West Sussex · Air handling unit cleaning
Air handling unit cleaning in Rudgwick, West Sussex
AHU cleaning in Rudgwick from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Air handling units with blocked filters
- Air handling units due a clean after building work
- Fan sections that haven’t been cleaned in years
AHU cleaning in Rudgwick, done properly
Think of an AHU clean as a full check-up for the ventilation. We look inside each section, clean what we find and record it with pictures, so you can see the unit’s condition for yourself. Typical jobs include air handling units due a clean after building work and air handling units never cleaned inside, across dampers and louvres, internal panels and filter sections.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, where filters and drain trays get forgotten.
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’ve been trading since 2009.

- Where
- Rudgwick (RH12)
- Wider area
- West Sussex
- Reporting
- Photo report after every visit
- Quotes
- A fixed quote up front
- Hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
What happens on the day
There’s very little for your team to do on the day. A contact on site lets us in at the agreed time and points us to the system, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. If the van will struggle with a lane or gateway near Rudgwick, let us know and we will plan around it.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Dirt and debris are removed from each section.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Before we arrive
- Agree a time when the area can be out of use
- Make sure equipment near the work can be switched off and left to cool
- Find the previous report, if there is one
Getting a quote
Some systems can be priced from pictures; others need a survey. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, the quote is fixed before any work is booked.
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Nearby places to Rudgwick
Other services in Rudgwick
Fixed quotes for AHU cleaning in Rudgwick
The quote reflects the site in front of us. We take into account:
- How big the system is
- When the work can happen, such as evenings, overnight or weekends
- Whether we need access equipment or extra panels
- The condition we find in the survey
What you pay reflects the actual work. That is why every job is surveyed first, and why the quote is fixed before any work starts.
What to send for a quote
Many jobs can be priced from pictures and some basics. Useful things to send:
- The roof, plant room or outside wall the system runs to
- Your opening hours and when the area is out of use
- Close-ups of filters, grilles, hatches or access panels
- A few general shots of the system
Quotes are quick. Send a few details and pictures, and we usually reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
What happens if it’s left?
A slimy drain tray only gets worse. Leave it and you risk overflows, leaks into the space below and odours carried round the building. Clearing it now is a much smaller job. Rural sites cannot always move to another kitchen or room when something fails.
One small site or a whole estate, the quote is built the same way: the work involved, the access and the timing. You’ll have a fixed price before work begins.
Why choose Duct Doctor in Rudgwick
- Fixed quotes from a survey or pictures
- In business since 2009
- Every visit written up, with pictures
- Accredited under CHAS and SafeContractor, with ISO 9001
Take a look at how cleaning jobs are priced and our accreditations.
Ventilation in Rudgwick buildings
About 32 miles out from central London, Rudgwick is part of the South East area we work across. Evening, overnight and weekend visits are all possible. Horsham Hospital is the nearest hospital, about 5.6 miles east of Rudgwick. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
Classrooms and halls at schools such as Rudgwick Primary School are easiest to work in when pupils are away. Healthcare buildings such as Horsham Hospital, about 5.6 miles east, depend on their ventilation; if you manage a surgery, clinic or care home near Rudgwick, yours matters too.
Rudgwick is about 6 miles west of Horsham, in West Sussex. Wherever you are in the RH12 postcode area, we can carry out AHU cleaning at your premises. Rudgwick is one of 371 places in West Sussex where we work for commercial clients. Guildford is in our area too, around 12 miles away.
AHU cleaning in RH12 is surveyed, quoted and booked the same way as anywhere else. If you need AHU cleaning at premises on Station Road, Thurne Way and Jubilee Road or anywhere close by, our technicians can take on the work. Nearby, we also carry out AHU cleaning in Bucks Green (1 mile south-west), Tisman's Common (1 mile west), The Haven (2 miles south), Slinfold (2 miles south-east) and Five Oaks (3 miles south). Within a short drive, we also cover Crawley (11 miles east), Horsham (6 miles east), Broadfield (10 miles east), Storrington (12 miles south), Billingshurst (5 miles south) and Bewbush (10 miles east).
Near you in Rudgwick
Typical jobs here are in premises near Pennthorpe School and The Queen's Head Public House, among other places. The closest station to Rudgwick is Christs Hospital station, about 4.6 miles south-east of the centre. Well-known places in the area include Horsham Hospital (5.6 miles east).
Multi-site and managed buildings
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. With shared responsibility, good records help everyone.
Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We can quote either party, and the report can go to both.
Aftercare tips
Here’s the after-treatment advice, in brief:
- Change filters on schedule and log each change
- Book the next check in line with the report
- Keep the area around the fresh air intake clear
- Keep inspection doors on the unit in good order
Stick to the filter change schedule, because good filters protect everything downstream. Record each change in the maintenance log.
Change or clean filters on time. Once filters clog, dirt starts getting past them.
When something else is needed
It’s worth knowing the limits before booking:
- Breakdowns that need a mechanical engineer
- Problems with the unit’s controls or sensors
- Dirty ducts beyond the unit itself
Not sure which it is? You can give us a ring on 0345 646 2711 or send us an email and we will tell you honestly.
Parts of the system we cover
- Filter sections
- Internal panels
- Dampers and louvres
- Drain trays
- Supply and extract fans
- Heating and cooling coils
Common questions in Rudgwick
Can you get to a site in Rudgwick?
Yes. Rudgwick is within the area we cover across London and the South East. A survey first, from photos or a visit, means we arrive with the right kit.
Do you offer AHU cleaning in Rudgwick?
Yes, we work in Rudgwick and the places around it. You can ring 0345 646 2711, or email photos and let us know what needs doing.
What is TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
What types of premises do you cover?
Any commercial site with kitchens or ventilation, from a single café to a large school. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
Do you work evenings or weekends?
Yes. The clean is planned around when the unit can be switched off. Healthcare and care settings are planned with staff.
Do you offer emergency callouts?
Yes. There’s a 24/7 emergency line for anything that can’t wait until a planned visit. Call us any time and explain what’s happened.
Which accreditations do you hold?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We are fully insured and have been trading since 2009.
Can you quote from pictures?
Normally, yes. Send wide shots, close-ups of any access panels and anything that worries you, and a fixed quote usually follows within one working day. Some sites still need a visit, and we’ll say so.
In-house cleaning or a specialist?
Staff cleaning and specialist work aren’t the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but they don’t reach the grease that builds up further in. That part needs specialist access and equipment.
Staff cleaning doesn’t replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.