Stevenage · 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 Stevenage, and certify it to the TR19 Grease standard your insurer expects.
Stevenage
Stevenage rates around 680 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 Stevenage, from Queensway through Old Town to Forum, 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 - North Hertfordshire College, Lister Hospital, Broadhall Way and the town hotels - lay grease down fast in exactly the concealed sections where a fire travels.
The standard
TR19 Grease is the benchmark Stevenage 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 Queensway and Forum, a canopy-and-filter wipe leaves the duct interior - where grease piles up and a fire runs - completely alone. We reach the whole Stevenage 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 Stevenage hotels, care homes and gyms.
On the ground in Stevenage
We are in Stevenage's ductwork and plant every week. The proof is the jobs, not the stock photos.
A corporate office block on one of Stevenage's business parks had built up heavy atmospheric dust, tree pollen off the New Town's green cycleways and fine black particulate through the main supply and return ducts across three floors. We sealed off each office zone in turn, drove motorised brushes the length of the trunking and drew the loosened debris out with a HEPA air mover, and the recirculated air cleared noticeably. A fresh set of pleated synthetic filters was sourced for the building's own maintenance team to fit on their service cycle.
When it is due
Ductwork rarely warns you politely. In a busy Stevenage kitchen these are the tells.
A canopy dripping onto a Queensway cookline, cooking smells forced back to the tables, extraction that no longer clears the steam, grease showing at the filter edges, or a Stevenage 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 Old Town 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 Stevenage 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 Forum 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 Stevenage fire logbook.
Why it matters
Three duties push every Stevenage 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 Stevenage 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 Queensway 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 Stevenage 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. Stevenage Borough Council food hygiene inspections assess the physical condition of premises, ventilation included. A grease-clogged system can count against the rating an Environmental Health Officer awards, quite apart from the smell and the falling extract performance your staff have to work in.
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 Queensway kitchen sits in a tighter band than a daytime Old Town cafe. We measure the grease load and confirm your interval.
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 Forum conversions where the run was boxed in with no hatches.
Yes. The fan at the top of a Forum 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.
Yes. We work overnight, early mornings and closing days for the Queensway and Old Town kitchens, and around shift patterns at commercial and production sites, at no extra charge for out-of-hours work.
A dated TR19 certificate, before-and-after photographs of each section, and an access report for your fire logbook - the evidence a Queensway operator's insurer and fire risk assessor expect.
Yes - from Queensway and Old Town kitchens to the offices, schools and industrial units across Stevenage and the wider Hertfordshire.
Yes. We clean the dry ductwork and air-handling in Stevenage offices, schools and public buildings, and the lint-heavy laundry ducts in the Hertfordshire hotels and care homes, alongside kitchen grease ducts.
Phoenix Duct Clean · by the numbers
Tell us about your kitchen and your schedule. No-obligation quote, UK-wide.