West Sussex · Air handling unit cleaning
Lidsey AHU cleaning
We cover Lidsey for air handling unit cleaning. Out-of-hours visits, a fixed quote and a written report with photos as standard.
- Dust-coated heating and cooling coils
- Intake sections clogged with outdoor debris
- Plant that needs cleaning after a refit
Questions from Lidsey
Can you work in Lidsey outside opening hours?
Yes, we can come after you close and finish before you open. The work in Lidsey can fit around your hours. When you call 0345 646 2711 or drop us a line, mention when the site is quiet.
Can you get to a site in Lidsey?
Yes. Villages and rural sites across the South East are part of our work, Lidsey included. Photos of the system and directions to the site help us plan the visit.
Do you give a certificate after the clean?
Yes, both a certificate and a report with photos. It includes a recommended date for the next check.
How far ahead should we book?
Book as early as you can for planned work, especially if the next clean or test is due soon. Emergencies are different, because our line is open 24/7.
Can one contract cover all our sites?
Yes. Our area covers London and the South East, so we can schedule a run of sites as one programme. Each site gets its own report and pictures.
How long will the unit be out of action?
Cleaning takes a single shift for a typical unit, longer for large or heavily soiled ones. Bigger units can be phased, and you can call us on 0345 646 2711 or drop us a line to plan it.
Can you clean the ducts connected to the AHU?
Yes. We clean supply and extract ductwork to TR19® Air as well. It’s often worth doing both at once, and we can survey both on the same visit.
Which parts of an air handling unit do you clean?
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.
About our AHU cleaning in Lidsey
Coils are where a lot of the dirt ends up. Dirt on the fins holds back air and makes the unit work harder to do the same job. We clean coils with methods suited to their condition, taking care not to damage the fins. The work covers dampers and louvres, heating and cooling coils and drain trays, and people most often call us about stale or musty smells from the ventilation and coils clogged with dust and debris.
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 have been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Where
- Lidsey (PO22)
- Wider area
- West Sussex
- Reporting
- Report and pictures after the visit
- Price
- A fixed quote up front
- Hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
Staff cleaning versus specialist work
Keep a record of what your team does. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, alongside our reports.
A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. Leave those to us.
How the job changes from site to site
Fans and fan sections
Every bit of air passes the fan, so a dirty fan sends dirt downstream. We clean the impeller, housing and surrounding section.
Rooftop and plant room units
Units outside are exposed to weather and windblown debris. We clean the intake and first stage of filters along with the rest.
Do you need AHU cleaning in Lidsey?
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. Most of it lands at the intake and the first stage of filters, and some travels further into the unit.
Keep an eye out for any of the following:
- Units needing a clean before a new tenant or handover
- Dirty fans and fan housings
- Leaves and litter drawn into the unit
- Air handling units with blocked filters
Wherever a school like Aldingbourne Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Comparing quotes
- What’s included in the scope, part by part
- If the quote is a fixed price or an estimate
- Whether the quote is based on a survey or pictures
- What hours they’ll be on site
Places near Lidsey
Also in Lidsey
Landlords, agents and facilities managers
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 each one has its own record.
Running several sites is easier with one contractor. We cover South East England and London, so a run of sites can go into one programme and kept to a regular schedule.
What AHU cleaning looks like in Lidsey
Food Standards Agency records list about 11 schools, colleges and universities and about 3 hospitals, care homes and childcare premises registered as food businesses across Lidsey and its immediate surroundings (about a mile and a half). Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Lidsey is about 53 miles from central London, well within the area we cover across London and the South East. We work evenings, overnight and at weekends, so the visit fits around the site. Lidsey’s nearest hospital, Bognor Regis War Memorial Hospital, is about 1.9 miles south. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
Hospitals such as Bognor Regis War Memorial Hospital (about 1.9 miles south) show how much a building can rely on clean ventilation, and smaller healthcare sites near Lidsey are no different.
Lidsey is about 2 miles north-east of Bognor Regis, in West Sussex. We provide AHU cleaning for businesses, landlords and public buildings in Lidsey and the rest of West Sussex. Our West Sussex coverage runs to 371 places, and Lidsey is one of them. There’s also a page for Portsmouth, roughly 18 miles from Lidsey.
All of PO22 is within our area for AHU cleaning, from busy streets to back roads. That includes premises on Lidsey Road and Sack Lane and the roads around them. Neighbouring places we cover for AHU cleaning include Shripney (1 mile south-west), Westergate (1 mile north), Eastergate (1 mile north), West Barnham (1 mile north-east) and Barnham (1 mile north-east). Within a short drive, we also cover Worthing (12 miles east), Chichester (5 miles west), Selsey (8 miles south-west), Littlehampton (6 miles east), Lancing (15 miles east) and Emsworth (12 miles west).
Near you in Lidsey
Around Lidsey, our work takes us to kitchens and buildings near St Philip Howard Catholic High School and The Brooks Local Nature Reserve and the streets around them. Lidsey’s nearest station is Barnham station, roughly 1.3 miles north-east. Nearby you will also find Tote Copse Castle (1.6 miles north-west) and Bognor Regis Museum (2.6 miles south).
How the visit works
A visit follows the same order every time: protect the area, isolate whatever needs isolating, do the work, tidy up and leave you the report. On site, the work takes a single shift for a typical unit, longer for large or heavily soiled ones. The timing of a visit to Lidsey is set by you, and the travel is our side of the planning.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- After photos are taken and the certificate issued.
Preparing for the visit
- Make sure equipment near the work can be switched off and left to cool
- Let us know about parking and loading
- Have your last certificate or report to hand
Get a fixed quote
The quickest way to a quote is to send photos: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
Advice
Keeping the system healthy
No system stays clean for ever, but care slows the build-up. Our tips:
- Keep filter changes on time and recorded
- Make sure condensate is draining away
- Book the next check in line with the report
- Report water on the plant room floor
Restart the unit with your site team or maintenance contractor once we have finished. Check the drain tray is emptying over the first few days to make sure it stays clear.
Regular filter changes are the best protection an AHU has. Once filters clog, dirt starts getting past them.
What happens if it’s left?
A clean unit feeds cleaner air into the ductwork, so the whole system stays cleaner for longer. It also means the next inspection has less to find. Equipment tucked in a roof space or outbuilding near Lidsey rarely gets looked at unless someone books it.
What you pay reflects the actual work. That’s why we survey first, from pictures or on site, and the price is agreed before we start.
Why book with us
- Work around your opening hours, with 24/7 emergency cover
- One number for every site across the South East and London
- Accredited under CHAS and SafeContractor, with ISO 9001
- In business since 2009