Walthamstow · 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 Walthamstow, and certify it to the TR19 Grease standard your insurer expects.
Walthamstow
Walthamstow rates around 1,900 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 High Street to Hoe Street and Bell corner, 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.
Kitchens are only half the work - we also strip the dry supply and extract ductwork of Walthamstow schools, offices and civic buildings, and the lint-choked dryer runs behind its hotels and care homes. It is the hardest-pressed kitchens - Whipps Cross University Hospital, the William Morris Gallery, 17 and Central and the local hotels - that glaze their hidden ducting quickest, and that coating is the road a fire takes.
The standard
TR19 Grease is the benchmark Walthamstow 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 High Street and Bell corner, 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 Walthamstow 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 Walthamstow hotels, care homes and gyms.
On the ground in Walthamstow
We are in Walthamstow's ductwork and plant every week. The proof is the jobs, not the stock photos.
A six-storey housing block in Walthamstow had heavy organic waste, stagnant liquid and a persistent foul smell lining the walls of its vertical refuse chute. We ran a high-pressure hot-wash spinning nozzle down from the top floor with a broad-spectrum disinfectant, leaving the chute clean and smooth and stopping the smell venting into the lift lobbies. The work was timed with the council's bin rotation so the bin store stayed clear.
When it is due
Ductwork rarely warns you politely. In a busy Walthamstow kitchen these are the tells.
The tells are plain: steam that lingers, odours drifting back over the diners, drips off the canopy onto a High Street line, a rim of grease at the filters, or a Walthamstow insurer or fire assessment wanting a TR19 certificate you cannot show. Frequency tracks the cooking load - a hard-frying Hoe 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 Walthamstow 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 Bell corner 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 Walthamstow fire logbook.
Why it matters
Three duties push every Walthamstow 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 Walthamstow 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 High 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. Your Walthamstow insurer expects a current TR19 Grease certificate as proof the duct is clean. Without one, a fire claim can be cut back or turned down altogether - a costly thing to find only after a fire.
Hygiene and environmental health. When Waltham Forest 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 High Street kitchen sits in a tighter band than a daytime Hoe 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 High Street and Bell corner where the runs are long and awkward.
A dated TR19 certificate, before-and-after photographs of each section, and an access report for your fire logbook - the evidence a High Street operator's insurer and fire risk assessor expect.
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 Bell corner conversions where the run was boxed in with no hatches.
Little, if it is planned. We survey the Walthamstow run first, agree a slot overnight or on a close day, sheet off the kitchen and clean section by section, so a Hoe Street cookline is back in service for the next shift.
Yes. We work overnight, early mornings and closing days for the High Street and Hoe Street kitchens, and around shift patterns at commercial and production sites, at no extra charge for out-of-hours work.
Yes - from High Street and Hoe Street kitchens to the offices, schools and industrial units across Walthamstow and the wider Greater London.
Phoenix Duct Clean · by the numbers
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