Essex · Air handling unit cleaning
Wimbish Green AHU cleaning
Our technicians work in Wimbish Green on AHU cleaning. Out-of-hours visits, a fixed quote and a written report with photos on every job.
- Debris and leaves in the fresh air intake
- Odours coming through the supply air
- Fan sections that haven’t been cleaned in years
AHU cleaning in Wimbish Green: local notes
We cover Wimbish Green, about 39 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 Wimbish Green, the closest hospital is Saffron Walden Community Hospital, roughly 3.7 miles north-west. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Hospitals such as Saffron Walden Community Hospital (about 3.7 miles north-west) show how much a building can rely on clean ventilation, and smaller healthcare sites near Wimbish Green are no different.
Wimbish Green is about 4 miles south-east of Saffron Walden, in Essex. Whether your site is in the middle of Wimbish Green or further out, AHU cleaning is available to all kinds of commercial premises, from small sites to large estates. Wimbish Green is one of 644 places in Essex where we work for commercial clients. For sites nearby, see our Chelmsford page (19 miles or so).
Postcode districts we cover here for AHU cleaning: CB10. Neighbouring places we cover for AHU cleaning include Tye Green (1 mile west), Howlett End (1 mile south-west), Great Sampford (3 miles east), Thaxted (3 miles south) and Cutlers Green (3 miles south). Within a short drive, we also cover Braintree (13 miles south-east), Saffron Walden (4 miles north-west), Halstead (14 miles east), Great Dunmow (8 miles south), Stansted Mountfitchet (9 miles south-west) and Great Notley (12 miles south-east).
Local landmarks in Wimbish Green
The nearest railway station is Newport (Essex) station, about 5 miles west. A little further out are Saffron Walden Community Hospital (3.7 miles north-west) and Castle Camps (4.6 miles north). Not far away are West Wood.
How we handle AHU cleaning in Wimbish Green
Our AHU cleaning covers sites in Wimbish Green and the rest of Essex, in buildings such as offices, schools, healthcare sites and shops. Units are cleaned when the site can spare them, often evenings, overnight or weekends. If you’re dealing with air handling units due a clean after building work and drain trays holding standing water, we can help.
For a building in or near Wimbish Green, access is agreed in advance and the visit is planned around the journey, and the ventilation is inspected, cleaned and recorded the same as anywhere.
The sign-off is always in writing: a written report, dated and illustrated with pictures, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. It shows what was done and what, if anything, couldn’t be reached.
- Place
- Wimbish Green (CB10)
- Wider area
- Essex
- Records
- Written report with photos
- Price
- A fixed price before any work starts
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026

What a clean will not put right
Some problems need a different service or another trade:
- Coils that are corroded or leaking and need replacing
- Ventilation that was badly designed in the first place
- Breakdowns that need a mechanical engineer
If in doubt, call us on 0345 646 2711 or send us an email and we’ll say what we think before you book.
What we work on in Wimbish Green
- Dampers and louvres
- Drain trays
- Filter sections
- Internal panels
- Supply and extract fans
- Heating and cooling coils
Common questions in Wimbish Green
Is AHU cleaning available in Wimbish Green?
Yes, Wimbish Green is within the area we cover across London and the South East. You can phone us on 0345 646 2711 or send us an email and tell us what needs doing.
Will you come out to Wimbish Green?
Yes, Wimbish Green is part of our area, however small the site. Just mention lanes, gates or anything else about the site when you book.
Can you set up regular visits?
Yes. Scheduled maintenance plans are part of what we do, set at the interval the system needs. The report from each visit recommends the next date.
Which accreditations do you hold?
We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
Can one contract cover all our sites?
Yes. Our area covers London and the South East, so sites at different addresses can be planned together as one programme. Each site gets its own report and pictures.
How much does AHU cleaning cost?
Every site is different, so each gets its own fixed quote. For a quote, phone us on 0345 646 2711, or email photos and tell us about the site and its opening hours.
What information do you need?
Where the site is, what it is and when it’s open, along with a few pictures and any previous report.
Do you give a certificate after the clean?
Yes, a TR19® certificate and a photo report. It includes a recommended date for the next check.
Landlords, agents and facilities managers
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.
Running several sites is easier with one contractor. We cover South East England and London, so a run of sites can go into one programme and kept on a regular cycle.
Different parts, different methods
Drain trays
The drain tray collects water from the cooling coil. Standing water and slime are removed and the outlet is checked.
Fans and fan sections
The fan moves all of the unit’s air, so dirt on it gets spread around. The impeller, its housing and the fan chamber are cleaned.
What affects the cost of AHU cleaning
A fixed price needs a few facts first. We check:
- The size of the system
- How easy every part is to reach
- Any permits to work or inductions
- A single visit or a regular plan
Working hours, access and the scale of the site can all change the price. Each of those is built into the quote, and the price is fixed before any work starts.
Helping us quote
The more you tell us, the more accurate the quote. With your enquiry, please include:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- The times we could work without disrupting the site
- Photos showing the whole system and its surroundings
- Detail shots of panels, filters and grilles
Getting a quote does not take long. Call or email with a few details and you will usually have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.
When to call us in Wimbish Green
Cooling coils create condensation, and that water has to go somewhere. A blocked outlet or a badly sloped tray leaves standing water, and slime and smells soon follow.
Clients typically contact us when they notice one of these:
- Dirty coils holding back the airflow
- Blocked condensate drains and slimy trays
- Air handling units with blocked filters
- Odours coming through the supply air
School buildings such as Wimbish Primary School are usually done in the holidays, so classrooms are not disturbed.
Comparing quotes
- Whether VAT is included
- What paperwork you get at the end
- How areas they cannot reach will be recorded
- Whether they’re fully insured
Between visits
After the visit, a few habits help the work last:
- Do not ignore odours coming through the grilles
- File each AHU report in the maintenance log
- Diary the inspection date recommended in the report
- Report stiff or damaged access doors
Restart the unit with your site team or maintenance contractor once we’ve finished. Keep an eye on the condensate drain over the next few days to confirm water is draining away.
Keep the unit’s doors and panels in working order. If a section is hard to get into, it tends not to get checked.
The process
We start by comparing what we find with the survey or your photos. 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. Seeing the system in pictures first means the trip to Wimbish Green can be planned properly.
- 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, coils, fan section and casing are cleaned in turn.
- Standing water and slime come out of the tray and the drain is checked.
- A TR19® certificate and photo report follow the clean.
Before we arrive
- Plan for cooking equipment or plant to be off before we arrive
- Find the previous report, if there is one
- Let us know about parking and loading
Getting a quote
Every quote begins with a look at the system, either from pictures and details you send or from a site visit. Then we send a fixed price, before work begins.