Engineering surveying transfers positions from the agreed digital design to site. Physical marks guide construction against the specified coordinates, dimensions and tolerances.
Setting out can cover gridlines and individual fixing positions. As-built surveys record constructed positions for comparison with the agreed design and applicable tolerances.
A coordinated survey reference helps trades compare positions, identify discrepancies and keep construction records consistent. The required tolerance and checks are agreed for the work being undertaken.
We agree the required tolerance, project grid, design revision and survey checks before setting out. The control network and survey method are planned around the specified work and site conditions.
Independent checks and clear records support comparison against the agreed design and tolerances. Any identified discrepancies or limitations are reported; survey verification is not structural certification or a guarantee of regulatory compliance.
We review design drawings to establish setting out requirements and coordinate systems.
We establish a highly accurate survey control network across the site.
Surveyors mark out required points on site using robotic instruments.
We re-survey constructed elements to check position and provide reports.
The required setting-out tolerance depends on the control, method, site conditions and intended use. We agree the applicable specification and checks before work starts.
We need current CAD/BIM design drawings (DWG/IFC) and the project grid coordinates.
Attendance is agreed against the scope, required dates and site programme. Tell us whether you need continuing site support or individual visits so we can confirm availability.