Greater London · Air handling unit cleaning
Aldgate AHU cleaning
For cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Aldgate, one call is all it takes, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Stale or musty smells from the ventilation
- Dirty coils holding back the airflow
- Fan sections that haven’t been cleaned in years
AHU cleaning in Aldgate
A cooling coil drips condensate into a tray that should drain away. When the drain blocks, water sits there and the tray turns slimy, in the airstream that feeds the building. Cleaning and clearing it is a key part of the job. We are often asked to deal with condensate trays that won’t empty and odours coming through the supply air, across internal panels, drain trays and filter sections.
In London, plant rooms are often in basements or on roofs reached through occupied floors, so ventilation cleaning in Aldgate is usually planned out of hours. Parking and loading are agreed with the building in advance.
We’re 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, and we’ve been trading since 2009.
- Place
- Aldgate (E1, EC2A, SE1)
- Wider area
- Greater London
- Reporting
- Photo report after each visit
- Quote
- A fixed quote up front
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
Why it’s worth doing now in Aldgate
Standing water in a drain tray doesn’t clear itself. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Dealing with it early keeps the clean straightforward. London sites work long hours, and the longer a job is left, the bigger it gets.
No two sites are the same, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
Why Aldgate businesses choose us
- A written report with pictures after every visit
- Every job surveyed first
- We’re fully insured
- Fixed quotes from a survey or pictures
Take a look at what affects the cost and how to check a contractor.
What affects the cost of AHU cleaning
You will get a fixed price before work begins. It’s based on:
- How many systems or sites are involved
- Where the site is and how we reach it
- When the work can happen, such as evenings, overnight or weekends
- The scale of the work
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.
What we need to know
When you call or email, these details help:
- Any previous report or certificate
- How we’d reach plant on a roof or in a plant room
- Wide pictures of the system and the area around it
- When the site is open and when it’s quiet
Quotes are quick. 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.
What a clean will not put right
A few issues sit outside what this work can do:
- Damaged coils beyond cleaning
- A system that’s undersized for the building
- Building management system faults
Not sure which it is? You can phone us on 0345 646 2711 or use the quote form and we’ll tell you honestly.
What we work on in Aldgate
- Heating and cooling coils
- Dampers and louvres
- Internal panels
- Supply and extract fans
- Drain trays
- Filter sections
Do you need AHU cleaning in Aldgate?
Dirt in an AHU matters in two ways: 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 Aldgate, that’s air they breathe for hours at a time.
Clients usually contact us after spotting something like this:
- Fan sections that haven’t been cleaned in years
- Stale or musty smells from the ventilation
- Blocked condensate drains and slimy trays
- Dirty coils holding back the airflow
If you run an office near London Fenchurch Street station, its supply ductwork can gather dust for years before anyone looks inside.
Questions to ask before booking
- What hours they’ll be on site
- Whether the price is fixed
- What happens if part of the system cannot be accessed
- Whether the whole system is included, or only the parts that are easy to reach
Managing agents and facilities teams in Aldgate
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We’re happy to deal with either side and send the paperwork to whoever needs it.
Whether it’s one building or many, the standard is the same: the system surveyed, the price fixed, the visit fitted around trading and everything written up afterwards.
Also near Aldgate
Other services in Aldgate
Keeping the system healthy
Here’s the after-treatment advice, short and simple:
- Report musty smells from the vents right away
- Plan the next inspection before the last report gets filed away
- Keep the certificate and photo report with the plant records
- Keep the area around the fresh air intake clear
Stick to the filter change schedule, as that does more than anything to keep the unit clean. Log every change so it’s easy to see when the next is due.
Keep the area around the intake clear. Anything around the intake is likely to be drawn in.
How the visit works
A visit follows the same order every time: sheeting and protection first, isolate whatever needs isolating, carry out the AHU cleaning, clear away and leave you the report. On site, the work takes from a few hours for a compact unit to a day or more for a large one. Expect the work in Aldgate to happen after your last customer leaves, not during trading.
- We start with a survey of the unit and a fixed quote for the work.
- We arrange the shutdown with your staff and sheet the area.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- We clean out the drain tray and make sure it drains.
- We close up the unit and send the certificate and before and after pictures.
Getting ready for the visit
- Let us know about permits to work or site inductions
- Tell us the best time to work, such as after service or at a weekend
- Dig out any earlier paperwork for the system
Getting a quote
For AHU cleaning in Aldgate, give us a ring on 0345 646 2711, or send details by email. Let us know the site type and the opening hours, and send photos or your last report if you can. We typically send a fixed quote within one working day.
Related advice
Aldgate: your questions answered
Do you work overnight in Aldgate?
Yes. We work evenings, overnight and at weekends. It means the site in Aldgate keeps running as normal. Your opening times are the first thing we ask for.
What do you need to know about parking in Aldgate?
Tell us where a van can stop near your site in Aldgate, and about any building rules on loading. If the building has a loading slot system, we will book into it.
What’s TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
What if parts of the system can’t be reached?
They’re listed in the report, never skipped quietly. The report says which parts couldn’t be reached and why, along with a quote to put access in.
How do you protect the area?
Floors and surfaces near the work are sheeted before work begins, and waste is contained as we go. Before we leave, we tidy up and clean down.
What should I send you?
A short description and a few photos, with the address and opening hours. We’ll ask for anything else we need.
Is a quote from pictures possible?
Often, yes. Photos of the system and the access, plus your opening hours and last report, are often enough. Where we cannot see enough, we arrange a survey.
Where does the waste go?
It’s contained and taken away. Grease, debris and waste water are collected as the work goes on, so it doesn’t spread.
Ventilation in Aldgate buildings
Food Standards Agency data includes about 106 schools, colleges and universities, about 66 care, childcare and hospital premises and about 86 hotels and guest houses in and around Aldgate, up to about a mile and a half out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. Many London buildings have had their ductwork altered through several fit-outs, so an inspection comes first. For Aldgate, the closest hospital is London Bridge Hospital, roughly 0.6 miles south-west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
London Bridge Hospital, about 0.6 miles south-west, is the nearest hospital to Aldgate, and healthcare sites of every size need their supply air kept clean. For schools like The Aldgate School, the holidays are the usual time to inspect and clean ventilation.
Aldgate is about 1 mile north-east of London, in Greater London. Every kind of commercial site in Aldgate, AHU cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so trading isn’t interrupted. Aldgate is one of 764 places in Greater London we cover for AHU cleaning.
We cover every part of the E1, EC2A and SE1 postcode area for AHU cleaning and the streets around it. Local streets include Bush Lane, Swan Lane and Mark Lane, and we cover them all for AHU cleaning. You will find Aldgate on the A3 and A10, so it’s easy for us to get to for out-of-hours visits. If your site is just outside Aldgate, we cover Spitalfields (1 mile north-east), Bishopsgate (1 mile north-west), Tower Hill (1 mile south), Whitechapel (1 mile north-east) and City of London (1 mile west). Further out, we also cover 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).
Local landmarks in Aldgate
We work in commercial kitchens and buildings around Bishopsgate Institute Special Collections and Archives, Fund Academy and East India Arms. Other local landmarks include London Enterprise Academy (0.6 miles east), St Mary-at-Hill (under half a mile south-west) and Finsbury Circus (0.5 miles north-west). There’s a railway station in Aldgate itself: London Fenchurch Street station. Nearby you’ll also find Gabriel's Wharf (1.4 miles west) and Tower of London (less than half a mile south). Open spaces near Aldgate include St. James's Park Lake and Lavender Pond.