Maidstone · TR19 Grease
We clean the full commercial duct run - grease, dry and laundry ductwork, canopy to roof fan - for kitchens, offices and industrial sites across Maidstone, and certify it to the TR19 Grease standard your insurer expects.
Maidstone
Maidstone rates around 1,400 food premises, and behind a large share sits an extract duct a canopy clean never reaches - plus the dry ductwork and air-handling that keep its offices and public buildings running.
Right across Maidstone, from Week Street through Earl Street to Fremlin Walk, cooklines share tight roof space and vent through concealed ducting few operators ever see inside. We clean that entire path to the TR19 Grease standard, canopy through to fan, taking in the level pulls and the risers where grease settles thickest and a fire would run.
Beyond the kitchens, we clean the dry ductwork and air-handling in offices, schools and public buildings, and the lint-heavy laundry ducts in hotels and care homes. High-output kitchens - MidKent College, Maidstone Hospital, the Gallagher Stadium and the town-centre hotels - lay grease down fast in exactly the concealed sections where a fire travels.
The standard
TR19 Grease is the benchmark Maidstone insurers and fire risk assessors expect - measured across the whole extract run, not just the visible mouth of the canopy.
Grease is measured by thickness, and the standard sets the depth at which a system must be cleaned and re-tested. Around Week Street and Fremlin Walk, where the concealed runs thread through mixed roof voids, a canopy-and-filter wipe leaves the ductwork itself - the long hidden sections where grease accumulates and a fire travels - untouched. We access the full Maidstone run through existing and newly fitted inspection hatches, clean to bare metal, record before-and-after grease-depth readings at set points, and issue a TR19 Grease certificate with a post-clean depth record.
By system
The fire risk. Fried-food extract coats duct walls in combustible grease; cleaned canopy to fan and certified to TR19 Grease.
Supply and general extract in offices and public buildings, carrying dust and debris that throttles airflow and loads the air-handling unit; cleaned to TR19.
The hidden one. Tumble-dryer ducting packs with lint - highly combustible - in Maidstone hotels, care homes and gyms.
On the ground in Maidstone
We are in Maidstone's ductwork and plant every week. The proof is the jobs, not the stock photos.
A public library in Maidstone had fine grey particulate settling inside the supply ducts feeding the archive room, and the dust was a threat to the stored books. We worked manual push-rod brushes and high-filtration HEPA vacuums gently through the internal linings, keeping vibration out of the runs. The supply channels came back visibly clean and particulate-free. The archive environment is held to strict humidity and temperature, so we worked under the room's monitors the whole time.
When it is due
Ductwork rarely warns you politely. In a busy Maidstone kitchen these are the tells.
The tells are plain: steam that lingers, odours drifting back over the diners, drips off the canopy onto a Week Street line, a rim of grease at the filters, or a Maidstone insurer or fire assessment wanting a TR19 certificate you cannot show. Frequency tracks the cooking load - a hard-frying Earl Street kitchen needs it far more often than a quiet cafe - and your certificate sets the date, so nothing is left to chance.
How it runs
Inspect the full Maidstone run, find the access gaps in the concealed sections, agree scope and frequency.
Fit inspection hatches where the run is sealed - common in the older Fremlin Walk conversions - and protect the kitchen.
Canopy to roof fan, down to bare metal, with before-and-after grease-depth evidence.
TR19 Grease certificate, grease-depth record and next-due date for your Maidstone fire logbook.
Why it matters
Three duties push every Maidstone operator to keep ductwork clean, and they reinforce one another.
Fire safety law. Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person for a Maidstone premises must assess and manage fire risk. A grease-laden duct is one of the most serious risks in any catering building, because a flare-up on a Week Street cookline can travel the ductwork and spread fire through concealed voids. The Health and Safety at Work etc. Act 1974 and the HSE reinforce the same duty of care.
Insurance. A live TR19 Grease certificate is what a Maidstone insurer treats as evidence the system is maintained. Miss it and a fire claim may be reduced or refused - an expensive surprise once the damage is done.
Hygiene and environmental health. When Maidstone Borough Council carries out a food hygiene inspection it judges the physical state of the premises, and ventilation is part of that. A grease-choked extract can pull down the rating an Environmental Health Officer gives, on top of the odour and the weakening airflow your staff put up with.
It is set by cooking hours under TR19 Grease - roughly every three months for heavy use of 12 to 16 hours a day, every six for moderate, every twelve for light. A hard-frying Week Street kitchen sits in a tighter band than a daytime Earl Street cafe. We measure the grease load and confirm your interval.
The full run, canopy through the concealed horizontal and vertical ductwork to the roof fan - the hidden sections a canopy-only clean leaves loaded, which matters in the tight stock around Week Street and Fremlin Walk where the runs are long and awkward.
Yes - from Week Street and Earl Street kitchens to the offices, schools and industrial units across Maidstone and the wider Kent.
Yes. The fan at the top of a Fremlin Walk or city-centre riser is where grease throws off the blades and the run ends - we degrease it and its housing, because a loaded fan is what finally stops a system pulling.
We fit compliant access panels where the ductwork has none, so every internal section can be reached, cleaned, inspected and certified - common in the older Fremlin Walk conversions where the run was boxed in with no hatches.
Little, if it is planned. We survey the Maidstone run first, agree a slot overnight or on a close day, sheet off the kitchen and clean section by section, so an Earl Street cookline is back in service for the next shift.
Yes. We clean the dry ductwork and air-handling in Maidstone offices, schools and public buildings, and the lint-heavy laundry ducts in the Kent hotels and care homes, alongside kitchen grease ducts.
Phoenix Duct Clean · by the numbers
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