West Sussex · Air handling unit cleaning
Air handling unit cleaning in Furnace Green, West Sussex
AHU cleaning across Furnace Green and nearby, timed so the site keeps working and finished with a written report and photos.
- Air handling units with blocked filters
- Air handling units never cleaned inside
- Dirty fans and fan housings
About our AHU cleaning in Furnace Green
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, once the unit has been shut down and isolated. We are often asked to deal with condensate trays that won’t empty and odours coming through the supply air, across supply and extract fans, drain trays and dampers and louvres.
In a place like Furnace Green, air handling units are often tucked into roof spaces or small plant rooms, out of sight and easy to overlook. Filters, coils and drain trays need attention whatever the size of the unit.
A written report with pictures follows each visit, so you have a record of what was done and when. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Place
- Furnace Green (RH10)
- Region
- West Sussex
- Records
- Written report with pictures
- Price
- Fixed quote, normally within a working day
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Furnace Green: your questions answered
Will you come out to Furnace Green?
Yes, smaller places are covered as well as towns. The journey is planned ahead, so a few details about the route help.
Can you clean school ventilation in Furnace Green during the holidays?
Yes. Half-terms and the summer break are the natural time for school work. Around Furnace Green, the Food Standards Agency lists about 13 schools and colleges with registered kitchens within a mile and a half or so. Tell us your holiday dates and we will book the visit for when the site is empty.
What does AHU cleaning cost?
Size, condition, access and working hours all affect the cost. Call for a fixed quote and we will usually reply within one working day.
When should our AHU next be cleaned?
It depends on the unit, the filters and how the building is used. Regular inspection shows when it’s due, and the report recommends a next date.
Which parts of an air handling unit do you clean?
Filters, coils, drain trays, the fan and the internal surfaces are all covered. Filters are cleaned or changed as agreed in the quote.
Can you fix a faulty AHU?
Motors, belts, controls and coils that need repair are a job for your maintenance contractor. We clean the unit and report anything we see that needs attention.
How long will the unit be out of action?
The work takes from a few hours for a compact unit to a day or more for a large one. Bigger units can be phased, and you can call us on 0345 646 2711 or email us to plan it.
Can you clean the ducts connected to the AHU?
Yes. We clean supply and extract ductwork to TR19® Air as well. Cleaning the unit and ducts together often makes sense, and we can survey both on the same visit.
What affects the quote in Furnace Green
The survey tells us what the work involves. The main factors are:
- Whether it’s a one-off visit or part of a schedule
- How big the system is
- How easy every part is to reach
- Working hours and out-of-hours timing
One small site or a whole estate, the quote is built the same way: what needs doing, how we get to it and when. You will have a fixed price before any work starts.
Asking for a quote
Many jobs can be priced from photos and some basics. Useful things to send:
- The roof, plant room or outside wall the system runs to
- Detail shots of panels, filters and grilles
- Problems your staff have spotted
- The site address and the type of premises
Every quote begins with a look at the system, from your photos and details or, where that is not enough, a survey on site. Then we send a fixed price so you know the cost before work begins.
AHU cleaning in Furnace Green: local notes
There are about 13 schools, colleges and universities and about 16 hospitals, care homes and childcare premises on the FSA’s food hygiene register in and around Furnace Green, up to about a mile and a half out. Busy, occupied buildings like these are where clean supply air matters most. Furnace Green, about 28 miles from central London, is within our usual area. Evening, overnight and weekend visits are all possible. Crawley Hospital is the nearest hospital, about 2 miles north-west of Furnace Green. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
If you run a surgery, dental practice or care home near Furnace Green, clean ventilation matters as much to you as to a hospital like Crawley Hospital (about 2 miles north-west).
Furnace Green is about 2 miles south-east of Crawley, in West Sussex. Whether your site is in the middle of Furnace Green or further out, we cover AHU cleaning for every kind of premises, from a single unit to a large public building. Our area takes in 371 places across West Sussex, large and small. For sites nearby, see our Brighton page, about 18 miles away.
Postcode districts we cover here for AHU cleaning: RH10. You’ll find streets such as Marion Road, Holder Road and Bolton Road, and we cover them all for AHU cleaning. If your site is just outside Furnace Green, we cover Pease Pottage (2 miles south-west), Worth Abbey (2 miles east), Balcombe Lane (2 miles south-east), Balcombe (3 miles south-east) and Staplefield (4 miles south). We also work in nearby towns such as Horsham (7 miles west), Haywards Heath (7 miles south), Burgess Hill (10 miles south), East Grinstead (7 miles east), Billingshurst (14 miles south-west) and Bewbush (3 miles west).
Around Furnace Green
Around Furnace Green, our work takes us to kitchens and buildings near Oriel High School, The Charcoal Burner pub and Tilgate Park and the streets around them. Furnace Green’s nearest station is Three Bridges station, about 1.2 miles north of the centre. Other landmarks nearby include Crawley Museum (1.8 miles north-west) and Crawley Hospital (2 miles north-west). For a walk, there’s Tilgate Lake.
Managing agents and facilities teams in Furnace Green
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 on a regular cycle.
From a single site to a large estate, the standard is the same: diagnosis, a fixed price, work booked around your hours and a written report with photos.
Why deal with it now?
A light clean now is simpler than a heavy one later. Leave it for years and dirt bakes onto coils and casings, particularly where damp has made it stick. A site near Furnace Green that has to close at short notice is hard to cover for.
Several systems or sites on one quote often makes better use of the time. Mention every system or site you need covered, and you’ll get one fixed quote.
Why book with us
- A written report with photos after each visit
- In business since 2009
- CHAS and SafeContractor accredited, with ISO 9001
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
See what affects the cost and our accreditations and certificates.
Towns and villages near Furnace Green
What else we do in Furnace Green
Do you need AHU cleaning in Furnace Green?
Planned maintenance often covers belts, motors and filters but not cleaning. So a unit can be well maintained and still dirty.
Keep an eye out for any of the following:
- Dirty fans and fan housings
- Debris and leaves in the fresh air intake
- Stale or musty smells from the ventilation
- Condensate trays that won’t empty
For schools like Brook Infant School, the holidays are the usual time to inspect and clean ventilation.
Comparing quotes
- Proof of accreditation you can verify
- What hours they’ll be on site
- Whether they’re fully insured
- Whether the whole system is included, or only the parts that are easy to reach
What the work involves, part by part
Drain trays
Standing water in a tray sits right where the air passes. We clean it and report anything about the tray or drain that needs fixing.
Rooftop and plant room units
Rooftop units take the weather, and intakes can collect leaves and debris. We clean the intake and first stage of filters along with the rest.
How it works
Everything the job needs comes with us, including protection sheets, the right tools and access kit. You only need to give us clear access and switch off what needs to be off. On site, the work takes a single shift for a typical unit, longer for large or heavily soiled ones. In a place like Furnace Green, we fit the visit around your hours.
- The survey covers the unit, its access and how it can be shut down.
- 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.
Preparing for the visit
- Dig out any earlier paperwork for the system
- Make sure equipment near the work can be switched off and left to cool
- Tell us where we can park and unload
How to get a quote
Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and many jobs can be priced from that alone.
Read more
When it’s something else
To be straight with you, some problems need a different fix:
- Dirty ducts beyond the unit itself
- Damaged coils beyond cleaning
- Controls and BMS settings that run the unit
Not sure which it is? You can phone us on 0345 646 2711 or use the quote form and we will tell you honestly.
Where we work
- Heating and cooling coils
- Drain trays
- Dampers and louvres
- Internal panels
- Filter sections
- Supply and extract fans