Third-party quality assurance and verification
Land Surveying & Dimensional Control Consulting
Comprehensive third-party quality assurance and dimensional verification services for construction and infrastructure projects across the UAE and GCC region.
Construction goes wrong quietly: a few millimetres here, a settled benchmark there, a machine-control model that no one checked. A dimensional control survey by an independent party catches these problems before they become claims. We work as a third-party surveyor alongside contractors, consultants and infrastructure owners, checking setting-out, as-built geometry, machine-control models and long-term movement. Our background includes settlement monitoring on live railway corridors and dimensional control on complex tunnel and treatment-plant projects, and we now bring that experience to projects in the UAE and Saudi Arabia. On large sites, small errors add up quickly. A column set out a few centimetres off, a slab poured to the wrong level or an earthworks model loaded with the wrong surface can lead to rework, delays and disputes. Independent checks at the right moments give owners and consultants confidence that what is being built matches what was designed, and give contractors evidence that their work is right. We plan checks around your programme, so surveys happen before key hold points such as pours, steel erection or handover, not after problems appear. Every result is reported clearly, with plain-language comments on what needs attention.
What we deliver
- Land surveying and dimensional control on active construction sites
- Third-party quality control (QC) of contractors' production models and machine-control systems
- Validation of machine-control loop accuracy and performance on earthmoving and grading equipment
- Quality, safety, and contractual compliance inspections aligned with national and project-specific standards
- Settlement monitoring and long-term deformation tracking on railway and infrastructure projects
- Benchmark establishment and reference network maintenance
- Utility surveying and subsurface utility engineering (SUE)
- Static GNSS surveys and high-precision positioning services
- Expert witness and dispute resolution support based on dimensional and survey evidence
Deliverables & file formats
- 01Dimensional control reports
- 02As-built survey documentation
- 03Compliance verification certificates
- 04Machine control validation reports
- 05Measurement uncertainty assessments
File formats
- Dimensional control and deviation reports (PDF)
- As-built survey drawings: DWG/DXF
- Monitoring data and trend graphs: CSV/XLSX and PDF
- Survey control and benchmark schedules
- Point clouds where laser scanning is used: E57, LAS/LAZ, RCP
Ready to discuss your project?
Get in TouchEquipment & accuracy
- Capture is carried out with survey-grade terrestrial laser scanners, mobile/drone LiDAR and GNSS equipment through our vetted partner network; processing uses industry-standard point cloud and CAD/BIM software alongside our AI workflows.
- Accuracy is specified per project to suit the deliverable and confirmed in our proposal.
- Where local licensing is required, fieldwork is delivered with licensed local survey partners.
- Turnaround is agreed upfront and depends on project size; we respond to enquiries within one business day.
Typical projects
- Independent settlement monitoring and dimensional control on busy railway corridors during nearby construction. Case study: Railway settlement monitoring →
- Setting-out, laser scanning and QC for a wastewater tunnel and treatment plant. Case study: Tunnel dimensional control →
- Third-party checks of contractors' machine-control models on earthworks and grading.
Who it's for
- Consultants and project managers who need independent verification
- Infrastructure owners and operators monitoring assets during construction
- Contractors who want an extra QC layer before handover
- Legal teams needing survey evidence in disputes
How it works
- 01Review. We review drawings, tolerances, the specification and existing survey control.
- 02Control network. Benchmarks and control points are checked or established.
- 03Measurement. Dimensional control, monitoring rounds or machine-control checks on site.
- 04Analysis. Results compared with design and tolerances, with trends tracked over time.
- 05Reporting. Clear reports that show what is in tolerance, what is not and what to do next.
Frequently asked questions
What is a dimensional control survey?
It is a survey that checks whether built elements are in the right position and within the specified tolerances, compared with the design.
Why use an independent surveyor?
An independent party has no stake in the result, so owners and consultants get an objective view of quality and compliance.
Do you offer settlement monitoring?
Yes. We plan and carry out monitoring rounds and report movement trends, with warning levels agreed at the start.
Can you check our machine-control models?
Yes. We verify that the models loaded in grading and earthmoving machines match the design, and that the system is performing as expected on site.
Where do you work?
We are based in Dubai and support projects across the UAE and Saudi Arabia, including Riyadh, Jeddah and the Eastern Province.
Discuss your project
Working in the UAE or Saudi Arabia? Send us your drawings or scope and we'll reply with an approach and quote.
Get in Touch