Why grease extraction ducts need specialist cleaning
Extraction ducts in commercial kitchens accumulate combustible grease faster than any other part of the building services. Heavy-use kitchens can deposit several millimetres of grease across a duct run in a quarter — enough to support and propagate a fire from the kitchen all the way to the roof discharge.
Our duct cleaning methodology
- Pre-clean survey, access mapping, baseline deposit readings
- Containment and isolation of cooking equipment
- Mechanical agitation, rotary brushing and vacuum extraction
- Hand cleaning at bends, transitions and dampers
- Access door installation to BS EN 12097 where required
- Fan, motor and discharge cleaning
- Post-clean deposit verification, photography and certificate
What you receive at handover
Every job ships with a single PDF compliance pack: site and system description, methodology, before/after photographs at every access point, sample-point deposit measurements, the signed TR19® certificate and the recommended re-clean date. It is the exact evidence your insurer and fire-risk assessor will ask for.
Frequently asked questions
Do you fit access doors as part of cleaning?+
Yes — where existing access is missing or non-compliant we quote separately for fire-rated access doors to BS EN 12097 so the duct can be properly cleaned and re-inspected.