Essex · Air handling unit cleaning
Air handling unit cleaning in East Mersea, Essex
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for commercial sites in East Mersea and across Essex. CHAS, SafeContractor and ISO 9001, and fully insured.
- Blocked condensate drains and slimy trays
- Intake sections clogged with outdoor debris
- Units that have only ever had filter changes
AHU cleaning in East Mersea, done properly
Heating and cooling coils trap dust that gets past the filters. A coated coil restricts airflow and makes the unit work harder. Coils are cleaned carefully, with methods chosen so the fins are not flattened. If you have debris and leaves in the fresh air intake and dust built up on fan impellers, we can help, from internal panels, heating and cooling coils and drain trays onwards.
In rural areas, ventilation units are often in roof voids or outbuildings, which makes them easy to overlook.
A written report with photos follows every visit, so there’s a dated record of the work. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Where
- East Mersea (CO5)
- Region
- Essex
- Reporting
- Report and photos after the visit
- Price
- Fixed quote, normally within a working day
- When we work
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Updated
- 30 October 2026
What your team can do, and what needs us
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but the parts you can’t 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.
East Mersea: your questions answered
Do you cover East Mersea for AHU cleaning?
Yes, we work in East Mersea and the places around it. You can call 0345 646 2711 or send us an email and let us know what needs doing.
Do you work overnight in East Mersea?
Yes, evening, overnight and weekend work is normal for us. The site is handed back ready to open. Your opening times are the first thing we ask for.
Do you clean the ductwork as well?
Yes, supply and extract ducts, grilles and diffusers. The survey shows whether the ducts need cleaning now.
Are you accredited?
We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we are fully insured.
What types of premises do you cover?
Any commercial site with kitchens or ventilation, from a small pub to a hospital. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
How much does AHU cleaning cost?
We do not publish prices, because the cost depends on the job: the size of the system, its condition, access and when we can work. We fix the price before work begins.
How long does it take to clean an air handling unit?
Expect it to take half a day to a full day per unit, with large plant planned over several shifts. Size, layout and how dirty it is decide the rest, and we’ll confirm the time when we quote.
Are you insured?
Yes. Full insurance covers our work and have been trading since 2009.
Between visits
Here’s the after-treatment advice, short and simple:
- Store the TR19 paperwork where auditors can find it
- Report stiff or damaged access doors
- Report musty smells from the vents right away
- Stick to the filter change plan
Keep filter changes on schedule between cleans, as that does more than anything to keep the unit clean. Log every change so it’s easy to see when the next is due.
Make the drain tray part of every maintenance visit. A drain that’s cleared early never gets to the slime stage.
What affects the cost of AHU cleaning
The diagnosis comes before the price. The main factors are:
- Access, including roofs, risers and ceiling voids
- Travel, parking and unloading
- The size of the system
- Whether several sites go on one quote
The cost depends on the size of the system, what state it’s in and access to every part of it. We give you a fixed price before we start, so you know where you stand.
What we need to know
A few details help us quote accurately. When you get in touch, it helps to send:
- How we’d reach plant on a roof or in a plant room
- A few general shots of the system
- Any symptoms, from odd noises to smells or leaks
- Close-ups of filters, grilles, hatches or access panels
Some systems can be priced from pictures; others need a survey. 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.
What happens if it’s left?
Stuffy rooms and stale smells in a building in East Mersea can sometimes be traced back to the AHU. Cleaning it deals with the cause rather than the symptom. Equipment tucked in a roof space or outbuilding near East Mersea rarely gets looked at unless someone books it.
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. You will have a fixed price before we start.
Why choose Duct Doctor in East Mersea
- Work around your opening hours, with 24/7 emergency cover
- Fully insured
- Photo reports with every job
- CHAS and SafeContractor accredited, with ISO 9001
See our cost guide and our accreditations.
What happens on the day
The visit has three parts: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with photos. Most of the time goes on the work itself, which takes anything from half a day for one small unit to several shifts for a plant room full of them. If the van will struggle with a lane or gateway near East Mersea, let us know and we’ll plan around it.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Getting ready for the visit
- Tell us where we can park and unload
- Make sure equipment near the work can be switched off and left to cool
- Let us know when the site is closed or quiet
How to get a quote
The quickest way to a quote is to send pictures: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
Related advice
Towns and villages near East Mersea
What else we do in East Mersea
AHU cleaning in East Mersea: local notes
We cover East Mersea, about 50 miles from central London, as part of our work across London and the South East. Evening, overnight and weekend visits are all possible.
An inspection comes first for any ventilation job around East Mersea, so the cleaning matches what’s there.
East Mersea is about 7 miles west of Clacton-on-Sea, in Essex. Every kind of commercial site in East Mersea, AHU cleaning is something we can help with. We can work out of hours so the site keeps running. Across Essex, we cover 644 places, East Mersea among them. You can also see our page for Chelmsford, about 22 miles away.
Every address in CO5 is within our area for AHU cleaning, from busy streets to back roads. Local streets include East Road, Shop Lane and Broman's Lane, and we cover them all for AHU cleaning. Other places close to East Mersea include Barrow Hill (2 miles west), Brightlingsea (2 miles north-east), Point Clear (2 miles east), West Mersea (3 miles west) and Lee-over-Sands (3 miles south-east). Within a short drive, we also cover Colchester (8 miles north-west), Clacton-on-Sea (7 miles east), Maldon (14 miles west), Witham (15 miles west), Harwich (15 miles north-east) and Camulodunum (8 miles north-west).
Around East Mersea
We work in commercial kitchens and buildings around Dog And Pheasant Public House and the streets around them. East Mersea’s nearest station is Alresford station, roughly 4.2 miles north of the centre. Open spaces near East Mersea include Fingringhoe Wick.
Multi-site and managed buildings
If you look after several sites, we can schedule visits across all of them on one quote. Every building has its own written report, so each one has its own record.
From a single site to a large estate, the standard is the same: a survey first, a fixed quote, the work timed around the site and a report with photos.
When to call us in East Mersea
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. Most of it lands at the intake and the first stage of filters, and the finer material travels on.
Clients usually contact us when they notice something like this:
- Intake sections clogged with outdoor debris
- Units needing a clean before a new tenant or handover
- Filters that are clogged or overdue
- Dirty coils holding back the airflow
In East Mersea, supply and extract ducts are cleaned along with the units that serve them.
What to look for in a quote
- Whether the price is fixed
- What hours they’ll be on site
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- What records you will receive afterwards