Essex · Air handling unit cleaning
Air handling unit cleaning in Marden Ash, Essex
Need AHU cleaning in Marden Ash? We survey first, give you a fixed quote and work around your opening hours, finishing with a written report and photos.
- Blocked condensate drains and slimy trays
- Air handling units never cleaned inside
- Dust built up on fan impellers
AHU cleaning in Marden Ash
Units vary a lot in size, age and layout, from a small ceiling-mounted unit to a large rooftop plant. Every job starts with a survey, from photos or on site, followed by a fixed quote before any cleaning starts. We’re often asked to deal with rooms that smell stuffy when the system runs and air handling units due a clean after building work, across heating and cooling coils, dampers and louvres and supply and extract fans.
In a village or hamlet like Marden Ash, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
The report is your system’s health record: dated, with photos, and showing what was done. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal, ready for your insurer.
- Where
- Marden Ash (CM5)
- Wider area
- Essex
- Reporting
- Photo report after every visit
- Price
- A fixed price before we start
- When we work
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Questions from Marden Ash
Do you work overnight in Marden Ash?
Yes, evening, overnight and weekend work is normal for us. The site is handed back ready to open. When you ring 0345 646 2711 or drop us a line, mention when the site is quiet.
Can ventilation in schools around Marden Ash be cleaned out of term?
Yes. The holidays are the usual time for school work. Food Standards Agency records list about 2 schools, colleges and universities with registered kitchens within about a mile and a half of Marden Ash. Send us your term dates when you give us a ring on 0345 646 2711, or email photos, and we will fit the work in.
Do you work with multi-site operators?
Yes. One number covers all your sites across London and the South East, and visits can be set on a regular cycle.
What do you need from me for a quote?
Only a few details: where it is, what kind of site, when it’s open and the access. Photos and any previous paperwork make it quicker. Then ring 0345 646 2711 or use the quote form.
Do you offer maintenance contracts?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, depending on what the system needs.
What’s TR19?
BESA’s ventilation hygiene specification, with two parts that matter most here: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It isn’t legislation, but it’s the standard people check against.
What if parts of the system can’t be reached?
The report shows them clearly. Often the fix is extra access, such as new panels in ductwork, and we can fit those.
Do you have insurance?
Yes. We are fully insured, and the details are available on request.
What your team can do, and what needs us
Staff cleaning does not replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but the parts you cannot see still need a specialist at the right interval.
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 will take a look and send you a fixed quote.
Landlords, agents and facilities managers
We also work for facilities teams across offices, schools and healthcare in Marden Ash and across Essex. Larger estates can be phased building by building around the people who use them.
Keeping records across a portfolio is half the battle. Each visit ends with a dated report and photos, so you can show an insurer or inspector what was done at each site.
What affects the cost of AHU cleaning
Sites vary more than people expect. The main factors:
- Whether we need access equipment or extra panels
- How many systems or sites are involved
- When the work can happen, such as evenings, overnight or weekends
- How big the system is
Putting the work off seldom saves money. Problems in a system tend to grow, and a neglected system can mean more work. If you’re not sure what’s needed, phone us on 0345 646 2711 or drop us a line and we will give you an honest view and a fixed quote.
Helping us quote
There’s no need for technical detail. Just send:
- The postcode and the type of business
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Any access panels or hatches you can see
- The paperwork from the last visit, if you have it
We don’t publish a price list, because no two systems are the same. We look at your system first, from pictures or on a visit, then send a fixed quote. To start, give us a ring on 0345 646 2711, or send details by email.
What happens on the day
Protection comes first: floors, worktops and anything near the work are covered. Then we make the system safe and start. It takes half a day to a full day per unit, with large plant planned over several shifts, and the area is cleaned down before we leave. Somewhere like Marden Ash, lanes, gates and parking are worth mentioning in advance.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before pictures of each section of the unit.
- We work through the unit from the intake to the outlet.
- The fan and drain tray are cleaned and the drain checked.
- We take after photos and issue the certificate and report.
Preparing for the visit
- Find the previous report, if there is one
- Let us know when the site is closed or quiet
- Mention any sign-in, permit or induction we need
Getting a quote
Getting a quote doesn’t take long. Call or email with a few details and you will usually have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.
Related advice
Places near Marden Ash
What else we do in Marden Ash
AHU cleaning in Marden Ash: local notes
There are about 4 hospitals, care homes and childcare premises on the FSA’s food hygiene register across Marden Ash and its immediate surroundings (about a mile and a half). Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Marden Ash, about 20 miles from central London, is within our usual area. Visits are booked around your hours, evenings and weekends included. The nearest hospital to Marden Ash is St. Margaret's Hospital, about 5.2 miles west. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
For schools like Chipping Ongar Primary School, the holidays are the usual time to inspect and clean ventilation.
Marden Ash is about 6 miles north-west of Brentwood, in Essex. We carry out AHU cleaning for businesses, landlords and public buildings in Marden Ash and the rest of Essex. Marden Ash is one of 644 places in Essex we cover for AHU cleaning. Our Chelmsford page covers sites nearby (11 miles or so).
All of CM5 is within our area for AHU cleaning, from busy streets to back roads. If you need AHU cleaning at premises on Rodney Road, Fairfield Road and Brentwood Road or anywhere close by, our technicians can take on the work. You will find Marden Ash on the A128, so it’s easy for us to get to for AHU cleaning. Other places close to Marden Ash include Stanford Rivers (1 mile south-west), Little End (1 mile south-west), Hare Street (2 miles south-west), Clatterford End (2 miles west) and Paslow Wood Common (2 miles east). Larger places within reach include Chelmsford (11 miles east), Basildon (13 miles south-east), Harlow (7 miles north-west), Brentwood (6 miles south-east), Billericay (9 miles south-east) and Loughton (8 miles south-west).
Local landmarks in Marden Ash
Around Marden Ash, our work takes us to kitchens and buildings near The Ongar Academy and Two Brewers Public House. A little further out are Willingale Doe (4.8 miles north-east) and St. Margaret's Hospital (5.2 miles west). Open spaces near Marden Ash include Gernon Bushes.
Honest limits
Before booking, it helps to know what’s not included:
- Coils that are corroded or leaking and need replacing
- Mechanical faults with motors, belts or bearings
- Airflow problems caused by the system’s design
If in doubt, phone us on 0345 646 2711, or email photos and we’ll say what we think before you book.
What the work covers
- Heating and cooling coils
- Internal panels
- Drain trays
- Dampers and louvres
- Filter sections
- Supply and extract fans
Signs you need AHU cleaning in Marden Ash
Mechanical servicing keeps a unit running, but it doesn’t always include cleaning the inside. That means a unit can tick every service box and still be carrying years of dirt.
Clients usually contact us after spotting something like this:
- Filters that are clogged or overdue
- Dirty fans and fan housings
- Rooms that smell stuffy when the system runs
- Blocked condensate drains and slimy trays
If you run a surgery, dental practice or care home near Marden Ash, clean ventilation matters as much to you as to a hospital like St. Margaret's Hospital (about 5.2 miles west).
What your quote should include
- Whether the figure could change on the day
- What paperwork you get at the end
- How VAT is shown on the quote
- When the next visit should be, and why
Looking after it afterwards
Looking after the system between visits is straightforward, and it helps at the next visit:
- Don’t ignore odours coming through the grilles
- Plan the next inspection before the last report gets filed away
- Make sure condensate is draining away
- Keep inspection doors on the unit in good order
Once the clean is done, we send a TR19® certificate and a report with before and after pictures. Keep both with the building’s maintenance records.
Make sure access doors and panels on the unit open easily. If a section is hard to get into, it tends not to get checked.