Kent · Air handling unit cleaning
Sissinghurst AHU cleaning
Specialist AHU cleaning for Sissinghurst: diagnosis first, then a fixed quote, the work and a report with pictures. Call for a fixed quote.
- Dirty coils holding back the airflow
- Units needing a clean before a new tenant or handover
- Air handling units with blocked filters
The process
There are three stages on the day: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, while signing off means the written report and pictures. Most of the time goes on the work itself, which takes a single shift for a typical unit, longer for large or heavily soiled ones. Pictures of the system and its access let us plan the work in Sissinghurst before we set off.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before pictures of each section of the unit.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- The fan and drain tray are cleaned and the drain checked.
- We take after pictures and issue the certificate and report.
Getting ready for the visit
- Let us know when the site is closed or quiet
- Clear loose items from the work area
- Mention any sign-in, permit or induction we need
How to get a quote
Quotes are quick. Call or email with a few details and you’ll usually have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.
Related advice
How we handle AHU cleaning in Sissinghurst
Coils are where a lot of the dirt ends up. Dirt on the fins holds back air and makes the unit work harder to do the same job. We clean coils with methods suited to their condition, taking care not to damage the fins. If you’re dealing with units that have only ever had filter changes and fan sections that haven’t been cleaned in years, we can put it right, from filter sections, drain trays and dampers and louvres onwards.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, which makes them easy to overlook.
For insurers and inspectors, the record counts. 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.
- Where
- Sissinghurst (TN17)
- Region
- Kent
- Records
- Report and pictures after the visit
- Quote
- A fixed quote up front
- When we work
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Why it’s worth doing now in Sissinghurst
When the unit is clean, less dirt reaches the ducts, so the ducts and grilles stay cleaner between cleans. That makes the next inspection of a building in Sissinghurst simpler. A fault that closes a site in a village like Sissinghurst affects everyone who depends on it.
The price reflects the work, not guesswork. That’s why we survey first, from photos or on site, and why the quote is fixed before we start.
Why choose Duct Doctor in Sissinghurst
- A single point of contact for sites across the South East and London
- Photo reports with every job
- We’re fully insured
- A fixed price before any work starts
Take a look at what affects the cost or our accreditations and certificates.
Between visits
So the system stays in good health:
- Keep filter changes on time and recorded
- File each AHU report in the maintenance log
- Make sure condensate is draining away
- Keep the area around the fresh air intake clear
The report shows each section of the unit before and after, along with anything we couldn’t reach. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Make the drain tray part of every maintenance visit. A drain that is cleared early never gets to the slime stage.
Sissinghurst: your questions answered
Can a school’s ventilation in Sissinghurst be done out of term time?
Yes, holiday work suits schools best. Around Sissinghurst, the Food Standards Agency lists about 4 schools and colleges with registered kitchens within a mile and a half or so. Booking early in the term gives the best choice of holiday dates.
Do you work overnight in Sissinghurst?
Yes, out-of-hours work is a big part of what we do. It means the site in Sissinghurst keeps running as normal. When you call us on 0345 646 2711 or send us an email, mention when the site is quiet.
Do you offer emergency callouts?
Yes, 24/7. Our office is open from 8am to 6pm on weekdays, and the emergency line covers the rest.
Which parts of an air handling unit do you clean?
The main parts are the filters, coils, drain tray, fan and inside of the casing. We confirm the scope after looking at the unit.
When should our AHU next be cleaned?
That’s set by inspection, in line with TR19® Air. A hard-working unit, or one serving a hospital or care home, may need cleaning more often.
Do you do ventilation duct cleaning too?
Yes. Ventilation ductwork cleaning to TR19® Air is part of what we do. It’s often worth doing both at once, and we can quote for both.
Will we get paperwork for the AHU clean?
Yes. Every clean comes with a TR19® certificate and a photo report. Keep them in the maintenance log.
What does TR19 mean?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Staff cleaning versus specialist work
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, it’s best reported rather than tackled in-house. We will take a look and give you a fixed quote.
A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. Leave those to us.
When something else is needed
In fairness, some problems need a different fix:
- The supply and extract ducts, quoted separately
- Faulty motors, drives or bearings
- A system that’s undersized for the building
If in doubt, phone us on 0345 646 2711 or drop us a line and we will say what we think.
Where we work
- Supply and extract fans
- Drain trays
- Internal panels
- Heating and cooling coils
- Dampers and louvres
- Filter sections
Sissinghurst buildings and their air
Going by the FSA’s register, there are about 4 schools, colleges and universities serving food across Sissinghurst and its immediate surroundings (about a mile and a half). Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. Sissinghurst is about 39 miles from central London, well within the area we cover across London and the South East. The visit is fixed around your opening hours, not ours. The nearest hospital to Sissinghurst is Benenden Hospital, about 3.1 miles south-east. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
Classrooms and halls at schools such as Cranbrook School are easiest to work in when pupils are away.
Sissinghurst is about 11 miles south of Maidstone, in Kent. If you need AHU cleaning in Sissinghurst, please phone us on 0345 646 2711 or use the quote form for a fixed quote. Our area covers London and the South East, Sissinghurst included. Sissinghurst is one of 922 towns, villages and districts in Kent where we work for AHU cleaning. For sites nearby, see our Maidstone page, about 11 miles away.
Every address in TN17 is within our area for AHU cleaning, from busy streets to back roads. AHU cleaning is available to premises on The Street, Milkhouse Cottages and Cobnut Close and the roads around them. Close by, we work in Wilsley Pound (1 mile west), Cranbrook Common (1 mile north), Wilsley Green (1 mile south-west), Knox Bridge (2 miles north) and Colliers Green (2 miles west). Further out, we also cover Maidstone (11 miles north), Ashford (14 miles east), Royal Tunbridge Wells (13 miles west), Tonbridge (14 miles north-west), Kings Hill (13 miles north-west) and Foley Park (12 miles north).
Local landmarks in Sissinghurst
Around Sissinghurst, our work takes us to kitchens and buildings near Crane Valley and The Bull Public House and the streets around them. The nearest railway station is Staplehurst station, roughly 4.3 miles north. Other landmarks nearby include Sissinghurst Castle (1.1 miles east) and Benenden Hospital (3.1 miles south-east).
Common problems we fix in Sissinghurst
Wherever there’s a cooling coil, there’s condensate. A blocked outlet or a badly sloped tray leaves standing water, and slime and smells soon follow.
Any of these means the system needs a check-up:
- Stale or musty smells from the ventilation
- Units that have only ever had filter changes
- Dirty fans and fan housings
- Dirty filters cutting the airflow
Benenden Hospital, about 3.1 miles south-east, is the nearest hospital to Sissinghurst, and healthcare sites of every size need their supply air kept clean.
Comparing quotes
- When the next visit should be, and why
- How areas they can’t reach will be recorded
- Whether the whole system is included, or only the parts that are easy to reach
- What insurance they carry
Also near Sissinghurst
Other services in Sissinghurst
What affects the quote in Sissinghurst
The quote reflects the site in front of us. We consider:
- Where the site is and how we reach it
- The size of the system
- Whether it’s a one-off visit or part of a schedule
- What state the system is in
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Call for a fixed quote and we’ll explain each part.
Asking for a quote
When you contact us, it’s useful to have:
- Where the site is and what kind of site it is
- Close-ups of filters, grilles, hatches or access panels
- A few general shots of the system
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
Need a price for AHU cleaning? Please call 0345 646 2711 or send us an email and tell us about the site. We will explain what we’d do and send a fixed quote before anything is booked.