Essex · Air handling unit cleaning
Air handling unit cleaning in Lexden, Essex
AHU cleaning for Lexden and the surrounding area: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- Dirty filters cutting the airflow
- Blocked condensate drains and slimy trays
- Intake sections clogged with outdoor debris
AHU cleaning in Lexden
We clean the parts of the unit where dirt and moisture gather: the filter section, heating and cooling coils, drain trays, fan and casing. You get a TR19® certificate and a photo report showing the unit before and after. The work covers dampers and louvres, heating and cooling coils and drain trays, and people most often call us about units that have only ever had filter changes and rooms that smell stuffy when the system runs.
Smaller buildings around Lexden often keep their ventilation units in a roof void or plant cupboard, where they’re easy to forget. Filters, coils and drain trays need attention whatever the size of the unit.
Insurers, fire officers and environmental health officers all look at records. That’s why every job is written up in a report with pictures, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.

- Where
- Lexden (CO3, CO2)
- Wider area
- Essex
- Paperwork
- Report and photos after the visit
- Quotes
- Fixed quote, normally within a working day
- Hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Between visits
Looking after the system between visits is straightforward, and it helps at the next visit:
- Clear leaves and litter away from the intake
- File each AHU report in the maintenance log
- Make sure the unit’s access doors open easily
- Change filters on schedule and log each change
If the ductwork hasn’t been cleaned, consider it next. A clean unit feeding dirty ducts only solves half the problem, and we can survey both.
Change or clean filters on time. Overloaded filters let more dirt through to the coils and fan.
In-house cleaning or a specialist?
Staff cleaning doesn’t replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.
Why deal with it now?
Stuffy rooms and stale smells in a building in Lexden can sometimes be traced back to the AHU. Cleaning it deals with the cause rather than the symptom. Even a site near Lexden that’s only busy part of the week needs its system checked on a schedule.
You will not find a price list here, because each job is priced on what it involves. For a fixed quote, give us a ring on 0345 646 2711, or email photos, and we will talk you through it.
Why us?
- A written report with pictures after every visit
- A fixed price before any work starts
- One contact for all your sites in London and the South East
- Work around your opening hours, with 24/7 emergency cover
Read our cost guide and how to check a contractor.
Questions from Lexden
Do you cover smaller places like Lexden?
Yes, smaller places are covered as well as towns. Just mention lanes, gates or anything else about the site when you book.
Can you come to Lexden after we close?
Yes, we can come after you close and finish before you open. The work in Lexden can fit around your hours. Just call us on 0345 646 2711, or send details by email with your opening times and we’ll plan around them.
Which sectors do you work in?
Commercial premises of every kind: kitchens, offices, schools, healthcare, retail, leisure and food production. Work is timed around how each site runs.
Do you survey before quoting?
Yes. Photos often do the job, and larger or hidden systems get a visit.
Can you look after several sites?
Yes. Tell us the addresses and what each needs and you’ll get one fixed quote.
Does the AHU have to be shut down for cleaning?
Yes. Cleaning needs the unit off and isolated, and we time the work to suit the site.
Are you fully insured?
Yes, we are fully insured. We also hold CHAS and SafeContractor for clients who vet their contractors.
What do you clean inside the unit?
Everything inside the unit that air passes over, from the intake and filters through the coils and fan to the outlet. The photo report shows each section before and after.
What AHU cleaning looks like in Lexden
The FSA’s food hygiene register lists about 21 schools, colleges and universities, about 29 hospitals, care homes and childcare premises and about 6 hotels and guest houses with registered kitchens or food service within roughly a mile and a half of the centre of Lexden. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. We cover Lexden, about 49 miles from central London, as part of our work across London and the South East. We work evenings, overnight and at weekends, so the visit fits around the site. The nearest hospital to Lexden is Essex County Hospital, about 1 mile east. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes.
For schools like Philip Morant School and College, the holidays are the usual time to inspect and clean ventilation.
Lexden is about 1 mile west of Colchester, in Essex. Whether your site is in the middle of Lexden or further out, AHU cleaning is available to all kinds of commercial premises, from a single unit to a large public building. Our Essex coverage runs to 644 places, Lexden among them. Our Chelmsford page covers sites nearby, about 19 miles away.
Postcode districts we cover here for AHU cleaning: CO3 and CO2. AHU cleaning is available to premises on Park Road, Heath Road and Capel Road and the roads around them. You will find Lexden on the A1124, so it’s easy for us to get to for out-of-hours visits. We also cover the places around Lexden: Camulodunum (1 mile east), Braiswick (1 mile north), Abbey Field (1 mile south-east), Colchester (1 mile east) and Beacon End (2 miles west). Further out, we also cover Braintree (13 miles west), Clacton-on-Sea (13 miles south-east), Maldon (13 miles south-west), Witham (11 miles south-west), Halstead (11 miles west) and Heybridge (12 miles south-west).
Around Lexden
Around Lexden, our work takes us to kitchens and buildings near Lexden Park, Prettygate Infant School and The Sun Inn, among other places. The closest station to Lexden is Colchester station, about 1.6 miles north-east. Well-known places in the area include Essex County Hospital (1 mile east) and Lion Walk (1.5 miles east). For a walk, there’s Lexden Gathering Grounds.
Nearby places to Lexden
Other services in Lexden
Do you need AHU cleaning in Lexden?
Mechanical servicing keeps a unit running, but it doesn’t always include cleaning the inside. So a unit can be well maintained and still dirty.
Clients typically contact us when they notice something like this:
- Coils clogged with dust and debris
- Filters that are clogged or overdue
- Dirty fans and fan housings
- Blocked condensate drains and slimy trays
Healthcare buildings such as Essex County Hospital, about 1 mile east, depend on their ventilation; if you manage a surgery, clinic or care home near Lexden, yours matters too.
What to look for in a quote
- Whether a written report and pictures are included
- What’s included in the scope, part by part
- How they set the interval to the next visit
- Whether a survey comes first
Part by part
Rooftop and plant room units
Units on roofs and in plant rooms can be awkward to reach. Access is planned during the survey so the quote reflects it.
Drain trays
A tray that does not drain becomes a pool of stagnant water in the airstream. We clean it and report anything about the tray or drain that needs fixing.
How it works
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. Everything the job in Lexden needs is worked out beforehand, from the survey.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
How to prepare
- Tell us where we can park and unload
- Allow time for equipment near the work to be turned off and cool down
- Let us know about permits to work or site inductions
How to get a quote
If you need AHU cleaning in Lexden, call 0345 646 2711 or use the quote form. Tell us what kind of premises it is and when it’s open, plus photos or the previous report if they’re to hand. A fixed quote typically follows within one working day.
Read more
What affects the cost of AHU cleaning
The price is fixed before any work begins. It takes into account:
- What state the system is in
- Site rules, permits and inductions
- The times the site is available
- How easy every part is to reach
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. The price is fixed before we start.
What to send for a quote
A few details help us quote accurately. When you get in touch, it helps to send:
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Your opening hours and when the area is out of use
- Detail shots of panels, filters and grilles
- Photos showing the whole system and its surroundings
The quickest way to a quote is to send photos: 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 we can price many jobs without a visit.