West Sussex · Air handling unit cleaning
Adversane AHU cleaning
Professional AHU cleaning in and around Adversane, timed so the site keeps working and finished with a written report and pictures.
- Plant that needs cleaning after a refit
- Leaves and litter drawn into the unit
- Odours coming through the supply air
What affects the quote in Adversane
Every site gets its own quote. These are the things that affect it:
- Access, including roofs, risers and ceiling voids
- The scale of the work
- The condition we find in the survey
- The times the site is available
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. You’ll have a fixed price before work begins.
Asking for a quote
You don’t need the technical terms. It helps if you can send:
- When the site is open and when it’s quiet
- Wide pictures of the system and the area around it
- Where the site is and what kind of site it is
- Close-ups of filters, grilles, hatches or access panels
For AHU cleaning in Adversane, call 0345 646 2711 or use the quote form. Tell us what kind of premises it is and when it’s open, plus photos or the previous report if they’re to hand. A fixed quote usually follows within one working day.
AHU cleaning in Adversane
All the building’s air passes through the fan, so dust on its blades and housing ends up in the airstream. Fan, housing and the surrounding panels are cleaned as part of the job, with the unit switched off and made safe first. The work covers internal panels, heating and cooling coils and filter sections, and the jobs we see most are odours coming through the supply air and dirty filters cutting the airflow.
In a village or hamlet like Adversane, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we are fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.
- Where
- Adversane (RH14)
- Wider area
- West Sussex
- Paperwork
- Report and photos after the visit
- Price
- A fixed price before any work starts
- Hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Landlords, agents and facilities managers
When the building owner and the occupier are different, the lease normally sets out who maintains what. We’re happy to deal with either side and send the paperwork to whoever needs it.
Multi-site operators often want one contractor and one number. We cover South East England and London, so visits at different addresses can be planned together and kept to a regular schedule.
AHU cleaning in Adversane: local notes
Adversane, about 38 miles from central London, is within our usual area. Evening, overnight and weekend visits are all possible.
Classrooms and halls at schools such as The Weald School are easiest to work in when pupils are away.
Adversane is about 8 miles south-west of Horsham, in West Sussex. Anywhere in RH14, we can take on AHU cleaning. Across West Sussex, we cover 371 places, and Adversane is one of them. You can also see our page for Guildford, roughly 18 miles from Adversane.
We work across RH14 for AHU cleaning and the roads nearby. Whether your site is on Stane Street, Adversane Lane and Lordings Road or a nearby road, we can help. Close by, we work in North Heath (1 mile south), Gay Street (2 miles south), Codmore Hill (2 miles south-west), Broomershill (2 miles south) and Nutbourne (3 miles south). We also work in nearby towns such as Crawley (15 miles north-east), Horsham (8 miles north-east), Worthing (12 miles south), Burgess Hill (15 miles east), Littlehampton (13 miles south) and Shoreham-by-Sea (14 miles south-east).
Landmarks near Adversane
The closest station to Adversane is Billingshurst station, roughly 1.5 miles north-east. Not far away are The Mens.
What we do, step by step
On the day, we arrive at the time agreed with you, which is often after service, overnight or at a weekend. Anything that needs to be off for the work is switched off and left to cool before any work starts, and the area around the work is covered and protected. On site, it takes anything from half a day for one small unit to several shifts for a plant room full of them. Rural roads and tight entrances are worth telling us about before a visit to Adversane.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before photos of each section of the unit.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- We take after photos and issue the certificate and report.
Getting ready for the visit
- Find the previous report, if there is one
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Make sure someone can let us in and lock up afterwards
Get a fixed quote
Quotes are quick. Call or email with a few details and you’ll normally have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.
Related advice
Towns and villages near Adversane
What else we do in Adversane
FAQs for Adversane
Is Adversane within the area you cover?
Yes, smaller places are covered as well as towns. The journey is planned ahead, so a few details about the route help.
Can you work in Adversane outside opening hours?
Yes, nights and weekends are routine for us. The work in Adversane can fit around your hours. Just ring 0345 646 2711, or send details by email with your opening times and we’ll plan around them.
What’s included in an AHU clean?
We clean the filter section, heating and cooling coils, drain trays, fan and internal casing. Filters are cleaned or changed as agreed in the quote.
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 carry full insurance.
What does TR19 mean?
TR19® is BESA’s specification for ventilation hygiene. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Do you have a 24/7 line?
Yes. Our emergency line runs 24/7 for anything that can’t wait until a planned visit. Call us any time and explain what’s happened.
Do you survey before quoting?
Yes. Every job is surveyed first, either from photos and details you send or on a site visit. A fixed quote follows.
What do you need from me for a quote?
The site address, the type of premises and your opening hours, along with a few photos and any previous report.
When something else is needed
We won’t sell you work that doesn’t address the problem, so these are the things it won’t cover:
- Airflow problems caused by the system’s design
- Controls and BMS settings that run the unit
- Dirty ducts beyond the unit itself
If you’re not sure, just ring 0345 646 2711 or email us and we will give you a straight answer before booking.
What the work covers
- Heating and cooling coils
- Drain trays
- Internal panels
- Supply and extract fans
- Dampers and louvres
- Filter sections
What happens if it’s left?
A light clean now is simpler than a heavy one later. Leave it for years and dirt bakes onto coils and casings, especially where there’s been moisture. A fault that closes a site in a village like Adversane affects everyone who depends on it.
The cost depends on the size of the system, what state 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.
Why choose Duct Doctor in Adversane
- We are fully insured
- Survey first, then a fixed quote
- In business since 2009
- Work around your opening hours, with 24/7 emergency cover
Take a look at our cost guide or how to check a contractor.
How the job changes from site to site
Internal casing and panels
We open each section through its doors and close them securely when we are done before the unit is handed back.
Filters
Every AHU relies on its filters to catch dust before it reaches the coils. We check them, and clean or change them as agreed in the quote, and clean the filter housing.
Do you need AHU cleaning in Adversane?
Filters catch most of the dust, but not all of it. What gets through settles on coils, fans and the inside of the casing, a little more each month.
It’s time to book a visit if you see:
- Air handling units due a clean after building work
- Coils clogged with dust and debris
- Dirty filters cutting the airflow
- Stale or musty smells from the ventilation
In Adversane, we look inside the system before deciding what needs cleaning.
What to look for in a quote
- What records you will receive afterwards
- Exactly which parts of the system are covered
- Proof of insurance
- Whether they recommend a next date