Greater London · Air handling unit cleaning
AHU Cleaning in Widmore
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for Widmore, with a survey first and a report with pictures at the end. Ask us for a fixed quote.
- Drain trays holding standing water
- Plant that needs cleaning after a refit
- Dirty filters cutting the airflow
What happens on the day
The visit has three parts: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with pictures. Most of the time goes on the work itself, and that takes from a few hours for a compact unit to a day or more for a large one. Loading bays, visitor permits and roof access are the first things we ask about for a site in Widmore.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Getting ready for the visit
- Tell us where we can park and unload
- Tell us about site rules, permits or sign-in
- Find the previous report, if there is one
Get a fixed quote
Here’s what helps us quote: the address, the type of site and when it’s open, a few pictures and the last certificate or report, if there is one. Then ring 0345 646 2711 or send us an email.
Advice
AHU cleaning for kitchens and businesses in Widmore
Every supply and extract system relies on the air handling unit at its centre: it draws air in, filters it, heats or cools it and pushes it round the ductwork. Whatever builds up inside it travels with that air, so cleaning the unit matters as much as cleaning the ducts. Common call-outs are for condensate trays that won’t empty and air handling units never cleaned inside, across filter sections, supply and extract fans and heating and cooling coils.
Many London buildings have had their ventilation extended and altered through several fit-outs, leaving sections that are hard to reach and seldom cleaned. In Widmore, as elsewhere, cleaning starts with an inspection of what’s there.
Duct Doctor has been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
- Place
- Widmore (BR1, BR2, BR7)
- Wider area
- Greater London
- Paperwork
- Photo report after every visit
- Quote
- A fixed price before we start
- Working hours
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
When it’s something else
We won’t sell you work that does not address the problem, so here are the limits:
- Coils that are corroded or leaking and need replacing
- The supply and extract ducts, quoted separately
- Ventilation that was badly designed in the first place
If in doubt, call 0345 646 2711 or drop us a line and we’ll say what we think before booking.
Where we work
- Dampers and louvres
- Internal panels
- Drain trays
- Supply and extract fans
- Heating and cooling coils
- Filter sections
What affects the quote in Widmore
There’s no set price list, because sites vary so much. The quote depends on:
- Where the site is and how we reach it
- Whether several sites go on one quote
- Any permits to work or inductions
- A single visit or a regular plan
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, which can make the next visit longer. If you are unsure, give us a ring on 0345 646 2711 or use the quote form and we’ll give you an honest view and a fixed quote.
Helping us quote
To help us quote quickly, please include:
- A few general shots of the system
- Your last certificate, test record or report
- Your opening hours and when the area is out of use
- Any access panels or hatches you can see
Every quote begins with a look at the system, from your photos and details or, where that isn’t enough, a survey on site. Then we send a fixed price so you know the cost before any work starts.
What we’re called out for in Widmore
Mechanical servicing keeps a unit running, but it doesn’t always include cleaning the inside. That means a unit can tick every service box and still be carrying years of dirt.
Look out for any of the following:
- Air handling units due a clean after building work
- Plant that has been serviced but not cleaned
- Drain trays holding standing water
- Intake sections clogged with outdoor debris
Healthcare buildings such as Bridgeways Day Hospital, about 1 mile south, depend on their ventilation; if you manage a surgery, clinic or care home near Widmore, yours matters too.
What to look for in a quote
- How VAT is shown on the quote
- Whether the work can be done while the site is closed
- Whether they’re fully insured
- Exactly which parts of the system are covered
Part by part
Fans and fan sections
Build-up on fan blades can upset the balance and add wear. Cleaning keeps it running as intended.
Filters
Filter condition tells you a lot about the rest of the unit. They’re photographed before and after for your records.
AHU cleaning around Widmore
Food Standards Agency data includes about 14 schools, colleges and universities, about 38 hospitals, care homes and childcare premises and about 4 hotels and B&Bs across Widmore and its immediate surroundings (about a mile and a half). Where buildings like these have air handling units, filters, coils and drain trays need regular attention. Bridgeways Day Hospital is the nearest hospital, about 1 mile south of Widmore. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. London plant rooms are often on roofs or in basements reached through occupied floors.
If you manage a school such as Bullers Wood School for Boys, ventilation cleaning is best booked for the holidays. If you run an office near Bickley station, its supply ductwork can gather dust for years before anyone looks inside.
Widmore is about 1 mile east of Bromley, in Greater London. Wherever you are in the BR1 postcode area, we cover AHU cleaning for commercial sites. Our area takes in 764 places across Greater London, from busy centres to quieter spots. Our London page covers sites nearby, about 9 miles away.
Work in BR1, BR2 and BR7 follows the same survey, fixed quote and written report as everywhere else we cover. If you need AHU cleaning at premises on Golf Road, The Avenue and Canon Road or anywhere close by, our technicians can take on the work. We also cover the places around Widmore: Bickley (1 mile north), Elmstead (1 mile north), Chislehurst (1 mile north-east), Bromley (1 mile west) and Sundridge (1 mile north-west). We also work in nearby towns such as London (9 miles north-west), City of Westminster (12 miles north-west), Marylebone (12 miles north-west), Kensington (13 miles north-west), St Pancras (11 miles north-west) and Shoreditch (10 miles north-west).
Near you in Widmore
Around Widmore, our work takes us to kitchens and buildings near Bird In Hand Public House, St George's and Jubilee Country Park. Widmore has its own railway station: Bickley station. A little further out are Bridgeways Day Hospital (1 mile south) and The Mall (1.3 miles west). For a walk, there’s Summer Hill and The Tarn.
Why it’s worth doing now in Widmore
If people in a building in Widmore complain about stuffy or smelly air, the AHU is worth looking at. Cleaning it deals with the cause rather than the symptom. Every month a London system goes without attention adds to what has to be done later.
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 work begins.
Why us?
- Survey first, then a fixed quote
- Evenings, overnight and weekends, plus 24/7 emergency callout
- One contact for all your sites in London and the South East
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Read what affects the cost or our accreditations.
Also in Widmore
Widmore: your questions answered
Can you clean school ventilation in Widmore during the holidays?
Yes. The holidays are the usual time for school work. The FSA’s register shows about 14 schools and colleges with food registrations within roughly a mile and a half of Widmore. Just give us a ring on 0345 646 2711 or drop us a line with your term dates and we’ll plan around them.
How do you handle parking and loading in Widmore?
Tell us where a van can stop near your site in Widmore, and about any building rules on loading. If the building has a loading slot system, we’ll book into it.
Do you offer maintenance contracts?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, depending on what the system needs.
How long will the unit be out of action?
As a guide, it takes from a few hours for a compact unit to a day or more for a large one. The shutdown is planned to fit, including evenings or weekends.
Where does the waste go?
Waste is contained during the work and removed when we leave, including grease, debris and dirty water. None of it is left on site.
Can you price the work without visiting?
Yes, where the photos show enough. If not, a site survey comes first, and the quote follows that.
Do you do ventilation duct cleaning too?
Yes, supply and extract ducts, grilles and diffusers. The survey shows whether the ducts need cleaning now.
How much notice do you need?
That depends on the slot you want and the size of the job. Mention your preferred dates with your enquiry, and for anything urgent, ring our 24/7 emergency line.
In-house cleaning or a specialist?
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, it’s best reported rather than tackled in-house. We can diagnose it and quote.
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.