Kent · Air handling unit cleaning
Air handling unit cleaning in Cobham, Kent
Need AHU cleaning in Cobham? We diagnose first, fix the price and book the work around your hours, then sign off with a report and photos.
- Units that have only ever had filter changes
- Drain trays holding standing water
- Intake sections clogged with outdoor debris
About our AHU cleaning in Cobham
The fan pushes every bit of air in the system, so dust on its blades and housing ends up in the airstream. We clean the fan section along with the rest of the unit, with the unit switched off and made safe first. We’re often asked to deal with intake sections clogged with outdoor debris and units needing a clean before a new tenant or handover, on internal panels, heating and cooling coils and dampers and louvres.
In a village or hamlet like Cobham, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
We have been trading since 2009, and we are 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
- Cobham (DA12)
- Wider area
- Kent
- Paperwork
- Written report with photos
- Quotes
- Fixed quote, typically within a working day
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
What staff can safely do
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, and that is where we come in.
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
Towns and villages near Cobham
Also in Cobham
Questions from Cobham
Do you do school ventilation cleaning in Cobham in the summer holidays?
Yes, holiday work suits schools best. There are about 4 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Cobham. Booking early in the term gives the best choice of holiday dates.
Can you get to a site in Cobham?
Yes. Cobham is within the area we cover across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you offer emergency callouts?
Yes, any time. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line and we’ll talk you through the next steps.
How do you keep the site clean during the work?
Floors and surfaces near the work are sheeted before we start, and anything we remove is contained. At the end, the area is cleaned down.
Are you fully insured?
Yes. Duct Doctor is fully insured, and we can share the details when you need them.
Which sectors do you work in?
All kinds of commercial and public premises: from restaurants, pubs and hotels to schools, hospitals, care homes, offices, shops and food production sites. We fit the work around how the site operates.
What accreditations do you have?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We are fully insured and have been trading since 2009.
Do you look at the system first?
Yes. We always survey first, either from photos and details you send or on a site visit. Then you get a fixed quote.
Why act early in Cobham
Dirty coils and fans make the unit strain to move the same air. The result is extra wear and a building that does not feel as comfortable, and a planned clean is far less disruptive than a breakdown. In a small place like Cobham, a system that fails can take a site out of use.
Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, which can make the next visit longer. If you’re not sure what’s needed, give us a ring on 0345 646 2711 or send us an email and we will give you an honest view and a fixed quote.
Why Cobham businesses choose us
- Full insurance on every job
- Trading since 2009
- Out-of-hours work and a 24/7 emergency line
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
See what affects the cost or our accreditations and certificates.
Fixed quotes for AHU cleaning in Cobham
Before we fix a price, we need to know a few things. We check:
- The number of sites or systems
- When the work can happen, such as evenings, overnight or weekends
- Parking and loading at the site
- The scale of the work
The cost depends on the size of the system, the condition it’s in and access to every part of it. We give you a fixed price before any work starts, so you know where you stand.
Helping us quote
We can often survey from photos. Try to include:
- Photos showing the whole system and its surroundings
- Where the site is and what kind of site it is
- Any previous report or certificate
- Any symptoms, from odd noises to smells or leaks
Getting a quote does not take long. Call or email with a few details and you will normally have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.
When to call us in Cobham
It matters for two reasons: air quality, since the unit feeds occupied rooms, and performance, since dirt makes it strain. For anyone working, learning or staying in a building in Cobham, that is air they breathe for hours at a time.
Signs it’s time to call us include:
- Rooms that smell stuffy when the system runs
- Drain trays holding standing water
- Air handling units never cleaned inside
- Fan sections that haven’t been cleaned in years
If you manage a school such as Cobham Primary School, ventilation cleaning is best booked for the holidays.
Before booking anyone
- If the quote is a fixed price or an estimate
- If they look at the system before pricing
- Whether the whole system is included, or only the parts that are easy to reach
- Whether VAT is included
Different parts, different methods
Drain trays
Condensate from the coil drips into a tray beneath it. Standing water and slime are removed and the outlet is checked.
Fans and fan sections
Before the fan is touched, the unit is shut down and made safe in agreement with the site.
AHU cleaning around Cobham
Food Standards Agency data includes about 4 schools, colleges and universities in and around Cobham, up to about a mile and a half out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Gravesham Community Hospital is the nearest hospital, about 3.9 miles north-west of Cobham. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. Cobham is about 23 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.
Healthcare buildings such as Gravesham Community Hospital, about 3.9 miles north-west, depend on their ventilation; if you manage a surgery, clinic or care home near Cobham, yours matters too.
Cobham is about 3 miles south of Gravesend, in Kent. If you need AHU cleaning in Cobham, please phone us on 0345 646 2711 or use the quote form for a fixed quote. Our area covers London and the South East, including Cobham. Our Kent coverage runs to 922 places, Cobham among them. Maidstone is in our area too, about 10 miles from Cobham.
Postcode districts we cover here for AHU cleaning: DA12. Whether your site is on The Street, Lawrence Drive and Cobhambury Road or a nearby road, we can help. Other places close to Cobham include Upper Bush (2 miles south-east), Lower Bush (2 miles south-east), Cuxton (2 miles south-east), North Halling (3 miles south-east) and Upper Halling (3 miles south). We also work in nearby towns such as Maidstone (10 miles south-east), Sittingbourne (15 miles east), Dartford (8 miles north-west), Sevenoaks (12 miles south-west), Gravesend (3 miles north) and Tonbridge (14 miles south).
Near you in Cobham
In Cobham, that means kitchens and buildings near Thamesview School, The Ship Inn and Jeskyns. Cobham’s nearest station is Sole Street station, about 1.2 miles south-west of the centre. Nearby you will also find Rochester Castle (4.3 miles east) and Gravesham Community Hospital (3.9 miles north-west). The countryside around Cobham includes Gad's Hill and Ranscombe Farm.
When something else is needed
We’d rather tell you now than book work that won’t help, so here are the limits:
- Controls and BMS settings that run the unit
- Coils that are corroded or leaking and need replacing
- Ductwork downstream of the unit, which is a separate clean
Not sure which it is? You can phone us on 0345 646 2711 or use the quote form and we will tell you honestly.
Where we work
- Supply and extract fans
- Dampers and louvres
- Filter sections
- Heating and cooling coils
- Drain trays
- Internal panels
What happens on the day
At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. The visit takes a single shift for a typical unit, longer for large or heavily soiled ones. Seeing the system in pictures first means the trip to Cobham can be planned properly.
- We survey the unit from pictures or on site and agree what’s included.
- We arrange the shutdown with your staff and sheet the area.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Drain trays are cleared and cleaned and the outlet checked.
- We close up the unit and send the certificate and before and after pictures.
Preparing for the visit
- Clear the space around the work
- Allow time for equipment near the work to be turned off and cool down
- Tell us the best time to work, such as after service or at a weekend
Get a fixed quote
To get a fixed quote, phone us on 0345 646 2711, or email photos and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. We typically come back within one working day.