West Sussex · Air handling unit cleaning
Air handling unit cleaning in West Green, West Sussex
Air handling unit cleaning for commercial sites in West Green and across West Sussex. CHAS, SafeContractor and ISO 9001, and fully insured.
- Leaves and litter drawn into the unit
- Odours coming through the supply air
- Condensate trays that won’t empty
How we handle AHU cleaning in West Green
Our AHU cleans for sites in West Green cover the parts that collect dirt: filters, coils, drain trays, fans and the internal panels. Every clean comes with a TR19® certificate and before and after pictures in a report. Common call-outs are for air handling units due a clean after building work and drain trays holding standing water, across supply and extract fans, heating and cooling coils and dampers and louvres.
Smaller buildings around West Green often keep their ventilation units in a roof void or plant cupboard, where they’re easy to forget. Filters, coils and drain trays need attention whatever the size of the unit.
For insurers and inspectors, the record counts. That’s why every job is written up in a report with photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Place
- West Green (RH11, RH10)
- Region
- West Sussex
- Paperwork
- Written report with photos
- Quote
- A fixed price before any work starts
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Landlords, agents and facilities managers
Keeping records across a portfolio is half the battle. Every visit ends with a dated report and photos, ready to show insurers, fire officers or EHOs.
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we are happy to quote for all of it.
Questions from West Green
Can a school’s ventilation in West Green be done out of term time?
Yes. The holidays are the usual time for school work. With about 21 schools and colleges on the FSA’s register within roughly a mile and a half of West Green, it pays to plan holiday dates ahead. Booking early in the term gives the best choice of holiday dates.
Can you come to West Green after we close?
Yes, out-of-hours work is a big part of what we do. The work in West Green can fit around your hours. Your opening times are the first thing we ask for.
Can you set up regular visits?
Yes. We run scheduled maintenance contracts, with visits at the interval your system needs. The report from each visit recommends the next date.
What accreditations do you have?
We are 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.
What information do you need?
A short description and a few photos, with the address and opening hours. If we need more, we will ask.
Does the AHU have to be shut down for cleaning?
Yes. The fan must be stopped and the unit isolated, and we time the work to suit the site.
Are you insured?
Yes. Duct Doctor is fully insured, and we can share the details when you need them.
Where does the waste go?
It leaves the site with us when we go. During the work, it’s contained so the area stays clean.
Keeping the system healthy
Once we have finished, these simple steps help:
- Do not ignore odours coming through the grilles
- Make sure condensate is draining away
- Report water on the plant room floor
- Keep the certificate and photo report with the plant records
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.
Regular filter changes are the best protection an AHU has. Once filters clog, dirt starts getting past them.
Why deal with it now?
Cleaning a unit while it only has light dust is quick. Years of build-up make the job longer and harder, especially where there’s been moisture. In a smaller place like West Green, a site that has to close is felt quickly.
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all play a part.
Why us?
- Evenings, overnight and weekends, plus 24/7 emergency callout
- A single point of contact for sites across the South East and London
- CHAS and SafeContractor accredited, with ISO 9001
- A written report with pictures after every visit
Take a look at what affects the cost or how to check a contractor.
Do you need AHU cleaning in West Green?
Filters that aren’t changed or cleaned on time clog up, which cuts the airflow and can let air slip round the filter. After that, the coils and fan collect what the filter should have caught.
Any of these means the system needs a check-up:
- Dust-coated heating and cooling coils
- Plant that needs cleaning after a refit
- Dirty filters cutting the airflow
- Plant that has been serviced but not cleaned
If you manage shops or offices close to Crawley station, a TR19® Air inspection shows whether the ductwork needs cleaning.
Questions to ask before booking
- Whether they recommend a next date
- What happens if part of the system can’t be accessed
- Proof of accreditation you can verify
- Whether VAT is included
Places near West Green
More services for West Green
What staff can safely do
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We will take a look and give you a fixed quote.
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
Part by part
Drain trays
Older trays can corrode and start leaking. We record their condition with pictures so you can decide on any repairs.
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.
AHU cleaning in West Green: local notes
There are about 21 schools, colleges and universities, about 22 hospitals, care homes and childcare premises and about 12 hotels, B&Bs and guest houses on the FSA’s food hygiene register in West Green and the streets around it, up to about 1.5 miles out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. The nearest hospital to West Green is Crawley Hospital, about 0.5 miles south-west. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital. West Green is about 26 miles from central London, well within the area we cover across London and the South East. A survey and a fixed quote come first, then the visit at a time that suits you.
Hospitals such as Crawley Hospital (about 0.5 miles south-west) show how much a building can rely on clean ventilation, and smaller healthcare sites near West Green are no different. Classrooms and halls at schools such as West Green Primary School are easiest to work in when pupils are away.
West Green is about 1 mile north of Crawley, in West Sussex. Wherever you are in the RH11 postcode area, we can carry out AHU cleaning at your premises. Our area takes in 371 places across West Sussex, large and small. There’s also a page for Guildford, about 19 miles away.
Work in RH11 and RH10 follows the same survey, fixed quote and written report as everywhere else we cover. That includes premises on Bank Lane, Swift Lane and Raven Lane and the roads around them. We also cover Langley Green (1 mile north), Crawley (1 mile south), Southgate (1 mile south), Three Bridges (1 mile east) and Tilgate (1 mile south-east). Larger places within reach include Horsham (7 miles south-west), Haywards Heath (10 miles south-east), Burgess Hill (12 miles south), East Grinstead (8 miles east), Billingshurst (13 miles south-west) and Roffey (6 miles south-west).
What’s near West Green
In West Green, that means kitchens and buildings near Ifield Community College, Grattons Park and Dr Samuel Johnson pub. West Green’s nearest station is Crawley station, about 0.8 miles south of the centre. A little further out are Crawley Museum (under half a mile south) and Crawley Hospital (0.5 miles south-west). Green spaces nearby include Tilgate Lake.
How it works
We start by comparing what we find with the survey or your photos. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes from a few hours for a compact unit to a day or more for a large one. Everything the job in West Green needs is worked out beforehand, from the survey.
- We survey the unit from photos or on site and agree what’s included.
- We arrange the shutdown with your staff and sheet the area.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- We clean out the drain tray and make sure it drains.
- We close up the unit and send the certificate and before and after photos.
How to prepare
- Clear loose items from the work area
- Let us know when the site is closed or quiet
- Mention any locked doors, roof access or ceiling voids
Getting a quote
For AHU cleaning in West Green, call 0345 646 2711 or use the quote form. Let us know the site type and the opening hours, and send pictures or your last report if you can. We usually send a fixed quote within one working day.