Kent · Ductwork cleaning
Ductwork cleaning in Lenham, Kent
For ductwork cleaning in Lenham, one call is all it takes, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Hardened, baked-on grease in long horizontal runs
- Thick deposits at the bottom of a vertical duct
- Gaps where access panels were never fitted
About our ductwork cleaning in Lenham
We treat ductwork like a doctor treats arteries: find the blockages, clear them, then check the flow is right. Readings taken before and after show the difference, alongside before and after photos. The work covers vertical risers, multi-storey ducts and horizontal duct runs, and people most often call us about ductwork that has never been cleaned and a grease test showing the duct is overdue.
In a smaller place like Lenham, many kitchens sit in older buildings or later extensions, with the duct running through a roof space or up an outside wall. Flat runs collect grease and need proper access to clean.
It’s worth checking any contractor’s accreditations. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, with full insurance on top.

- Where
- Lenham (ME17)
- Region
- Kent
- Reporting
- Certificate plus before-and-after photos
- Quotes
- A fixed price before we start
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
Keeping the system healthy
To keep the system working properly between visits:
- Diarise the next duct clean
- Don’t switch the extract off early
- Leave a way through to the access panels
- Keep grease filters clean and fitted whenever you cook
The report names every part of the duct that couldn’t be reached, with the reason. We can fit access panels so those sections are cleaned next time.
Keep the fan on throughout service. Moving air carries vapour through rather than letting it settle, so switching off early adds to the build-up.
Why it’s worth doing now in Lenham
Fire inside a duct is out of sight and out of reach. It can travel through the ductwork to other parts of the building, which is why the duct matters as much as the canopy. A quieter site near Lenham still needs its system looked after.
No two sites are the same, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
Why us?
- CHAS and SafeContractor accredited, with ISO 9001
- One contact for all your sites in London and the South East
- Ventilation hygiene specialists since 2009
- Out-of-hours work and a 24/7 emergency line
See our cost guide and how to check a contractor.
Common questions in Lenham
Can you work in Lenham outside opening hours?
Yes, evening, overnight and weekend work is normal for us. The work in Lenham can fit around your hours. Let us know the hours you are closed and we’ll book within them.
Can you get to a site in Lenham?
Yes. Villages and rural sites across the South East are part of our work, Lenham included. Let us know about access, parking and anything unusual about getting there when you book.
What shows that the ducts need a clean?
Start with the date of the last clean. No record, or a passed date, means it’s due, and grease readings will confirm how urgent it is.
Where does the waste go?
Anything we remove is contained as we work and taken away with us, from grease and debris to used cleaning water. None of it is left on site.
What does TR19 mean?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
How much notice should we give?
It depends on the time you need and how big the job is. Mention your preferred dates with your enquiry, and for anything urgent, ring our 24/7 emergency line.
Which accreditations do you hold?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we’re fully insured.
What’s the cleaning interval for extract ductwork?
At least as often as BESA guidance sets for your cooking hours. Kitchens cooking 12 to 16 hours a day need it at least every 3 months, while lighter use can go longer.
Places near Lenham
More services for Lenham
For landlords and multi-site operators
Records are where multi-site compliance often slips. Each visit ends with a dated report and pictures, so you can show an insurer or inspector what was done at each site.
We regularly work with managing agents. Send the address, what’s needed and how access works, and we will send a fixed quote.
What staff can safely do
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. What they cannot safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.
How the job changes from site to site
Access panels
After cleaning, every panel is closed and sealed so the duct stays tight. A damaged panel is noted on the report.
Horizontal duct runs
Flat runs of duct link the canopy to the riser or the outside wall. Grease drops out of the slowing air along them, and we clean them section by section through access panels.
Lenham kitchens: local notes
The FSA’s food hygiene register includes about 4 pubs and bars in Lenham and the streets around it, up to about 1.5 miles out. Any of them serving cooked food has an extract to keep clean, from canopy to discharge. Fire safety in Lenham falls to Kent 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. Environmental health officers from Maidstone council inspect food businesses in Lenham. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Before-and-after photos from each clean are a simple way to show the extract is in hand.
Commuter trade near Lenham station can mean long cooking hours, and long hours put a kitchen into BESA’s more frequent cleaning bands. If you run catering at a historic house or estate in the area (Leeds Castle is about 3.6 miles west), event kitchens in older buildings often have awkward duct runs that need planning. Where a hall near St Mary's Church, or anywhere in Lenham, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
Lenham is about 7 miles south of Sittingbourne, in Kent. We carry out ductwork cleaning for commercial premises of every kind in Lenham and the rest of Kent. We cover 922 places across Kent, from busy centres to quieter spots. For sites nearby, see our Maidstone page (8 miles or so).
We cover every part of the ME17 postcode area for ductwork cleaning and the streets around it. We cover sites on High Street, Mitchell Close and Hatch Road and the roads around them. We also cover the places around Lenham: Leadingcross Green (1 mile south), Woodside Green (1 mile north-east), West Street (1 mile north-east), Lenham Forstal (2 miles south-east) and Lenham Heath (2 miles south-east). Further out, we also cover Maidstone (8 miles west), Ashford (9 miles south-east), Sittingbourne (7 miles north), Faversham (9 miles north-east), Minster (13 miles north) and Kings Hill (13 miles west).
Landmarks near Lenham
In Lenham, that means kitchens and buildings near Kiln Wood, The Red Lion pub and The Lenham School. There’s a railway station in Lenham itself: Lenham station. Nearby you will also find Coldbridge Castle (2.7 miles south) and The Dog Collar Museum (3.6 miles west).
What happens on the day
Everything the job needs comes with us, from protective sheeting to tools and access equipment. All we need from you is clear access and the right equipment switched off. On site, the work takes from a few hours to more than one visit, depending on duct length and access. A site near Lenham normally has room to park, so the questions are about access to the system and your hours.
- Diagnosis: a survey of the duct’s route, size and access.
- A fixed quote follows, based on what we found.
- We clean section by section, working from panel to panel.
- We take extra care at bends and at the foot of risers.
- Readings, pictures and a recommended next clean date complete the job.
Getting ready for the visit
- Tell us about site rules, permits or sign-in
- Mention any parking or loading restrictions
- Name a contact who can let us in at the agreed time
How to get 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, before any work starts.
Read more
When it’s something else
Some problems need a different service or another trade:
- Fire dampers that don’t close (they need testing and remedials)
- Duct sealed behind fixed ceilings or walls
- Ductwork that’s corroded, split or holed (that needs a ductwork contractor)
Not sure which it is? You can phone us on 0345 646 2711, or email photos and we will tell you honestly.
What we work on in Lenham
- Horizontal duct runs
- Bends and junctions
- Multi-storey ducts
- Attenuators
- Vertical risers
- Access panels