Kent · Air handling unit cleaning
Air handling unit cleaning in Charing, Kent
AHU cleaning for Charing, from a team that has been trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Stale or musty smells from the ventilation
- Dust built up on fan impellers
- Blocked condensate drains and slimy trays
What we do, step by step
We’re used to working while the site is closed. Evenings, nights and weekends are when much of our work happens, so a kitchen or building can carry on as usual the next day. On site, the work takes anything from half a day for one small unit to several shifts for a plant room full of them. We plan the journey to Charing and bring what the job is likely to need.
- First we agree when the unit can be switched off, including evenings or weekends.
- Before cleaning, each section is photographed.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- After pictures are taken and the certificate issued.
Before we arrive
- Have your last certificate or report to hand
- Move anything stored near the system
- Make sure equipment near the work can be switched off and left to cool
Ask for a quote
Need a price for AHU cleaning? Please give us a ring on 0345 646 2711, or email photos with a few details about the site. We’ll talk you through the work and give you a fixed quote before you commit to anything.
Related advice
AHU cleaning in Charing, done properly
An AHU clean is a thorough examination and treatment of the unit. We look inside each section, clean what we find and record it with pictures, so the report shows exactly what was done. We are often asked to deal with air handling units never cleaned inside and odours coming through the supply air, on heating and cooling coils, filter sections and drain trays.
For a building near Charing, the visit is planned around how it’s used, and the journey is planned ahead. The work is the same as in any town: inspect, clean, record.
Duct Doctor has been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
- Location
- Charing (TN27)
- Wider area
- Kent
- Paperwork
- Written report with pictures
- Quotes
- A fixed price before we start
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
AHU cleaning around Charing
Going by the FSA’s register, there are about 4 schools, colleges and universities serving food across Charing and its immediate surroundings (about a mile and a half). Busy, occupied buildings like these are where clean supply air matters most. About 43 miles out from central London, Charing is part of the South East area we work across. A survey and a fixed quote come first, then the visit at a time that suits you.
For schools like Charing Church of England Primary School, the holidays are the usual time to inspect and clean ventilation.
Charing is about 6 miles north-west of Ashford, in Kent. Anywhere in TN27, we cover AHU cleaning for commercial sites. Our area takes in 922 places across Kent, large and small. Maidstone is in our area too, about 12 miles from Charing.
Our technicians cover all of the TN27 postcode area for AHU cleaning and the roads nearby. That includes premises on The High Street, Market Place and Station Road and nearby roads. We also cover the places around Charing: Charing Heath (1 mile west), Cold Harbour (2 miles north-west), Lenham Heath (2 miles west), Stonebridge Green (2 miles west) and Lenham Forstal (3 miles west). We also work in nearby towns such as Maidstone (12 miles west), Ashford (6 miles south-east), Canterbury (13 miles east), Sittingbourne (9 miles north), Whitstable (14 miles north-east) and Faversham (8 miles north-east).
Local landmarks in Charing
Typical jobs here are in premises near Spuckles and Kennelling Woods and King's Head Public House and the streets around them. Charing has its own railway station: Charing station. Nearby you will also find Coldbridge Castle (4.3 miles west).
Between visits
Simple habits between visits make a real difference. We recommend:
- File each AHU report in the maintenance log
- Watch for drips or damp patches near the plant
- Keep the area around the fresh air intake clear
- Check the drain tray is emptying during routine visits
Once the clean is done, we send a TR19® certificate and a report with before and after photos. They belong in the plant or maintenance log.
Make sure access doors and panels on the unit open easily. Sections that are awkward to open are the ones that get skipped.
When to call us in Charing
It matters for two reasons: the unit supplies the air people breathe, and a dirty unit has to work harder. For anyone working, learning or staying in a building in Charing, that is air they breathe for hours at a time.
Clients normally contact us when they notice one of these:
- Air handling units never cleaned inside
- Units needing a clean before a new tenant or handover
- Odours coming through the supply air
- Dust built up on fan impellers
If you manage shops or offices close to Charing station, a TR19® Air inspection shows whether the ductwork needs cleaning.
Comparing quotes
- Which accreditations they hold, and whether you can check them
- Whether a written report and pictures are included
- Whether a survey comes first
- What happens if part of the system cannot be accessed
In-house cleaning or a specialist?
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.
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We’ll take a look and send you a fixed quote.
Different parts, different methods
Internal casing and panels
Loose or damaged linings inside a unit can break up into the airstream. We note any we find in the report.
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. Cleaning restores the open path through the fins.
When it’s something else
An honest diagnosis matters more to us than a booking, so here’s what AHU cleaning will not do:
- Faulty motors, drives or bearings
- Ductwork downstream of the unit, which is a separate clean
- Building management system faults
Not sure which it is? You can call 0345 646 2711, or email photos and we’ll tell you honestly before you book.
What we work on in Charing
- Internal panels
- Dampers and louvres
- Supply and extract fans
- Filter sections
- Drain trays
- Heating and cooling coils
What affects the quote in Charing
The diagnosis comes before the price. We look at:
- When the work can happen, such as evenings, overnight or weekends
- The condition of the system
- How many systems or sites are involved
- Site requirements such as sign-in and permits
A single site or a whole portfolio, the quote is built the same way: what needs doing, how we get to it and when. You’ll have a fixed price before any work starts.
What we need to know
A few details help us quote accurately. When you get in touch, it helps to send:
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Any symptoms, from odd noises to smells or leaks
- The site address and the type of premises
- Any access panels or hatches you can see
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 many jobs can be priced from that alone.
Common questions in Charing
Can a school’s ventilation in Charing be done out of term time?
Yes. Half-terms and the summer break are the natural time for school work. The FSA’s register shows about 4 schools and colleges with food registrations within roughly a mile and a half of Charing. Send us your term dates when you call us on 0345 646 2711, or send details by email, and we will fit the work in.
Do you work overnight in Charing?
Yes, nights and weekends are routine for us. The work in Charing can fit around your hours. Your opening times are the first thing we ask for.
Is there a report after cleaning?
Yes. A TR19® certificate and photo report are sent after the clean, with any faults we noticed.
Can we book visits on a schedule?
Yes. Scheduled maintenance plans are part of what we do, with visits at the interval your system needs. The report from each visit recommends the next date.
What do you do to protect the area?
We cover floors and nearby surfaces with sheeting before we start, and waste is contained as we go. Before we leave, we tidy up and clean down.
What do you clean inside the unit?
The main parts are the filters, coils, drain tray, fan and inside of the casing. The survey confirms what’s in your unit before we quote.
Can you price the work without visiting?
Yes, where the pictures show enough. If not, a site survey comes first, and the quote follows that.
Can one contract cover all our sites?
Yes. We work across South East England and London, so sites at different addresses can be planned together on one programme. Each site gets its own report and photos.