Knaresborough · 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 Knaresborough, and certify it to the TR19 Grease standard your insurer expects.
Knaresborough
Knaresborough rates dozens 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.
The city's kitchens sit in tight, mixed stock - Market Place, High Street, Briggate - with long concealed duct runs up to roof fans. We clean the full run to the TR19 Grease standard, canopy to fan, including the horizontal and vertical sections a canopy-only clean leaves coated.
It is not only kitchens: we also clean the dry supply and extract ductwork in Knaresborough offices, schools and public buildings, and the lint-packed laundry runs behind its hotel and care-home dryers. The busiest kitchens - college refectories, hospital kitchens, retail and leisure-centre catering and the town's hotel and pub kitchens - coat their hidden ducting in grease quickest, and that is the very path a fire follows.
The standard
TR19 Grease is the benchmark Knaresborough insurers and fire risk assessors expect - measured across the whole extract run, not just the visible mouth of the canopy.
Because the standard is written around film thickness, it sets the depth that triggers a clean and re-test. In the mixed roof spaces around Market Place and Briggate, a canopy-and-filter wipe leaves the duct interior - where grease piles up and a fire runs - completely alone. We reach the whole Knaresborough run through existing hatches and new ones we cut, clean back to bright metal, take before-and-after grease-depth figures at set points, and certify it to TR19 Grease with those depths on the 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 Knaresborough hotels, care homes and gyms.
On the ground in Knaresborough
We are in Knaresborough's ductwork and plant every week. The proof is the jobs, not the stock photos.
A riverside boathouse cafe in Knaresborough had its ventilation losing pull, the roof cowl seized half-shut and pigeon debris packing the bird-guard behind it. We freed and re-seated the cowl, cleared the guard and mesh, brushed the short vertical rise and re-set the inline fan speed. The washrooms and servery cleared their damp, close air, and the cowl now turns freely on its bearing again.
When it is due
Ductwork rarely warns you politely. In a busy Knaresborough kitchen these are the tells.
Watch for steam that hangs in the room, cooking smells creeping back over the tables, a canopy weeping onto a Market Place line, grease crusting at the filter rims, or a Knaresborough insurer or fire assessor calling for a TR19 certificate you do not hold. How often it needs doing rides on the cooking load - a hard-frying High Street kitchen far more than a quiet daytime cafe - and the certificate fixes that interval, so the next clean is planned, not chanced.
How it runs
Inspect the full Knaresborough 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 Briggate 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 Knaresborough fire logbook.
Why it matters
Three duties push every Knaresborough 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 Knaresborough 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 Market Place 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 current TR19 Grease certificate is the evidence your Knaresborough insurer expects. Without it, a fire claim can be reduced or refused outright - an expensive gap to find after the event.
Hygiene and environmental health. Food hygiene inspections by North Yorkshire Council take in the condition of the building, ventilation included, so a grease-laden system can cost you on the rating an Environmental Health Officer awards - never mind the smell and the dropping extraction your kitchen team works under.
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 Market Place kitchen sits in a tighter band than a daytime High Street cafe. We measure the grease load and confirm your interval.
A dated TR19 certificate, before-and-after photographs of each section, and an access report for your fire logbook - the evidence a Market Place operator's insurer and fire risk assessor expect.
Yes - from Market Place and High Street kitchens to the offices, schools and industrial units across Knaresborough and the wider North Yorkshire.
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 Briggate conversions where the run was boxed in with no hatches.
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 Market Place and Briggate where the runs are long and awkward.
Yes. We work overnight, early mornings and closing days for the Market Place and High Street kitchens, and around shift patterns at commercial and production sites, at no extra charge for out-of-hours work.
Yes. The fan at the top of a Briggate 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.
Local knowledge
The four-arch railway viaduct striding the River Nidd was completed in 1851 for the Leeds and Thirsk line, the second attempt after the first bridge collapsed in 1848 and was rebuilt for 9,803 pounds. That Victorian stonework still carries trains; the ductwork above Knaresborough's kitchens and workshops carries grease and dust, and left uncleaned it feeds fire and chokes airflow. Surveyed, brushed and access-hatched runs are what keep extraction moving and insurers satisfied.
Phoenix Duct Clean · by the numbers
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