Kent · Air handling unit cleaning
Air handling unit cleaning in Kennington, Kent
AHU cleaning in Kennington, surveyed first and signed off with a written report and photos. Ask us for a fixed quote.
- Dirty coils holding back the airflow
- Plant that has been serviced but not cleaned
- Fan sections that haven’t been cleaned in years
What AHU cleaning cannot fix
We won’t sell you work that does not address the problem, so these are the things it will not cover:
- Ventilation that was badly designed in the first place
- Coils that are corroded or leaking and need replacing
- The supply and extract ducts, quoted separately
If in doubt, give us a ring on 0345 646 2711 or send us an email and we will say what we think.
What we work on in Kennington
- Drain trays
- Filter sections
- Dampers and louvres
- Supply and extract fans
- Internal panels
- Heating and cooling coils
AHU cleaning for kitchens and businesses in Kennington
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 have dust built up on fan impellers and air handling units due a clean after building work, we can put it right, from supply and extract fans, internal panels and heating and cooling coils onwards.
In a place like Kennington, air handling units are often tucked into roof spaces or small plant rooms, where they’re easy to forget. Filters, coils and drain trays need attention whatever the size of the unit.
Duct Doctor has been trading since 2009, as 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.
- Where
- Kennington (TN24, TN25)
- Region
- Kent
- Reporting
- Photo report after each visit
- Quote
- A fixed price before work begins
- Hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
How it works
We are used to working while the site is closed. A lot of visits happen overnight or at weekends, so the site can open as normal afterwards. On site, the work takes one overnight shift for many single units, with bigger plant phased. Visits to a place like Kennington are planned ahead, so we arrive with what the survey says the job needs.
- 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 are dealt with as agreed, and the coils, fan and casing cleaned.
- We clean out the drain tray and make sure it drains.
- You get a TR19® certificate and a photo report.
Getting ready for the visit
- Arrange a key holder or contact on site
- Tell us the best time to work, such as after service or at a weekend
- Clear the space around the work
Get a fixed quote
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, you get a fixed price before work begins.
Advice
Questions from Kennington
Will you come out to Kennington?
Yes, smaller places are covered as well as towns. Let us know about access, parking and anything unusual about getting there when you book.
Do you clean school ventilation in Kennington in the holidays?
Yes. The holidays are the usual time for school work. The FSA’s register shows about 9 schools and colleges with food registrations within roughly a mile and a half of Kennington. Just phone us on 0345 646 2711 or drop us a line with your term dates and we will plan around them.
How long does an AHU clean take?
As a guide, it takes half a day to a full day per unit, with large plant planned over several shifts. We plan the shutdown around that, out of hours if needed.
How much notice do you need?
That depends on the slot you want and the size of the job. Mention your preferred dates with your enquiry, and for anything urgent, ring our 24/7 emergency line.
Do you offer emergency callouts?
Yes. There’s a 24/7 emergency line, for problems that cannot wait. Call us any time and explain what’s happened.
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.
Which kinds of sites do you work on?
Any commercial site with kitchens or ventilation, from a small pub to a hospital. We work with hotels, schools, care homes, offices, retail and leisure sites.
Do you do ventilation duct cleaning too?
Yes, the ductwork, grilles and diffusers the unit serves. The survey shows whether the ducts need cleaning now.
Managing agents and facilities teams in Kennington
From a single site to a large estate, the standard is the same: diagnosis, a fixed price, work booked around your hours and a written report with pictures.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. With shared responsibility, good records help everyone.
When to call us in Kennington
Dirt in an AHU matters in two ways: the unit supplies the air people breathe, and a dirty unit has to work harder. For the people using the building every day, that’s the air they breathe for hours on end.
Clients typically contact us after spotting something like this:
- Odours coming through the supply air
- Air handling units due a clean after building work
- Plant that has been serviced but not cleaned
- Intake sections clogged with outdoor debris
Healthcare buildings such as William Harvey Hospital, about 2.1 miles south-east, depend on their ventilation; if you manage a surgery, clinic or care home near Kennington, yours matters too.
What your quote should include
- Whether the work can be done while the site is closed
- When the next visit should be, and why
- Whether the quote shows VAT
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
Between visits
Here’s the after-treatment advice, short and simple:
- File each AHU report in the maintenance log
- Watch for drips or damp patches near the plant
- Flag stale or damp smells in the supply air
- Diary the inspection date recommended in the report
Restart the unit with your site team or maintenance contractor once we have finished. Check the drain tray is emptying over the first few days to make sure it stays clear.
Regular filter changes are the best protection an AHU has. Overloaded filters let more dirt through to the coils and fan.
How the job changes from site to site
Rooftop and plant room units
Ceiling-mounted and compact units are cleaned too. We protect the area below before opening them.
Heating and cooling coils
A dirty coil holds back the air and makes heating and cooling less effective. A clean gets air moving through the coil properly again.
What AHU cleaning looks like in Kennington
There are about 9 schools, colleges and universities, about 15 hospitals, care homes and childcare premises and about 3 hotels and B&Bs on the FSA’s food hygiene register in and around Kennington, up to about a mile and a half out. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. The nearest hospital to Kennington is William Harvey Hospital, about 2.1 miles south-east. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. At about 48 miles from central London, Kennington sits well inside the area we cover. Visits are booked around your hours, evenings and weekends included.
For schools like Kennington Church of England Academy, the holidays are the usual time to inspect and clean ventilation.
Kennington is about 2 miles north-east of Ashford, in Kent. From the centre of Kennington to the outskirts, we cover AHU cleaning for every kind of premises, from small sites to large estates. Our Kent coverage runs to 922 places, Kennington among them. Our Maidstone page covers sites nearby, about 17 miles away.
Our technicians cover all of TN24 and TN25 for AHU cleaning and the roads nearby. AHU cleaning is available to premises on Park Road, York Road and Ball Lane and nearby roads. With the A28 close by, Kennington is simple for us to get to for AHU cleaning. Neighbouring places we cover for AHU cleaning include Bockhanger (1 mile south-west), Potters Corner (1 mile west), Boughton Lees (2 miles north), Godinton (2 miles south-west) and Willesborough (2 miles south). Further out, we also cover Canterbury (12 miles north-east), Sittingbourne (14 miles north-west), Folkestone (13 miles south-east), Whitstable (14 miles north-east), Faversham (10 miles north) and Hythe (11 miles south-east).
Local landmarks in Kennington
Locally, jobs take us to businesses close to Towers School and Sixth Form Centre, Conningbrook Lakes Country Park and The Rose Inn and the streets around them. The closest station to Kennington is Ashford International station, about 1.7 miles south. Nearby you will also find County Square (1.4 miles south-west) and William Harvey Hospital (2.1 miles south-east). Open spaces near Kennington include Hatch Park.
Places near Kennington
Other services in Kennington
In-house cleaning or a specialist?
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We’ll take a look and send 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.