Greater London · Air handling unit cleaning
Air handling unit cleaning in Finchley, Greater London
AHU cleaning for Finchley, with a survey first and a report with pictures at the end. Call for a fixed quote.
- Condensate trays that will not empty
- Plant that needs cleaning after a refit
- Coils clogged with dust and debris
AHU cleaning for kitchens and businesses in Finchley
If the units serving a building in Finchley have only had filter changes for years, there may be dirt on the coils, fan and casing that nobody has looked at. A full AHU clean takes in the whole unit. We’re often asked to deal with units that have only ever had filter changes and dust built up on fan impellers, across filter sections, drain trays and dampers and louvres.
In London, plant rooms are often in basements or on roofs reached through occupied floors, so ventilation cleaning in Finchley is normally planned out of hours. Parking and loading are agreed with the building in advance.
For insurers and inspectors, the record counts. So every job comes with a written report and photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Place
- Finchley (N3, N2, N12, NW11)
- Wider area
- Greater London
- Paperwork
- Photo report after every visit
- Quotes
- A fixed price before any work starts
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
Aftercare tips
Good habits slow the build-up between visits. Our tips:
- Change filters on schedule and log each change
- Report water on the plant room floor
- Report stiff or damaged access doors
- File each AHU report in the maintenance log
Once the clean is done, we send a TR19® certificate and a report with before and after pictures. They belong in the plant or maintenance log.
Keep the area around the intake clear. What’s near the intake ends up in the unit.
Towns and villages near Finchley
Other services in Finchley
What we do, step by step
Your trading hours come first. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the job takes anything from half a day for one small unit to several shifts for a plant room full of them. Managed blocks in London often need contractors booked in ahead, and we are happy to deal with the agent directly for a site in Finchley.
- We survey the unit from pictures or on site and agree what’s included.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters, coils, fan section and casing are cleaned in turn.
- Standing water and slime come out of the tray and the drain is checked.
- We close up the unit and send the certificate and before and after photos.
Getting ready for the visit
- Make sure equipment near the work can be switched off and left to cool
- Have your last certificate or report to hand
- Agree a time when the area can be out of use
How to get 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, before any work starts.
Related advice
FAQs for Finchley
What do you need to know about parking in Finchley?
Tell us where a van can stop near your site in Finchley, and about any building rules on loading. Much of our London work is done overnight, which helps.
Can a school’s ventilation in Finchley be done out of term time?
Yes, and it’s the easiest time to do it. Around Finchley, the Food Standards Agency lists about 48 schools and colleges with registered kitchens within a mile and a half or so. You can give us a ring on 0345 646 2711 or send us an email with the dates the site is empty.
How long will the unit be out of action?
Expect it to take half a day to a full day per unit, with large plant planned over several shifts. The unit’s size and condition make the biggest difference, and the quote will give you a clear idea.
Do you do ventilation duct cleaning too?
Yes. We clean supply and extract ductwork to TR19® Air as well. Cleaning the unit and ducts together often makes sense, and we can quote for both.
Which kinds of sites do you work on?
Commercial premises of every kind: kitchens, offices, schools, healthcare, retail, leisure and food production. Work is timed around how each site runs.
Do you work evenings or weekends?
Yes. Evening, overnight and weekend work is all possible, so the building keeps running in the day.
Is there a survey before the work?
Yes. Photos often do the job, while bigger or harder-to-see systems are surveyed on site.
When should our AHU next be cleaned?
Inspection under TR19® Air decides it. Units in heavy use or in sensitive buildings may need attention more often.
When it’s something else
An honest diagnosis matters more to us than a booking, so here’s what this work cannot put right:
- Damaged coils beyond cleaning
- Controls and BMS settings that run the unit
- A system that’s undersized for the building
Not sure which it is? You can give us a ring on 0345 646 2711 or drop us a line and we’ll tell you honestly before you book.
What we work on in Finchley
- Supply and extract fans
- Internal panels
- Drain trays
- Heating and cooling coils
- Dampers and louvres
- Filter sections
Fixed quotes for AHU cleaning in Finchley
There’s no set price list, because sites vary so much. The quote depends on:
- How easy every part is to reach
- Working hours and out-of-hours timing
- How big the system is
- Site rules, permits and inductions
We do not list prices on the website, because each job is priced on what it involves. For a fixed quote, call us on 0345 646 2711 or send us an email, and we’ll explain what it covers.
Helping us quote
You do not need the technical terms. Just send:
- The postcode and the type of business
- The paperwork from the last visit, if you have it
- The times we could work without disrupting the site
- Detail shots of panels, filters and grilles
There’s no standard price list, because every site is different. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To get going, phone us on 0345 646 2711 or use the quote form.
What your team can do, and what needs us
Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but they do not reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
Leave it or put it right?
A light clean now is simpler than a heavy one later. Years of build-up make the job longer and harder, particularly where damp has made it stick. For a site in Finchley, fitting the work in overnight now is far easier than closing at short notice later.
No two sites are the same, so each one gets its own fixed quote. Size, access, the condition of the system and when we can work all make a difference.
Why us?
- Accredited under CHAS and SafeContractor, with ISO 9001
- Every job surveyed first
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- A written report with photos after each visit
Read what affects the cost or our accreditations and certificates.
What AHU cleaning looks like in Finchley
Food Standards Agency records list about 48 schools, colleges and universities, about 55 care, childcare and hospital premises and about 5 hotels and guest houses registered as food businesses within 1.5 miles or so of the middle of Finchley. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Ventilation cleaning in London buildings is usually planned for evenings or weekends. About within half a mile north-east of Finchley is Finchley Memorial Hospital, the nearest hospital. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
Healthcare ventilation, from large hospitals like Finchley Memorial Hospital (about within half a mile north-east) to small clinics, depends on clean filters, coils and ducts. For schools like Manorside Primary School, the holidays are the usual time to inspect and clean ventilation.
Finchley is about 6 miles north of City of Westminster, in Greater London. Whatever kind of site you run in Finchley, AHU cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. We cover 764 places across Greater London, from busy centres to quieter spots. We also work in London, around 8 miles away.
Here we cover the N3, N2, N12 and NW11 postcode area for AHU cleaning. Whether your site is on Station Road, Chaplin Square and Market Place or anywhere close by, our technicians can take on the work. Finchley is on the B1462, so it’s easy for us to get to for AHU cleaning. If your site is just outside Finchley, we cover Church End (1 mile west), Woodside Park (1 mile north), North Finchley (1 mile north), Friern Barnet (2 miles north-east) and Oakleigh Park (2 miles north). Larger places within reach include London (8 miles south-east), City of Westminster (6 miles south), Marylebone (6 miles south), Kensington (7 miles south), St Pancras (6 miles south-east) and Shoreditch (7 miles south-east).
Around Finchley
Around Finchley, our work takes us to kitchens and buildings near The Elephant Inn, Bishop Douglass School and Francis Skaryna Belarusian Library and Museum. You will also find Victoria Park (under half a mile north) and Woodhouse College (1 mile north-east). The closest station to Finchley is New Southgate station, about 1.9 miles north-east. Other landmarks nearby include Finchley Memorial Hospital (less than half a mile north-east) and Grand Arcade (1 mile north). The countryside around Finchley includes Highgate Hill and Lakeside Nature Reserve.
Part by part
Filters
Clogged filters reduce airflow, and dirt can get round the edges. The filter section is cleaned so new or cleaned filters sit properly.
Fans and fan sections
Before the fan is touched, the unit is shut down and made safe in agreement with the site.