GPR Scanning
Non-destructive investigation of reinforced concrete before drilling, coring and structural alterations.
Rebar Detection
Identify reinforcement position, direction, approximate spacing and indicative depth within surveyed areas.
On-Site Mark-Up
Detected reinforcement and relevant survey responses can be marked directly onto accessible concrete surfaces.
Technical Reporting
Annotated photographs, processed GPR information, survey reports and CAD deliverables available where required.
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Planning drilling, coring, cutting or structural fixings into reinforced concrete? Magnitude Geo provides professional concrete scanning and rebar detection throughout London, the Home Counties and South East England.
Our surveys can investigate reinforcement within concrete slabs, walls, beams, columns and soffits before intrusive works commence.
Whether you require scanning before core drilling, diamond drilling, service penetrations, resin anchors or structural alterations, we can develop a survey approach appropriate to the proposed works.
Send us your structural drawings, photographs and marked-up drilling or survey locations where available. Our team can review the information and provide a free, no-obligation quotation.
Why Scan Concrete Before Drilling?
Existing reinforced concrete can contain multiple reinforcement layers, conduits and other embedded features that cannot be identified reliably from the visible surface alone.
Targeted concrete scanning allows the proposed work area to be investigated before intrusive works commence. Survey findings can then be reviewed by the contractor, structural engineer or project team when considering drilling and fixing locations.
Targeted scanning around proposed core locations.
Reinforcement investigation before penetrations are formed.
Investigation of reinforcement across proposed fixing zones.
Concrete investigation before cutting and new openings.
GPR Concrete Scanning Before Drilling
Ground Penetrating Radar is a non-destructive investigation method used to collect information from within reinforced concrete. Radar signals are transmitted into the structure and reflected responses are recorded for interpretation.
Depending on the concrete construction, survey conditions and required investigation depth, GPR can provide information regarding reinforcement position, direction, approximate spacing and indicative depth.
The technique can be particularly useful where information is required beyond the first reinforcement layer or where a larger area of concrete needs to be systematically investigated.
Learn more about our GPR Survey London service.
Rebar Detection Before Drilling
Reinforcing steel is one of the principal features investigated during pre-drilling concrete surveys.
Where reinforcement responses can be clearly identified, their positions can be marked onto the accessible concrete surface. This provides the drilling or construction team with a practical visual reference to the detected reinforcement arrangement.
More detailed surveys can investigate reinforcement direction, approximate spacing and indicative depth across selected areas.
Visit our Rebar Detection London service.
Concrete Scanning Before Core & Diamond Drilling
Core and diamond drilling can create penetrations through a significant proportion of an existing reinforced concrete element.
Magnitude Geo can undertake targeted scanning around proposed core positions before drilling begins. Surveys can cover individual penetrations or larger areas containing multiple proposed drilling locations.
Where required, detected reinforcement can be marked onto the concrete surface so that survey findings can be reviewed against proposed core positions before intrusive work commences.
- Single core drilling locations
- Multiple service penetrations
- Diamond drilling zones
- Mechanical penetrations
- New service routes
- Structural openings
Scanning Before Resin Anchors & Structural Fixings
Concrete scanning can support the installation of resin anchors, mechanical anchors, structural brackets, steelwork connections and other fixings into existing reinforced concrete.
Where several anchors or fixings are proposed, a wider survey can help establish the reinforcement arrangement across the fixing zone rather than investigating individual positions in isolation.
Targeted reinforcement scanning can also support refurbishment and structural alteration projects where original structural drawings are unavailable or additional verification of the existing construction is required.
Concrete Floors, Slabs, Walls, Beams & Soffits
Magnitude Geo can undertake GPR and reinforcement scanning across a range of accessible reinforced concrete elements before drilling, cutting and structural alterations.
Concrete Slabs
Reinforcement investigation before floor penetrations, openings, drilling and structural modifications.
Concrete Walls
Targeted scanning before drilling, service penetrations, fixings and new openings.
Beams & Columns
Localised reinforcement investigations around proposed structural connections and fixings.
Concrete Soffits
Scanning from the underside where access to the upper surface of a concrete slab is restricted.
For slab-specific investigations, visit our Concrete Slab Scanning London page.
Concrete Soffit & Underside Slab Scanning
Where the upper surface of a concrete slab cannot be accessed, GPR scanning may be undertaken from the underside of the structure.
This approach can be particularly useful within basements, commercial buildings, car parks and refurbishment projects where the upper floor surface is occupied, covered or otherwise inaccessible.
When scanning from the underside, interpreted depth information is referenced from the soffit surface being scanned.
Survey grids can also be marked onto the accessible ceiling surface to provide a physical reference for detected reinforcement and future measurements.
Concrete Scanning Survey Deliverables
Survey outputs can be tailored to the requirements of each project. Small targeted surveys may require physical site mark-ups, while larger structural investigations can require processed survey information and formal reporting.
Who Uses Our Concrete Scanning Services?
Structural Engineers
Reinforcement information for structural assessments, alterations, connections and proposed openings.
Diamond Drilling Contractors
Targeted surveys around proposed core drilling and penetration locations.
Main Contractors
Concrete scanning during refurbishment, construction and structural alteration projects.
Developers
Investigation of existing structures where original reinforcement information is unavailable.
Concrete Scanning Before Drilling Across London
Magnitude Geo provides concrete scanning before drilling throughout Central London, North London, South London, East London and West London.
We support projects across commercial buildings, residential developments, basements, offices, retail premises, industrial properties and existing reinforced concrete structures throughout Greater London.
Our concrete scanning coverage also extends across Surrey, Kent, Essex, Hertfordshire, Buckinghamshire, Berkshire and the wider South East.
Concrete Scanning Before Drilling FAQs
Can you scan concrete before drilling?
Yes. Targeted concrete scanning can be undertaken around proposed drilling, fixing and penetration locations before intrusive works begin.
Can you locate rebar before drilling?
Yes. Specialist concrete scanning equipment can be used to investigate reinforcing steel within accessible reinforced concrete.
Can you scan before core drilling?
Yes. GPR and reinforcement scanning can be undertaken around proposed core and diamond drilling locations.
Can concrete walls be scanned?
Yes. Accessible reinforced concrete walls can be investigated before drilling, fixings, service penetrations and structural alterations.
Can you scan the underside of a slab?
Yes. Where suitable access is available, scanning can be undertaken from the soffit or underside of a reinforced concrete slab.
Can reinforcement be marked on site?
Yes. Where appropriate, detected reinforcement and relevant survey responses can be marked directly onto the accessible concrete surface.
Can you provide a survey report?
Yes. Depending on project requirements, Magnitude Geo can provide annotated photographs, processed GPR outputs, reinforcement information and technical reports.
Related Concrete Scanning Services
Explore our specialist concrete scanning and reinforcement investigation services across London and the South East.
GPR and concrete investigation services. GPR Survey London
Specialist Ground Penetrating Radar surveys. Rebar Detection London
Locate reinforcement within concrete. Reinforcement Surveys
Detailed reinforcement investigations. Concrete Slab Scanning
GPR investigation of reinforced concrete slabs. Ferroscan Surveys
Reinforcement detection and mapping.
