Greater London · Air handling unit cleaning
AHU Cleaning in Middle Park
AHU cleaning in Middle Park from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Blocked condensate drains and slimy trays
- Coils clogged with dust and debris
- Air handling units with blocked filters
How we handle AHU cleaning in Middle Park
The fan pushes every bit of air in the system, so dirt on the impeller and housing gets spread around. Fan, housing and the surrounding panels are cleaned as part of the job, with the unit switched off and made safe first. If you’re dealing with dirty coils holding back the airflow and dust built up on fan impellers, we can put it right.
London buildings tend to keep their plant on the roof or below ground, so ventilation cleaning in Middle Park is normally planned out of hours. Parking and loading are agreed with the building in advance.
Nothing is signed off by word of mouth: 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.
- Location
- Middle Park (SE9, SE12)
- Region
- Greater London
- Reporting
- Report and photos after the visit
- Quote
- Fixed quote, typically within a working day
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
Aftercare tips
Once we’ve finished, these simple steps help:
- Keep filter changes on time and recorded
- Keep the area around the fresh air intake clear
- Look at the condensate drain whenever the unit is serviced
- Diary the inspection date recommended in the report
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 make sure it stays clear.
Regular filter changes are the best protection an AHU has. Overloaded filters let more dirt through to the coils and fan.
What staff can safely do
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
Keep a record of what your team does. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, next to our reports.
What we do, step by step
The first job on site is protection: floors, worktops and anything near the work are covered. Then we make the system safe and start. It takes from a few hours for a compact unit to a day or more for a large one, and we clear up before we go. Most London sites can’t stop for the day, so work in Middle Park is usually done overnight, early in the morning or at weekends.
- We start with a survey of the unit and a fixed quote for the work.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- We clean out the drain tray and make sure it drains.
- A TR19® certificate and photo report follow the clean.
Getting ready for the visit
- Clear loose items from the work area
- Dig out any earlier paperwork for the system
- Mention any parking or loading restrictions
Get a fixed quote
Some systems can be priced from pictures; others need a survey. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, the quote is fixed before any work is booked.
Related advice
What AHU cleaning looks like in Middle Park
There are about 42 schools, colleges and universities and about 46 caring premises (care homes, nurseries and hospitals) on the FSA’s food hygiene register in and around Middle Park, up to about a mile and a half out. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. Ventilation cleaning in London buildings is usually planned for evenings or weekends. Middle Park’s nearest hospital, Eltham Community Hospital, is about 0.7 miles north-east. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
For schools like Middle Park Primary School, the holidays are the usual time to inspect and clean ventilation. Healthcare ventilation, from large hospitals like Eltham Community Hospital (about 0.7 miles north-east) to small clinics, depends on clean filters, coils and ducts. Workplaces around Mottingham station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts.
Middle Park is about 1 mile west of Eltham, in Greater London. Every kind of commercial site in Middle Park, AHU cleaning is something we can help with. We can work out of hours so the site keeps running. Our area takes in 764 places across Greater London, from busy centres to quieter spots. You can also see our page for London, about 7 miles away.
We cover every part of the SE9 and SE12 postcode area for AHU cleaning and the roads nearby. If you need AHU cleaning at premises on Horsa Road, Court Road and Sidcup Road or anywhere close by, our technicians can take on the work. Main roads around Middle Park include the A20, so getting to you is simple for AHU cleaning. Neighbouring places we cover for AHU cleaning include Horn Park (1 mile west), Eltham (1 mile east), Mottingham (1 mile south), Well Hall (1 mile north-east) and Chinbrook (1 mile south). We also work in nearby towns such as London (7 miles north-west), City of Westminster (10 miles north-west), Marylebone (9 miles north-west), Kensington (11 miles west), St Pancras (9 miles north-west) and Shoreditch (8 miles north-west).
Around Middle Park
In Middle Park, that means kitchens and buildings near Harris Academy Greenwich, Horn Park and The Banker's Draft pub. The closest station to Middle Park is Mottingham station, roughly 0.5 miles south-east of the centre. A little further out are Greenwich Castle (2.9 miles north-west) and Prefab Museum (1.9 miles west). Open spaces near Middle Park include Summer Hill and The Tarn.
Part by part
Internal casing and panels
Loose or damaged linings inside a unit can break up into the airstream. Anything like that is recorded with photos.
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. Cleaning restores the open path through the fins.
What affects the cost of AHU cleaning
We do not publish a price list, because sites vary so much. The quote depends on:
- When the work can happen, such as evenings, overnight or weekends
- Whether it’s a one-off visit or part of a schedule
- Where the site is and how we reach it
- What state the system is in
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, and a neglected system can mean more work. If you are unsure, call us on 0345 646 2711 or send us an email for straight advice and a fixed quote.
Helping us quote
The more you tell us, the more accurate the quote. With your enquiry, please include:
- The postcode and the type of business
- The times we could work without disrupting the site
- Problems your staff have spotted
- Your last certificate, test record or report
For AHU cleaning in Middle Park, call 0345 646 2711, or send details by email. Let us know the site type and the opening hours, plus pictures or the previous report if they’re to hand. We normally send a fixed quote within one working day.
Nearby places to Middle Park
More services for Middle Park
When it’s something else
A few issues sit outside what this work can do:
- Damaged coils beyond cleaning
- Faulty motors, drives or bearings
- Problems with the unit’s controls or sensors
Not sure which it is? You can phone us on 0345 646 2711 or use the quote form and we will tell you honestly before booking.
What we work on in Middle Park
- Dampers and louvres
- Supply and extract fans
- Filter sections
- Heating and cooling coils
- Internal panels
- Drain trays
Questions from Middle Park
Do you do school ventilation cleaning in Middle Park in the summer holidays?
Yes, and it’s the easiest time to do it. There are about 42 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Middle Park. Tell us your holiday dates and we will book the visit for when the site is empty.
Can parking be tricky for a job in Middle Park?
Tell us where a van can stop near your site in Middle Park, and about any building rules on loading. Night visits tend to make loading easier on London streets.
How long does an AHU clean take?
The work takes half a day to a full day per unit, with large plant planned over several shifts. Bigger units can be phased, so call us on 0345 646 2711 or send us an email to talk it through.
What do you clean inside the unit?
Every section that collects dirt: filters, coils, tray, fan and panels. The survey confirms what’s in your unit before we quote.
Do you survey before quoting?
Yes. Every job is surveyed first, from your photos and details, or with a visit where necessary. Then you get a fixed quote.
Can you fix a faulty AHU?
Our AHU work is cleaning rather than mechanical repair. If we spot a fault, we note it in the report so your maintenance contractor can deal with it.
Can one contract cover all our sites?
Yes. We work across South East England and London, so we can schedule a run of sites on one programme. Every site has its own report.
Are you accredited?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
Why act early in Middle Park
Dirty coils and fans make the unit strain to move the same air. That means more wear on the motor and rooms that feel less fresh, and a clean on your terms beats a breakdown on nobody’s. Every month a London system goes without attention adds to what has to be done later.
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. You will have a fixed price before work begins.
Why book with us
- Fixed quotes from a survey or pictures
- Trading since 2009
- We diagnose before we treat
- CHAS, SafeContractor and ISO 9001
Take a look at what affects the cost and how to check a contractor.