Greater London · Air handling unit cleaning

Oval AHU cleaning

Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for businesses, landlords and public buildings in Oval. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.

  • Air handling units due a clean after building work
  • Debris and leaves in the fresh air intake
  • Odours coming through the supply air

AHU cleaning for kitchens and businesses in Oval

An air handling unit is the heart of a building’s ventilation: 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. The work covers dampers and louvres, internal panels and supply and extract fans, and common reasons people get in touch are air handling units never cleaned inside and air handling units due a clean after building work.

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 Oval.

We’ve been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.

Where
Oval (SW8, SW9, SW1P)
Region
Greater London
Reporting
Photo report after every visit
Quote
Fixed quote, typically within a working day
Working hours
Evenings, overnight and weekends; 24/7 emergencies
Call
0345 646 2711
Reviewed
30 October 2026
Five Duct Doctor technicians in navy uniforms with the company vans

Fixed quotes for AHU cleaning in Oval

The survey tells us what the work involves. The main factors are:

  • The times the site is available
  • One-off work versus a regular cycle
  • The condition we find in the survey
  • The scale of the work

You will not find a price list here, because each job is priced on what it involves. Call for a fixed quote, and we’ll explain what it covers.

What to send for a quote

You do not need the technical terms. It helps if you can send:

  • A few general shots of the system
  • Any previous report or certificate
  • Any symptoms, from odd noises to smells or leaks
  • When the site is open and when it’s quiet

Want a quote for AHU cleaning? Please give us a ring on 0345 646 2711, or email photos with a few details about the site. We’ll talk you through the work and send you a fixed quote before you commit to anything.

Landlords, agents and facilities managers

Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. Where responsibility is shared, records matter even more.

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 the report can go to both.

The process

Your staff do not need to do much on the day. A contact on site lets us in at the agreed time and points us to the system, and the rest is down to us. Afterwards, the area is left tidy and the written report follows. Many London buildings have a managing agent, a security desk or a permit-to-work system, so tell us who to contact in Oval.

  1. We look at the unit and the plant area during the survey.
  2. The area is protected and the unit made safe.
  3. Each section is cleaned of dust, debris and slime.
  4. Coils and trays are cleaned and the condensate drain cleared.
  5. The unit is closed up and handed back, with a report to follow.

Getting ready for the visit

  • Dig out any earlier paperwork for the system
  • Let us know when the site is closed or quiet
  • Move anything stored near the system

Ask for a quote

Every quote begins with a look at the system, from your photos and details or, where that is not enough, a survey on site. Then we send a fixed price so you know the cost before any work starts.

Ask for a quote

Advice

AHU cleaning in Oval: local notes

There are about 109 schools, colleges and universities, about 54 hospitals, care homes and childcare premises and about 64 hotels, B&Bs and guest houses on the FSA’s food hygiene register within about 1.5 miles of central Oval. Busy, occupied buildings like these are where clean supply air matters most. Oval’s nearest hospital, The Gordon Hospital, is about 1 mile north-west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. Ventilation cleaning in London buildings is typically planned for evenings or weekends.

Wherever a school like St Stephen's Church of England Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time. Workplaces around Vauxhall station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts. Healthcare buildings such as The Gordon Hospital, about 1 mile north-west, depend on their ventilation; if you manage a surgery, clinic or care home near Oval, yours matters too.

Oval is about 1 mile north of Stockwell, in Greater London. For AHU cleaning in and around Oval, it’s easy to get a fixed quote: please call us on 0345 646 2711, or email photos. Our area covers London and the South East, including Oval. Oval is one of 764 towns, villages and districts in Greater London we cover for AHU cleaning.

All of SW8, SW9 and SW1P is covered for AHU cleaning, from busy streets to back roads. Streets in the area include Lett Road, Rita Road and Wyvil Road, all of which we cover for AHU cleaning. Main roads around Oval include the A203 and A3204, so getting to you is simple for evening and night visits. We also cover the places around Oval: Kennington (1 mile north), South Lambeth (1 mile south-west), Little Portugal (1 mile south), North Brixton (1 mile south-east) and Vauxhall (1 mile north). Larger places within reach include City of Westminster (3 miles north-west), Marylebone (3 miles north-west), Kensington (4 miles west), St Pancras (3 miles north), Shoreditch (4 miles north-east) and Walthamstow (8 miles north-east).

What’s near Oval

Around Oval, our work takes us to kitchens and buildings near Vauxhall Park, Lambeth Palace Library and St Peter's School, among other places. Nearby too are Archbishop Tenison's Church of England School (under half a mile north-east) and Crown and Thistle pub (within half a mile south-west). There’s a railway station in Oval itself: Vauxhall station. Nearby you will also find Type Museum (0.5 miles south) and The Gordon Hospital (1 mile north-west). The countryside around Oval includes Bellenden Road Nature Garden and Ludgate Hill.

Map of Oval © OpenStreetMap contributors

Aftercare tips

Good habits slow the build-up between visits. A few tips:

  • Make sure condensate is draining away
  • Change filters on schedule and log each change
  • Do not store bins or materials near the intake
  • Watch for drips or damp patches near the plant

The ducts served by the unit may need attention too. Cleaning the unit and ducts together gives the best result, and we can survey both.

Change or clean filters on time. Once filters clog, dirt starts getting past them.

How the job changes from site to site

Filters

Dirty filters cut airflow and let dirt slip past their frames. The filter section is cleaned so new or cleaned filters sit properly.

Drain trays

Older trays can corrode and start leaking. Their condition goes into the report with photos so you can decide on any repairs.

Your questions about AHU cleaning in Oval

Does London parking affect a job in Oval?

A loading bay, a visitor permit or off-street space near the site in Oval makes the visit easier to plan. Night visits tend to make loading easier on London streets.

Can you come to Oval after we close?

Yes, out-of-hours work is a big part of what we do. That way a site in Oval doesn’t have to lose a day’s trading. Let us know the hours you are closed and we will book within them.

How much does AHU cleaning cost?

The cost depends on the size of the system, its condition, access and timing. Ask us for a fixed quote, typically ready within one working day.

Are you accredited?

Our accreditations are CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.

Will the ventilation be off while you clean?

Yes, for the time we are working on it. We can work evenings, overnight or at weekends to keep disruption down.

Do you do ventilation duct cleaning too?

Yes. Ventilation ductwork cleaning to TR19® Air is part of what we do. It’s often worth doing both at once, and we can survey both on the same visit.

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.

Can you set up regular visits?

Yes. We run scheduled maintenance contracts, set at the interval the system needs. Each report recommends when the next visit should be.

Why it’s worth doing now in Oval

Tenants, auditors and owners may want proof that the air handling plant is kept clean. Our certificate and photo report give you clear evidence, for audits, tenants or your own peace of mind. London buildings are shared, so a fire or failure in one system can reach the neighbours above and beside you.

When the work has to happen, how we reach it and how big the site is all affect the cost. We take each of them into account, and the price is fixed before work begins.

Why us?

  • Work around your opening hours, with 24/7 emergency cover
  • In business since 2009
  • Survey first, then a fixed quote
  • Accredited under CHAS and SafeContractor, with ISO 9001

See our cost guide and our accreditations and certificates.

What staff can safely do

Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, which is where we come in.

Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.

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