Greater London · Air handling unit cleaning
Avery Hill AHU cleaning
Air handling unit cleaning in Avery Hill, surveyed first and signed off with a written report and pictures. Ask us for a fixed quote.
- Condensate trays that will not empty
- Coils clogged with dust and debris
- Units that have only ever had filter changes
The process
A visit follows the same order every time: protect the area, isolate whatever needs isolating, carry out the AHU cleaning, clear away and leave you the report. On site, the work takes anything from half a day for one small unit to several shifts for a plant room full of them. Expect the work in Avery Hill to happen after your last customer leaves, not during trading.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- After photos are taken and the certificate issued.
Getting ready for the visit
- Mention any locked doors, roof access or ceiling voids
- Mention any parking or loading restrictions
- Let us know when the site is closed or quiet
Get a fixed quote
We do not publish a price list, because every site is different. Instead, we look at your site first, from photos or a survey, then send a fixed quote. To get going, give us a ring on 0345 646 2711, or email photos.
Advice
AHU cleaning for kitchens and businesses in Avery Hill
If the units serving a building in Avery Hill have only had filter changes for years, there may be dirt on the coils, fan and casing that nobody has looked at. A full clean deals with all of it. If you have air handling units with blocked filters and fan sections that haven’t been cleaned in years, we can help.
London offices and flats often have ductwork added through successive refits, with old runs left behind that are hard to reach. An inspection first shows where cleaning is needed in a building in Avery Hill.
The sign-off is always in writing: a dated report with pictures of the work, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. Any parts we couldn’t reach are recorded on it too.
- Place
- Avery Hill (SE9, DA15, DA16)
- Region
- Greater London
- Reporting
- Report and pictures after the visit
- Price
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Questions from Avery Hill
Can a school’s ventilation in Avery Hill be done out of term time?
Yes, and it’s the easiest time to do it. Food Standards Agency records list about 48 schools, colleges and universities with registered kitchens within about a mile and a half of Avery Hill. Send us your term dates when you give us a ring on 0345 646 2711 or send us an email, and we will fit the work in.
Does London parking affect a job in Avery Hill?
A loading bay, a visitor permit or off-street space near the site in Avery Hill makes the visit easier to plan. Much of our London work is done overnight, which helps.
What does AHU cleaning cost?
We do not publish prices, because the cost depends on the job: how big it is, what state it’s in, how we reach it and the working hours. You get a fixed price before we start.
Will we get paperwork for the AHU clean?
Yes. You receive a certificate and a report showing each section before and after, including anything we think needs attention.
What’s included in an AHU clean?
All the internal parts the air touches, from the intake and filters through the coils and fan to the outlet. The photo report shows each section before and after.
How long does an AHU clean take?
Typically the clean takes from a few hours for a compact unit to a day or more for a large one. We plan the shutdown around that, including evenings or weekends.
How often do AHUs need cleaning?
Inspection under TR19® Air decides it. Units in heavy use or in sensitive buildings may need attention more often.
What happens to the waste?
Anything we remove is contained as we work and taken away with us, from grease and debris to used cleaning water. None of it is left on site.
Towns and villages near Avery Hill
Also in Avery Hill
Managing agents and facilities teams in Avery Hill
Keeping records across a portfolio is half the battle. Each visit produces a dated report with photos, ready to show insurers, fire officers or EHOs.
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Each site gets its own report and photos, so each one has its own record.
Keeping the system healthy
Once we have finished, these simple steps help:
- Store the TR19 paperwork where auditors can find it
- Report musty smells from the vents right away
- Make sure the unit’s access doors open easily
- Plan the next inspection before the last report gets filed away
If the ductwork hasn’t been cleaned, consider it next. A clean unit feeding dirty ducts only solves half the problem, and we can quote for both.
Regular inspection under TR19® Air shows when cleaning is due, rather than waiting for a problem.
Different parts, different methods
Drain trays
Condensate from the coil drips into a tray beneath it. Standing water and slime are removed and the outlet is checked.
Rooftop and plant room units
Units on roofs and in plant rooms can be awkward to reach. Access is planned during the survey, before we quote.
Why act early in Avery Hill
Leave an AHU uncleaned and the dirt doesn’t stay put. It moves on into the ductwork and out into the rooms, which is why the unit and the ducts are best cleaned together. It’s better booked as a planned job in Avery Hill than handled as an emergency.
Combining work into one visit or one programme can make for a more efficient booking. Mention every system or site you need covered, and you will get one fixed quote.
Why choose Duct Doctor in Avery Hill
- In business since 2009
- We diagnose before we treat
- A written report with photos after every visit
- CHAS and SafeContractor accredited, with ISO 9001
See how cleaning jobs are priced or our accreditations and certificates.
Common problems we fix in Avery Hill
It matters for two reasons: air quality, since the unit feeds occupied rooms, and performance, since dirt makes it strain. For anyone working, learning or staying in a building in Avery Hill, that’s air they breathe for hours at a time.
It’s time to book a visit if you see:
- Units that have only ever had filter changes
- Fan sections that haven’t been cleaned in years
- Drain trays holding standing water
- Units needing a clean before a new tenant or handover
Wherever a school like Stationers' Crown Woods Academy has ducted ventilation, a half-term visit keeps the work out of lesson time.
What your quote should include
- Whether the whole system is included, or only the parts that are easy to reach
- Whether the figure could change on the day
- How VAT is shown on the quote
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
AHU cleaning in Avery Hill: local notes
There are about 48 schools, colleges and universities and about 47 caring premises (care homes, nurseries and hospitals) on the FSA’s food hygiene register within roughly a mile and a half of the centre of Avery Hill. Busy, occupied buildings like these are where clean supply air matters most. The nearest hospital to Avery Hill is Eltham Community Hospital, about 1 mile west. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. London plant rooms are often on roofs or in basements reached through occupied floors.
For workplaces around Falconwood station with mechanical ventilation, cleaning can be done in the evening or at weekends. Healthcare ventilation, from large hospitals like Eltham Community Hospital (about 1 mile west) to small clinics, depends on clean filters, coils and ducts.
Avery Hill is about 1 mile north-east of Eltham, in Greater London. We carry out AHU cleaning for commercial premises of every kind in Avery Hill and the rest of Greater London. Across Greater London, we cover 764 places, Avery Hill among them. You can also see our page for London, roughly 8 miles from Avery Hill.
Every address in SE9, DA15 and DA16 is within our area for AHU cleaning, from busy streets to back roads. Whether your site is on Bexley Road, Glenure Road and Perpins Road or anywhere close by, our technicians can take on the work. Avery Hill sits on or near the A210, so getting to you is simple for AHU cleaning. Close by, we work in Blackfen (1 mile east), Eltham (1 mile south-west), New Eltham (1 mile south), Falconwood (1 mile north-east) and Well Hall (1 mile west). Further out, we also cover London (8 miles north-west), City of Westminster (11 miles north-west), Marylebone (11 miles north-west), Kensington (12 miles west), St Pancras (10 miles north-west) and Shoreditch (8 miles north-west).
Around Avery Hill
Around Avery Hill, our work takes us to kitchens and buildings near Shoulder of Mutton Green and Alderwood Primary School. The closest station to Avery Hill is Falconwood station, about 0.6 miles north of the centre. Well-known places in the area include Greenwich Castle (3.8 miles north-west) and Metropolitan Police Museum (1.7 miles south-east). Not far away are Summer Hill and The Tarn.
What a clean will not put right
AHU cleaning cannot fix everything, and we’ll tell you before we start. It does not solve:
- Mechanical faults with motors, belts or bearings
- Controls and BMS settings that run the unit
- The supply and extract ducts, quoted separately
If you are not sure, just phone us on 0345 646 2711 or send us an email and we’ll give you a straight answer before you book.
What the work covers
- Filter sections
- Drain trays
- Dampers and louvres
- Internal panels
- Supply and extract fans
- Heating and cooling coils