A 3D laser scan survey is often the first step in any successful as-built project. It gives you a highly accurate digital record of your site – essential for design, documentation, planning, or modification work. At Offset Services, we don’t believe in a one-size-fits-all approach. We tailor every scan to suit your site, your needs, and your goals.

Understanding Your Site & Goals

Before we begin scanning, we take time to understand exactly what you need. This includes:

• Site-specific details – Are there special conditions, hazards, or access requirements?
• Size & complexity – How large is the area? Are there tight spaces or congested zones?
• Access & safety – How do we get on-site safely and efficiently?
• Project objectives – What will you use the scan for? (e.g. modelling, documentation, planning, BIM)

We’ll walk you through everything that may affect the cost and timeline, ensuring there are no surprises along the way.

Getting Ready for the Survey

Once you’re happy to go ahead, we’ll get everything set up. This includes:

• Risk assessments
• Method statements
• Health & safety planning

We handle all the behind-the-scenes prep to ensure a smooth and safe operation on your site.

What Happens On Site

When our engineers arrive, they’ll:

• Complete site inductions
• Review the areas to be scanned
• Discuss any potential issues that might affect the process

For more complex sites, we may set up a survey control network using traditional instruments (like total station) to ensure all data is accurately aligned.

Choosing the Right Tools

Not every scanner suits every site – that’s why we bring the right equipment for the job:

• Hand-held scanners – Great for tight or intricate spaces
• Tripod-mounted scanners – Ideal for larger or more open areas

Our team will always choose the best-fit tech to get you the most accurate results.

Setting Up the Equipment

We carefully place and secure our scanners to make sure they’re steady during operation. For larger sites, we plan multiple scanning positions to capture every angle and avoid blind spots. We may also set up control points – either pre-existing or created on-site – to help align the scans later and improve overall accuracy.

Capturing the Data

A successful scan means getting the details right. We consider:

• Line of sight – The scanner needs a clear view, so we move it around to cover all areas
• Coverage – Multiple angles ensure a complete model with no gaps
• Scan resolution – High-res for fine detail; lower res for speed
• Colour data (optional) – Useful for architectural and heritage projects for added context

Real-Time Monitoring

We don’t just hit “scan” and hope for the best. Our team monitors every scan live using tablets or laptops. This means if we miss a spot or something interferes (like reflections or movement), we can fix it immediately—no guesswork, no return visits.