Confined Space Surveys

What is a Confined Space Survey?

A confined space survey is a specialist survey of a hazardous or hard-to-access environment that can ensure accurate data where traditional methods fall short. They require specialist training and equipment to mitigate potential risks and can be combined with most other types of survey equipment to provide deliverables such as Our teams are City & Guilds 6160-09 qualified for confined space entry and entry control, allowing us to work safely in challenging conditions and deliver reliable results without guesswork.

Data can be captured with terrestrial or drone-mounted LiDAR, total stations, or remote controlled crawlers.

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When do I need a Confined Space Survey?

Confined space surveys are essential for projects involving underground chambers, tanks, culverts, or enclosed drainage systems. Using advanced equipment and strict safety protocols they can provided data on environments that are usually inaccessible using conventional surveying techniques. Situations in which a confined space survey could be required include:

  • Before construction in enclosed areas to identify hazards and confirm dimensions accurately
  • For compliance and safety. Confined spaces pose risks of toxic gases, flooding, and restricted movement – qualified entry teams ensure legal and safe operations.
  • Part of your maintenance cycle. If machinery is situated in a confined space accurate and regular data prevents costly errors and delays.

Deliverables:

  • Measured survey data for enclosed or restricted areas
  • CCTV drainage” inspection reports with linked video footage
  • Digital drawings for integration into your design plans
  • Risk and access documentation for compliance and safety

Our confined space teams can also combine these surveys with “Engineering Surveys”, “Utility Surveys”, and “CCTV Drainage Surveys” for a complete site solution.

Outputs available in:

  • Video
  • AutoCAD
  • Point Cloud
  • PDF
  • Revit
  • Other platforms of the client’s choosing
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Why Choose Interlocks?

  • City & Guilds 6160-09 certified teams for confined space entry
  • Specialist equipment for safe access and high-quality data capture
  • Integrated solutions combining measured surveys and CCTV inspections
  • Proven track record in delivering reliable results for complex environments

Plan safely and eliminate guesswork…

Request a Confined Space Survey before starting work in hazardous or restricted areas.
We’ll provide accurate measurements, reports, and digital plans to keep your project safe and compliant.

I wanted to take a moment to share some very positive feedback regarding Jamie, currently supporting the works at Westbury Viaduct. Since joining the team, Jamie has made a noticeable and genuinely positive difference. His proactivity, strong work ethic, and engaged communication with the client have all stood out. He has integrated quickly and effectively into the team, and his approach has already helped strengthen collaboration on site. I felt it was important to highlight the value he is adding, and to let you know that his contribution is very much appreciated. We look forward to continuing the momentum as we progress with the successful installation of the parapets. Thanks again, and please pass on our appreciation to Jamie.
Jose Segovia
FC Civil Solutions (Ferrovial)
Thank you for this – and I appreciate your quick turnaround from our late request, and many thanks to Alyx for his work on site!
Steven Jewell
MiTek
Thank you for all your and the teams’ efforts in getting such great packages of drawings to us! Really appreciated it.
Caroline Edwards
Acanthus Clews
The survey data we received last night was exactly what we needed. It showed us that the existing access road doesn’t match our construction drawings, which is a significant find for us. Thanks again for managing to rearrange your schedule; it’s really helped us stay on track with our tight deadlines.
​​​​​Tom Gardner
YMD Boon Ltd (Architects)
Your drawings were exemplary and equal to those of another survey firm in quality.
Henry Sanders
Hestia Architects Ltd
Just want to say thank you to the surveying team for the professional and efficient way they carried out the onsite topographical survey at our site.
Steve Blacker
Stansgate Planning
I am more than happy to vouch for the quality and timeliness of Interlocks Surveys work at St Bartholomew’s Hospital and can confirm that their ways of working were appropriately considerate of the nature of St Barts as a Grade I listed heritage asset.”
Ian Haig
Barts Heritage (NHS)
That is excellent thank you. Thank you and the team for your hard work on this. I appreciate it was a whopper of a project to get done given the sheer scale of the site and all the off site highways to considered.
Lauren White
Hallam Land
Swan have been very happy with the service and prices from Interlock.
Tim Major
Swan Environmental
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