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

Concrete Scanning Denham | Local Specialist | NDTScan

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

Overview

For concrete scanning in Denham, NDTScan offers something most scanning contractors do not: a named specialist who does the site work and the interpretation. Neil Smuts leads every Buckinghamshire survey from NDTScan's Oxford base, and the report you receive is his reading of the data, not a set of marks left on a slab.

Denham has its own character for this work: beside the M25 and M40 interchange, with Denham film studios history, the Buckinghamshire Golf Club and HS2 viaduct works across the Colne Valley. 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.

The on-site capture is only the first step. NDTScan's value is in the post-processing: analysing reflections, cross-checking traces against each other, resolving ambiguous returns and producing a fully interpreted result. In Denham, as everywhere else, the data is worked up in the office before a single conclusion is drawn, and the report says plainly what was found, what was not found and how confident the reading is.

NDTScan will always say this to a Denham client considering repairs: scan first. A repair specified without a proper survey and an expert interpretation is a repair to a guess. The survey establishes what is really there, so the engineer can design for the structure that exists rather than the one on the drawings.

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

Services Available in Denham

  • 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 Denham 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 Denham structures.

Typical Denham Projects

Around Denham the instructions NDTScan receives are shaped by highway structures and the logistics sheds that cluster around the junctions, commercial and laboratory floors where post-tensioned slabs are common and former industrial and institutional buildings being brought back into use. Alongside those sit the constants of every Buckinghamshire town: pre-drill and pre-coring scans on occupied buildings, post-tensioned slab investigation before any fixing or penetration, RAAC identification in schools and public buildings, and structural investigation before repair.

NDTScan also covers Gerrards Cross, Iver Heath and Uxbridge 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. Denham 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.

Denham NDT Services

02080
888 724

info@ ndtscan.com

Yes. Denham is in Buckinghamshire, which NDTScan covers from its Oxford base along with Buckinghamshire, Berkshire and Oxfordshire. Neil Smuts carries out and interprets the survey personally, so the person on site in Denham is the person who writes the 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 Denham 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.
With ground penetrating radar. RAAC planks return a distinctly different signature from conventional reinforced concrete, and NDTScan reads that signature element by element rather than sampling a corner and assuming the rest. The findings for a Denham building are reported in line with IStructE guidance, so the owner has a record that supports the decisions that follow.
Because the drawings are not the structure. Post-tensioned tendons, live services and undocumented reinforcement are all commonly found where nobody expected them, and striking any of them is expensive at best. On repairs the argument is stronger still: a repair specified without a proper survey and interpretation is a repair to a guess. NDTScan's rule for Denham and everywhere else is scan first, interpret properly, then design.
The interpreted result, not raw traces. Scaled plans of the reinforcement, tendons, services and voids located, slab thickness and cover where measured, clear statements of what was and was not found, and the confidence attached to each finding. NDTScan works the Denham data up in the office before a single conclusion is drawn, and the report says so plainly.

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.

Denham Concrete Scanning FAQs

Frequently Asked Questions.

Common questions about GPR concrete scanning, ultrasonic testing and compressive strength assessment in Denham and across Buckinghamshire. NDTScan works from its Oxford base with fully interpreted reporting.
Yes. Denham is in Buckinghamshire, which NDTScan covers from its Oxford base along with Buckinghamshire, Berkshire and Oxfordshire. Neil Smuts carries out and interprets the survey personally, so the person on site in Denham is the person who writes the 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 Denham 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.
With ground penetrating radar. RAAC planks return a distinctly different signature from conventional reinforced concrete, and NDTScan reads that signature element by element rather than sampling a corner and assuming the rest. The findings for a Denham building are reported in line with IStructE guidance, so the owner has a record that supports the decisions that follow.
Because the drawings are not the structure. Post-tensioned tendons, live services and undocumented reinforcement are all commonly found where nobody expected them, and striking any of them is expensive at best. On repairs the argument is stronger still: a repair specified without a proper survey and interpretation is a repair to a guess. NDTScan's rule for Denham and everywhere else is scan first, interpret properly, then design.
The interpreted result, not raw traces. Scaled plans of the reinforcement, tendons, services and voids located, slab thickness and cover where measured, clear statements of what was and was not found, and the confidence attached to each finding. NDTScan works the Denham data up in the office before a single conclusion is drawn, and the report says so plainly.