Greater London · Air handling unit cleaning
Air handling unit cleaning in Downham, Greater London
Professional AHU cleaning in and around Downham, booked around your opening hours and finished with a written report and photos.
- Blocked condensate drains and slimy trays
- Coils clogged with dust and debris
- Air handling units due a clean after building work
What we do, step by step
Everything the job needs comes with us, from protective sheeting to tools and access equipment. You only need to give us clear access and switch off what needs to be off. The visit takes a single shift for a typical unit, longer for large or heavily soiled ones. Most London sites can’t stop for the day, so work in Downham is usually done overnight, early in the morning or at weekends.
- 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.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
How to prepare
- Make sure someone can let us in and lock up afterwards
- Mention any parking or loading restrictions
- Find the previous report, if there is one
Ask for a quote
Need a price for AHU cleaning? Please phone us on 0345 646 2711, or email photos with a few details about the site. We’ll explain what we’d do and send a fixed quote before anything is booked.
Advice
AHU cleaning for kitchens and businesses in Downham
Where a building in Downham has had little more than filter changes, there may be dirt on the coils, fan and casing that nobody has looked at. A full AHU clean takes in the whole unit. The work covers heating and cooling coils, filter sections and drain trays, and common reasons people get in touch are leaves and litter drawn into the unit and fan sections that haven’t been cleaned in years.
London buildings often depend on air handling units in plant rooms or on the roof to supply fresh air. For a building in Downham, dust settles in the units and ducts year after year, which is what TR19® Air cleaning deals with.
The report is your system’s health record: dated, with photos, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Place
- Downham (BR1, SE6, SE12)
- Wider area
- Greater London
- Paperwork
- Photo report after each visit
- Quotes
- A fixed price before we start
- Working hours
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
When something else is needed
We’d rather tell you now than book work that won’t help, so these are the things it will not cover:
- Problems with the unit’s controls or sensors
- Airflow problems caused by the system’s design
- Mechanical faults with motors, belts or bearings
Not sure which it is? You can phone us on 0345 646 2711 or drop us a line and we will tell you honestly.
Parts of the system we cover
- Drain trays
- Heating and cooling coils
- Supply and extract fans
- Internal panels
- Dampers and louvres
- Filter sections
Also near Downham
What else we do in Downham
Looking after it afterwards
Good habits slow the build-up between visits. A few tips:
- File each AHU report in the maintenance log
- Look at the condensate drain whenever the unit is serviced
- Keep filter changes on time and recorded
- Clear leaves and litter away from the intake
Photos in the report cover the filters, coils, drain tray, fan and casing, along with anything we couldn’t reach. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Don’t let leaves, litter or stored materials build up near the fresh air intake. Anything around the intake is likely to be drawn in.
Staff cleaning versus specialist work
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you can’t see still need a specialist at the right interval.
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they don’t reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
What affects the cost of AHU cleaning
Your quote is based on your site. We consider:
- Whether it’s a one-off visit or part of a schedule
- Travel, parking and unloading
- The condition we find in the survey
- When the work can happen, such as evenings, overnight or weekends
Working hours, access and the scale of the site can all change the price. Each of those is built into the quote, and the price is fixed before work begins.
Helping us quote
When you call or email, it’s useful to have:
- The site address and the type of premises
- Photos showing the whole system and its surroundings
- Close-ups of filters, grilles, hatches or access panels
- Where the plant sits or the system leaves the building, such as a roof or outside wall
If you need AHU cleaning in Downham, phone us on 0345 646 2711, or email photos. Let us know the site type and the opening hours, plus photos or the previous report if they’re to hand. We usually send a fixed quote within one working day.
Multi-site and managed buildings
Whether it’s one building or many, the standard is the same: diagnosis, a fixed price, work booked around your hours and a written report with photos.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
What we are called out for in Downham
Mechanical servicing keeps a unit running, but it does not always include cleaning the inside. So a unit can be well maintained and still dirty.
Most sites get in touch after spotting one of these:
- Units needing a clean before a new tenant or handover
- Dirty fans and fan housings
- Dirty coils holding back the airflow
- Dirty filters cutting the airflow
For schools like Rangefield Primary School, the holidays are the usual time to inspect and clean ventilation.
What your quote should include
- If they look at the system before pricing
- Proof of insurance
- How VAT is shown on the quote
- Whether inaccessible sections are listed on the report
Questions from Downham
Do you do school ventilation cleaning in Downham in the summer holidays?
Yes. Half-terms and the summer break are the natural time for school work. With about 22 schools and colleges on the FSA’s register within roughly a mile and a half of Downham, it pays to plan holiday dates ahead. Just call us on 0345 646 2711, or email photos with your term dates and we will plan around them.
How do you handle parking and loading in Downham?
Tell us where a van can stop near your site in Downham, and about any building rules on loading. Where restrictions apply in the day, an evening or overnight visit normally gets round them.
How long will the unit be out of action?
As a guide, it takes half a day to a full day per unit, with large plant planned over several shifts. The shutdown is planned to fit, out of hours if needed.
How far ahead should we book?
Earlier is better, particularly for night and weekend visits. Quotes typically come back within one working day, and there’s a 24/7 line for emergencies.
Which accreditations do you hold?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We are fully insured and have been trading since 2009.
What should I send you?
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 drop us a line.
Do you have a 24/7 line?
Yes. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line, and we’ll advise on what to do next.
How do you protect the area?
We start with protection: sheeting over floors, worktops and anything close to the work. The area is left tidy, with our waste taken away.
AHU cleaning around Downham
There are about 22 schools, colleges and universities, about 63 caring premises (care homes, nurseries and hospitals) and about 3 hotels, B&Bs and guest houses on the FSA’s food hygiene register in Downham and the streets around it, up to about 1.5 miles out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. About 2.1 miles south of Downham is Bromley Hospital, the nearest hospital. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital. In London, ventilation plant is often on the roof or below ground, so the work is typically done out of hours.
If you run a surgery, dental practice or care home near Downham, clean ventilation matters as much to you as to a hospital like Bromley Hospital (about 2.1 miles south). For workplaces around Grove Park station with mechanical ventilation, cleaning can be done in the evening or at weekends.
Downham is about 2 miles north of Bromley, in Greater London. We carry out AHU cleaning for businesses, landlords and public buildings in Downham and the rest of Greater London. Our area takes in 764 places across Greater London, large and small. You can also see our page for London, about 7 miles away.
All of BR1, SE6 and SE12 is covered for AHU cleaning, from the main roads to the quietest streets. You’ll find streets such as Shaw Road, Arcus Road and Brook Lane, and we cover them all for AHU cleaning. Other places close to Downham include Plaistow (1 mile south), Grove Park (1 mile north-east), Sundridge (1 mile south-east), Chinbrook (1 mile east) and Bellingham (1 mile west). Larger places within reach include London (7 miles north-west), City of Westminster (9 miles north-west), Marylebone (9 miles north-west), Kensington (10 miles north-west), St Pancras (9 miles north-west) and Shoreditch (8 miles north-west).
Local landmarks in Downham
We work in commercial kitchens and buildings around Holy Trinity College Bromley, Downham Fields and Bonus Pastor Catholic College and the streets around them. Downham’s nearest station is Grove Park station, roughly 0.8 miles north-east. Well-known places in the area include The Glades (1.6 miles south) and Greenwich Castle (3.6 miles north). Open spaces near Downham include Summer Hill and Downham Woodland Walk.