Kent · Air handling unit cleaning
AHU Cleaning in Mersham
Looking for AHU cleaning in Mersham? We survey first, send you a fixed quote and work around your opening hours, finishing with a written report and photos.
- Drain trays holding standing water
- Units that have only ever had filter changes
- Odours coming through the supply air
About our AHU cleaning in Mersham
All the building’s air passes through the fan, so dust on its blades and housing ends up in the airstream. Fan, housing and the surrounding panels are cleaned as part of the job, with the unit switched off and made safe first. We’re often asked to deal with plant that needs cleaning after a refit and units that have only ever had filter changes, on internal panels, heating and cooling coils and drain trays.
In a village or hamlet like Mersham, few buildings have mechanical ventilation, but those that do need it inspected and cleaned like any other.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we are fully insured. We’re also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.
- Place
- Mersham (TN25)
- Wider area
- Kent
- Reporting
- Written report with photos
- Quote
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
Staff cleaning versus specialist work
Staff cleaning doesn’t replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.
Staff cleaning and specialist work are not the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
Places near Mersham
Other services in Mersham
Your questions about AHU cleaning in Mersham
Is AHU cleaning available in Mersham?
Yes, Mersham is within the area we cover across London and the South East. You can ring 0345 646 2711 or drop us a line and tell us what needs doing.
Do you work at weekends in Mersham?
Yes. We work evenings, overnight and at weekends. The work in Mersham can fit around your hours. Let us know the hours you’re closed and we will book within them.
Can you look after several sites?
Yes. Send the list of sites and the work at each and you’ll get one fixed quote.
Do you have a 24/7 line?
Yes. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line, and we’ll advise on what to do next.
What is TR19?
TR19® is BESA’s specification for ventilation hygiene. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Are you fully insured?
Yes, we’re fully insured. We also hold CHAS and SafeContractor, for sites that check contractor safety.
What information do you need?
Just the basics: the address, the site type, your opening hours and how we reach the system. Photos and the last report help too. After that, simply phone us on 0345 646 2711, or email photos.
Can you quote from pictures?
Yes, for many jobs. Send a few wide pictures plus close-ups of panels, filters or grilles, and a fixed quote usually follows within one working day. If pictures aren’t enough, we’ll survey first.
Landlords, agents and facilities managers
Running several sites is easier with one contractor. We cover South East England and London, so a run of sites can go into one programme and kept to a regular schedule.
Keeping records across a portfolio is half the battle. Each visit produces a dated report with photos, so you can show an insurer or inspector what was done at each site.
What affects the quote in Mersham
We don’t publish a price list, because no two systems are the same. What we look at:
- The size of the system
- What state the system is in
- The number of sites or systems
- How easy every part is to reach
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 to send for a quote
When you contact us, these details help:
- The site address and the type of premises
- The roof, plant room or outside wall the system runs to
- A few general shots of the system
- Close-ups of filters, grilles, hatches or access panels
If you need AHU cleaning in Mersham, phone us on 0345 646 2711, or send details by email. Let us know the site type and the opening hours, and send pictures or your last report if you can. A fixed quote normally follows within one working day.
Different parts, different methods
Filters
Dirty filters cut airflow and let dirt slip past their frames. The filter section is cleaned so new or cleaned filters sit properly.
Rooftop and plant room units
Smaller units in ceiling voids are part of the work as well. We protect the area below before opening them.
Between visits
After the visit, a few habits help the work last:
- Make sure condensate is draining away
- Report water on the plant room floor
- Change filters on schedule and log each change
- File each AHU report in the maintenance log
You receive a TR19® certificate and a photo report after the clean. Keep both with the building’s maintenance records.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air, rather than waiting for a problem.
Ventilation in Mersham buildings
Food Standards Agency data includes about 3 caring premises (care homes, nurseries and hospitals) within 1.5 miles or so of the middle of Mersham. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. Mersham is about 52 miles from central London, well within the area we cover across London and the South East. Visits are booked around your hours, evenings and weekends included. The nearest hospital to Mersham is William Harvey Hospital, about 1.7 miles north-west. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
If you run a surgery, dental practice or care home near Mersham, clean ventilation matters as much to you as to a hospital like William Harvey Hospital (about 1.7 miles north-west). School buildings such as Mersham Primary School are typically done in the holidays, so classrooms are not disturbed.
Mersham is about 3 miles south-east of Ashford, in Kent. Every kind of commercial site in Mersham, we can take on AHU cleaning. We can work out of hours so trading isn’t interrupted. Our area takes in 922 places across Kent, from busy centres to quieter spots. For sites nearby, see our Maidstone page, about 20 miles away.
All of TN25 is covered for AHU cleaning, from busy streets to back roads. We cover sites on Church Road, The Street and Church Close and nearby roads. We also cover Sevington (1 mile north-west), South Stour (1 mile south-west), Ridgeway (1 mile east), Hinxhill Park (2 miles north) and Smeeth (2 miles east). Larger places within reach include Ashford (3 miles north-west), Canterbury (13 miles north-east), Folkestone (11 miles east), Faversham (14 miles north), Hythe (7 miles south-east) and Davington (14 miles north).
Around Mersham
We work in commercial kitchens and buildings around The Farriers Arms and Poulton Wood and the streets around them. Mersham’s nearest station is Ashford International station, roughly 2.9 miles north-west. Well-known places in the area include Ashford Designer Outlet (2.6 miles north-west) and William Harvey Hospital (1.7 miles north-west). Not far away are Hatch Park.
What happens on the day
Your staff don’t need to do much on the day. A contact on site lets us in at the agreed time and points us to the system, and we take it from there. Afterwards, the area is left tidy and the written report follows. Visits to a village like Mersham are booked in advance, at a time that suits whoever runs the site.
- We agree a shutdown window that suits the building.
- We take before photos of each section of the unit.
- We work through the unit from the intake to the outlet.
- The fan and drain tray are cleaned and the drain checked.
- After pictures are taken and the certificate issued.
Preparing for the visit
- Move anything stored near the system
- Mention any parking or loading restrictions
- Let us know how we reach the system, including roofs, risers and plant rooms
How to get a 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 photos, get a survey first. Either way, you get a fixed price before any work starts.
Advice
Why deal with it now?
Cleaning a unit while it only has light dust is quick. Years of build-up make the job longer and harder, particularly where damp has made it stick. Out of sight is the usual reason a rural system goes too long without attention.
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we will go through it with you.
Why choose Duct Doctor in Mersham
- Full insurance on every job
- Evenings, overnight and weekends, plus 24/7 emergency callout
- A written report with photos after each visit
- CHAS, SafeContractor and ISO 9001
Read our cost guide and how to check a contractor.