Hertfordshire · Air handling unit cleaning
AHU Cleaning in Bushey
Air handling unit cleaning for businesses, landlords and public buildings in Bushey. CHAS, SafeContractor and ISO 9001, and fully insured.
- Plant that has been serviced but not cleaned
- Filters that are clogged or overdue
- Condensate trays that will not empty
What AHU cleaning cannot fix
In fairness, some problems need a different fix:
- Mechanical faults with motors, belts or bearings
- Leaking heating or cooling coils
- Controls and BMS settings that run the unit
If in doubt, call us on 0345 646 2711 or use the quote form and we will say what we think before booking.
What the work covers
- Supply and extract fans
- Filter sections
- Dampers and louvres
- Drain trays
- Heating and cooling coils
- Internal panels
About our AHU cleaning in Bushey
Heating and cooling coils trap dust that gets past the filters. A coated coil restricts airflow and makes the unit work harder. We clean coils with methods suited to their condition, taking care not to damage the fins. If you’re dealing with plant that has been serviced but not cleaned and rooms that smell stuffy when the system runs, we can help.
Many schools and offices in a town like Bushey have a mix of older and newer ventilation. An inspection shows which parts need cleaning.
We have been trading since 2009, and we are 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.
- Location
- Bushey (WD23, WD25, HA7)
- Wider area
- Hertfordshire
- Paperwork
- Photo report after each visit
- Price
- A fixed price before any work starts
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Different parts, different methods
Drain trays
The drain tray collects water from the cooling coil. We clear standing water, clean out slime and check the outlet is draining.
Heating and cooling coils
Because cooling coils run wet, the dirt on them tends to cling. The coil and its drain tray are cleaned as one job.
What affects the cost of AHU cleaning
We quote each job individually. This is what makes a difference:
- Any permits to work or inductions
- The number of sites or systems
- One-off work versus a regular cycle
- How big the system is
What you pay depends on the size of the system, the condition it’s in and how easy it is to reach. You get a fixed price before any work starts, so you know where you stand.
What we need to know
When you call or email, it’s useful to have:
- The postcode and the type of business
- Any previous report or certificate
- Detail shots of panels, filters and grilles
- The roof, plant room or outside wall the system runs to
The quickest way to a quote is to send photos: the system from a couple of angles, plus any access panels or hatches. Add the site type and your opening hours, and we can price many jobs without a visit.
Looking after it afterwards
Results last longer with the right care. We suggest:
- Change filters on schedule and log each change
- Report stiff or damaged access doors
- Don’t store bins or materials near the intake
- Watch for drips or damp patches near the plant
If the ductwork hasn’t been cleaned, consider it next. Cleaning the unit and ducts together gives the best result, and we can survey both.
Don’t let leaves, litter or stored materials build up near the fresh air intake. What’s near the intake ends up in the unit.
The process
We turn up 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 before work begins, and floors and nearby surfaces are sheeted. On site, it takes anything from half a day for one small unit to several shifts for a plant room full of them. Let us know how to reach the roof or plant area at your site in Bushey, and where the van can go.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- We work through the unit from the intake to the outlet.
- The fan and drain tray are cleaned and the drain checked.
- After pictures are taken and the certificate issued.
How to prepare
- Plan for cooking equipment or plant to be off before we arrive
- Let us know about permits to work or site inductions
- Let us know how we reach the system, including roofs, risers and plant rooms
Get a fixed quote
Quoting starts with a diagnosis, from your photos 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 work begins.
Related advice
Bushey questions
Can you work in Bushey outside opening hours?
Yes, out-of-hours work is a big part of what we do. The work in Bushey can fit around your hours. Just ring 0345 646 2711 or use the quote form with your opening times and we will plan around them.
Is Bushey in your area for AHU cleaning?
Yes, Bushey is covered. Just call us on 0345 646 2711 or drop us a line with a few details of the site.
Where does the waste go?
We contain it and take it with us. We collect grease, debris and waste water as we go rather than letting it spread.
What happens if you cannot reach some of it?
We record them on the report, with pictures where possible, and we tell you what would make it reachable, such as extra access panels in ductwork.
What do you do to protect the area?
Floors and surfaces near the work are sheeted before work begins, and waste is contained as we go. At the end, the area is cleaned down.
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.
How long does an AHU clean take?
The work takes half a day to a full day per unit, with large plant planned over several shifts. Bigger units can be phased, so call 0345 646 2711 or email us to talk it through.
Do you clean the ductwork as well?
Yes, supply and extract ducts, grilles and diffusers. The survey shows whether the ducts need cleaning now.
Why deal with it now?
Leave an AHU uncleaned and the dirt does not stay put. It moves on into the ductwork and out into the rooms, which is why the unit and the ducts are best cleaned together. The sooner the work is done, the simpler the job for a site in Bushey.
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we’ll explain each part.
What you get with us
- We’re fully insured
- One number for every site across the South East and London
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Fixed quotes from a survey or photos
More services for Bushey
Bushey buildings and their air
There are about 18 schools, colleges and universities and about 13 caring premises (care homes, nurseries and hospitals) on the FSA’s food hygiene register within roughly a mile and a half of the centre of Bushey. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. Bushey, about 15 miles from central London, is within our usual area. Evening, overnight and weekend visits are all possible. The nearest hospital to Bushey is Watford General Hospital, about 2.1 miles west. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Healthcare buildings such as Watford General Hospital, about 2.1 miles west, depend on their ventilation; if you manage a surgery, clinic or care home near Bushey, yours matters too. For schools like Little Reddings Primary School, the holidays are the usual time to inspect and clean ventilation.
Bushey is about 2 miles south-east of Watford, in Hertfordshire. Anywhere in WD23, we cover AHU cleaning for commercial sites. Bushey is one of 381 towns, villages and districts in Hertfordshire we cover for commercial clients. We also work in London, about 15 miles from Bushey.
Our technicians cover all of WD23, WD25 and HA7 for AHU cleaning and the roads nearby. Local streets include High Street, London Road and Chiltern Close, and we cover them all for AHU cleaning. With the A41 and A409 close by, Bushey is simple for us to get to for AHU cleaning. We also cover the places around Bushey: Bushey Heath (1 mile south-east), Oxhey (1 mile west), Watford Heath (1 mile west), Patchetts Green (1 mile north) and Carpenders Park (2 miles south-west). Within a short drive, we also cover Hemel Hempstead (9 miles north-west), St Albans (7 miles north), Welwyn Garden City (13 miles north-east), Harpenden (12 miles north), Cheshunt (14 miles east) and Hatfield (10 miles north-east).
Near you in Bushey
Around Bushey, our work takes us to kitchens and buildings near Bushey Meads School, Horse And Chains Public House and St. Hilda's School. The nearest railway station is Bushey station, about 1.3 miles west of the centre. A little further out are Bentley Priory Museum (1.3 miles south-east) and Harlequin Centre (1.8 miles north-west). For a walk, there’s Stanmore Common.
Landlords, agents and facilities managers
Whether it’s one building or many, you get the same standard: diagnosis, a fixed price, work booked around your hours and a written report with pictures.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.