Essex · Air handling unit cleaning
Sibley's Green AHU cleaning
For cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Sibley's Green, one call is all it takes, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Leaves and litter drawn into the unit
- Stale or musty smells from the ventilation
- Filters that are clogged or overdue
Common questions in Sibley's Green
Do you clean school ventilation in Sibley's Green in the holidays?
Yes, and it’s the easiest time to do it. Around Sibley's Green, the Food Standards Agency lists about 2 schools and colleges with registered kitchens within a mile and a half or so. Just call us on 0345 646 2711 or send us an email with your term dates and we’ll plan around them.
Do you cover smaller places like Sibley's Green?
Yes. Villages and rural sites across the South East are part of our work, Sibley's Green included. A survey first, from pictures or a visit, means we arrive with the right kit.
Can you clean the ducts connected to the AHU?
Yes. We reach the ducts through access panels, with anything inaccessible recorded, with new panels fitted where necessary.
Do you offer maintenance contracts?
Yes, of course. Tell us what you have and how it’s used and we will propose a schedule with a fixed quote.
How long does an AHU clean take?
As a guide, it takes anything from half a day for one small unit to several shifts for a plant room full of them. We plan the shutdown around that, including evenings or weekends.
Are you accredited?
We hold CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.
How often should an air handling unit be cleaned?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. Each report suggests when the unit should next be looked at.
Will you repair the fan or motor?
Our AHU work is cleaning rather than mechanical repair. Any faults we notice are recorded for your maintenance team to follow up.
AHU cleaning in Sibley's Green
The fan pushes every bit of air in the system, so dust on its blades and housing ends up in the airstream. Fan, housing and the surrounding panels are cleaned as part of the job, with the unit switched off and made safe first. Common call-outs are for filters that are clogged or overdue and dirty coils holding back the airflow, across drain trays, supply and extract fans and heating and cooling coils.
In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.
Insurers, fire officers and environmental health officers all look at records. That is why every job is written up in a report with photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Location
- Sibley's Green (CM6)
- Wider area
- Essex
- Paperwork
- Photo report after every visit
- Quote
- A fixed quote up front
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Updated
- 30 October 2026
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 they do not reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. Leave those to us.
Fixed quotes for AHU cleaning in Sibley's Green
The survey tells us what the work involves. The main factors are:
- The scale of the work
- The number of sites or systems
- One-off work versus a regular cycle
- Working hours and out-of-hours timing
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you are unsure, call us on 0345 646 2711 or use the quote form and we’ll give you an honest view and a fixed quote.
Helping us quote
What to send for a quote:
- Close-ups of filters, grilles, hatches or access panels
- When the site is open and when it’s quiet
- The roof, plant room or outside wall the system runs to
- The paperwork from the last visit, if you have it
Want a quote for AHU cleaning? Please call us on 0345 646 2711 or email us with a few details about the site. We will explain what we’d do and send a fixed quote before anything is booked.
What happens if it’s left?
A slimy drain tray only gets worse. Leave it and you risk overflows, leaks into the space below and odours carried round the building. Clearing it now is a much smaller job. Our emergency line runs 24/7, but a planned visit to Sibley's Green is calmer for everyone.
When the work has to happen, how we reach it and how big the site is all affect the cost. We take each of them into account and give you a fixed price before work begins.
Why Sibley's Green businesses choose us
- CHAS and SafeContractor accredited, with ISO 9001
- Every visit written up, with pictures
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Every job surveyed first
Read how cleaning jobs are priced or our accreditations and certificates.
Part by part
Rooftop and plant room units
Ceiling-mounted and compact units are cleaned too. We protect the area below before opening them.
Fans and fan sections
The fan moves all of the unit’s air, so dirt on it gets spread around. We clean the impeller, housing and surrounding section.
When something else is needed
An honest diagnosis matters more to us than a booking, so here’s what AHU cleaning will not do:
- Dirty ducts beyond the unit itself
- Building management system faults
- A system that is undersized for the building
If you’re not sure, just call 0345 646 2711 or use the quote form and we’ll give you a straight answer.
What the work covers
- Filter sections
- Heating and cooling coils
- Internal panels
- Dampers and louvres
- Drain trays
- Supply and extract fans
Ventilation in Sibley's Green buildings
We cover Sibley's Green, about 35 miles from central London, as part of our work across London and the South East. The visit is fixed around your opening hours, not ours.
For buildings in and around Sibley's Green, TR19® Air cleaning starts with an inspection.
Sibley's Green is about 8 miles south-east of Saffron Walden, in Essex. We provide AHU cleaning for businesses, landlords and public buildings in Sibley's Green and the rest of Essex. Across Essex, we cover 644 places, and Sibley's Green is one of them. Our Chelmsford page covers sites nearby (15 miles or so).
AHU cleaning in CM6 follows the same survey, fixed quote and written report as everywhere else we cover. Close by, we work in Monk Street (1 mile north-west), Duton Hill (1 mile south-west), Bardfield End Green (1 mile north-east), Tilty (2 miles south-west) and Lindsell (2 miles south-east). Further out, we also cover Chelmsford (15 miles south-east), Braintree (10 miles east), Harlow (15 miles south-west), Witham (15 miles south-east), Saffron Walden (8 miles north-west) and Halstead (12 miles east).
Landmarks near Sibley's Green
Around Sibley's Green, our work takes us to kitchens and buildings near Greyhound Public House, among other places. For rail, the closest station is Stansted Airport station, roughly 4.8 miles south-west. A little further out are Little Easton Moat (3.1 miles south). The countryside around Sibley's Green includes West Wood.
Places near Sibley's Green
What else we do in Sibley's Green
How it works
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 the same goes into the written report. The visit takes a single shift for a typical unit, longer for large or heavily soiled ones. Somewhere like Sibley's Green, lanes, gates and parking are worth mentioning in advance.
- First we agree when the unit can be switched off, including evenings or weekends.
- Before cleaning, each section is photographed.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- We finish with the fan section and the drain tray.
- We take after photos and issue the certificate and report.
How to prepare
- Tell us the best time to work, such as after service or at a weekend
- Clear the space around the work
- Arrange a key holder or contact on site
How to get a quote
If you need AHU cleaning in Sibley's Green, call us on 0345 646 2711 or email us. Let us know the site type and the opening hours, plus pictures or the previous report if they’re to hand. We typically send a fixed quote within one working day.
Advice
Do you need AHU cleaning in Sibley's Green?
Most units live out of sight on roofs, in plant rooms or in ceiling voids, so they’re easy to forget about. Months can pass without anyone looking inside.
Any of these means the system needs a check-up:
- Intake sections clogged with outdoor debris
- Stale or musty smells from the ventilation
- Dirty filters cutting the airflow
- Condensate trays that won’t empty
Wherever a school like Putteridge High School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Questions to ask before booking
- Whether VAT is included
- When the next visit should be, and why
- What happens if part of the system cannot be accessed
- Proof of accreditation you can verify