Hampshire · Kitchen extract cleaning
TR19 kitchen extract cleaning in Denvilles
Kitchen extract cleaning for Denvilles and the surrounding area: a survey, a fixed price, careful work and proper paperwork. Call for a fixed quote.
- A kitchen with no current TR19 certificate
- Missing paperwork after a change of operator
- An extract that no longer clears the smoke
TR19 kitchen extract cleaning in Denvilles
Every time food is cooked, warm vapour carries fat up into the extract. As it cools, it clings to the inside of the ductwork and keeps building. That film is fuel, and cleaning the whole system is how you keep it under control. The work covers vertical risers, horizontal duct runs and discharge points, and the jobs we see most are grease smells coming from the extract and a kitchen with no current TR19 certificate. Kitchen extract cleaning, TR19 cleaning, extraction cleaning: whatever you call it, it’s the job we do every week across Hampshire.
Grease that collects out of sight, behind the filters and along the duct, is what insurers and fire officers worry about, which is why a TR19® clean in Denvilles goes well beyond the canopy.
Size does not change the work: a kitchen in a place like Denvilles gets the whole system cleaned, canopy to discharge. The visit is booked around your opening hours, and the journey is planned ahead.
Good records are part of the job. Each visit is written up with photos, covering the work done, any areas we couldn’t access and a recommended next date. Keep it with your fire safety records so it’s to hand when an insurer or inspector asks.

- Location
- Denvilles (PO9, PO10)
- Region
- Hampshire
- Records
- Certificate plus before-and-after photos
- Quote
- Fixed quote, normally within a working day
- Working hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Questions from Denvilles
Do you do school kitchen extract cleaning in Denvilles in the summer holidays?
Yes. The holidays are the usual time for school work. With about 7 schools and colleges on the FSA’s register within roughly a mile and a half of Denvilles, it pays to plan holiday dates ahead. Just give us a ring on 0345 646 2711, or send details by email with your term dates and we’ll plan around them.
Can sea air affect kitchen extract cleaning in Denvilles?
It can. Denvilles is within about 1 mile of the coast, and salt air speeds up corrosion. We look at fans, cowls and fixings for rust as well as grease.
What do I get after the clean?
You receive a TR19 certificate and a photo report. The certificate is issued through the BESCA Vent Hygiene Elite portal, and the report shows before and after photos, readings, any areas not reached and the next clean date.
How far ahead should we book?
The more notice, the better, especially for out-of-hours work. We usually quote within one working day, and there’s a 24/7 line for emergencies.
Are you accredited for kitchen extract cleaning?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
What information do you need?
Where the site is, what it is and when it’s open, along with a few pictures and any previous report.
Do you have a 24/7 line?
Yes. There’s a 24/7 emergency line, for problems that cannot wait. Call us any time and explain what’s happened.
What about areas you cannot get to?
The report shows them clearly. In ductwork, new access panels are often the answer, and we can fit those.
How we price kitchen extract cleaning
The price is fixed before any work begins. It takes into account:
- The number of sites or systems
- A single visit or a regular plan
- Access, including roofs, risers and ceiling voids
- The times the site is available
When the work has to happen, how we reach it and how big the site is all affect the cost. Each of those is built into the quote and give you a fixed price before we start.
Asking for a quote
When you contact us, these details help:
- The roof, plant room or outside wall the system runs to
- Your opening hours and when the area is out of use
- Detail shots of panels, filters and grilles
- Photos showing the whole system and its surroundings
There’s no standard price list, because every site is different. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To get going, call 0345 646 2711, or send details by email.
Nearby places to Denvilles
Also in Denvilles
What a clean won’t put right
Before you book, it helps to know what’s not included:
- A broken extract fan that will not run
- A grease trap that needs emptying
- Damaged duct sections that need replacing
Not sure which it is? You can give us a ring on 0345 646 2711, or email photos and we’ll tell you honestly before booking.
What the work covers
- Horizontal duct runs
- Vertical risers
- Extract fans
- Discharge points
- Canopies and hoods
- Plenums and filters
Kitchen extract cleaning around Denvilles
Sea air reaches Denvilles, which sits within about 1 mile of the coast. Metal on the roof weathers faster close to the coast, and the extract fan and cowl are no exception. The FSA’s food hygiene register shows about 51 restaurants, cafés and works canteens and about 44 sandwich bars and takeaways within 1.5 miles or so of the middle of Denvilles. Each one that cooks under a canopy has an extract system that collects grease and needs regular cleaning. In Denvilles, food businesses are inspected by environmental health officers from Havant council. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Before-and-after pictures from each clean are a simple way to show the extract is in hand.
A kitchen near Warblington station that serves breakfast and dinner can run its extract twelve hours or more, which shortens the cleaning interval. If you run a church or community hall kitchen, near St Thomas à Becket Church or elsewhere in Denvilles, its extract still collects grease from every lunch and event.
Denvilles is about 1 mile south-east of Havant, in Hampshire. We provide kitchen extract cleaning for commercial premises of every kind in Denvilles and the rest of Hampshire. Denvilles is one of 683 places in Hampshire where we work for kitchen extract cleaning. For sites nearby, see our Portsmouth page, about 6 miles away.
Every address in PO9 and PO10 is within our area for kitchen extract cleaning, from busy streets to back roads. We cover sites on New Lane, Pook Lane and Elder Road and nearby roads. Other places close to Denvilles include Warblington (1 mile south), Havant (1 mile north-west), Emsworth (1 mile east), Langstone (1 mile south-west) and Leigh Park (1 mile north-west). Within a short drive, we also cover Gosport (9 miles south-west), Fareham (10 miles west), Horndean (4 miles north-west), Hedge End (15 miles west), Waterlooville (4 miles north-west) and Petersfield (10 miles north).
Near you in Denvilles
We work in commercial kitchens and buildings around Six Bells pub, St Albans Church and Fairfield Infant School and the streets around them. Denvilles has its own railway station: Warblington station. Nearby you’ll also find Warblington Castle (0.7 miles south) and Havant War Memorial Hospital (1 mile west). Not far away are Brook Meadow (Emsworth).
Part by part
Restaurant and pub kitchens
Grills, fryers and woks send a lot of fat into the extract, and measured readings show whether the minimum interval is enough.
Grease filters
Between TR19 cleans, filters still need regular cleaning and we offer a filter exchange service for that. Clean filters slow the build-up further down the system.
Why deal with it now?
Leaving the clean until the next refit doesn’t make the grease go away. Fat that was soft and easy to remove hardens with heat and time, which is slower to clean. Regular cleans keep each visit shorter. Even a site near Denvilles that is only busy part of the week needs its system checked on a schedule.
The cost depends on how big the system is, the condition it’s in and how easy it is to reach. We give you a fixed price before we start, so there are no surprises.
Why Denvilles businesses choose us
- One number for every site across the South East and London
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Full insurance on every job
- Ventilation hygiene specialists since 2009
Take a look at how cleaning jobs are priced and our accreditations.
Multi-site and managed buildings
We also work for facilities teams across offices, schools and healthcare across Hampshire. Larger estates can be phased building by building to keep disruption down.
If you look after several sites, we can plan visits across the whole estate and price them together. Each site gets its own report and photos, so each one has its own record.
Common problems we fix in Denvilles
The type of cooking changes the amount of grease. Frying, grilling and roasting send far more fat into the canopy than steaming or boiling, so two kitchens with the same hours can need very different intervals.
These are the problems we see most often:
- Extraction mentioned at an environmental health visit
- Grease smells coming from the extract
- A kitchen with no current TR19 certificate
- Heavy grease build-up inside the duct runs
A hospital like Havant War Memorial Hospital, about 1 mile west, is the kind of site where a kitchen may cook for patients, staff and visitors all day.
Comparing quotes
- When they can work, and whether that’s outside your opening hours
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether a written report and photos are included
- If the quote is a fixed price or an estimate
The process
At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. The visit takes a single shift for most kitchens, with long duct runs and tall risers needing more time. Tell us when your site near Denvilles is quiet and the visit will be booked for then.
- We start with a survey, so we know every part of the system before we quote.
- Set points are tested for grease thickness and the quote is fixed before we start.
- With the kitchen closed and equipment off and cool, the area is sheeted.
- Canopy, plenum, filters, duct runs, risers, fan and discharge are all cleaned to TR19® Grease.
- Finally the system is re-tested and photographed, and the certificate and report follow.
Preparing for the visit
- Let us know about parking and loading
- Have your last certificate or report to hand
- Mention any sign-in, permit or induction we need
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.