West Sussex · Air handling unit cleaning
Air handling unit cleaning in Amberley, West Sussex
One call covers cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Amberley: survey, fixed quote, work and sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Dust-coated heating and cooling coils
- Rooms that smell stuffy when the system runs
- Debris and leaves in the fresh air intake
Honest limits
Before booking, it helps to know what’s not included:
- Coils that are corroded or leaking and need replacing
- Ductwork downstream of the unit, which is a separate clean
- Mechanical faults with motors, belts or bearings
If you are not sure, just phone us on 0345 646 2711 or email us and we’ll give you a straight answer before you book.
What we work on in Amberley
- Supply and extract fans
- Heating and cooling coils
- Dampers and louvres
- Drain trays
- Internal panels
- Filter sections
AHU cleaning for kitchens and businesses in Amberley
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. We clean coils with methods suited to their condition, taking care not to damage the fins. The work covers internal panels, drain trays and heating and cooling coils, and the jobs we see most are blocked condensate drains and slimy trays and dirty coils holding back the airflow.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, where filters and drain trays get forgotten.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we’re fully insured.
- Where
- Amberley (BN18)
- Region
- West Sussex
- Paperwork
- Written report with photos
- Price
- A fixed quote up front
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
For landlords and multi-site operators
Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We’re happy to deal with either side and send the paperwork to whoever needs it.
We work for landlords, managing agents and facilities managers as well as the people running the site. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we’re happy to quote for all of it.
What affects the cost of AHU cleaning
The price is fixed before any work begins. It takes into account:
- The number of sites or systems
- The scale of the work
- Site requirements such as sign-in and permits
- Whether it’s a one-off visit or part of a schedule
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 work begins, so you know where you stand.
Helping us quote
What to send for a quote:
- Any symptoms, from odd noises to smells or leaks
- Close-ups of filters, grilles, hatches or access panels
- The postcode and the type of business
- Your opening hours and when the area is out of use
To get a fixed quote, call us on 0345 646 2711 or email us and tell us the type of site, your opening hours and roughly what the system looks like. A few photos and your last certificate or report help a lot. We normally come back within one working day.
What happens on the day
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 before work begins, and floors and nearby surfaces are sheeted. The work itself takes one overnight shift for many single units, with bigger plant phased. Seeing the system in pictures first means the trip to Amberley can be planned properly.
- First the unit is surveyed, from photos or a visit, and the scope agreed.
- The unit is shut down with your site team and the area protected.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- We clean out the drain tray and make sure it drains.
- A TR19® certificate and photo report follow the clean.
Before we arrive
- Tell us the best time to work, such as after service or at a weekend
- Arrange a key holder or contact on site
- Let us know about parking and loading
Getting a quote
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, the quote is fixed before any work is booked.
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What the work involves, part by part
Rooftop and plant room units
Rooftop units take the weather, and intakes can collect leaves and debris. The intake section gets particular attention.
Drain trays
The drain tray collects water from the cooling coil. We clear standing water, clean out slime and check the outlet is draining.
Amberley questions
Do you do school ventilation cleaning in Amberley in the summer holidays?
Yes, holiday work suits schools best. With about 2 schools and colleges on the FSA’s register within roughly a mile and a half of Amberley, it pays to plan holiday dates ahead. You can ring 0345 646 2711 or drop us a line with the dates the site is empty.
Is Amberley within the area you cover?
Yes. Villages and rural sites across the South East are part of our work, Amberley included. Let us know about access, parking and anything unusual about getting there when you book.
Can you price the work without visiting?
Yes, where the pictures show enough. Otherwise, we book a survey at a time that suits the site, then a fixed quote.
Can one contract cover all our sites?
Yes. One number covers all your sites across London and the South East, with visits on a regular schedule.
What information do you need?
Just the basics: where it is, what kind of site, when it’s open and the access. Photos and the last report help too. Then give us a ring on 0345 646 2711 or drop us a line.
How often do AHUs need cleaning?
Inspection under TR19® Air decides it. Units in heavy use or in sensitive buildings may need attention more often.
What does TR19 mean?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It covers how systems are inspected, cleaned and checked and expects a risk-based approach.
Do you have a 24/7 line?
Yes, any time. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line, and we will advise on what to do next.
Nearby places to Amberley
Also in Amberley
Amberley buildings and their air
About 45 miles out from central London, Amberley is part of the South East area we work across. A survey and a fixed quote come first, then the visit at a time that suits you. For Amberley, the closest hospital is Arundel and District Hospital, roughly 3.9 miles south. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
Healthcare ventilation, from large hospitals like Arundel and District Hospital (about 3.9 miles south) to small clinics, depends on clean filters, coils and ducts. If you run an office near Amberley station, its supply ductwork can gather dust for years before anyone looks inside. For schools like Amberley CofE Primary School, the holidays are the usual time to inspect and clean ventilation.
Amberley is about 7 miles north of Littlehampton, in West Sussex. Whether your site is in the middle of Amberley or further out, we cover AHU cleaning for every kind of premises, from a single unit to a large public building. Amberley is one of 371 towns, villages and districts in West Sussex where we work for commercial clients. You can also see our page for Brighton, about 18 miles away.
Postcode districts we cover here for AHU cleaning: BN18. Whether your site is on School Road, Turnpike Road and Hog Lane or a nearby road, we can help. We also cover the places around Amberley: Cross Gate (1 mile north-east), Bury (1 mile west), Rackham (1 mile east), Watersfield (2 miles north-west) and West Burton (2 miles west). Within a short drive, we also cover Horsham (14 miles north-east), Worthing (8 miles south-east), Bognor Regis (10 miles south-west), Chichester (12 miles south-west), Littlehampton (7 miles south) and Shoreham-by-Sea (13 miles south-east).
Local landmarks in Amberley
Locally, jobs take us to businesses close to Dorset House School and Parham Park, among other places. The closest station to Amberley is Amberley station, about 0.8 miles south-west. A little further out are Amberley Castle (under half a mile west) and Arundel and District Hospital (3.9 miles south). The countryside around Amberley includes Amberley Wild Brooks and Bignor Hill.
What your team can do, and what needs us
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. That is our job.
Between visits
Here’s the after-treatment advice, short and simple:
- Book the next check in line with the report
- Do not ignore odours coming through the grilles
- Clear leaves and litter away from the intake
- Report water on the plant room floor
The report shows each section of the unit before and after, along with anything we couldn’t reach. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air, rather than waiting for a problem.