Essex · Air handling unit cleaning
Starling's Green AHU cleaning
AHU cleaning for Starling's Green and the surrounding area: a survey, a fixed price, careful work and proper paperwork. Call for a fixed quote.
- Intake sections clogged with outdoor debris
- Air handling units with blocked filters
- Dirty fans and fan housings
What happens on the day
The visit has three parts: getting the area ready, doing the work and signing it off. Getting ready means protecting surfaces and switching off what needs to be off, and the sign-off is a written report with pictures. The middle part takes longest, which takes from a few hours for a compact unit to a day or more for a large one. Somewhere as small as Starling's Green, the date and timings are agreed with you well before the day.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Dirt and debris are removed from each section.
- Coils and trays are cleaned and the condensate drain cleared.
- The unit is closed up and handed back, with a report to follow.
How to prepare
- Dig out any earlier paperwork for the system
- Mention any sign-in, permit or induction we need
- Agree a time when the area can be out of use
Get a fixed quote
There’s no standard price list, because every site is different. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To start, ring 0345 646 2711, or send details by email.
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AHU cleaning in Starling's Green
Our AHU cleaning covers sites in Starling's Green and the rest of Essex, in buildings such as offices, schools, healthcare sites and shops. The work is timed around when the system can be switched off, including evenings, nights and weekends. If you have coils clogged with dust and debris and units needing a clean before a new tenant or handover, we can put it right, from supply and extract fans, dampers and louvres and internal panels onwards.
In rural areas, ventilation units are often in roof voids or outbuildings, which makes them easy to overlook.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.

- Location
- Starling's Green (CB11)
- Wider area
- Essex
- Records
- Photo report after every visit
- Price
- A fixed quote up front
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
What staff can safely do
Logging matters as much as cleaning. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, alongside our reports.
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We can diagnose it and quote.
Your questions about AHU cleaning in Starling's Green
Can a school’s ventilation in Starling's Green be done out of term time?
Yes, holiday work suits schools best. The FSA’s register shows about 3 schools and colleges with food registrations within roughly a mile and a half of Starling's Green. Tell us your holiday dates and we’ll book the visit for when the site is empty.
Will you come out to Starling's Green?
Yes, Starling's Green is part of our area, however small the site. A survey first, from pictures or a visit, means we arrive with the right kit.
Which kinds of sites do you work on?
Any commercial site with kitchens or ventilation, from a single café to a large school. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
Which parts of an air handling unit do you clean?
Every section that collects dirt: filters, coils, tray, fan and panels. The survey confirms what’s in your unit before we quote.
When should our AHU next be cleaned?
That’s set by inspection, in line with TR19® Air. Units in heavy use or in sensitive buildings may need attention more often.
What about areas you cannot get to?
They’re listed in the report, never skipped quietly. The report says which parts couldn’t be reached and why, and we can quote to improve the access.
Can you quote from pictures?
Yes, where the photos show enough. Otherwise, we book a survey at a time that suits the site, then a fixed quote.
Do you look at the system first?
Yes. We always survey first, either from photos and details you send or on a site visit. Then you get a fixed quote.
What AHU cleaning can’t fix
An honest diagnosis matters more to us than a booking, so here’s what AHU cleaning will not do:
- Airflow problems caused by the system’s design
- Dirty ducts beyond the unit itself
- Mechanical faults with motors, belts or bearings
Not sure which it is? You can give us a ring on 0345 646 2711 or drop us a line and we’ll tell you honestly before you book.
What we work on in Starling's Green
- Drain trays
- Filter sections
- Supply and extract fans
- Internal panels
- Dampers and louvres
- Heating and cooling coils
Do you need AHU cleaning in Starling's Green?
An overdue filter loads up with dirt, cutting airflow and sometimes letting dirty air bypass them altogether. Then the rest of the unit takes the load.
Keep an eye out for any of the following:
- Dirty fans and fan housings
- Odours coming through the supply air
- Air handling units never cleaned inside
- Debris and leaves in the fresh air intake
Ventilation work in and around Starling's Green is risk-based: inspect, then clean what needs it.
What to look for in a quote
- How areas they cannot reach will be recorded
- If they look at the system before pricing
- Whether they’re fully insured
- How VAT is shown on the quote
What affects the quote in Starling's Green
The price is fixed before any work begins. It’s based on:
- Travel, parking and unloading
- The times the site is available
- One-off work versus a regular cycle
- What state the system is in
Every site is different, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all make a difference.
What to send for a quote
What to send for a quote:
- When the site is open and when it’s quiet
- Close-ups of filters, grilles, hatches or access panels
- Your last certificate, test record or report
- The roof, plant room or outside wall the system runs to
Need a price for AHU cleaning? Please phone us on 0345 646 2711 or drop us a line with a few details about the site. We will talk you through the work and send you a fixed quote before anything is booked.
Looking after it afterwards
Once we have finished, these simple steps help:
- Watch for drips or damp patches near the plant
- Report stiff or damaged access doors
- Store the TR19 paperwork where auditors can find it
- Report musty smells from the vents straight away
The report suggests a date for the next inspection or clean, based on what we found. TR19® Air is risk-based, so the interval depends on the unit and how the building is used.
Change or clean filters on time. Overloaded filters let more dirt through to the coils and fan.
Also near Starling's Green
Also in Starling's Green
How the job changes from site to site
Heating and cooling coils
Because cooling coils run wet, the dirt on them tends to cling. The coil and its drain tray are cleaned as one job.
Filters
Dirty filters cut airflow and let dirt slip past their frames. The filter section is cleaned so new or cleaned filters sit properly.
AHU cleaning in Starling's Green: local notes
The FSA’s food hygiene register lists about 3 schools, colleges and universities with registered kitchens or food service across Starling's Green and its immediate surroundings (about a mile and a half). Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. Starling's Green is about 33 miles from central London, well within the area we cover across London and the South East. Evening, overnight and weekend visits are all possible.
Wherever a school like Clavering Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Starling's Green is about 6 miles north of Bishop's Stortford, in Essex. From the centre of Starling's Green to the outskirts, we cover AHU cleaning for every kind of premises, from small sites to large estates. Starling's Green is one of 644 places in Essex we cover for AHU cleaning. Chelmsford is in our area too, about 22 miles from Starling's Green.
Postcode districts we cover here for AHU cleaning: CB11. Other places close to Starling's Green include Clavering (1 mile east), Berden (1 mile south-east), Stocking Pelham (1 mile south), Hill Green (2 miles north-east) and The Willows (2 miles south-west). Larger places within reach include Harlow (13 miles south), Saffron Walden (7 miles north-east), Great Dunmow (12 miles south-east), Stansted Mountfitchet (5 miles south-east), Newhall (13 miles south) and Elsenham (5 miles south-east).
What’s near Starling's Green
The nearest railway station is Newport (Essex) station, roughly 4.2 miles east of the centre. Other landmarks nearby include Brent Pelham (2.1 miles west). Not far away are Aubrey Buxton Nature Reserve.