West Sussex · Air handling unit cleaning
AHU Cleaning in Bilsham
AHU cleaning in Bilsham, surveyed first and signed off with a written report and photos. Call for a fixed quote.
- Air handling units never cleaned inside
- Fan sections that haven’t been cleaned in years
- Filters that are clogged or overdue
AHU cleaning for kitchens and businesses in Bilsham
The fan pushes every bit of air in the system, so dust on its blades and housing ends up in the airstream. We clean the fan section along with the rest of the unit, with the unit switched off and made safe first. We’re often asked to deal with intake sections clogged with outdoor debris and air handling units due a clean after building work, on supply and extract fans, heating and cooling coils and filter sections.
Work in a small place like Bilsham starts with agreeing access and timings.
The report is your system’s health record: dated, with photos, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.

- Place
- Bilsham (BN18)
- Wider area
- West Sussex
- Reporting
- Written report with pictures
- Quotes
- A fixed price before we start
- When we work
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
Keeping the system healthy
Aftercare is simple, and it makes the next visit easier:
- Book the next check in line with the report
- Do not ignore odours coming through the grilles
- Keep inspection doors on the unit in good order
- Check the drain tray is emptying during routine visits
The report shows each section of the unit before and after, and note any part we couldn’t get to. It also notes faults we spotted, such as damaged panels or a blocked drain.
Regular inspection under TR19® Air shows when cleaning is due instead of leaving it to guesswork.
Also near Bilsham
Other services in Bilsham
How the job changes from site to site
Rooftop and plant room units
Many AHUs sit on roofs or in plant rooms with limited access. Access is planned during the survey, before we quote.
Filters
Filters are the first line of defence in the unit. We check them, and clean or change them as agreed in the quote, and the housing around them is cleaned too.
How it works
Your trading hours come first. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the job takes one overnight shift for many single units, with bigger plant phased. If you can send pictures, we can arrive in Bilsham knowing what to expect.
- We survey the unit from pictures 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.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- Standing water and slime come out of the tray and the drain is checked.
- You get a TR19® certificate and a photo report.
Before we arrive
- Arrange a key holder or contact on site
- Dig out any earlier paperwork for the system
- Tell us where we can park and unload
Get a fixed quote
Here’s what helps 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, call 0345 646 2711 or email us.
Related advice
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, especially where there’s been moisture. It’s simpler to plan the work at Bilsham now than to arrange it in a hurry later.
You won’t find a price list here, because the cost depends on the site in front of us. For a fixed quote, call 0345 646 2711, or email photos, and we’ll explain what it covers.
Why Bilsham businesses choose us
- Every job surveyed first
- Ventilation hygiene specialists since 2009
- A fixed price before any work starts
- A single point of contact for sites across the South East and London
Take a look at what affects the cost or how to check a contractor.
Bilsham questions
Can you work in Bilsham outside opening hours?
Yes, out-of-hours work is a big part of what we do. The site is handed back ready to open. Let us know the hours you’re closed and we’ll book within them.
Do you do school ventilation cleaning in Bilsham in the summer holidays?
Yes, holiday work suits schools best. There are about 6 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Bilsham. Tell us your holiday dates and we’ll book the visit for when the site is empty.
Can you price the work without visiting?
Yes, for many jobs. Send a few wide photos plus close-ups of panels, filters or grilles, and a fixed quote typically follows within one working day. If photos aren’t enough, we’ll survey first.
How much does AHU cleaning cost?
Size, condition, access and working hours all affect the cost. Call for a fixed quote, usually ready within one working day.
How much notice should we give?
Earlier is better, particularly for night and weekend visits. Quotes normally come back within one working day, and emergencies are covered by our 24/7 line.
What’s included in an AHU clean?
All the internal parts the air touches, from the intake and filters through the coils and fan to the outlet. The photo report shows each section before and after.
What is TR19?
It’s BESA’s specification and the benchmark insurers, fire officers and EHOs look to. It sets out inspection, cleaning and record keeping and expects a risk-based approach.
What types of premises do you cover?
All kinds of commercial and public premises: from restaurants, pubs and hotels to schools, hospitals, care homes, offices, shops and food production sites. We fit the work around how the site operates.
What staff can safely do
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they do not reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
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. Leave those to us.
AHU cleaning around Bilsham
Food Standards Agency data includes about 6 schools, colleges and universities and about 5 caring premises (care homes, nurseries and hospitals) within about 1.5 miles of central Bilsham. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. Bilsham’s nearest hospital, Bognor Regis War Memorial Hospital, is about 2.8 miles south-west. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. About 53 miles out from central London, Bilsham is part of the South East area we work across. Visits are booked around your hours, evenings and weekends included.
If you run a surgery, dental practice or care home near Bilsham, clean ventilation matters as much to you as to a hospital like Bognor Regis War Memorial Hospital (about 2.8 miles south-west).
Bilsham is about 3 miles north-east of Bognor Regis, in West Sussex. Bilsham gets the same approach as every site we work on: a survey first, a fixed quote, work timed around your hours and a report with pictures. Across West Sussex, we cover 371 places, Bilsham among them. Portsmouth is in our area too, around 20 miles away.
Here we cover the BN18 postcode area for AHU cleaning. We also cover the places around Bilsham: Yapton (1 mile north), Flansham (1 mile west), Barnham (2 miles north-west), West Barnham (2 miles north-west) and Lidsey (2 miles west). We also work in nearby towns such as Worthing (10 miles east), Bognor Regis (3 miles south-west), Chichester (7 miles west), Selsey (9 miles south-west), Littlehampton (4 miles east) and Shoreham-by-Sea (15 miles east).
Near you in Bilsham
Locally, jobs take us to businesses close to Felpham Community College. For rail, the closest station is Barnham station, about 1.8 miles north-west of the centre. A little further out are Bognor Regis Museum (3.3 miles south-west) and Bognor Regis War Memorial Hospital (2.8 miles south-west). Not far away are WWT Arundel.
Fixed quotes for AHU cleaning in Bilsham
Before we fix a price, we need to know a few things. We check:
- One-off work versus a regular cycle
- How big the system is
- How easy every part is to reach
- Parking and loading at the site
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
There’s no need for technical detail. It helps if you can send:
- The site address and the type of premises
- The roof, plant room or outside wall the system runs to
- Your opening hours and when the area is out of use
- The paperwork from the last visit, if you have it
Need a price for AHU cleaning? Please call us on 0345 646 2711 or drop us a line and tell us about the site. We’ll talk you through the work and give you a fixed quote before anything is booked.
When to call us in Bilsham
Cooling coils create condensation, and that water has to go somewhere. If the drain tray outlet blocks or the tray doesn’t fall properly, water stands in it, and that is where slime and odours start.
If you notice any of these, it’s worth a diagnosis:
- Blocked condensate drains and slimy trays
- Dirty coils holding back the airflow
- Air handling units never cleaned inside
- Fan sections that haven’t been cleaned in years
School buildings such as Yapton CE Primary School are typically done in the holidays, so classrooms aren’t disturbed.
What to look for in a quote
- What hours they’ll be on site
- Whether the quote is based on a survey or photos
- Whether a written report and photos are included
- Whether the quote shows VAT