Dartford · 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 Dartford, and certify it to the TR19 Grease standard your insurer expects.
Dartford
Dartford rates around 1,000 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.
Kitchens across Dartford work out of tight, mixed premises - Lowfield Street, High Street, Swanscombe - their extract snaking through concealed voids to roof-mounted fans. We take the whole run to the TR19 Grease standard, hood to fan, reaching the horizontal legs and vertical risers a canopy wipe never touches.
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 Kent College, Darent Valley Hospital, Princes Park and the Bluewater centre - lay grease down fast in exactly the concealed sections where a fire travels.
The standard
TR19 Grease is the benchmark Dartford insurers and fire risk assessors expect - measured across the whole extract run, not just the visible mouth of the canopy.
The standard works in grease-film thickness, fixing the depth at which a run must be cleaned and re-tested. In the shared roof voids around Lowfield Street and Swanscombe, wiping the canopy and filters leaves the ductwork - the long concealed sections that gather grease and carry fire - untouched. We open the full Dartford run through existing and newly cut inspection hatches, strip it to bare metal, log grease-depth readings at fixed points before and after, and issue a TR19 Grease certificate with the post-clean depths recorded.
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 Dartford hotels, care homes and gyms.
On the ground in Dartford
We are in Dartford's ductwork and plant every week. The proof is the jobs, not the stock photos.
A high-street burger restaurant in Dartford had heavy flammable grease and sticky oil residue through the extraction hood and horizontal duct run. We scraped the hardened grease back to bare metal and worked a high-strength degreasing solution through, bringing the system to a clean, TR19-compliant standard. It was cleaned in the early morning so it did not interfere with the lunchtime trade.
When it is due
Ductwork rarely warns you politely. In a busy Dartford 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 Lowfield Street line, grease crusting at the filter rims, or a Dartford 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 Dartford 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 Swanscombe 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 Dartford fire logbook.
Why it matters
Three duties push every Dartford 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 Dartford 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 Lowfield 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 Dartford 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. Food hygiene inspections by Dartford Borough 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 Lowfield Street kitchen sits in a tighter band than a daytime High Street cafe. We measure the grease load and confirm your interval.
Yes - from Lowfield Street and High Street kitchens to the offices, schools and industrial units across Dartford and the wider Kent.
Yes. The fan at the top of a Swanscombe 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.
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 Lowfield Street and Swanscombe 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 Lowfield Street operator's insurer and fire risk assessor expect.
Yes. We clean the dry ductwork and air-handling in Dartford offices, schools and public buildings, and the lint-heavy laundry ducts in the Kent hotels and care homes, alongside kitchen grease ducts.
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 Swanscombe conversions where the run was boxed in with no hatches.
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