London and the South East

AHU Cleaning in Essex

From the largest town to the smallest village in Essex, our technicians can help with AHU cleaning. A fixed quote before we start, and a 24/7 emergency line.

AHU Cleaning across Essex

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AHU cleaning across Essex

Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Choose your town from the list to see local details, and call or email us for a quick quote.

Larger towns

What else we do in Essex

Postcode areas we cover

Our AHU cleaning service in Essex

If the units serving a building in Essex have only had filter changes for years, there may be dirt on the coils, fan and casing that nobody has looked at. A full AHU clean takes in the whole unit. We are often asked to deal with fan sections that haven’t been cleaned in years and air handling units with blocked filters, on filter sections, drain trays and heating and cooling coils.

At the end of the visit, someone from your team can look over the work with us. Anything we couldn’t reach or that needs attention is pointed out there and then, and it goes on the report too. All told, the work takes one overnight shift for many single units, with bigger plant phased.

First we agree when the unit can be switched off, including evenings or weekends.
We take before pictures of each section of the unit.
We work through the unit from the intake to the outlet.
We finish with the fan section and the drain tray.
We take after photos and issue the certificate and report.

What affects the price in Essex

Whatever the type of site, the quote works the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we’ll go through it with you.

Why businesses in Essex choose us

Full insurance on every job
One contact for all your sites in London and the South East
We diagnose before we treat
A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease

Get a fixed quote

Quotes are quick. Send a few details and photos, and we normally reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.

Around Colchester

Locally, jobs take us to businesses close to Church of St Peter, Bull Meadow and The Bay And Say Public House, among other places. Also close by are Colchester Sixth Form College (within half a mile north-west) and St John's Green Primary School (within half a mile south). There’s a railway station in Colchester itself: Colchester Town station. Well-known places in the area include Lion Walk (within half a mile south-east) and Essex County Hospital (within half a mile south-west). Open spaces near Colchester include Westhouse Wood.

AHU cleaning around Essex

Across Essex, from Colchester, Chelmsford and Basildon outwards, ventilation systems serve offices, schools, surgeries, hotels and care homes. The work starts with an inspection, and cleaning follows where it’s needed.

Essex is within the area we cover, which takes in London and the South East. Each job starts with a survey and a fixed quote. Near the coast in Essex, salt and damp speed up corrosion in fans, ducts and dampers, and corrosion is one of the things that can stop a fire damper closing.

Colchester: Healthcare buildings such as Essex County Hospital, about under half a mile south-west, depend on their ventilation; if you manage a surgery, clinic or care home near Colchester, yours matters too. If you manage offices or shops near Colchester Town station, their ventilation can be inspected and cleaned out of hours.

Why act early?

A clogged coil or dirty fan makes the unit work harder for the same airflow. The result is extra wear and a building that does not feel as comfortable, and a clean on your terms beats a breakdown on nobody’s.

Questions to ask before you book

Whether a survey comes first
Whether the whole system is included, or only the parts that are easy to reach
What happens if part of the system cannot be accessed
Whether the work can be done while the site is closed

In-house cleaning or a specialist?

Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.

Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, and that is where we come in.

What we are called out for in Essex

Dirt in an AHU matters in two ways: 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 Essex, that’s air they breathe for hours at a time.

It’s time to book a visit if you see:

Units needing a clean before a new tenant or handover
Plant that has been serviced but not cleaned
Dirty coils holding back the airflow
Dirty fans and fan housings

Keeping the system healthy

A little care between visits keeps the system in better shape. We recommend:

Look at the condensate drain whenever the unit is serviced
Make sure the unit’s access doors open easily
Diary the inspection date recommended in the report
Report water on the plant room floor

Once the clean is done, we send a TR19® certificate and a report with before and after pictures. They belong in the plant or maintenance log.

Do not let leaves, litter or stored materials build up near the fresh air intake. What’s near the intake ends up in the unit.

When it’s something else

We’d rather tell you now than book work that will not help, so here are the limits:

Breakdowns that need a mechanical engineer
Coils that are corroded or leaking and need replacing
Building management system faults

Your questions about AHU cleaning in Essex

What does TR19 mean?

TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.

How much notice do you need?

Earlier is better, particularly for night and weekend visits. Quotes typically come back within one working day, and there’s a 24/7 line for emergencies.

Can you clean the ducts connected to the AHU?

Yes, the ductwork, grilles and diffusers the unit serves. The survey shows whether the ducts need cleaning now.

How often do AHUs need cleaning?

It depends on the unit, the filters and how the building is used. Regular inspection shows when it’s due, and the report recommends a next date.

Does the AHU have to be shut down for cleaning?

Yes. The fan must be stopped and the unit isolated, and we time the work to suit the site.

Can you set up regular visits?

Yes. Plans on a 3, 6 or 12-monthly cycle are available, to suit the system and how it’s used.

What do you do to protect the area?

We cover floors and nearby surfaces with sheeting before we start, and anything we remove is contained. At the end, the area is cleaned down.