West Sussex · Air handling unit cleaning
Lagness AHU cleaning
Specialist AHU cleaning for Lagness: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- Dirty filters cutting the airflow
- Plant that needs cleaning after a refit
- Drain trays holding standing water
How it works
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Equipment that has to be off is switched off and allowed to cool before work begins, and the area around the work is covered and protected. On site, it takes one overnight shift for many single units, with bigger plant phased. The timing of a visit to Lagness is set by you, and the travel is our side of the planning.
- We start with a survey of the unit and a fixed quote for the work.
- We arrange the shutdown with your staff and sheet the area.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Standing water and slime come out of the tray and the drain is checked.
- A TR19® certificate and photo report follow the clean.
Getting ready for the visit
- Find the previous report, if there is one
- Clear loose items from the work area
- Allow time for equipment near the work to be turned off and cool down
Get a fixed quote
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, you get a fixed price before any work starts.
Related advice
AHU cleaning for kitchens and businesses in Lagness
If the units serving a building in Lagness have only had filter changes for years, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full AHU clean takes in the whole unit. Typical jobs include filters that are clogged or overdue and condensate trays that won’t empty, across heating and cooling coils, dampers and louvres and internal panels.
In a village or hamlet like Lagness, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
We’ve been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
- Location
- Lagness (PO20)
- Wider area
- West Sussex
- Reporting
- Photo report after every visit
- Quotes
- Fixed quote, normally within a working day
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
Places near Lagness
Other services in Lagness
Lagness buildings and their air
At about 56 miles from central London, Lagness sits well inside the area we cover. A survey and a fixed quote come first, then the visit at a time that suits you. Bognor Regis War Memorial Hospital is the nearest hospital, about 2.4 miles east of Lagness. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
Hospitals such as Bognor Regis War Memorial Hospital (about 2.4 miles east) show how much a building can rely on clean ventilation, and smaller healthcare sites near Lagness are no different.
Lagness is about 2 miles west of Bognor Regis, in West Sussex. If you need AHU cleaning in Lagness, it’s easy to get a fixed quote: please ring 0345 646 2711 or email us. We work across South East England and London, Lagness included. Lagness is one of 371 towns, villages and districts in West Sussex where we work for commercial clients. Portsmouth is in our area too, around 15 miles away.
We work across the PO20 postcode area for AHU cleaning and the roads nearby. We also cover Runcton (1 mile north-west), Merston (1 mile north), North Mundham (2 miles north-west), Colworth (2 miles north-east) and Hunston (2 miles west). Further out, we also cover Worthing (14 miles east), Chichester (4 miles north-west), Selsey (5 miles south-west), Littlehampton (9 miles east), Emsworth (10 miles west) and Rustington (10 miles east).
Around Lagness
Typical jobs here are in premises near The Regis School and Avisford and the streets around them. The nearest railway station is Bognor Regis station, roughly 2.5 miles east of the centre. Other landmarks nearby include Tote Copse Castle (2.9 miles north-east) and Bognor Regis Museum (2.5 miles south-east).
Why it’s worth doing now in Lagness
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. Planning a trip to Lagness ahead is easier for everyone than a rushed one.
Combining work into one visit or one programme often makes better use of the time. Tell us about everything you’d like looked at and we’ll price it together.
What you get with us
- We’re fully insured
- CHAS, SafeContractor and ISO 9001
- Ventilation hygiene specialists since 2009
- Survey first, then a fixed quote
See what affects the cost or our accreditations and certificates.
When something else is needed
Some problems need a different service or another trade:
- Breakdowns that need a mechanical engineer
- A system that is undersized for the building
- The supply and extract ducts, quoted separately
Not sure which it is? You can call 0345 646 2711, or email photos and we will tell you honestly.
What the work covers
- Supply and extract fans
- Filter sections
- Heating and cooling coils
- Drain trays
- Internal panels
- Dampers and louvres
Different parts, different methods
Internal casing and panels
Access doors and panels are opened in turn and closed properly afterwards, and check every one is shut.
Filters
What’s on the filters is a good clue to what’s further in. They’re photographed before and after for your records.
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 will not come clean, they should report it rather than try to fix it. We will take a look and give you a fixed quote.
Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, alongside our reports.
Common problems we fix in Lagness
Wherever there’s a cooling coil, there’s condensate. If the drain tray outlet blocks or the tray doesn’t fall properly, water stands in it, and that’s where slime and odours start.
What we are most often called out for:
- Rooms that smell stuffy when the system runs
- Plant that has been serviced but not cleaned
- Intake sections clogged with outdoor debris
- Plant that needs cleaning after a refit
Wherever a school like Rose Green Junior School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Questions to ask before you book
- Whether they’re fully insured
- What’s included in the scope, part by part
- If they look at the system before pricing
- What hours they’ll be on site
Common questions in Lagness
Can the work in Lagness be done at night or at weekends?
Yes, evening, overnight and weekend work is normal for us. Your customers, staff or residents in Lagness needn’t be disturbed. Tell us your opening hours when you ask for a quote.
Do you clean school ventilation in Lagness in the holidays?
Yes, and it’s the easiest time to do it. With about 2 schools and colleges on the FSA’s register within roughly a mile and a half of Lagness, it pays to plan holiday dates ahead. Tell us your holiday dates and we will book the visit for when the site is empty.
What does AHU cleaning cost?
Every site is different, so each gets its own fixed quote. For a quote, call us on 0345 646 2711 or email us with the site type, opening hours and a few pictures.
What do you clean inside the unit?
The main parts are the filters, coils, drain tray, fan and inside of the casing. The survey confirms what’s in your unit before we quote.
Does the AHU have to be shut down for cleaning?
Yes. The fan must be stopped and the unit isolated, so we plan it for a time that suits the building.
Will you repair the fan or motor?
Motors, belts, controls and coils that need repair are a job for your maintenance contractor. We clean the unit and report anything we see that needs attention.
How often should an air handling unit be cleaned?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. We recommend a next date in each report.
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.
Looking after it afterwards
Results last longer with the right care. Here’s what we suggest:
- Watch for drips or damp patches near the plant
- Store the TR19 paperwork where auditors can find it
- Report musty smells from the vents right away
- Check the drain tray is emptying during routine visits
Keep filter changes on schedule between cleans, because good filters protect everything downstream. Log every change so it’s easy to see when the next is due.
Make sure access doors and panels on the unit open easily. Sections that are awkward to open are the ones that get skipped.