West Sussex · Air handling unit cleaning
Air handling unit cleaning in Earnley, West Sussex
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Earnley, surveyed first and signed off with a written report and photos. Ask us for a fixed quote.
- Coils clogged with dust and debris
- Rooms that smell stuffy when the system runs
- Leaves and litter drawn into the unit
Between visits
Once we have finished, these simple steps help:
- File each AHU report in the maintenance log
- Report water on the plant room floor
- Book the next check in line with the report
- Change filters on schedule and log each change
The report suggests a date for the next inspection or clean, taking into account how dirty it was. Under TR19® Air the timing is set by inspection and risk, not a fixed calendar.
Do not let leaves, litter or stored materials build up near the fresh air intake. What’s near the intake ends up in the unit.
AHU cleaning in Earnley
A cooling coil drips condensate into a tray that should drain away. If the outlet blocks, standing water and slime build up, in the airstream that feeds the building. Clearing and cleaning the tray is central to every AHU clean. Typical jobs include debris and leaves in the fresh air intake and blocked condensate drains and slimy trays, across filter sections, heating and cooling coils and supply and extract fans.
In a village or hamlet like Earnley, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
For insurers and inspectors, the record counts. So every job comes with a written report and pictures, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Where
- Earnley (PO20)
- Region
- West Sussex
- Paperwork
- Written report with photos
- Price
- Fixed quote, normally within a working day
- Hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
The process
The first job on site is protection: floors, worktops and anything near the work are covered. Then we make the system safe and start. The work on site takes a single shift for a typical unit, longer for large or heavily soiled ones, and the area is cleaned down before we leave. Seeing the system in pictures first means the trip to Earnley can be planned properly.
- We survey the unit from photos 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.
- A TR19® certificate and photo report follow the clean.
How to prepare
- Find the previous report, if there is one
- Allow time for equipment near the work to be turned off and cool down
- Let us know about parking and loading
Getting a quote
To help us quote: where the site is, what it is and its opening hours, photos of the system and the last certificate or report, if there is one. Once you have those, phone us on 0345 646 2711, or email photos.
Read more
Common problems we fix in Earnley
Planned maintenance often covers belts, motors and filters but not cleaning. That means a unit can tick every service box and still be carrying years of dirt.
If you notice any of these, it’s worth a diagnosis:
- Fan sections that haven’t been cleaned in years
- Air handling units due a clean after building work
- Odours coming through the supply air
- Leaves and litter drawn into the unit
For buildings in and around Earnley, TR19® Air cleaning starts with an inspection.
Comparing quotes
- When they can work, and whether that is outside your opening hours
- Whether the price is fixed
- How areas they can’t reach will be recorded
- Exactly which parts of the system are covered
Nearby places to Earnley
More services for Earnley
Multi-site and managed buildings
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we are happy to quote for all of it.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.
How we price AHU cleaning
You will get a fixed price before we start. It takes into account:
- What state the system is in
- The number of sites or systems
- Parking and loading at the site
- When the work can happen, such as evenings, overnight or weekends
No two sites are the same, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
What we need to know
What to send for a quote:
- Your opening hours and when the area is out of use
- Your last certificate, test record or report
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Problems your staff have spotted
The quickest way to a quote is to send photos: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
What AHU cleaning looks like in Earnley
There are about 5 hospitals, care homes and childcare premises on the FSA’s food hygiene register within 1.5 miles or so of the middle of Earnley. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. Earnley, about 60 miles from central London, is within our usual area. Evening, overnight and weekend visits are all possible.
For schools like East Wittering Community Primary School, the holidays are the usual time to inspect and clean ventilation.
Earnley is about 3 miles north-west of Selsey, in West Sussex. We provide AHU cleaning for businesses, landlords and public buildings in Earnley and the rest of West Sussex. Earnley is one of 371 places in West Sussex we cover for AHU cleaning. Our Portsmouth page covers sites nearby, about 11 miles away.
All of PO20 is within our area for AHU cleaning, from busy streets to back roads. AHU cleaning is available to premises on Earnley Manor Close, Bookers Lane and Drove Lane and nearby roads. We also cover the places around Earnley: East Wittering (1 mile west), Almodington (1 mile north-east), Somerley (1 mile north), Shipton Green (2 miles north) and Birdham (2 miles north). Larger places within reach include Bognor Regis (7 miles east), Chichester (6 miles north-east), Selsey (3 miles south-east), Littlehampton (14 miles east), Emsworth (7 miles north-west) and Rustington (15 miles east).
Landmarks near Earnley
Well-known places in the area include Selsey Lifeboat Museum (3.9 miles south-east). Not far away are Pilsey Island.
Why deal with it now?
Stuffy rooms and stale smells in a building in Earnley can sometimes be traced back to the AHU. A clean tackles the source instead of masking it. Our emergency line runs 24/7, but a planned visit to Earnley is calmer for everyone.
The price reflects the work, not guesswork. That’s why every job is surveyed first, and why the quote is fixed before any work starts.
Why choose Duct Doctor in Earnley
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Survey first, then a fixed quote
- In business since 2009
- A single point of contact for sites across the South East and London
Read our cost guide or how to check a contractor.
Questions from Earnley
Can you come to Earnley after we close?
Yes, we can come after you close and finish before you open. The site is handed back ready to open. Let us know the hours you’re closed and we will book within them.
Will you come out to Earnley?
Yes, we work in villages as well as towns, and Earnley is covered. Let us know about access, parking and anything unusual about getting there when you book.
Is there a report after cleaning?
Yes. Every clean comes with a TR19® certificate and a photo report. Keep them in the maintenance log.
Do you repair air handling units?
The clean includes noting faults, but repairs sit with your maintenance contractor, with the details in the report.
Can one contract cover all our sites?
Yes. Tell us the addresses and what each needs and we’ll quote them together.
Do you have insurance?
Yes, we’re fully insured. We also hold CHAS and SafeContractor for clients who vet their contractors.
How often do AHUs need cleaning?
There’s no single answer; it comes down to the building and the unit. Inspection tells you when cleaning is needed, and the report recommends a next date.
What accreditations do you have?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We’ve been trading since 2009 and we’re fully insured.
How the job changes from site to site
Drain trays
Standing water in a tray sits right where the air passes. We clean it and note if the slope or the drain needs attention.
Rooftop and plant room units
Many AHUs sit on roofs or in plant rooms with limited access. Access is planned during the survey so the quote reflects it.