Greater London · Air handling unit cleaning

West Dulwich AHU cleaning

Specialist AHU cleaning for West Dulwich: diagnosis first, then a fixed quote, the work and a report with photos. Call for a fixed quote.

  • Condensate trays that won’t empty
  • Fan sections that haven’t been cleaned in years
  • Dirty filters cutting the airflow

AHU cleaning in West Dulwich

AHU cleaning in West Dulwich: local notes

There are about 41 schools, colleges and universities, about 59 caring premises (care homes, nurseries and hospitals) and about 4 hotels and guest houses on the FSA’s food hygiene register within 1.5 miles or so of the middle of West Dulwich. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. The nearest hospital to West Dulwich is St Christopher's Hospice, about 1.3 miles south-east. 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 Dulwich Wood Primary School are normally done in the holidays, so classrooms aren’t disturbed. If you manage offices or shops near Sydenham Hill station, their ventilation can be inspected and cleaned out of hours.

West Dulwich is about 1 mile north-east of West Norwood, in Greater London. From the centre of West Dulwich to the outskirts, AHU cleaning is available to all kinds of commercial premises, from small sites to large estates. West Dulwich is one of 764 places in Greater London we cover for AHU cleaning.

All of SE21, SE27 and SE19 is within our area for AHU cleaning, from busy streets to back roads. You’ll find streets such as Berry Lane, Clive Road and Myton Road, and we cover them all for AHU cleaning. Main roads around West Dulwich include the A2199, which makes travel easy for AHU cleaning. Close by, we work in Sydenham Hill (1 mile east), West Norwood (1 mile south-west), Gipsy Hill (1 mile south), Dulwich (1 mile north) and Upper Norwood (1 mile south). Within a short drive, we also cover London (5 miles north), City of Westminster (6 miles north-west), Marylebone (6 miles north-west), Kensington (7 miles north-west), St Pancras (7 miles north) and Shoreditch (6 miles north).

Landmarks near West Dulwich

Around West Dulwich, our work takes us to kitchens and buildings near The Wood House, Dulwich Prep & Senior and Kingsdale Foundation School and the streets around them. There’s a railway station in West Dulwich itself: Sydenham Hill station. Well-known places in the area include British Vintage Wireless And Television Museum (less than half a mile west) and St Christopher's Hospice (1.3 miles south-east). Green spaces nearby include Battersea Park Lake and Dulwich Upper Wood.

Map of West Dulwich © OpenStreetMap contributors

AHU cleaning in West Dulwich, done properly

Heating and cooling coils trap dust that gets past the filters. Dirt on the fins holds back air and makes the unit work harder to do the same job. Coils are cleaned carefully, with methods chosen so the fins aren’t flattened. Common call-outs are for plant that needs cleaning after a refit and intake sections clogged with outdoor debris, across supply and extract fans, drain trays and filter sections.

Many London buildings have had their ventilation extended and altered through several fit-outs, leaving sections that are hard to reach and seldom cleaned. An inspection first shows where cleaning is needed in a building in West Dulwich.

We are CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. On top of that, we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.

Duct Doctor duct and vent cleaning vans lined up in a car park with the team
Place
West Dulwich (SE21, SE27, SE19)
Region
Greater London
Records
Report and pictures after the visit
Quote
Fixed quote, typically within a working day
Hours
Out of hours as standard, 24/7 emergency line
Call
0345 646 2711
Page updated
30 October 2026

How the visit works

On the day, we arrive at the time agreed with you, which is often after service, overnight or at a weekend. Equipment that has to be off is switched off and allowed to cool first, and the area around the work is covered and protected. The work itself takes from a few hours for a compact unit to a day or more for a large one. Getting kit into a London building takes planning, so let us know where we can load and park in West Dulwich.

  1. We survey the unit from pictures or on site and agree what’s included.
  2. We arrange the shutdown with your staff and sheet the area.
  3. Filters, coils, fan section and casing are cleaned in turn.
  4. We clean out the drain tray and make sure it drains.
  5. We close up the unit and send the certificate and before and after pictures.

Getting ready for the visit

  • Move anything stored near the system
  • Name a contact who can let us in at the agreed time
  • Let us know how we reach the system, including roofs, risers and plant rooms

Get a fixed quote

Quotes are quick. Send a few details and pictures, and we usually reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.

Ask for a quote

Read more

What affects the quote in West Dulwich

Your quote is based on your site. We take into account:

  • The condition of the system
  • The times the site is available
  • Access, including roofs, risers and ceiling voids
  • Any permits to work or inductions

No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all play a part.

Helping us quote

When you contact us, these details help:

  • How we’d reach plant on a roof or in a plant room
  • Your last certificate, test record or report
  • Detail shots of panels, filters and grilles
  • Any symptoms, from odd noises to smells or leaks

To help us quote: where the site is, what it is and its opening hours, pictures of the system and the last certificate or report, if there is one. Once you have those, call 0345 646 2711 or use the quote form.

Staff cleaning versus specialist work

Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.

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 can diagnose it and quote.

Looking after it afterwards

Once we’ve finished, these simple steps help:

  • Keep the certificate and photo report with the plant records
  • Don’t store bins or materials near the intake
  • Stick to the filter change plan
  • Note any water around the unit or leaks below it

Stick to the filter change schedule, because good filters protect everything downstream. Log every change so it’s easy to see when the next is due.

Keep the area around the intake clear. What’s near the intake ends up in the unit.

How the job changes from site to site

Fans and fan sections

The fan section is cleaned with the unit switched off and isolated with your site team.

Rooftop and plant room units

Units outside are exposed to weather and windblown debris. The intake section gets particular attention.

Managing agents and facilities teams in West Dulwich

If you look after several sites, we can schedule visits across all of them on one quote. Every building has its own written report, so records stay tidy.

When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We’re happy to deal with either side, and the report can go to both.

Common problems we fix in West Dulwich

Planned maintenance often covers belts, motors and filters but not cleaning. So a unit can be well maintained and still dirty.

These are the problems we see most often:

  • Dirty fans and fan housings
  • Odours coming through the supply air
  • Dirty coils holding back the airflow
  • Air handling units never cleaned inside

If you run a surgery, dental practice or care home near West Dulwich, clean ventilation matters as much to you as to a hospital like St Christopher's Hospice (about 1.3 miles south-east).

Questions to ask before you book

  • When they can work, and whether that is outside your opening hours
  • When the next visit should be, and why
  • Whether the figure could change on the day
  • What happens if part of the system can’t be accessed

How to choose an extract cleaning contractor

Common questions in West Dulwich

Can a school’s ventilation in West Dulwich be done out of term time?

Yes, out-of-term visits are normal for schools. Food Standards Agency records list about 41 schools, colleges and universities with registered kitchens within about a mile and a half of West Dulwich. Tell us your holiday dates and we’ll book the visit for when the site is empty.

Do you work at weekends in West Dulwich?

Yes, out-of-hours work is a big part of what we do. That way a site in West Dulwich doesn’t have to lose a day’s trading. Just give us a ring on 0345 646 2711, or email photos with your opening times and we will plan around them.

Which kinds of sites do you work on?

Commercial premises of every kind: kitchens, offices, schools, healthcare, retail, leisure and food production. We fit the work around how the site operates.

Are you fully insured?

Yes, we are fully insured. CHAS and SafeContractor accreditation sit alongside it for clients who vet their contractors.

Can you look after several sites?

Yes. Send the list of sites and the work at each and you’ll get one fixed quote.

Is a quote from pictures 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.

How far ahead should we book?

Book as early as you can for planned work, particularly if your next visit is nearly due. Emergencies are different, because our line is open 24/7.

What do you need from me for a quote?

Just the basics: the address, the site type, your opening hours and how we reach the system. Photos and any previous paperwork make it quicker. After that, simply give us a ring on 0345 646 2711 or email us.

BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
CHAS · SafeContractorISO 9001 and fully insured
Certificate and photo reportWith every clean
24/7 emergency calloutEvenings, nights and weekends
Since 2009South East England and London