Hampshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Knowle, Hampshire
Specialist TR19 inspection for Knowle: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- Extracts that have never been grease tested
- An insurer’s request for a TR19 audit
- Pre-clean surveys before a first TR19 clean
When it’s something else
To be straight with you, some problems need a different fix:
- The grease itself, which needs a full or spot clean
- Fire safety duties beyond the extract system
- Sections with no access, until panels are fitted
If in doubt, call us on 0345 646 2711 or drop us a line and we’ll say what we think before you book.
Where we work
- Post-clean checks
- Wet film thickness tests
- Deposit thickness tests
- Access surveys
- Pre-clean surveys
- Insurer audits
TR19 inspection for kitchens and businesses in Knowle
Post-clean verification is a check carried out once the cleaning is done, with fresh grease readings, pictures and a look at the areas that were cleaned. It gives you evidence of how the system was actually left. If you’re dealing with kitchens taken over with no cleaning records and sections of duct that can’t be reached, we can help.
In a small place like Knowle, kitchens are often in older or extended buildings, with long single-storey duct runs, where grease settles in the flat sections. Access, parking and timings are agreed before the day.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. On top of that, we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Location
- Knowle (PO17)
- Region
- Hampshire
- Records
- Certificate and photo report
- Quote
- A fixed quote up front
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
In-house cleaning or a specialist?
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, and that is where we come in.
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Looking after it afterwards
A little care between visits keeps the system in better shape. Our advice:
- Diary the next grease test and clean
- Mention new equipment or longer hours at the next test
- Keep the route to access panels clear
- File every inspection report with your certificates
For an insurer audit, send them the report as it is, with readings, pictures and any areas not accessible.
Fit access panels where the survey finds sections cannot be reached, so every part of the duct can be cleaned.
The process
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. Seeing the system in pictures first means the trip to Knowle can be planned properly.
- First we look at the system’s cleaning history, if there is one.
- The layout is traced from the canopy to the discharge.
- We note where access panels are and where more are needed.
- Grease readings are taken and photos recorded.
- You get a report and a fixed quote for the clean.
Before we arrive
- Let us know when the site is closed or quiet
- Tell us where we can park and unload
- Clear the space around the work
Get a fixed quote
Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and we can price many jobs without a visit.
Read more
Why deal with it now?
If there’s a fire or a claim, your insurer may ask for TR19 records. Missing records can put a claim at risk. Getting an inspection done now starts that paper trail. A fault that closes a site in a village like Knowle affects everyone who depends on it.
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we’ll go through it with you.
Why choose Duct Doctor in Knowle
- Photo reports with every job
- CHAS and SafeContractor accredited, with ISO 9001
- One contact for all your sites in London and the South East
- Evenings, overnight and weekends, plus 24/7 emergency callout
Take a look at our cost guide or our accreditations.
Common questions in Knowle
Which fire authority looks after Knowle?
It’s Hampshire and Isle of Wight Fire and Rescue Service, which covers Knowle. TR19® is not law, but it’s the benchmark many fire officers and insurers look to when they ask how often the extract is cleaned.
Who would carry out a food hygiene inspection at a kitchen in Knowle?
In Knowle, it’s Winchester City council that carries out food hygiene inspections. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.
What types of premises do you cover?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, as well as food production and leisure sites.
What is a WFTT or DTT grease test?
WFTT and DTT are the two methods for measuring grease thickness, in microns. Readings are taken at set points through the system.
Do you have a 24/7 line?
Yes. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line and we’ll talk you through the next steps.
Can you set up regular visits?
Yes. Send details of the systems and how they’re used, and we will suggest a schedule and quote for it.
Can you inspect our extract for our insurance company?
Yes, for kitchens across the South East and London. Tell us what your insurer has asked for and we will set the report out to match.
Is Knowle in your area?
Yes. We work across Greater London, Surrey, Kent, Sussex, Hampshire, the Isle of Wight, Berkshire, Buckinghamshire, Oxfordshire, Hertfordshire and Essex, Knowle included.
Managing agents and facilities teams in Knowle
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.
We also work for facilities teams across offices, schools and healthcare across Hampshire. Work can be phased by floor, building or site to keep disruption down.
When to call us in Knowle
TR19® is the benchmark that insurers, fire officers and EHOs refer to. It is not legislation; the legal duty comes from the Fire Safety Order 2005, under which the responsible person must reduce fire risk, and grease in the extract is part of that risk.
Any of these means the system needs a check-up:
- Heavy grease suspected in the plenum or ducts
- Post-clean verification after another contractor’s clean
- Systems cleaned on a calendar with no measurements
- Sites with gaps in their extract records
Healthcare kitchens, like those at hospitals such as Knowle Hospital (about less than half a mile north-east), often cook for long hours, which puts them in BESA’s heavier-use bands.
What to look for in a quote
- Whether they’re fully insured
- Which accreditations they hold, and whether you can check them
- What records you will receive afterwards
- Whether the quote is based on a survey or photos
Grease, kitchens and Knowle
Look up Knowle on the FSA’s food hygiene register and you will find about 9 restaurants, cafés and canteens in and around Knowle, up to about a mile and a half out. Kitchens like these cook for very different hours, and grease testing shows which extracts need cleaning soonest. The fire and rescue service for Knowle is Hampshire and Isle of Wight Fire and Rescue Service. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises. Food hygiene inspections in Knowle are the job of Winchester City council’s environmental health team. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Our report lists what was cleaned and when, which is useful to have ready.
For schools such as Orchard Lea Infant School, kitchen extract cleaning is usually booked for the holidays, when the canteen is closed. Volunteers running a hall kitchen near Church of St Francis, or anywhere in Knowle, may not know when the extract was last cleaned, and a grease test settles it.
Knowle is about 2 miles north of Fareham, in Hampshire. Every kind of commercial site in Knowle, TR19 inspection is something we can help with. We can work out of hours so the site keeps running. Knowle is one of 683 places in Hampshire where we work for commercial clients. We also work in Portsmouth, about 7 miles from Knowle.
We cover every part of PO17 for TR19 inspection and the streets around it. TR19 inspection is available to premises on Serotine Close, Boundary Walk and Park Approach and nearby roads. Neighbouring places we cover for TR19 inspection include Funtley (1 mile south), Tapnage (1 mile north-west), Heathfield (2 miles south), Segensworth (2 miles west) and Titchfield Park (2 miles south-west). Larger places within reach include Winchester (13 miles north), Gosport (6 miles south-east), Havant (10 miles east), Eastleigh (9 miles north-west), Horndean (9 miles east) and Totton (13 miles west).
Near you in Knowle
Around Knowle, our work takes us to kitchens and buildings near The Miners Arms and The Henry Cort Community College, among other places. For rail, the closest station is Fareham station, roughly 2 miles south of the centre. Nearby you’ll also find Portchester Castle (4.9 miles south-east) and Knowle Hospital (less than half a mile north-east). For a walk, there’s Portsdown Hill and Swanwick Lakes.