Kent · Air handling unit cleaning
AHU Cleaning in Chilham
Air handling unit cleaning for commercial sites in Chilham and across Kent. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Debris and leaves in the fresh air intake
- Plant that needs cleaning after a refit
- Blocked condensate drains and slimy trays
About our AHU cleaning in Chilham
A cooling coil drips condensate into a tray that should drain away. When the drain blocks, water sits there and the tray turns slimy, right in the path of the air going into the building. Clearing and cleaning the tray is central to every AHU clean. The work covers supply and extract fans, internal panels and drain trays, and common reasons people get in touch are fan sections that haven’t been cleaned in years and rooms that smell stuffy when the system runs.
For a building in or near Chilham, access is agreed in advance and the visit is planned around the journey.
Nothing is signed off by word of mouth: a written report, dated and illustrated with pictures, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. It shows what was done and what, if anything, couldn’t be reached.

- Place
- Chilham (CT4)
- Region
- Kent
- Records
- Report and photos after the visit
- Quotes
- A fixed quote up front
- Working hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Your questions about AHU cleaning in Chilham
Do you cover smaller places like Chilham?
Yes, Chilham is part of our area, however small the site. Photos of the system and directions to the site help us plan the visit.
Can you do AHU cleaning in Chilham?
Yes. We work across London and the South East, and Chilham is part of that. Just call 0345 646 2711, or send details by email with a few details of the site.
Do you survey before quoting?
Yes, every time. We diagnose before we treat: the survey shows what needs doing and what access we need, and the quote is based on that.
How often should an air handling unit be cleaned?
Inspection under TR19® Air decides it. Units in heavy use or in sensitive buildings may need attention more often.
How much does AHU cleaning cost?
Size, condition, access and working hours all affect the cost. Call for a fixed quote and we’ll typically reply within one working day.
How do you protect the area?
By covering it before any work starts. We keep the work contained and clean down when we finish.
What about areas you can’t get to?
Anything we can’t reach goes on the report, with a note of where it is, and we explain what access is needed, for example new access panels.
Are you fully insured?
Yes. Duct Doctor is fully insured, and the details are available on request.
Other services in Chilham
How the visit works
We work around your opening hours, not the other way round. We book the visit for a time the area is closed, whether that is an evening, overnight or a weekend. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the job takes half a day to a full day per unit, with large plant planned over several shifts. We agree a date with you, plan the drive to Chilham and turn up when the site is quiet.
- We survey the unit from photos or on site and agree what’s included.
- The unit is shut down with your site team and the area protected.
- Filters, coils, fan section and casing are cleaned in turn.
- Drain trays are cleared and cleaned and the outlet checked.
- You get a TR19® certificate and a photo report.
Preparing for the visit
- Let us know when the site is closed or quiet
- Name a contact who can let us in at the agreed time
- Let us know how we reach the system, including roofs, risers and plant rooms
Getting a quote
Need a price for AHU cleaning? Please ring 0345 646 2711 or use the quote form with a few details about the site. We will talk you through the work and give you a fixed quote before you commit to anything.
Read more
How we price AHU cleaning
The quote reflects the site in front of us. We take into account:
- Whether it’s a one-off visit or part of a schedule
- Whether several sites go on one quote
- Travel, parking and unloading
- The size of the system
Putting the work off seldom saves money. Problems in a system tend to grow, which can make the next visit longer. If you are not sure what’s needed, give us a ring on 0345 646 2711, or send details by email and we will give you an honest view and a fixed quote.
What we need to know
Before you ask for a quote, gather:
- Wide photos of the system and the area around it
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Any access panels or hatches you can see
- The postcode and the type of business
We do not publish a price list, because no two systems are the same. Instead, we look at your site first, from photos or a survey, and then send you a fixed quote. To start, ring 0345 646 2711 or send us an email.
AHU cleaning around Chilham
At about 49 miles from central London, Chilham sits well inside the area we cover. We work evenings, overnight and at weekends, so the visit fits around the site. Kent and Canterbury Hospital is the nearest hospital, about 5.3 miles east of Chilham. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital.
Healthcare buildings such as Kent and Canterbury Hospital, about 5.3 miles east, depend on their ventilation; if you manage a surgery, clinic or care home near Chilham, yours matters too.
Chilham is about 5 miles south-west of Canterbury, in Kent. Chilham gets the same approach as every site we work on: diagnosis first, a fixed price, out-of-hours working where needed and a written report with photos. Chilham is one of 922 places in Kent we cover for AHU cleaning. Maidstone is in our area too, around 19 miles away.
Our technicians cover all of the CT4 postcode area for AHU cleaning and the roads nearby. Whether your site is on The Street, The Square and Bagham Road or anywhere close by, our technicians can take on the work. Other places close to Chilham include Mountain Street (1 mile south-west), Old Wives Lees (1 mile north), Godmersham (2 miles south), Shottenden (2 miles west) and Perrywood (2 miles north-west). We also work in nearby towns such as Ashford (8 miles south-west), Canterbury (5 miles north-east), Sittingbourne (12 miles north-west), Folkestone (14 miles south-east), Whitstable (8 miles north) and Faversham (6 miles north-west).
Landmarks near Chilham
Typical jobs here are in premises near Woolpack Inn and Broadham Down. There’s a railway station in Chilham itself: Chilham station. Nearby you will also find Kent and Canterbury Hospital (5.3 miles east) and Chilham Castle (less than half a mile west). The countryside around Chilham includes Blean Woods RSPB Reserve.
Common problems we fix in Chilham
Dirt in an AHU matters in two ways: air quality, since the unit feeds occupied rooms, and performance, since dirt makes it strain. For the people using the building every day, that is the air they breathe for hours on end.
If you notice any of these, it’s worth a diagnosis:
- Debris and leaves in the fresh air intake
- Dust built up on fan impellers
- Dust-coated heating and cooling coils
- Rooms that smell stuffy when the system runs
For workplaces around Chilham station with mechanical ventilation, cleaning can be done in the evening or at weekends.
What your quote should include
- What’s included in the scope, part by part
- Proof of accreditation you can verify
- What hours they’ll be on site
- How they set the interval to the next visit
Leave it or put it right?
When the unit is clean, less dirt reaches the ducts, so the ducts and grilles stay cleaner between cleans. It also means the next inspection has less to find. Systems in rural buildings are often out of sight and out of mind.
We do not list prices on the website, because the cost depends on the site in front of us. Call for a fixed quote, and we will explain what it covers.
What you get with us
- CHAS, SafeContractor and ISO 9001
- Every job surveyed first
- One contact for all your sites in London and the South East
- In business since 2009
Take a look at how cleaning jobs are priced and our accreditations and certificates.
Different parts, different methods
Filters
Every AHU relies on its filters to catch dust before it reaches the coils. We check them, and clean or change them as agreed in the quote, and the housing around them is cleaned too.
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.
Multi-site and managed buildings
Whether it’s one building or many, you get the same standard: a survey first, a fixed quote, the work timed around the site and a report with photos.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. With shared responsibility, good records help everyone.
In-house cleaning or a specialist?
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, they should report it rather than try to fix it. We’ll take a look and give you a fixed quote.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. That is our job.