Subterranean
Sewer inspection

We fly where crawlers stop.

Drone and crawler sewer surveys with no confined-space entry.
Every survey returns video and a LiDAR scan, so each frame
sits on the sewer's true path.

Scope a survey Watch a deployment
Drone or crawler

The right platform for the asset.

We run both, and choose on the asset's diameter, condition and flow,
not on what's in the van.

Drone flying inside a large sewer or culvert
Drone

Past the obstacle

Flies over silt, debris, standing flow and collapses that stop a crawler. For large-diameter sewers, culverts, storm tanks and shafts. [diameter range – confirm]

Crawler deployed in a smaller pipe
Crawler

Smaller pipes, routine runs

Where the pipe is clear and too small to fly, a crawler records the same video and scan. [diameter range – confirm]

A survey, start to finish.

Deployment film · 60–90 s
Deployment film (60–90 s): arrival, launch, flight, footage in Halo
What you receive

Survey video, with its context.

Three views of the same asset, from one survey. Delivered in Halo, and exportable to the tools you already use.

Coded survey video frame showing a defect
01 · Video

Survey video

Continuous footage, coded to [coding standard – confirm] and reviewable frame by frame.

High-resolution defect still
02 · Stills

Defect photography

High-resolution, location-tagged stills of every observation.

The asset in the Halo LiDAR model, with a 3.30 m diameter measurement
03 · 3D

LiDAR model

The asset in 3D, with the footage placed on its true path. Measure it from your desk.

On the day

No confined-space entry

The drone or crawler goes in. Your team stays at the surface.

Data from assets others abandon

Reliable data from degraded, obstructed and hard-to-reach lengths.

Measurements you can take yourself

Measure deformation, voids and collapses to prioritise repairs.

Over time

A baseline to compare against

The first survey sets a precise baseline for every one after it.

Deterioration becomes visible

Change between visits is read from data, not inferred from notes.

A record that outlasts the contract

Review the asset again later without returning to site.

Proven underground

Surveyed across Ireland & the UK.

Live sewers, culverts, storm tanks and shafts, for utilities and asset owners on both sides of the Irish Sea.

4.5
Years of underground operations
467
Drone flights completed
45+
Sites across the UK & Ireland
50+
Kilometres of assets inspected
FAQ

Questions we get asked.

Does anyone need to enter the sewer?+

No. The drone or crawler goes in; the team stays at the surface.

When do you use a drone instead of a crawler?+

Where silt, debris, standing flow or a collapse would stop a crawler, a drone flies past it. Crawlers suit smaller pipes and routine runs.

What do we receive?+

Survey video, location-tagged photography and a LiDAR model of the asset, delivered in Halo and exportable to your own tools.

What do you need from us to quote?+

Diameter, length and access constraints are enough for us to tell you what we can capture.

In their words
“[Approved quote from Iain – fewer road closures]”
Scottish Water
Iain Jones · Scottish Water · [role]
Talk to us

Send us the asset you can't get a team into.

Tell us the diameter, length and access, and
we'll tell you what we can capture.

Scope a survey See the survey data