Snelgrove Survey Ltd

02 / Service schedule

End-to-end support for contractors

Pre-planning to post-completion. Every service below is flown, processed and checked in-house, and issued in the format your design team already works in.

SVC-01

Photogrammetry survey

High-overlap imagery flown to a planned grid and processed against surveyed ground control. Produces orthomosaics, dense point clouds and terrain models suitable for design and measurement.

  • 8 mm/px GSD
  • RTK + GCP control
  • LAS / TIFF / DWG
SVC-02

LiDAR survey

Active scanning for vegetated, shadowed or complex sites where imagery alone cannot see the ground. Returns are classified so bare-earth terrain is separated from canopy and structures.

  • Multi-return
  • Ground classification
  • LAS 1.4
SVC-03

Volumetric analysis

Cut, fill and stockpile quantities calculated between surfaces or against a design level, issued with the method, base surface and date so quantities stand up in a valuation.

  • Surface-to-surface
  • Design comparison
  • PDF + CSV
SVC-04

Topographic modelling

Full topographic survey delivered as a layered CAD drawing: levels, contours, hard detail, kerb lines, drainage covers and boundaries to your own layer and symbol standard.

  • DTM / DSM
  • Contours at 250 mm
  • AutoCAD DWG
SVC-05

Time-stamped progress capture

Recurring flights on a fixed interval build an evidence trail of works progress — the record contractors rely on for cost applications, delay narratives and client reporting.

  • Weekly / monthly
  • Fixed flight plan
  • Dated ortho set
SVC-06

As-built and infrastructure monitoring

Completed works captured and compared to the issued design, with deviation reporting. Repeat capture tracks movement, settlement and condition across a structure or asset.

  • Design deviation
  • Repeat epochs
  • Change report

Not sure which survey the job needs? Describe the site and the decision the data has to support — we'll specify it.

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