Essex · Air handling unit cleaning
Air handling unit cleaning in Debden Green, Essex
AHU cleaning for commercial sites in Debden Green and across Essex. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Plant that has been serviced but not cleaned
- Leaves and litter drawn into the unit
- Dirty coils holding back the airflow
When it’s something else
We’d rather tell you now than book work that won’t help, so these are the things it will not cover:
- Breakdowns that need a mechanical engineer
- Controls and BMS settings that run the unit
- Damaged coils beyond cleaning
If in doubt, ring 0345 646 2711 or send us an email and we’ll say what we think before booking.
What the work covers
- Internal panels
- Supply and extract fans
- Heating and cooling coils
- Drain trays
- Filter sections
- Dampers and louvres
AHU cleaning in Debden Green
Think of an AHU clean as a full check-up for the ventilation. Every section is opened, cleaned and photographed, so you can see the unit’s condition for yourself. Typical jobs include plant that has been serviced but not cleaned and units needing a clean before a new tenant or handover, across filter sections, supply and extract fans and dampers and louvres.
In rural areas, ventilation units are often in roof voids or outbuildings, which makes them easy to overlook.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. On top of that, we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.

- Location
- Debden Green (CB11)
- Region
- Essex
- Reporting
- Photo report after each visit
- Price
- Fixed quote, usually within a working day
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Part by part
Heating and cooling coils
Cooling coils stay damp in use, so dirt on them can turn sticky. We clean the coil and the tray beneath it together.
Drain trays
Older trays can corrode and start leaking. Their condition goes into the report with photos so repairs can be planned.
What AHU cleaning looks like in Debden Green
We cover Debden Green, about 36 miles from central London, as part of our work across London and the South East. A survey and a fixed quote come first, then the visit at a time that suits you. About 4.6 miles north of Debden Green is Saffron Walden Community Hospital, the nearest hospital. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes.
Healthcare buildings such as Saffron Walden Community Hospital, about 4.6 miles north, depend on their ventilation; if you manage a surgery, clinic or care home near Debden Green, yours matters too.
Debden Green is about 5 miles south-east of Saffron Walden, in Essex. Whatever kind of site you run in Debden Green, we can take on AHU cleaning. We can work out of hours so trading is not interrupted. Debden Green is one of 644 places in Essex we cover for commercial clients. For sites nearby, see our Chelmsford page (18 miles or so).
Postcode districts we cover here for AHU cleaning: CB11. Close by, we work in Debden (2 miles north-west), Rook End (2 miles west), Elder Street (2 miles north), Widdington (2 miles west) and Broxted (3 miles south). We also work in nearby towns such as Braintree (13 miles south-east), Harlow (15 miles south-west), Saffron Walden (5 miles north-west), Halstead (15 miles east), Great Dunmow (7 miles south-east) and Stansted Mountfitchet (6 miles south-west).
Around Debden Green
The closest station to Debden Green is Newport (Essex) station, about 3.6 miles west. Nearby you’ll also find Saffron Walden Community Hospital (4.6 miles north). Not far away are West Wood.
Staff cleaning versus specialist work
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
Staff cleaning and specialist work aren’t the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
How we price AHU cleaning
We do not publish a price list, because sites vary so much. What we look at:
- Whether it’s a one-off visit or part of a schedule
- The condition we find in the survey
- Site rules, permits and inductions
- How easy every part is to reach
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, and a neglected system can mean more work. If you are not sure what’s needed, phone us on 0345 646 2711, or send details by email for straight advice and a fixed quote.
What to send for a quote
The more you tell us, the more accurate the quote. With your enquiry, please include:
- When the site is open and when it’s quiet
- Close-ups of filters, grilles, hatches or access panels
- The paperwork from the last visit, if you have it
- How we’d reach plant on a roof or in a plant room
The quickest way to a quote is to send photos: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and we can price many jobs without a visit.
Landlords, agents and facilities managers
Whether it’s one building or many, you get the same standard: diagnosis, a fixed price, work booked around your hours and a written report with photos.
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements and we’ll come back with a fixed quote.
FAQs for Debden Green
Will you come out to Debden Green?
Yes, we work in villages as well as towns, and Debden Green is covered. Photos of the system and directions to the site help us plan the visit.
Can you come to Debden Green after we close?
Yes, evening, overnight and weekend work is normal for us. Your customers, staff or residents in Debden Green needn’t be disturbed. Let us know the hours you are closed and we’ll book within them.
What do you need from me for a quote?
Just the basics: where it is, what kind of site, when it’s open and the access. Photos and any previous paperwork make it quicker. Then call us on 0345 646 2711, or send details by email.
Which kinds of sites do you work on?
All kinds of commercial and public premises: kitchens, offices, schools, healthcare, retail, leisure and food production. Work is timed around how each site runs.
Is there a survey before the work?
Yes, every time. Diagnosis comes before treatment: the survey shows what needs doing and what access we need, and the quote is based on that.
How do you protect the area?
We start with protection: floor sheeting and covers over nearby surfaces and equipment. The area is left tidy, with our waste taken away.
Can one contract cover all our sites?
Yes. Tell us the addresses and what each needs and we’ll quote them together.
What accreditations do you have?
Our accreditations are 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.
When to call us in Debden Green
Most units live out of sight on roofs, in plant rooms or in ceiling voids and are rarely seen by anyone but maintenance staff. It’s easy for a long time to go by without anyone opening the panels.
Keep an eye out for any of the following:
- Stale or musty smells from the ventilation
- Filters that are clogged or overdue
- Coils clogged with dust and debris
- Plant that has been serviced but not cleaned
In Debden Green, we look inside the system before deciding what needs cleaning.
Questions to ask before you book
- Whether the quote is based on a survey or pictures
- What’s included in the scope, part by part
- Proof of accreditation you can verify
- What records you will receive afterwards
Also near Debden Green
Also in Debden Green
The process
When we arrive, we check the system against the survey or the photos you sent. Anything unexpected is raised with you before we go further. From there, it takes anything from half a day for one small unit to several shifts for a plant room full of them. We agree a date with you, plan the drive to Debden Green and turn up when the site is quiet.
- We start with a survey of the unit and a fixed quote for the work.
- We arrange the shutdown with your staff and sheet the area.
- 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.
Getting ready for the visit
- Tell us about site rules, permits or sign-in
- Let us know about parking and loading
- Arrange a key holder or contact on site
Ask for a quote
For AHU cleaning in Debden Green, phone us on 0345 646 2711, or email photos. Tell us what kind of premises it is and when it’s open, plus pictures or the previous report if they’re to hand. A fixed quote typically follows within one working day.