Essex · Air handling unit cleaning
Air handling unit cleaning in Patching, Essex
Professional AHU cleaning in and around Patching, timed so the site keeps working and finished with a written report and photos.
- Units needing a clean before a new tenant or handover
- Condensate trays that won’t empty
- Air handling units never cleaned inside
What the work involves, part by part
Heating and cooling coils
Because cooling coils run wet, the dirt on them tends to cling. We clean the coil and the tray beneath it together.
Fans and fan sections
The fan section is cleaned with the unit switched off and isolated with your site team.
AHU cleaning for kitchens and businesses in Patching
We clean air handling units for buildings in Patching and across Essex, working to TR19® Air, in buildings such as offices, schools, healthcare sites and shops. Units are cleaned when the site can spare them, often evenings, overnight or weekends. We’re often asked to deal with drain trays holding standing water and leaves and litter drawn into the unit, across heating and cooling coils, dampers and louvres and drain trays.
In a smaller place like Patching, buildings with ducted ventilation are more likely to be a school, a surgery, a care home or a small business unit than an office block. Smaller systems still gather dust and need inspecting.
Each visit ends with a written report and photos, so there’s a dated record of the work. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Where
- Patching (CM1)
- Wider area
- Essex
- Records
- Photo report after every visit
- Quotes
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Checked
- 30 October 2026
What staff can safely do
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, they should report it rather than try to fix it. We will take a look and give you a fixed quote.
Staff cleaning doesn’t replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but the parts you can’t see still need a specialist at the right interval.
Also near Patching
What else we do in Patching
What affects the cost of AHU cleaning
The diagnosis comes before the price. The main factors are:
- The number of sites or systems
- The times the site is available
- Access, including roofs, risers and ceiling voids
- What state the system is in
Putting the work off seldom saves money. Problems in a system tend to grow, which can make the next visit longer. If you are unsure, call us on 0345 646 2711 or email us for straight advice and a fixed quote.
What we need to know
Many jobs can be priced from pictures and some basics. Useful things to send:
- The times we could work without disrupting the site
- Any symptoms, from odd noises to smells or leaks
- Your last certificate, test record or report
- Close-ups of filters, grilles, hatches or access panels
If you need AHU cleaning in Patching, give us a ring on 0345 646 2711, or send details by email. 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 normally follows within one working day.
AHU cleaning around Patching
Food Standards Agency records list about 31 schools, colleges and universities and about 39 hospitals, care homes and childcare premises registered as food businesses within about 1.5 miles of central Patching. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. Patching’s nearest hospital, Priory Hospital, is about 1 mile south-east. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. Patching, about 30 miles from central London, is within our usual area. The visit is fixed around your opening hours, not ours.
Hospitals such as Priory Hospital (about 1 mile south-east) show how much a building can rely on clean ventilation, and smaller healthcare sites near Patching are no different.
Patching is about 1 mile north-west of Chelmsford, in Essex. Whatever kind of site you run in Patching, AHU cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Patching is one of 644 towns, villages and districts in Essex we cover for AHU cleaning.
Postcode districts we cover here for AHU cleaning: CM1. You’ll find streets such as First Avenue, Sixth Avenue and Fifth Avenue, all of which we cover for AHU cleaning. Patching sits on or near the A1016, so getting to you is simple for AHU cleaning. We also cover the places around Patching: Chelmsford (1 mile south-east), Broomfield (2 miles north), Moulsham (2 miles south), Chignall St James (2 miles west) and Writtle (2 miles south-west). Further out, we also cover Basildon (12 miles south), Braintree (10 miles north-east), Harlow (15 miles west), Brentwood (11 miles south-west), Maldon (9 miles east) and Billericay (9 miles south).
Landmarks near Patching
We work in commercial kitchens and buildings around The Red Beret pub, Chelmer Valley Riverside and St Pius X Catholic Primary School, among other places. The nearest railway station is Chelmsford station, roughly 1 mile south of the centre. Well-known places in the area include Bond Street Chelmsford (1.2 miles south) and Priory Hospital (1 mile south-east). Open spaces near Patching include Newland Grove.
How the visit works
We work around your opening hours, not the other way round. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. Once we’re in, the area is sheeted and anything that has to be off is turned off and cooled, and the work takes a single shift for a typical unit, longer for large or heavily soiled ones. Because the survey comes first, a visit to Patching can normally be finished without a second trip.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- The fan and drain tray are cleaned and the drain checked.
- After pictures are taken and the certificate issued.
Before we arrive
- Allow time for equipment near the work to be turned off and cool down
- Tell us the best time to work, such as after service or at a weekend
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
Get a fixed quote
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Add the site type and your opening hours, and we can price many jobs without a visit.
Read more
What AHU cleaning cannot fix
An honest diagnosis matters more to us than a booking, so here’s what AHU cleaning will not do:
- Controls and BMS settings that run the unit
- Dirty ducts beyond the unit itself
- Breakdowns that need a mechanical engineer
If in doubt, phone us on 0345 646 2711 or drop us a line and we’ll say what we think.
Parts of the system we cover
- Drain trays
- Filter sections
- Dampers and louvres
- Supply and extract fans
- Internal panels
- Heating and cooling coils
Between visits
Once we’ve finished, these simple steps help:
- Check the drain tray is emptying during routine visits
- File each AHU report in the maintenance log
- Change filters on schedule and log each change
- Keep the area around the fresh air intake clear
Stick to the filter change schedule, as that does more than anything to keep the unit clean. Record each change in the maintenance log.
Regular filter changes are the best protection an AHU has. Overloaded filters let more dirt through to the coils and fan.
Do you need AHU cleaning in Patching?
Wherever there’s a cooling coil, there’s condensate. A blocked outlet or a badly sloped tray leaves standing water, and that’s where slime and odours start.
Clients typically contact us after spotting one of these:
- Drain trays holding standing water
- Plant that has been serviced but not cleaned
- Leaves and litter drawn into the unit
- Plant that needs cleaning after a refit
If you manage a school such as St John Payne Catholic School, ventilation cleaning is best booked for the holidays.
What your quote should include
- Whether the price is fixed
- Whether they recommend a next date
- Whether inaccessible sections are listed on the report
- Proof of insurance
Common questions in Patching
Can you get to a site in Patching?
Yes. Patching is within the area we cover across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can a school’s ventilation in Patching be done out of term time?
Yes, and it’s the easiest time to do it. The FSA’s register shows about 31 schools and colleges with food registrations within roughly a mile and a half of Patching. Send us your term dates when you ring 0345 646 2711, or email photos, and we’ll fit the work in.
Do you repair air handling units?
Mechanical repairs to the unit are for your HVAC maintenance contractor. We clean the unit and report anything we see that needs attention.
Can you look after several sites?
Yes. You deal with one contact for every site in our area, and visits can be set on a regular cycle.
What do you do to protect the area?
With sheeting and covers, before anything else happens. We keep the work contained and clean down when we finish.
How far ahead should we book?
That depends on the slot you want and the size of the job. Mention your preferred dates with your enquiry, and for anything urgent, ring our 24/7 emergency line.
Can you price the work without visiting?
Often, yes. With good pictures, the site type and your last report, we can price many jobs. Larger or hidden systems need a survey on site first.
What information do you need?
A short description and a few photos plus the address and your hours. We will ask for anything else we need.