West Sussex · Air handling unit cleaning
AHU Cleaning in Fontwell
AHU cleaning for Fontwell, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Dirty filters cutting the airflow
- Fan sections that haven’t been cleaned in years
- Units that have only ever had filter changes
The process
The visit has three parts: set-up, the treatment itself and the sign-off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with photos. The middle part takes longest, which takes from a few hours for a compact unit to a day or more for a large one. Somewhere as small as Fontwell, the date and timings are agreed with you well before the day.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- The unit is closed up and handed back, with a report to follow.
Before we arrive
- Let us know about parking and loading
- Allow time for equipment near the work to be turned off and cool down
- Make sure someone can let us in and lock up afterwards
Get a fixed quote
Quoting starts with a diagnosis, either from photos and details you send or from a site visit. After that, you get a fixed price for the work, before we start.
Related advice
AHU cleaning in Fontwell
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. The work covers internal panels, filter sections and supply and extract fans, and common reasons people get in touch are units that have only ever had filter changes and coils clogged with dust and debris.
Work in a small place like Fontwell starts with agreeing access and timings, and the ventilation is inspected, cleaned and recorded the same as anywhere.
Nothing is signed off by word of mouth: a dated report with photos of the work, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. Any parts we couldn’t reach are recorded on it too.
- Where
- Fontwell (BN18, PO20)
- Wider area
- West Sussex
- Reporting
- Written report with photos
- Quote
- A fixed price before we start
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
Keeping the system healthy
Think of this as the after-treatment advice, short and simple:
- Flag stale or damp smells in the supply air
- Watch for drips or damp patches near the plant
- Stick to the filter change plan
- Keep inspection doors on the unit in good order
We recommend when the unit should next be inspected or cleaned, based on what we found. TR19® Air is risk-based, so the interval depends on the unit and how the building is used.
Check drain trays and condensate drains during routine maintenance. Catching a slow drain early stops standing water building up.
What affects the quote in Fontwell
We quote each job individually. This is what makes a difference:
- The condition of the system
- When the work can happen, such as evenings, overnight or weekends
- Access, including roofs, risers and ceiling voids
- Where the site is and how we reach it
The price reflects the work, not guesswork. That is why we survey first, from photos or on site, and the price is agreed before work begins.
Helping us quote
What to send for a quote:
- The roof, plant room or outside wall the system runs to
- Detail shots of panels, filters and grilles
- Any symptoms, from odd noises to smells or leaks
- The postcode and the type of business
If you need AHU cleaning in Fontwell, call us on 0345 646 2711 or drop us a line. Tell us what kind of premises it is and when it’s open, plus pictures or the previous report if they’re to hand. We normally send a fixed quote within one working day.
Ventilation in Fontwell buildings
Food Standards Agency records list about 8 schools, colleges and universities and about 8 hospitals, care homes and childcare premises registered as food businesses within 1.5 miles or so of the middle of Fontwell. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. The nearest hospital to Fontwell is Arundel and District Hospital, about 3.7 miles east. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. At about 51 miles from central London, Fontwell sits well inside the area we cover. A survey and a fixed quote come first, then the visit at a time that suits you.
Healthcare ventilation, from large hospitals like Arundel and District Hospital (about 3.7 miles east) to small clinics, depends on clean filters, coils and ducts.
Fontwell is about 5 miles north of Bognor Regis, in West Sussex. If you need AHU cleaning in Fontwell, please ring 0345 646 2711 or send us an email for a fixed quote. We work across South East England and London, including Fontwell. Fontwell is one of 371 towns, villages and districts in West Sussex where we work for AHU cleaning. We also work in Portsmouth, about 19 miles from Fontwell.
We cover every part of the BN18 and PO20 postcode area for AHU cleaning and the roads nearby. If you need AHU cleaning at premises on London Road, Cooke Road and Steeplechase Way or anywhere close by, we can help. We also cover Eastergate (1 mile south), Slindon (1 mile north-east), Nyton (1 mile south-west), West Barnham (1 mile south) and Slindon Common (1 mile east). Within a short drive, we also cover Worthing (11 miles east), Bognor Regis (5 miles south), Chichester (6 miles west), Selsey (10 miles south-west), Littlehampton (6 miles south-east) and Lancing (14 miles east).
Landmarks near Fontwell
Typical jobs here are in premises near Eastergate CofE Primary School. The closest station to Fontwell is Barnham station, about 1.6 miles south. Other landmarks nearby include Tote Copse Castle (2.2 miles south-west) and Arundel and District Hospital (3.7 miles east). Green spaces nearby include Bignor Hill and WWT Arundel.
When to call us in Fontwell
Dirt in an AHU matters in two ways: air quality, since the unit feeds occupied rooms, and performance, since dirt makes it strain. For the people using the building every day, that’s the air they breathe for hours on end.
Signs it’s time to call us include:
- Dust built up on fan impellers
- Leaves and litter drawn into the unit
- Dirty coils holding back the airflow
- Drain trays holding standing water
School buildings such as Ormiston Six Villages Academy are typically done in the holidays, so classrooms aren’t disturbed.
What to look for in a quote
- Whether the price is fixed
- Whether the quote is based on a survey or photos
- What’s included in the scope, part by part
- Whether the quote shows VAT
What happens if it’s left?
Standing water in a drain tray does not clear itself. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Clearing it now is a much smaller job. Rural sites cannot always move to another kitchen or room when something fails.
Several systems or sites on one quote can make for a more efficient booking. Mention every system or site you need covered, and you will get one fixed quote.
Why choose Duct Doctor in Fontwell
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- A single point of contact for sites across the South East and London
- Accredited under CHAS and SafeContractor, with ISO 9001
- In business since 2009
Read how cleaning jobs are priced and how to check a contractor.
In-house cleaning or a specialist?
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, which is where we come in.
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you can’t see still need a specialist at the right interval.
Also near Fontwell
What else we do in Fontwell
What AHU cleaning cannot fix
We won’t sell you work that does not address the problem, so these are the things it will not cover:
- Leaking heating or cooling coils
- Problems with the unit’s controls or sensors
- A system that is undersized for the building
Not sure which it is? You can call 0345 646 2711, or email photos and we’ll tell you honestly.
What we work on in Fontwell
- Heating and cooling coils
- Filter sections
- Supply and extract fans
- Drain trays
- Dampers and louvres
- Internal panels
Questions from Fontwell
Can a school’s ventilation in Fontwell be done out of term time?
Yes. The holidays are the usual time for school work. There are about 8 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Fontwell. Send us your term dates when you phone us on 0345 646 2711, or email photos, and we’ll fit the work in.
Will you come out to Fontwell?
Yes, we work in villages as well as towns, and Fontwell is covered. The journey is planned ahead, so a few details about the route help.
Do you work with multi-site operators?
Yes. Send the list of sites and the work at each and we’ll quote them together.
Can you come out in an emergency?
Yes. There’s a 24/7 emergency line for anything that can’t wait until a planned visit. Ring any time and tell us what’s happened.
What do you do to protect the area?
Floors and surfaces near the work are sheeted before any work starts, and anything we remove is contained. Before we leave, we tidy up and clean down.
What do you do with what you remove?
Anything we remove is contained as we work and taken away with us, including grease, debris and dirty water. None of it is left on site.
Will the ventilation be off while you clean?
Yes. The unit has to be shut down and isolated before it’s opened. We agree the timing with your site team.
Do you give a certificate after the clean?
Yes. A TR19® certificate and photo report are sent after the clean, including anything we think needs attention.