Greater London · Air handling unit cleaning
Air handling unit cleaning in Tower Hill, Greater London
Looking for AHU cleaning in Tower Hill? We survey first, send you a fixed quote and work around your opening hours, finishing with a written report and pictures.
- Condensate trays that won’t empty
- Odours coming through the supply air
- Units that have only ever had filter changes
AHU cleaning in Tower Hill
Drain trays under cooling coils are meant to empty. When the drain blocks, water sits there and the tray turns slimy, in the airstream that feeds the building. Clearing and cleaning the tray is central to every AHU clean. The work covers dampers and louvres, filter sections and drain trays, and the jobs we see most are filters that are clogged or overdue and dirty fans and fan housings.
London offices and flats often have ductwork added through successive refits, leaving sections that are hard to reach and seldom cleaned. In Tower Hill, as elsewhere, cleaning starts with an inspection of what’s there.
The sign-off is always in writing: a dated report with pictures of the work, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. Any parts we couldn’t reach are recorded on it too.
- Location
- Tower Hill (SE1, E1, E1W)
- Region
- Greater London
- Records
- Photo report after each visit
- Quote
- A fixed price before we start
- Hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
When something else is needed
An honest diagnosis matters more to us than a booking, so here’s what AHU cleaning won’t do:
- Ductwork downstream of the unit, which is a separate clean
- Ventilation that was badly designed in the first place
- Coils that are corroded or leaking and need replacing
If you’re not sure, just ring 0345 646 2711 or drop us a line and we will give you a straight answer.
Parts of the system we cover
- Internal panels
- Heating and cooling coils
- Drain trays
- Dampers and louvres
- Supply and extract fans
- Filter sections
Also near Tower Hill
What else we do in Tower Hill
What we’re called out for in Tower Hill
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. The intake section and first filters take the brunt, and the finer material travels on.
The symptoms we are asked about most are:
- Drain trays holding standing water
- Odours coming through the supply air
- Air handling units due a clean after building work
- Air handling units with blocked filters
Workplaces around London Fenchurch Street station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts.
Before booking anyone
- If the quote is a fixed price or an estimate
- Whether the work can be done while the site is closed
- How they set the interval to the next visit
- How VAT is shown on the quote
Why act early in Tower Hill
Cleaning a unit while it only has light dust is quick. Leave it for years and dirt bakes onto coils and casings, especially where there’s been moisture. In a London building, a problem in a duct, damper or fan rarely stays in one unit.
What you pay reflects the actual work. That’s why we survey first, from pictures or on site, and why the quote is fixed before we start.
Why book with us
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Evenings, overnight and weekends, plus 24/7 emergency callout
- CHAS and SafeContractor accredited, with ISO 9001
- We are fully insured
See how cleaning jobs are priced or how to check a contractor.
How it works
The first job on site is protection: floors, worktops and anything near the work are covered. Then we make the system safe and start. The work on site takes a single shift for a typical unit, longer for large or heavily soiled ones, and we clear up before we go. Many London buildings have a managing agent, a security desk or a permit-to-work system, so tell us who to contact in Tower Hill.
- We survey the unit from pictures or on site and agree what’s included.
- We arrange the shutdown with your staff and sheet the area.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Drain trays are cleared and cleaned and the outlet checked.
- A TR19® certificate and photo report follow the clean.
How to prepare
- Tell us about site rules, permits or sign-in
- Make sure equipment near the work can be switched off and left to cool
- Agree a time when the area can be out of use
Ask for a quote
If you need AHU cleaning in Tower Hill, give us a ring on 0345 646 2711, or email photos. Tell us what kind of premises it is and when it’s open, plus pictures or the previous report if they’re to hand. We typically send a fixed quote within one working day.
Related advice
What affects the cost of AHU cleaning
You will get a fixed price before we start. It’s based on:
- Whether several sites go on one quote
- The times the site is available
- Travel, parking and unloading
- How big the system is
Several systems or sites on one quote can make for a more efficient booking. Tell us about everything you’d like looked at, and you’ll get one fixed quote.
What we need to know
Photos and a few facts are often enough to price the work. Useful things to send:
- Close-ups of filters, grilles, hatches or access panels
- Wide photos of the system and the area around it
- The times we could work without disrupting the site
- Where the site is and what kind of site it is
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.
Managing agents and facilities teams in Tower Hill
Facilities teams in offices, schools and healthcare sites book us too across Greater London. Work can be phased by floor, building or site to keep disruption down.
We regularly work with managing agents. Tell us the site, the work and the access arrangements and we’ll come back with a fixed quote.
Ventilation in Tower Hill buildings
There are about 107 schools, colleges and universities, about 60 caring premises (care homes, nurseries and hospitals) and about 81 hotels and B&Bs on the FSA’s food hygiene register within 1.5 miles or so of the middle of Tower Hill. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Tower Hill’s nearest hospital, London Bridge Hospital, is about less than half a mile south-west. 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.
If you manage a school such as The Aldgate School, ventilation cleaning is best booked for the holidays. London Bridge Hospital, about under half a mile south-west, is the nearest hospital to Tower Hill, and healthcare sites of every size need their supply air kept clean.
Tower Hill is about 1 mile north-east of London, in Greater London. Whether your site is in the middle of Tower Hill or further out, we cover AHU cleaning for every kind of premises, from a single unit to a large public building. Across Greater London, we cover 764 places, Tower Hill among them.
Work in SE1, E1 and E1W is surveyed, quoted and booked the same way as anywhere else. AHU cleaning is available to premises on Bush Lane, Swan Lane and Mark Lane and the roads around them. Tower Hill sits on or near the A3 and A10, which makes travel easy for evening and night visits. Close by, we work in Aldgate (1 mile north), Bishopsgate (1 mile north), Spitalfields (1 mile north), Whitechapel (1 mile north-east) and St George in the East (1 mile east). We also work in nearby towns such as City of Westminster (3 miles west), Marylebone (3 miles west), Kensington (5 miles west), Walthamstow (6 miles north-east), Hampstead (5 miles north-west) and Ruislip (15 miles west).
Near you in Tower Hill
In Tower Hill, that means kitchens and buildings near Bishopsgate Institute Special Collections and Archives, The Liberty Bounds pub and Fund Academy and the streets around them. Other local landmarks include St Mary-at-Hill (within half a mile north-west), William Curtis Ecological Park (less than half a mile south) and St Michael's Catholic College (0.7 miles south-east). Tower Hill has its own railway station: London Fenchurch Street station. Other landmarks nearby include Tower of London (under half a mile east) and London Bridge Hospital (within half a mile south-west). Green spaces nearby include Lavender Pond and Ludgate Hill.
How the job changes from site to site
Heating and cooling coils
Heating and cooling coils have tightly packed fins that trap fine dust. We clean them with care so the fins are not damaged.
Drain trays
Standing water in a tray sits right where the air passes. We clean it and note if the slope or the drain needs attention.
Common questions in Tower Hill
What do you need to know about parking in Tower Hill?
We plan it in advance, so let us know about loading bays, permits and access rules at the building. Working overnight, as we often do in London, typically makes it simpler.
Can ventilation in schools around Tower Hill be cleaned out of term?
Yes, holiday work suits schools best. With about 107 schools and colleges on the FSA’s register within roughly a mile and a half of Tower Hill, it pays to plan holiday dates ahead. Booking early in the term gives the best choice of holiday dates.
Will we get paperwork for the AHU clean?
Yes. Every clean comes with a TR19® certificate and a photo report. Keep them in the maintenance log.
Which sectors do you work in?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, as well as food production and leisure sites.
How much notice do you need?
It depends on the time you need and how big the job is. Tell us your preferred dates when you ask for a quote, and for anything urgent, ring our 24/7 emergency line.
What should I send you?
Where the site is, what it is and when it’s open, along with a few photos and any previous report.
Is a quote from photos possible?
In many cases, yes. Photos of the system and the access, plus your opening hours and last report, are often enough. Larger or hidden systems need a survey on site first.
Do you have a 24/7 line?
Yes, 24/7. Office hours are Monday to Friday, 8am to 6pm, with the emergency line covering every other hour.