Greater London · Air handling unit cleaning
AHU Cleaning in Telegraph Hill
Need AHU cleaning in Telegraph Hill? We survey first, give you a fixed quote and work around your opening hours, finishing with a written report and pictures.
- Air handling units never cleaned inside
- Blocked condensate drains and slimy trays
- Dust-coated heating and cooling coils
About our AHU cleaning in Telegraph Hill
An AHU clean is a thorough examination and treatment of the unit. We look inside each section, clean what we find and record it with pictures, so you can see the unit’s condition for yourself. If you’re dealing with units that have only ever had filter changes and leaves and litter drawn into the unit, we can help.
London buildings often depend on air handling units in plant rooms or on the roof to supply fresh air. In a building in Telegraph Hill, dust and debris build up in the units and ductwork over time, which is what TR19® Air cleaning deals with.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Place
- Telegraph Hill (SE4, SE15, SE14)
- Wider area
- Greater London
- Reporting
- Report and photos after the visit
- Quote
- A fixed price before work begins
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
Different parts, different methods
Fans and fan sections
The fan moves all of the unit’s air, so dirt on it gets spread around. The impeller, its housing and the fan chamber are cleaned.
Filters
Clogged filters reduce airflow, and dirt can get round the edges. We clean the frames and rails so the filters sit tight.
What AHU cleaning looks like in Telegraph Hill
Going by the FSA’s register, there are about 76 schools, colleges and universities, about 77 care, childcare and hospital premises and about 8 hotels and guest houses serving food in Telegraph Hill and the streets around it, up to about 1.5 miles out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. About 0.6 miles north-west of Telegraph Hill is Southwark Adult Education Institute, the nearest hospital. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. Many London buildings have had their ductwork altered through several fit-outs, so an inspection comes first.
School buildings such as Haberdashers' Hatcham College are typically done in the holidays, so classrooms aren’t disturbed. If you manage offices or shops near Brockley station, their ventilation can be inspected and cleaned out of hours.
Telegraph Hill is about 1 mile south-west of New Cross, in Greater London. Wherever you are in the SE4 postcode area, we can carry out AHU cleaning at your premises. Across Greater London, we cover 764 places, and Telegraph Hill is one of them.
Every address in SE4, SE15 and SE14 is within our area for AHU cleaning, from the main roads to the quietest streets. If you need AHU cleaning at premises on Mona Road, Pepys Road and Kitto Road or a nearby road, we can help. We also cover the places around Telegraph Hill: Nunhead (1 mile south-west), New Cross (1 mile north-east), Peckham (1 mile north-west), St Johns (1 mile east) and Brockley (1 mile south-east). Further out, we also cover London (3 miles north-west), City of Westminster (6 miles north-west), Marylebone (6 miles north-west), Kensington (7 miles west), St Pancras (5 miles north-west) and Shoreditch (4 miles north).
Near you in Telegraph Hill
We work in commercial kitchens and buildings around Fordham Park and The Brockley Barge pub. There’s a railway station in Telegraph Hill itself: Brockley station. Well-known places in the area include Southwark Adult Education Institute (0.6 miles north-west) and Lewisham Shopping Centre (1.4 miles east). For a walk, there’s St. James's Park Lake and New Cross Gate Cutting.
Fixed quotes for AHU cleaning in Telegraph Hill
There’s no set price list, because sites vary so much. What we look at:
- Travel, parking and unloading
- When the work can happen, such as evenings, overnight or weekends
- The number of sites or systems
- Any permits to work or inductions
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we will explain each part.
What we need to know
A few details help us quote accurately. When you get in touch, it helps to send:
- Any previous report or certificate
- A few general shots of the system
- Problems your staff have spotted
- Any access panels or hatches you can see
To get a fixed quote, ring 0345 646 2711 or use the quote form and tell us the type of site, your opening hours and roughly what the system looks like. A few pictures and your last certificate or report help a lot. You’ll usually have a quote within one working day.
Aftercare tips
Good habits slow the build-up between visits. A few tips:
- File each AHU report in the maintenance log
- Report musty smells from the vents straight away
- Report water on the plant room floor
- Check the drain tray is emptying during routine visits
Photos in the report cover the filters, coils, drain tray, fan and casing, and note any part we couldn’t get to. It also notes faults we spotted, such as damaged panels or a blocked drain.
Do not let leaves, litter or stored materials build up near the fresh air intake. Anything around the intake is likely to be drawn in.
In-house cleaning or a specialist?
Staff cleaning and specialist work are not the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but they do not reach the grease that builds up further in. That part needs specialist access and equipment.
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We’ll take a look and send you a fixed quote.
For landlords and multi-site operators
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, which may be the employer, owner, landlord, FM or managing agent. Where responsibility is shared, records matter even more.
Whether it’s one building or many, the standard is the same: a survey first, a fixed quote, the work timed around the site and a report with pictures.
More services for Telegraph Hill
Common questions in Telegraph Hill
Can parking be tricky for a job in Telegraph Hill?
London parking can be tight, so details of loading bays and permits help. Night visits tend to make loading easier on London streets.
Can you clean school ventilation in Telegraph Hill during the holidays?
Yes, holiday work suits schools best. With about 76 schools and colleges on the FSA’s register within roughly a mile and a half of Telegraph Hill, it pays to plan holiday dates ahead. Tell us your holiday dates and we’ll book the visit for when the site is empty.
Will you repair the fan or motor?
Motors, belts, controls and coils that need repair are a job for your maintenance contractor. We’ll flag anything we notice during the clean.
Do you need to switch the unit off?
Yes. The fan must be stopped and the unit isolated, and we time the work to suit the site.
Where does the waste go?
Anything we remove is contained as we work and taken away with us, including grease, debris and dirty water. We don’t leave it behind.
What accreditations do you have?
Our accreditations are CHAS, SafeContractor and ISO 9001, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.
Can one contract cover all our sites?
Yes. You deal with one contact for every site across London and the South East, with visits on a regular schedule.
How often should an air handling unit be cleaned?
It depends on the unit, the filters and how the building is used. Inspection tells you when cleaning is needed, and we’ll suggest an interval after the first clean.
How it works
We work around your opening hours, not the other way round. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. Once we’re in, the area is sheeted and anything that has to be off is turned off and cooled, and the work takes one overnight shift for many single units, with bigger plant phased. Night and weekend working is normal for us in London, and a site in Telegraph Hill is no exception.
- The survey covers the unit, its access and how it can be shut down.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
Getting ready for the visit
- Plan for cooking equipment or plant to be off before we arrive
- Arrange a key holder or contact on site
- Clear the space around the work
Getting a quote
Getting a quote doesn’t take long. Send a few details and pictures, and we normally reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Related advice
Do you need AHU cleaning in Telegraph Hill?
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. Most of it lands at the intake and the first stage of filters, and the finer material travels on.
Most sites get in touch after spotting one of these:
- Rooms that smell stuffy when the system runs
- Intake sections clogged with outdoor debris
- Coils clogged with dust and debris
- Dirty filters cutting the airflow
If you run a surgery, dental practice or care home near Telegraph Hill, clean ventilation matters as much to you as to a hospital like Southwark Adult Education Institute (about 0.6 miles north-west).
What your quote should include
- Whether the price is fixed
- Whether the quote is based on a survey or photos
- Which accreditations they hold, and whether you can check them
- What happens if part of the system cannot be accessed