Hampshire · Ductwork cleaning
Duct cleaning in Denvilles
For ductwork cleaning in Denvilles, one call is all it takes: survey, fixed quote, work and sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Grease leaking from duct joints
- Heavy grease at the base of a riser
- An insurer asking for TR19 evidence
Managing agents and facilities teams in Denvilles
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.
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We can quote either party and send the paperwork to whoever needs it.
Ductwork cleaning in Denvilles
In doctor’s terms, the ductwork is the system’s arteries: find the blockages, clear them, then check the flow is right. Grease readings before and after give you the evidence, alongside before and after photos. If you are dealing with high readings at a recent grease test and sections of duct with no access panels, we can help, from horizontal duct runs, multi-storey ducts and bends and junctions onwards.
In a smaller place like Denvilles, the kitchens with extract systems are more likely to be a pub, a café, a takeaway or a school or care home kitchen than a big restaurant. A kitchen that cooks fewer hours still builds up grease, so the interval is set by hours of use and grease readings.
The paperwork matters as much as the work. You get a written report with photos after every visit, listing what was done, anything we couldn’t reach and when the next visit is due. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.

- Where
- Denvilles (PO9, PO10)
- Region
- Hampshire
- Records
- Certificate and photo report
- Quote
- A fixed quote up front
- When we work
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Looking after it afterwards
To keep the system working properly between visits:
- Consider fitting panels where the report shows gaps
- Keep your cleaning records together
- Book the next clean before the recommended date
- Ask for a grease thickness test if the kitchen gets busier
The report gives a recommended next clean date, based on the readings and your daily cooking hours, in line with BESA guidance.
The less grease gets past the canopy, the cleaner the duct stays. Clean, properly seated filters are the duct’s best protection.
In-house cleaning or a specialist?
Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, which is where we come in.
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
Why act early in Denvilles
Grease narrows the duct and slows the air. Less air moves, so heat and smoke stay in the kitchen while the fan strains, and grease may start to leak from joints. A quieter site near Denvilles still needs its system looked after.
You will not find a price list here, because each job is priced on what it involves. For a fixed quote, call 0345 646 2711 or drop us a line, and we will explain what it covers.
Why Denvilles businesses choose us
- Full insurance on every job
- Fixed quotes, normally within one working day
- Trading since 2009
- Each visit written up, with pictures
See what affects the cost and our accreditations and certificates.
What affects the quote in Denvilles
We do not publish a price list, because no two systems are the same. What we look at:
- The condition we find in the survey
- A single visit or a regular plan
- When the work can happen, such as evenings, overnight or weekends
- The scale of the work
What you pay reflects the actual work. That’s why we survey first, from photos or on site, and why the quote is fixed before any work starts.
Helping us quote
Photos let us diagnose from a distance. The most useful are:
- The roof, plant room or outside wall the system runs to
- Where the site is and what kind of site it is
- Wide photos of the system and the area around it
- When the site is open and when it’s quiet
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Add the site type and your opening hours, and many jobs can be priced from that alone.
Ductwork cleaning in Denvilles: the local picture
Denvilles lies within about 1 mile of the sea. Near the sea, the fan and discharge at the top of a kitchen extract corrode faster than they would inland. Food Standards Agency data counts about 51 restaurants, cafés and canteens and about 44 takeaways within about 1.5 miles of central Denvilles. Each kitchen that cooks under a canopy sends grease-laden air into a duct, where it cools and settles. Hampshire and Isle of Wight Fire and Rescue Service covers Denvilles. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order.
Term dates shape school work: for a school like Warblington School, an extract clean fits neatly into a half-term or summer break. Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Denvilles is Havant War Memorial Hospital, about 1 mile west. Volunteers running a hall kitchen near St Thomas à Becket Church, or anywhere in Denvilles, may not know when the extract was last cleaned, and a grease test settles it.
Denvilles is about 1 mile south-east of Havant, in Hampshire. If you need ductwork cleaning in Denvilles, it’s easy to get a fixed quote: please give us a ring on 0345 646 2711 or drop us a line. Our area covers London and the South East, including Denvilles. Denvilles is one of 683 places in Hampshire where we work for commercial clients. For sites nearby, see our Portsmouth page, about 6 miles away.
Every address in PO9 and PO10 is covered for ductwork cleaning, from busy streets to back roads. If you need ductwork cleaning at premises on New Lane, Pook Lane and Elder Road or a nearby road, we can help. 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). We also work in nearby towns such as 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. 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). Open spaces near Denvilles include Brook Meadow (Emsworth).
Different parts, different methods
Horizontal duct runs
Grease settles on the floor of a flat duct run. We scrape out the heavy layer first, then the walls and roof are cleaned too.
Bends and transitions
Wherever the duct turns or changes size, grease builds up. Slowing air leaves grease behind, so these points get extra attention.
The process
On the day, we arrive at the time agreed with you, which is often after service, overnight or at a weekend. Equipment that has to be off is switched off and allowed to cool first, and floors and nearby surfaces are sheeted. On site, it takes anything from a few hours to several visits, depending on the length of duct. We plan the journey to Denvilles and bring what the job is likely to need.
- We map the duct route and check where the access panels are.
- Set points along the runs are tested for grease.
- We open the panels and scrape out the heaviest grease.
- The duct is degreased with the method that suits the grease, from degreasers to hot water or steam.
- Readings and photos are repeated and any section we couldn’t reach is recorded.
Before we arrive
- Tell us the best time to work, such as after service or at a weekend
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Let us know about parking and loading
Getting a quote
Quoting starts with a diagnosis, either from photos and details you send or from a site visit. Then we send a fixed price so you know the cost before we start.
Advice
Common questions in Denvilles
Does coastal air change anything about ductwork 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.
Which fire authority looks after Denvilles?
It’s Hampshire and Isle of Wight Fire and Rescue Service, which covers Denvilles. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.
How far ahead should we book?
The more notice, the better, particularly for night and weekend visits. We typically quote within one working day, and there’s a 24/7 line for emergencies.
What is TR19?
A BESA specification, with two parts that matter most here: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It isn’t legislation, but it’s the standard people check against.
What do you do with what you remove?
Anything we remove is contained as we work and taken away with us, including grease, debris and dirty water. None of it is left on site.
Do you work with multi-site operators?
Yes. Tell us the addresses and what each needs and we’ll quote them together.
What’s the cleaning interval for extract ductwork?
BESA guidance sets minimum intervals by daily cooking hours: every 3 months for 12 to 16 hours, 6 months for 6 to 12 hours and 12 months for 2 to 6 hours. Measured grease sets the real interval.
What if part of the duct can’t be reached?
Ductwork needs access to be cleaned. Those parts are listed, and we can install panels so they’re reached next time.