A useful cladding survey brief connects the proposed replacement system with the existing geometry the team needs to measure. Define the critical interfaces, capture stages and deliverables before comparing quotations.
Start with the façade consultant, designer and contractor’s requirements. Is the survey for early design, measured elevations, quantity review, bracket coordination or checking installation interfaces? Those uses require different coverage and detail.
Keep one commercial survey scope with clearly defined stages. An initial external scan can record visible panel joints and openings, but may not capture the structure behind the cladding. A follow-up after removal can measure exposed slab edges or fixing zones where access permits.
Geo Scan’s façade and cladding surveys provide measured existing-condition information for recladding and remediation. This guide helps you brief that service; fire-risk assessment and remediation design remain specialist appointments.
Provide a marked elevation or site plan showing every face, return, recess and roof-level interface needed. Include balconies, podium connections, adjoining structures and window reveals where relevant. State whether the survey is external only or also needs internal reference points.
Confirm whether individual panel edges and joints need to be drawn, or whether the intended output is a general façade elevation. Specify openings, levels, reference grids and critical details. Drawing scale describes presentation; it does not replace an accuracy specification.
Flag the features that will affect manufacture or installation. Ask the design team to provide their required tolerances and references. The survey method and checking plan can then be matched to those requirements.
Review what can actually be seen from ground level and any available high-level positions. Recessed faces, balcony undersides, parapets and surfaces behind screens may need additional viewpoints. Vehicles, vegetation and scaffolding can obscure useful detail.
Agree responsibility for access permissions, resident notices, temporary works and suitable access equipment. A scanner’s range alone does not establish useful resolution or a suitable measurement on a particular surface.
For staged remediation, record what is needed before removal, after opening-up and after installation. Confirm the programme for each visit and whether a stable control reference can be retained between stages. Ask for excluded and inaccessible areas to be identified in the issue record.
The most useful package often combines a reusable measured dataset with selected interpreted outputs. Agree the receiving software and the detail needed in each deliverable.
Measured elevations: selected panel detail, openings and features in DWG and PDF, to an agreed drawing specification. Point clouds: registered data in an agreed format, with units, coordinates, segmentation and density stated. Orthographic images: defined views of visible captured surfaces, with scale, orientation and coverage understood. Sections and interface details: selected relationships at slab edges, returns or openings where captured and included. Models: only where a structured 3D interpretation is required, with elements and detail explicitly scoped.
An image is not a finished CAD elevation. A point cloud is not an automatically verified model. Read the survey deliverables guide to select the appropriate combination.
Set out the coordinate system, local datum, reference grid and how the survey relates to the project’s design information. If phased capture or dimensional comparisons are required, agree how the reference will be preserved and checked.
Ask how registration, coverage and the issued outputs will be checked. A low average registration residual can coexist with a weaker connection elsewhere in the network; critical façade interfaces need appropriate inspection.
The Huller and Cheese case study demonstrates why Geo Scan refined alignment before preparing cladding replacement elevations. It distinguishes internal registration agreement from absolute accuracy. For the specification principles, read measured survey accuracy.
A measured survey records geometry. It cannot identify concealed insulation or prove cavity-barrier performance through an intact façade. Specialist investigation, material identification and fire-risk conclusions need their own evidence.
In England, the project team should confirm the applicable building control and building-safety requirements. Survey records may contribute to those workflows, but do not establish that the replacement design is compliant or approved.
Use EWS1, FRAEW and PAS 9980 guidance for the assessment distinction, and building safety and the Golden Thread for the survey contribution to the wider information record.
Before comparing fees, check that each quotation covers the same façades, panel detail, access assumptions, capture stages, accuracy requirements, formats and issued drawings. Check whether processing, interpretation, QA, travel and repeat visits are included.
Agree how newly exposed geometry or changed access will be handled. A lower headline fee may reflect a smaller scope; asking these questions makes the comparison useful.
Send Geo Scan the building address, marked survey extents, existing drawings, consultant’s requirements, access information and required timescales. We can define a practical package for the next project stage, including staged attendance where needed.