Brighton and Hove · Air handling unit cleaning
AHU Cleaning in Falmer
Air handling unit cleaning for businesses, landlords and public buildings in Falmer. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Plant that needs cleaning after a refit
- Filters that are clogged or overdue
- Odours coming through the supply air
Between visits
Results last longer with the right care. We suggest:
- Stick to the filter change plan
- Check the drain tray is emptying during routine visits
- Report water on the plant room floor
- Don’t store bins or materials near the intake
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.
Don’t let leaves, litter or stored materials build up near the fresh air intake. What’s near the intake ends up in the unit.
AHU cleaning in Falmer, done properly
The fan pushes every bit of air in the system, so dirt on the impeller and housing gets spread around. 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 drain trays, internal panels and filter sections, and common reasons people get in touch are intake sections clogged with outdoor debris and units that have only ever had filter changes.
For a building in or near Falmer, access is agreed in advance and the visit is planned around the journey.
For insurers and inspectors, the record counts. That’s why every job is written up in a report with pictures, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.

- Location
- Falmer (BN1)
- Region
- Brighton and Hove
- Records
- Written report with pictures
- Quote
- A fixed price before any work starts
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Do you need AHU cleaning in Falmer?
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 is the air they breathe for hours on end.
Common reasons sites call us are:
- Dirty filters cutting the airflow
- Stale or musty smells from the ventilation
- Dust-coated heating and cooling coils
- Air handling units never cleaned inside
School buildings such as Brighton Aldridge Community Academy are usually done in the holidays, so classrooms are not disturbed.
Comparing quotes
- If the quote is a fixed price or an estimate
- How areas they can’t reach will be recorded
- Whether VAT is included
- Exactly which parts of the system are covered
Multi-site and managed buildings
When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We’re happy to deal with either side and send the paperwork to whoever needs it.
If you look after several sites, we can plan visits across the whole estate and price them together. Every building has its own written report, so records stay tidy.
Fixed quotes for AHU cleaning in Falmer
Your quote is based on your site. We consider:
- The size of the system
- How easy every part is to reach
- Any permits to work or inductions
- How many systems or sites are involved
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. The price is fixed before work begins.
What to send for a quote
A few details help us quote accurately. With your enquiry, please include:
- When the site is open and when it’s quiet
- Any symptoms, from odd noises to smells or leaks
- How we’d reach plant on a roof or in a plant room
- Detail shots of panels, filters and grilles
For a fixed quote, ring 0345 646 2711 or send us an email with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. We typically come back within one working day.
AHU cleaning in Falmer: local notes
Falmer’s nearest hospital, Brighton General Hospital, is about 2.8 miles south-west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. At about 44 miles from central London, Falmer sits well inside the area we cover. The visit is fixed around your opening hours, not ours.
Brighton General Hospital, about 2.8 miles south-west, is the nearest hospital to Falmer, and healthcare sites of every size need their supply air kept clean. For workplaces around Falmer station with mechanical ventilation, cleaning can be done in the evening or at weekends.
Falmer is about 3 miles north-east of Brighton, in Brighton and Hove. We provide AHU cleaning for commercial premises of every kind in Falmer and the rest of Brighton and Hove. We cover 30 places across Brighton and Hove, large and small.
AHU cleaning in BN1 follows the same survey, fixed quote and written report as everywhere else we cover. You’ll find streets such as Middle Street, Park Street and Mill Street, and we cover them all for AHU cleaning. Neighbouring places we cover for AHU cleaning include Kingston near Lewes (2 miles east), Iford (3 miles east), Ovingdean (3 miles south), Rottingdean (3 miles south) and Roedean (3 miles south). We also work in nearby towns such as Brighton (3 miles south-west), Brighton and Hove (5 miles west), Hove (5 miles south-west), Carlton Hill (4 miles south-west), Hanover (3 miles south-west) and West Hill (4 miles south-west).
Landmarks near Falmer
Locally, jobs take us to businesses close to The Swan Inn, University of Sussex Library and Stanmer Park, among other places. There’s a railway station in Falmer itself: Falmer station. Nearby you’ll also find Brighton And Hove Albion Football Club Museum (within half a mile south-west) and Lewes Castle (3.8 miles east). The countryside around Falmer includes Bevendean Down and Newmarket Hill.
What happens if it’s left?
Dirty coils and fans make the unit strain to move the same air. That means more wear on the motor and rooms that feel less fresh, and a clean on your terms beats a breakdown on nobody’s. Systems in rural buildings are often out of sight and out of mind.
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you are unsure, give us a ring on 0345 646 2711 or use the quote form and we will give you an honest view and a fixed quote.
Why choose Duct Doctor in Falmer
- Out-of-hours work and a 24/7 emergency line
- Fixed quotes from a survey or pictures
- CHAS and SafeContractor accredited, with ISO 9001
- One number for every site across the South East and London
Read what affects the cost or our accreditations.
Common questions in Falmer
Can you come to Falmer after we close?
Yes, evening, overnight and weekend work is normal for us. The site is handed back ready to open. Just give us a ring on 0345 646 2711 or drop us a line with your opening times and we will plan around them.
Can you get to a site in Falmer?
Yes. Falmer 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 have insurance?
Yes. Full insurance covers our work, and we’ve been trading since 2009.
How often should an air handling unit be cleaned?
It depends on the unit, the filters and how the building is used. Regular inspection shows when it’s due, and we will suggest an interval after the first clean.
Do you offer maintenance contracts?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, to suit the system and how it’s used.
What accreditations do you have?
We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
What if parts of the system can’t be reached?
We never leave them off the paperwork. You will know exactly which parts weren’t reached and why, and we can quote to improve the access.
What should I send you?
The site address, the type of premises and your opening hours, plus pictures of the system and your last certificate or report if you have one.
Staff cleaning versus specialist work
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, it’s best reported rather than tackled in-house. We’ll take a look and send you a fixed quote.
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
How it works
Each visit runs to the same pattern: protect the area, isolate whatever needs isolating, carry out the AHU cleaning, tidy up and hand over the paperwork. On site, the work takes half a day to a full day per unit, with large plant planned over several shifts. Rural roads and tight entrances are worth telling us about before a visit to Falmer.
- We agree a shutdown window that suits the building.
- We take before pictures of each section of the unit.
- We work through the unit from the intake to the outlet.
- The fan and drain tray are cleaned and the drain checked.
- We take after pictures and issue the certificate and report.
Before we arrive
- Move anything stored near the system
- Plan for cooking equipment or plant to be off before we arrive
- Find the previous report, if there is one
Get a fixed quote
The quickest way to a quote is to send pictures: 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 we can price many jobs without a visit.