Essex · Air handling unit cleaning
Herongate AHU cleaning
We cover Herongate for air handling unit cleaning. Out-of-hours visits, a fixed quote and a written report with pictures as standard.
- Plant that has been serviced but not cleaned
- Dirty filters cutting the airflow
- Dust-coated heating and cooling coils
AHU cleaning in Herongate
Where a building in Herongate has had little more than filter changes, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full clean deals with all of it. If you’re dealing with odours coming through the supply air and dust-coated heating and cooling coils, we can put it right, from filter sections, heating and cooling coils and drain trays onwards.
In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.
For insurers and inspectors, the record counts. So every job comes with a written report and photos, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Location
- Herongate (CM13)
- Wider area
- Essex
- Paperwork
- Report and pictures after the visit
- Quotes
- A fixed price before any work starts
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Part by part
Heating and cooling coils
A dirty coil holds back the air and makes heating and cooling less effective. Cleaning restores the open path through the fins.
Filters
What’s on the filters is a good clue to what’s further in. They’re photographed before and after for your records.
Nearby places to Herongate
What else we do in Herongate
AHU cleaning around Herongate
The FSA’s food hygiene register lists about 3 schools, colleges and universities and about 4 hospitals, care homes and childcare premises with registered kitchens or food service in and around Herongate, up to about a mile and a half out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. Brentwood Community Hospital is the nearest hospital, about 2.4 miles north-west of Herongate. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. Herongate, about 20 miles from central London, is within our usual area. We work evenings, overnight and at weekends, so the visit fits around the site.
Healthcare buildings such as Brentwood Community Hospital, about 2.4 miles north-west, depend on their ventilation; if you manage a surgery, clinic or care home near Herongate, yours matters too.
Herongate is about 3 miles south-east of Brentwood, in Essex. Whether your site is in the middle of Herongate or further out, we cover AHU cleaning for every kind of premises, from a single unit to a large public building. Across Essex, we cover 644 places, Herongate among them. Our Chelmsford page covers sites nearby, about 11 miles away.
We cover every part of the CM13 postcode area for AHU cleaning and the streets around it. That includes premises on Brentwood Road, Hernshaw and Cricketers Row and nearby roads. Neighbouring places we cover for AHU cleaning include East Horndon (1 mile south), Childerditch (2 miles south-west), West Horndon (2 miles south), Little Warley (2 miles south-west) and Bulphan (3 miles south). Within a short drive, we also cover Chelmsford (11 miles north-east), Basildon (5 miles east), Brentwood (3 miles north-west), Canvey Island (11 miles south-east), Billericay (4 miles north-east) and Rayleigh (11 miles east).
Local landmarks in Herongate
Around Herongate, our work takes us to kitchens and buildings near Green Man Inn. For rail, the closest station is West Horndon station, about 2 miles south. A little further out are Brentwood Community Hospital (2.4 miles north-west). The countryside around Herongate includes Thorndon Park.
What we are called out for in Herongate
Mechanical servicing keeps a unit running, but it doesn’t always include cleaning the inside. So a unit can be well maintained and still dirty.
Keep an eye out for these warning signs:
- Rooms that smell stuffy when the system runs
- Coils clogged with dust and debris
- Dust built up on fan impellers
- Plant that has been serviced but not cleaned
School buildings such as Brentwood County High School are usually done in the holidays, so classrooms aren’t disturbed.
What to look for in a quote
- When the next visit should be, and why
- How areas they cannot reach will be recorded
- What hours they’ll be on site
- Whether the figure could change on the day
What happens on the day
When we arrive, we check the system against the survey or the pictures 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 Herongate and turn up when the site is quiet.
- We look at the unit and the plant area during the survey.
- The area is protected and the unit made safe.
- Each section is cleaned of dust, debris and slime.
- 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
- Clear the space around the work
- Have your last certificate or report to hand
- Name a contact who can let us in at the agreed time
How to get a quote
For a fixed quote, give us a ring on 0345 646 2711 or use the quote form with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. You will typically have a quote within one working day.
Read more
Your questions about AHU cleaning in Herongate
Can a school’s ventilation in Herongate be done out of term time?
Yes, and it’s the easiest time to do it. Around Herongate, the Food Standards Agency lists about 3 schools and colleges with registered kitchens within a mile and a half or so. Booking early in the term gives the best choice of holiday dates.
Can you get to a site in Herongate?
Yes, Herongate is part of our area, however small the site. The journey is planned ahead, so a few details about the route help.
What information do you need?
Only a few details: the address, the site type, your opening hours and how we reach the system. Photos and the last report help too. Then call 0345 646 2711, or send details by email.
What happens if you can’t reach some of it?
We record them on the report, with pictures where possible, and we explain what access is needed, such as extra access panels in ductwork.
Where does the waste go?
We contain it and take it with us. We collect grease, debris and waste water as we go, so it doesn’t spread.
What does TR19 mean?
TR19® is BESA’s specification for ventilation hygiene. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Is a quote from photos possible?
Yes, where the pictures show enough. If not, a site survey comes first, and the quote follows that.
Is there a report after cleaning?
Yes, a TR19® certificate and a photo report. It includes a recommended date for the next check.
What happens if it’s left?
Cleaning a unit while it only has light dust is quick. Years of build-up make the job longer and harder, especially where there’s been moisture. Planning a trip to Herongate ahead is easier for everyone than a rushed one.
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. The price is fixed before we start.
Why Herongate businesses choose us
- Trading since 2009
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Every visit written up, with photos
- One number for every site across the South East and London
Take a look at what affects the cost or how to check a contractor.
In-house cleaning or a specialist?
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We’ll take a look and send you a fixed quote.
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. That is our job.
When it’s something else
In fairness, some problems need a different fix:
- Ventilation that was badly designed in the first place
- The supply and extract ducts, quoted separately
- Leaking heating or cooling coils
If in doubt, phone us on 0345 646 2711, or send details by email and we’ll say what we think.
What the work covers
- Supply and extract fans
- Internal panels
- Drain trays
- Filter sections
- Dampers and louvres
- Heating and cooling coils
For landlords and multi-site operators
Multi-site operators often want one contractor and one number. We cover South East England and London, so visits at different addresses can be planned together and kept to a regular schedule.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. With shared responsibility, good records help everyone.