High Wycombe · 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 High Wycombe, and certify it to the TR19 Grease standard your insurer expects.
High Wycombe
High Wycombe rates thousands of 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.
From Desborough Road to High Street and Frogmoor, the town's cooklines vent through long hidden ducting that climbs to a roof fan. We clean it end to end to the TR19 Grease standard - not just the canopy, but the flat and rising sections where grease really collects.
It is not only kitchens: we also clean the dry supply and extract ductwork in High Wycombe offices, schools and public buildings, and the lint-packed laundry runs behind its hotel and care-home dryers. The busiest kitchens - Buckinghamshire New University, Wycombe Hospital, Adams Park and the town hotels - coat their hidden ducting in grease quickest, and that is the very path a fire follows.
The standard
TR19 Grease is the benchmark High Wycombe insurers and fire risk assessors expect - measured across the whole extract run, not just the visible mouth of the canopy.
The standard is written in film thickness: once grease reaches a set depth the run has to be cleaned and proven again. In the crowded roof voids off Desborough Road and Frogmoor, a wipe of the canopy and filters never reaches the ductwork behind them, where the grease that carries fire quietly gathers. We work the whole High Wycombe run through hatches already in place and others we cut, bring it back to bright metal, note grease depths at fixed stations before and after, and certify to TR19 Grease with the closing figures logged.
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 High Wycombe hotels, care homes and gyms.
On the ground in High Wycombe
We are in High Wycombe's ductwork and plant every week. The proof is the jobs, not the stock photos.
An office block in High Wycombe had severe dust, lint and paper-towel fibre blocking the central extract fan housing and the vertical exhaust riser off the washrooms. We ran negative-air machines with air whips to knock the compacted dust loose out of the rectangular galvanised runs, restoring the ventilation across all the office washrooms. We also found a volume-control damper that had shaken shut and re-opened and locked it in position on site.
When it is due
Ductwork rarely warns you politely. In a busy High Wycombe kitchen these are the tells.
A canopy dripping onto a Desborough Road cookline, cooking smells forced back to the tables, extraction that no longer clears the steam, grease showing at the filter edges, or a High Wycombe insurer or fire risk assessor wanting a TR19 certificate you have not got. How often it needs doing follows how hard you cook - a fast-frying High Street kitchen far more than a daytime cafe - and the certificate names the interval, so the next visit is booked, not guessed.
How it runs
Inspect the full High Wycombe 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 Frogmoor 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 High Wycombe fire logbook.
Why it matters
Three duties push every High Wycombe 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 High Wycombe 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 Desborough Road 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. To a High Wycombe insurer a current TR19 Grease certificate is the proof the extract has been kept up. Let it lapse and a fire claim can be scaled back or declined outright - the kind of gap nobody wants to find with the kitchen already gutted.
Hygiene and environmental health. When Buckinghamshire 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 Desborough Road kitchen sits in a tighter band than a daytime High 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 Desborough Road and Frogmoor where the runs are long and awkward.
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 Frogmoor conversions where the run was boxed in with no hatches.
Yes. We work overnight, early mornings and closing days for the Desborough Road and High Street kitchens, and around shift patterns at commercial and production sites, at no extra charge for out-of-hours work.
Yes - from Desborough Road and High Street kitchens to the offices, schools and industrial units across High Wycombe and the wider Buckinghamshire.
Yes. We clean the dry ductwork and air-handling in High Wycombe offices, schools and public buildings, and the lint-heavy laundry ducts in the Buckinghamshire hotels and care homes, alongside kitchen grease ducts.
A dated TR19 certificate, before-and-after photographs of each section, and an access report for your fire logbook - the evidence a Desborough Road operator's insurer and fire risk assessor expect.
Phoenix Duct Clean · by the numbers
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