Essex · Air handling unit cleaning
Great Notley AHU cleaning
Professional AHU cleaning in and around Great Notley, booked around your opening hours and signed off in writing with photos.
- Odours coming through the supply air
- Drain trays holding standing water
- Dust built up on fan impellers
AHU cleaning in Great Notley
Our AHU cleans for sites in Great Notley cover the parts that collect dirt: the filter section, heating and cooling coils, drain trays, fan and casing. Every clean comes with a TR19® certificate and before and after photos in a report. If you are dealing with rooms that smell stuffy when the system runs and leaves and litter drawn into the unit, we can help, from dampers and louvres, filter sections and supply and extract fans onwards.
For a building near Great Notley, the visit is planned around how it’s used, and the journey is planned ahead. The work is the same as in any town: inspect, clean, record.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we’re fully insured. We’re also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Where
- Great Notley (CM77)
- Region
- Essex
- Paperwork
- Report and pictures after the visit
- Price
- Fixed quote, normally within a working day
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
Your questions about AHU cleaning in Great Notley
Do you work at weekends in Great Notley?
Yes, out-of-hours work is a big part of what we do. That way a site in Great Notley doesn’t have to lose a day’s trading. Let us know the hours you’re closed and we will book within them.
Will you come out to Great Notley?
Yes, we work in villages as well as towns, and Great Notley is covered. Just mention lanes, gates or anything else about the site when you book.
What do you clean inside the unit?
The main parts are the filters, coils, drain tray, fan and inside of the casing. We confirm the scope after looking at the unit.
Do you look at the system first?
Yes. We always survey first, either from photos and details you send or on a site visit. A fixed quote follows.
Are you fully insured?
Yes, fully. CHAS and SafeContractor accreditation sit alongside it for clients who vet their contractors.
When should our AHU next be cleaned?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. We recommend a next date in each report.
Are you accredited?
We hold CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.
Do you need to switch the unit off?
Yes. The fan must be stopped and the unit isolated, so we plan it for a time that suits the building.
What happens on the day
Your trading hours come first. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. Once we’re in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes anything from half a day for one small unit to several shifts for a plant room full of them. Tell us when your site near Great Notley is quiet and the visit will be booked for then.
- First the unit is surveyed, from pictures or a visit, and the scope agreed.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Standing water and slime come out of the tray and the drain is checked.
- You get a TR19® certificate and a photo report.
Preparing for the visit
- Arrange a key holder or contact on site
- Mention any sign-in, permit or induction we need
- Clear the space around the work
Get a fixed quote
For a fixed quote, call 0345 646 2711 or email us 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. You will typically have a quote within one working day.
Related advice
Multi-site and managed buildings
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We can quote either party and send the paperwork to whoever needs it.
Keeping records across a portfolio is half the battle. Each visit produces a dated report with photos, ready to show insurers, fire officers or EHOs.
Different parts, different methods
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. Cleaning restores the open path through the fins.
Filters
Dirty filters cut airflow and let dirt slip past their frames. We clean the frames and rails so the filters sit tight.
Also near Great Notley
More services for Great Notley
What AHU cleaning can’t fix
In fairness, some problems need a different fix:
- Mechanical faults with motors, belts or bearings
- Problems with the unit’s controls or sensors
- Damaged coils beyond cleaning
Not sure which it is? You can ring 0345 646 2711 or send us an email and we will tell you honestly before booking.
What the work covers
- Filter sections
- Supply and extract fans
- Drain trays
- Internal panels
- Dampers and louvres
- Heating and cooling coils
Great Notley buildings and their air
There are about 8 schools, colleges and universities and about 7 hospitals, care homes and childcare premises on the FSA’s food hygiene register within about 1.5 miles of central Great Notley. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. About 1.1 miles north-east of Great Notley is William Julien Courtauld Hospital, the nearest hospital. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. About 37 miles out from central London, Great Notley is part of the South East area we work across. We work evenings, overnight and at weekends, so the visit fits around the site.
If you run a surgery, dental practice or care home near Great Notley, clean ventilation matters as much to you as to a hospital like William Julien Courtauld Hospital (about 1.1 miles north-east).
Great Notley is about 2 miles south-west of Braintree, in Essex. For AHU cleaning in and around Great Notley, it’s easy to get a fixed quote: please call us on 0345 646 2711 or email us. We work across South East England and London, Great Notley included. 644 places in Essex are on our list, large and small. We also work in Chelmsford, about 9 miles from Great Notley.
Our technicians cover all of CM77 for AHU cleaning and the streets around it. Streets in the area include London Road, Harnham Drive and Colville Close, all of which we cover for AHU cleaning. Close by, we work in Row Green (1 mile south-east), Young's End (1 mile south), Little Common (1 mile north-west), Rayne (1 mile north-west) and Black Notley (2 miles east). Further out, we also cover Chelmsford (9 miles south), Maldon (11 miles south-east), Witham (6 miles south-east), Camulodunum (15 miles east), Halstead (7 miles north-east) and Great Dunmow (7 miles west).
Local landmarks in Great Notley
In Great Notley, that means kitchens and buildings near Notley High School and Braintree Sixth Form, The Essex Cricketers pub and Cuckoo Wood, among other places. Great Notley’s nearest station is Braintree station, about 1.6 miles north-east. Well-known places in the area include Tudor House Museum (Braintree) (2.2 miles north-east) and William Julien Courtauld Hospital (1.1 miles north-east). The countryside around Great Notley includes Phyllis Currie Nature Reserve.
What your team can do, and what needs us
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.
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
What affects the quote in Great Notley
The diagnosis comes before the price. The main factors are:
- Whether it’s a one-off visit or part of a schedule
- Where the site is and how we reach it
- Any permits to work or inductions
- What state the system is in
No two sites are the same, so we price each one individually. Size, access, the condition of the system and when we can work all play a part.
Helping us quote
To help us quote quickly, send us:
- Close-ups of filters, grilles, hatches or access panels
- How we’d reach plant on a roof or in a plant room
- Your last certificate, test record or report
- Wide pictures of the system and the area around it
To help us quote: where the site is, what it is and its opening hours, pictures of the system and the last certificate or report, if there is one. Then give us a ring on 0345 646 2711, or email photos.
Common problems we fix in Great Notley
Planned maintenance often covers belts, motors and filters but not cleaning. That means a unit can tick every service box and still be carrying years of dirt.
Keep an eye out for any of the following:
- Coils clogged with dust and debris
- Air handling units with blocked filters
- Intake sections clogged with outdoor debris
- Stale or musty smells from the ventilation
Classrooms and halls at schools such as White Court School are easiest to work in when pupils are away.
What to look for in a quote
- Whether they recommend a next date
- Whether the quote is based on a survey or pictures
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- What records you will receive afterwards