Duct & Air Hygiene
We send the robot where people can’t go.
Risers, small-bore ducts and runs above occupied ceilings are often impossible to clean by hand without cutting openings. Our purpose-built duct robot — with a 3D-printed body, onboard camera and compressed-air nozzle — enters through existing access points, cleans as it travels and records every metre for your file. For vertical risers we pair it with drill-driven rotary brushes on extension rods. Fewer openings, less disruption, full evidence.

Minimal disruption
Works through existing diffusers, louvres and access panels — no new openings in finished ceilings.
Reaches the unreachable
The robot drives long horizontal runs and plenums, or is lowered into shafts from above. Vertical risers are brushed from below on extension rods.
Every metre on video
Onboard camera footage gives you proof of condition before and after cleaning.
Scope
What’s included
- Exhaust and supply risers — rotary brush on extension rods, or robot lowered from a top access
- Long horizontal trunk ducts
- HEPA housing and plenum interiors
- Compressed-air agitation with HEPA vacuum extraction
- Anti-microbial treatment drawn through the riser by the running exhaust fan
- Recorded camera inspection of the full run
You receive
Deliverables
- Riser camera footage
- Condition notes per riser
- Before / after stills
- Access & defect report
Typical sectors
How we work
Our process
- 01
Isolate & open
Units are switched off, filters removed and the existing access point opened.
- 02
Deploy the robot
The robot drives along horizontal runs, or is lowered down a shaft on a tether, while its camera records the path.
- 03
Blow & extract
Compressed air dislodges deposits; the HEPA vacuum captures them at the opening.
- 04
Treat
With the exhaust running, anti-microbial duct treatment is sprayed so it is drawn up and coats the riser.
- 05
Seal & restart
Housings are dried and re-sealed; the system is restarted and checked.
Riser cleaning sequence
01 / 10Supply-side sequence
01 / 10Related services
All services
Air-Conditioning Services
Installation, preventive maintenance and breakdown repair for split, VRF, packaged, FCU, AHU and chiller systems.

Duct Cleaning & Sanitisation
Source-removal cleaning of supply, return and exhaust ductwork to NADCA ACR practice, with anti-microbial treatment.

CCTV & Visual Inspection
Camera and borescope surveys of ductwork, plenums and units — so you clean, repair or replace only what needs it.
Talk to us about robotic duct cleaning.
Tell us about your building, plant or facility. We’ll come back within one working day with next steps — a site survey, inspection or a clear quotation.
Get in touch