Greater London · Air handling unit cleaning
Air handling unit cleaning in West Hampstead, Greater London
Specialist AHU cleaning for West Hampstead: a survey, a fixed price, careful work and proper paperwork. Call for a fixed quote.
- Stale or musty smells from the ventilation
- Dirty fans and fan housings
- Condensate trays that will not empty
How we handle AHU cleaning in West Hampstead
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 supply and extract fans, dampers and louvres and internal panels, and common reasons people get in touch are stale or musty smells from the ventilation and coils clogged with dust and debris.
In London, plant rooms are often in basements or on roofs reached through occupied floors, so ventilation cleaning in West Hampstead is normally planned out of hours. Parking and loading are agreed with the building in advance.
For insurers and inspectors, the record counts. That’s why every job is written up in a report with photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Place
- West Hampstead (NW3, NW6, NW2)
- Wider area
- Greater London
- Paperwork
- Written report with pictures
- Quotes
- A fixed quote up front
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Between visits
No system stays clean for ever, but care slows the build-up. A few tips:
- Make sure the unit’s access doors open easily
- File each AHU report in the maintenance log
- Check the drain tray is emptying during routine visits
- Clear leaves and litter away from the intake
Stick to the filter change schedule, as that does more than anything to keep the unit clean. Record each change in the maintenance log.
Keep the area around the intake clear. Anything around the intake is likely to be drawn in.
Fixed quotes for AHU cleaning in West Hampstead
The price is fixed before any work begins. It’s based on:
- Where the site is and how we reach it
- Working hours and out-of-hours timing
- The scale of the work
- Site rules, permits and inductions
What you pay depends on how big the system is, the condition it’s in and access to every part of it. You get a fixed price before work begins, so you know where you stand.
What to send for a quote
What to send for a quote:
- Close-ups of filters, grilles, hatches or access panels
- Problems your staff have spotted
- The postcode and the type of business
- Wide photos of the system and the area around it
We do not publish a price list, because no two systems are the same. Instead, we look at your site first, from pictures or a survey, and then give you a fixed quote. To start, ring 0345 646 2711 or email us.
What happens if it’s left?
A clogged coil or dirty fan makes the unit work harder for the same airflow. That means more wear on the motor and rooms that feel less fresh, and a planned clean is far less disruptive than a breakdown. In West Hampstead, a planned overnight visit is much easier than closing unexpectedly.
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we’ll explain each part.
Why book with us
- Each visit written up, with pictures
- Full insurance on every job
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Ventilation hygiene specialists since 2009
Take a look at how cleaning jobs are priced or how to check a contractor.
AHU cleaning around West Hampstead
There are about 70 schools, colleges and universities, about 54 caring premises (care homes, nurseries and hospitals) and about 19 hotels and guest houses on the FSA’s food hygiene register within roughly a mile and a half of the centre of West Hampstead. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. In London, ventilation plant is often on the roof or below ground, so the work is typically done out of hours. New End Hospital is the nearest hospital, about 0.5 miles north-east of West Hampstead. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital.
If you manage offices or shops near Finchley Road & Frognal station, their ventilation can be inspected and cleaned out of hours. Classrooms and halls at schools such as Emmanuel Church of England Primary School are easiest to work in when pupils are away.
West Hampstead is about 3 miles north-west of City of Westminster, in Greater London. Sites in West Hampstead get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with pictures. Across Greater London, we cover 764 places, and West Hampstead is one of them. We also work in London, around 6 miles away.
We cover every part of the NW3, NW6 and NW2 postcode area for AHU cleaning and the streets around it. AHU cleaning is available to premises on Mill Lane, Acol Road and Ajax Road and the roads around them. Main roads around West Hampstead include the A502, so getting to you is simple for evening and night visits. Neighbouring places we cover for AHU cleaning include Fortune Green (1 mile west), Hampstead (1 mile east), Greenhill (1 mile east), Childs Hill (1 mile north-west) and Vale of Health (1 mile north-east). Within a short drive, we also cover London (6 miles south-east), City of Westminster (3 miles south-east), Marylebone (3 miles south-east), Kensington (4 miles south), St Pancras (4 miles south-east) and Shoreditch (5 miles east).
What’s near West Hampstead
Locally, jobs take us to businesses close to South Hampstead High School, Holly Bush pub and Kilburn Grange Park, among other places. West Hampstead has its own railway station: Finchley Road & Frognal station. Other landmarks nearby include Isokon Gallery (1.2 miles east) and New End Hospital (0.5 miles north-east). Not far away are Parliament Hill and Westbere Copse.
What staff can safely do
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 will take a look and send you a fixed quote.
Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they cannot safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
Nearby places to West Hampstead
More services for West Hampstead
Common questions in West Hampstead
Can you work in West Hampstead outside opening hours?
Yes, evening, overnight and weekend work is normal for us. The work in West Hampstead can fit around your hours. Let us know the hours you’re closed and we’ll book within them.
Can a school’s ventilation in West Hampstead be done out of term time?
Yes, out-of-term visits are normal for schools. The FSA’s register shows about 70 schools and colleges with food registrations within roughly a mile and a half of West Hampstead. Just ring 0345 646 2711 or use the quote form with your term dates and we will plan around them.
What should I send you?
The site address, the type of premises and your opening hours, plus pictures of the system and your last certificate or report if you have one.
How often do AHUs need cleaning?
That is set by inspection, in line with TR19® Air. Units in heavy use or in sensitive buildings may need attention more often.
Do you repair air handling units?
Motors, belts, controls and coils that need repair are a job for your maintenance contractor. We’ll flag anything we notice during the clean.
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 accredited?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
Is West Hampstead in your area?
Yes. Our technicians work in West Hampstead, as part of our area across London and the South East.
Signs you need AHU cleaning in West Hampstead
Cooling coils create condensation, and that water has to go somewhere. A blocked outlet or a badly sloped tray leaves standing water, and slime and smells soon follow.
What we are most often called out for:
- Dirty fans and fan housings
- Plant that has been serviced but not cleaned
- Air handling units due a clean after building work
- Intake sections clogged with outdoor debris
Healthcare ventilation, from large hospitals like New End Hospital (about 0.5 miles north-east) to small clinics, depends on clean filters, coils and ducts.
Questions to ask before booking
- Whether the work can be done while the site is closed
- Whether VAT is included
- How areas they cannot reach will be recorded
- Whether the quote is based on a survey or pictures
What happens on the day
We work around your opening hours, not the other way round. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. Once we are in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes anything from half a day for one small unit to several shifts for a plant room full of them. A name and number for whoever controls access to the building in West Hampstead saves time on the night.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
How to prepare
- Make sure someone can let us in and lock up afterwards
- Plan for cooking equipment or plant to be off before we arrive
- Mention any parking or loading restrictions
Get a fixed quote
Every quote begins with a look at the system, from your pictures and details or, where that is not enough, a survey on site. After that, you get a fixed price for the work so you know the cost before we start.
Advice
Landlords, agents and facilities managers
Multi-site operators often want one contractor and one number. We cover South East England and London, so a run of sites can go into one programme and kept to a regular schedule.
Facilities teams in offices, schools and healthcare sites book us too across Greater London. Larger estates can be phased building by building around the people who use them.