanning is NDTScan's core service and Longwick, Buckinghamshire is inside its everyday working area. Neil Smuts plans the survey, captures the data on site and interprets it himself, so there is one accountable specialist from instruction to report.
What is inside the concrete and how far you can trust it. A survey maps reinforcement, post-tensioned tendons, embedded services and voids, and measures slab thickness and cover. For a Longwick building that is the difference between drilling safely and striking a tendon, and between a repair designed for the real structure and one designed for the drawings.
Yes. NDTScan uses GPR to distinguish reinforced autoclaved aerated concrete planks from conventional reinforced concrete, and reports the findings in a form that supports the building owner's duties under IStructE guidance. RAAC identification is a regular instruction across Buckinghamshire schools, halls, housing and healthcare stock, and Longwick is no exception.
Yes. A repair specified without a proper scan and an expert interpretation is a repair to a guess, and it risks repeating the fault that caused the damage. The survey establishes what the Longwick element actually contains and how it is behaving, so the engineer designs for the structure that exists. The scan is the cheapest part of getting the repair right.
A fully interpreted report, not a photograph of marks on a slab. The data is post-processed in the office, cross-checked and written up with clear statements of what was found, what was not found and the confidence attached to each. It is written for the engineer or contractor who has to act on it in Longwick, and it stands up to design, dispute and audit scrutiny.