About Mainline Surveys
Topographical, measured building, utility and drone surveys for architects, developers and property owners. We focus on clear scope, reliable programmes and deliverables that drop into design and planning workflows.
Surveying and site investigation for commercial construction.
Who we are
Mainline Surveys connects clients with qualified survey capability for land, buildings and utilities — from pre-planning topographical work through to measured surveys, utility mapping and aerial capture where it adds value.
Mainline Surveys and Mainline Groundworks operate as the group's primary delivery businesses — surveying and site investigation alongside commercial groundworks for developers, principal contractors and commercial projects.
What we do
Our survey services support planning, design and construction. Examples include:
- Topographical Survey
- Measured Building Survey
- Utility Survey
- Utility Mapping Survey
- Boundary Survey
- Laser Scanning Survey
How we work
- Scope and quote. We align on site constraints, outputs (CAD, PDF, point cloud, etc.) and programme before work starts.
- Survey and capture. Field teams use GNSS, total stations, laser scanning and drones as appropriate, with quality checks on control and coverage.
- Processing and issue. Data is processed, checked and issued in agreed formats with a concise report where required.
Where we operate
We work across London, the South East and the wider UK. Use our location pages for local context; contact us to confirm availability for your site.
Mainline delivery businesses
Mainline Groundworks and Mainline Surveys operate as the group's primary delivery businesses — combining site delivery with surveying and site investigation for developers, principal contractors and commercial projects.
You are on the Mainline Surveys site.
What guides us
Reliability
Clear turnaround and deliverables
Honesty
Transparent pricing, no hidden costs
Expertise
Qualified survey partners
Quality
Planning-ready CAD and BIM outputs