Kent · Ventilation duct cleaning
Ventilation Duct Cleaning in How Green
Our technicians work in How Green on TR19 Air cleaning of general supply and extract ventilation ductwork in commercial buildings. Fixed quotes, work around your opening hours and photo reports on every job.
- Ductwork with too few access panels to clean
- Damp or stale smells from grilles
- Ductwork never cleaned since it was installed
Ventilation in How Green buildings
Going by the FSA’s register, there are about 3 schools, colleges and universities serving food within 1.5 miles or so of the middle of How Green. Busy, occupied buildings like these are where clean supply air matters most. For How Green, the closest hospital is Tandridge Priory, roughly 5.4 miles north-west. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. How Green is about 23 miles from central London, well within the area we cover across London and the South East. Visits are booked around your hours, evenings and weekends included.
For schools like Hever Church of England Voluntary Aided Primary School, the holidays are the usual time to inspect and clean ventilation. If you run a surgery, dental practice or care home near How Green, clean ventilation matters as much to you as to a hospital like Tandridge Priory (about 5.4 miles north-west).
How Green is about 7 miles south-west of Sevenoaks, in Kent. Whether your site is in the middle of How Green or further out, ventilation duct cleaning is available to all kinds of commercial premises, from small sites to large estates. Our area takes in 922 places across Kent, large and small. Maidstone is in our area too, around 19 miles away.
We cover every part of the TN8 postcode area for ventilation duct cleaning and the streets around it. Whether your site is on Hever Road and How Green Lane or a nearby road, we can help. Other places close to How Green include Hever (1 mile south), Newtown (2 miles south), Markbeech (2 miles south), Chiddingstone Causeway (3 miles east) and Chiddingstone Hoath (3 miles south-east). Further out, we also cover Sevenoaks (7 miles north-east), Royal Tunbridge Wells (8 miles south-east), Tonbridge (7 miles east), Swanley (14 miles north), Kings Hill (14 miles east) and Paddock Wood (12 miles east).
Landmarks near How Green
Locally, jobs take us to businesses close to The Wheatsheaf Public House and Chiddingstone Castle Park and Gardens and the streets around them. The nearest railway station is Hever station, about 1.3 miles south-west of the centre. A little further out are Tandridge Priory (5.4 miles north-west) and Hever Castle (0.7 miles south).
Ventilation duct cleaning for kitchens and businesses in How Green
Ventilation duct cleaning is something we carry out for buildings in How Green and right across Kent, from offices and schools to hospitals, care homes and shops. Every job begins with a survey and a fixed quote. The work covers general extract ductwork, grilles and diffusers and toilet extract systems, and people most often call us about ventilation full of debris from building work and musty smells from the ventilation.
Somewhere as small as How Green, ducted ventilation is typically limited to a school, a care home, a surgery or a converted business building, wherever there is one, but those that do need it inspected and cleaned like any other.
Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.

- Place
- How Green (TN8)
- Wider area
- Kent
- Records
- Photo report after each visit
- Quote
- A fixed price before any work starts
- When we work
- When your site is closed, plus a 24/7 line
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
How Green questions
Do you do school ventilation cleaning in How Green in the summer holidays?
Yes. The holidays are the usual time for school work. Food Standards Agency records list about 3 schools, colleges and universities with registered kitchens within about a mile and a half of How Green. Tell us your holiday dates and we will book the visit for when the site is empty.
Do you cover smaller places like How Green?
Yes, How Green is part of our area, however small the site. Photos of the system and directions to the site help us plan the visit.
How do you keep the site clean during the work?
We cover floors and nearby surfaces with sheeting before any work starts, and anything we remove is contained. Before we leave, we tidy up and clean down.
How much notice should we give?
For planned work, earlier is better, particularly if your next visit is nearly due. Emergencies are different, because our line is open 24/7.
Can you clean without closing the building?
Yes, whenever daytime working is not practical. We agree a window when the ventilation can go off.
Is TR19 cleaning required by law?
Not in itself. TR19® is the benchmark insurers, fire officers and EHOs check against, and many insurers ask for proof of cleaning to it. The legal duty sits in the Regulatory Reform (Fire Safety) Order 2005 in England and Wales.
Do you have a 24/7 line?
Yes, 24/7. Our office is open from 8am to 6pm on weekdays, with the emergency line covering every other hour.
Are you insured?
Yes, we are fully insured. CHAS and SafeContractor accreditation sit alongside it, for sites that check contractor safety.
How it works
There are three stages on the day: getting the area ready, doing the work and signing it off. Getting ready means protecting surfaces and switching off what needs to be off, and the sign-off is a written report with pictures. Most of the time goes on the work itself, which takes from one overnight visit to a phased programme over several weeks. The timing of a visit to How Green is set by you, and the travel is our side of the planning.
- First we check the layout and any past paperwork.
- We inspect the ducts at chosen points to see where cleaning is needed.
- The work area is protected and the system switched off.
- We clean the system and remove the debris from site.
- The report records what was cleaned, anything not reached and a next inspection date.
Preparing for the visit
- Let us know when the site is closed or quiet
- Let us know how we reach the system, including roofs, risers and plant rooms
- Let us know about parking and loading
Get a fixed quote
Getting a quote doesn’t take long. Send a few details and pictures, and we normally reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
Read more
Leave it or put it right?
Starting with an inspection means you only clean what needs it. Putting the inspection off just means you do not know where you stand. In a place like How Green, ductwork and fans are easy to forget until something goes wrong.
Several systems or sites on one quote can make for a more efficient booking. Tell us about everything you’d like looked at, and you’ll get one fixed quote.
Why How Green businesses choose us
- Ventilation hygiene specialists since 2009
- Survey first, then a fixed quote
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- One number for every site across the South East and London
See what affects the cost and our accreditations.
Between visits
Aftercare is simple, and it helps at the next visit:
- Keep the TR19 certificate and photo report in the maintenance log
- Keep to the inspection interval in your report
- Stick to the filter change schedule
- Report leaks or damp near ceilings and risers
If there’s building work planned, protect the ventilation. Turn off the system or cover the openings during dusty jobs.
Do not let construction dust into the ventilation by switching it off or covering the grilles.
How we price ventilation duct cleaning
We do not publish a price list, because sites vary so much. What we look at:
- What state the system is in
- One-off work versus a regular cycle
- The size of the system
- Any permits to work or inductions
The price reflects the work, not guesswork. That’s why we survey first, from pictures or on site, and why the quote is fixed before work begins.
What we need to know
The more you tell us, the more accurate the quote. With your enquiry, please include:
- How we’d reach plant on a roof or in a plant room
- The times we could work without disrupting the site
- Detail shots of panels, filters and grilles
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
Need a price for ventilation duct cleaning? Please ring 0345 646 2711, or send details by email with a few details about the site. We’ll talk you through the work and send you a fixed quote before you commit to anything.
More services for How Green
Part by part
Offices and retail
In offices and retail, we often work evenings, overnight or at weekends so staff and customers are not disturbed.
Extract ductwork
General extract ductwork removes stale air from rooms, toilets and washrooms. Lint, dust and fibres gather inside and slowly narrow.
What a clean will not put right
We will not sell you work that doesn’t address the problem, so these are the things it won’t cover:
- Damaged ductwork beyond cleaning
- Design problems with the ductwork layout
- Building management settings that run the plant
If you’re not sure, just call us on 0345 646 2711, or send details by email and we’ll give you a straight answer.
Where we work
- Hospitals and care homes
- Grilles and diffusers
- Offices and schools
- Toilet extract systems
- Supply ductwork
- General extract ductwork
What your team can do, and what needs us
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, which is where we come in.
For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.