West Sussex · Air handling unit cleaning
Air handling unit cleaning in Portslade, West Sussex
AHU cleaning for Portslade and the surrounding area: diagnosis first, then a fixed quote, the work and a report with pictures. Call for a fixed quote.
- Dirty fans and fan housings
- Air handling units never cleaned inside
- Leaves and litter drawn into the unit
In-house cleaning or a specialist?
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but the parts you can’t see still need a specialist at the right interval.
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. That’s our job.
About our AHU cleaning in Portslade
Our AHU cleaning covers sites in Portslade and the rest of West Sussex, in offices, schools, hospitals, care homes and retail. Units are cleaned when the site can spare them, often evenings, overnight or weekends. Common call-outs are for dirty fans and fan housings and air handling units never cleaned inside, on filter sections, drain trays and heating and cooling coils.
For a building near Portslade, the visit is planned around how it’s used, and the journey is planned ahead. The method does not change: inspect first, clean, then record what was done.
It’s worth checking any contractor’s accreditations. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Place
- Portslade (BN41, BN3, BN42)
- Wider area
- West Sussex
- Paperwork
- Report and pictures after the visit
- Quotes
- A fixed quote up front
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
The process
Night work is normal for us. Evenings, nights and weekends are when much of our work happens, so the site can open as normal afterwards. On site, the work takes from a few hours for a compact unit to a day or more for a large one. Getting to the system matters more than parking in a place like Portslade, so let us know how to reach it.
- 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.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
How to prepare
- Arrange a key holder or contact on site
- Clear loose items from the work area
- Make sure equipment near the work can be switched off and left to cool
Get a fixed quote
Need a price for AHU cleaning? Please call 0345 646 2711, or email photos and tell us about the site. We will explain what we’d do and send a fixed quote before you commit to anything.
Advice
Landlords, agents and facilities managers
Records are where multi-site compliance often slips. Each visit produces a dated report with pictures, ready to show insurers, fire officers or EHOs.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.
Also near Portslade
Also in Portslade
FAQs for Portslade
Can a school’s ventilation in Portslade be done out of term time?
Yes, out-of-term visits are normal for schools. Around Portslade, the Food Standards Agency lists about 32 schools and colleges with registered kitchens within a mile and a half or so. Just give us a ring on 0345 646 2711, or send details by email with your term dates and we’ll plan around them.
Do you cover smaller places like Portslade?
Yes, we work in villages as well as towns, and Portslade is covered. A survey first, from photos or a visit, means we arrive with the right kit.
How long does an AHU clean take?
It takes anything from half a day for one small unit to several shifts for a plant room full of them. The unit’s size and condition make the biggest difference, and we’ll confirm the time when we quote.
Will the ventilation be off while you clean?
Yes. Cleaning needs the unit off and isolated, so we plan it for a time that suits the building.
Are you fully insured?
Yes. Duct Doctor is fully insured, and we can share the details when you need them.
Do you give a certificate after the clean?
Yes. You get a TR19® certificate plus before and after photos. Keep them in the maintenance log.
What do you do to protect the area?
Floors and surfaces near the work are sheeted before any work starts, and waste is contained as we go. Before we leave, we tidy up and clean down.
When should our AHU next be cleaned?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. Each report suggests when the unit should next be looked at.
Ventilation in Portslade buildings
Food Standards Agency records list about 32 schools, colleges and universities and about 36 caring premises (care homes, nurseries and hospitals) registered as food businesses across Portslade and its immediate surroundings (about a mile and a half). Buildings like these often rely on mechanical ventilation, which TR19® Air covers. About 46 miles out from central London, Portslade is part of the South East area we work across. Visits are booked around your hours, evenings and weekends included. Portslade’s nearest hospital, Southlands Hospital, is about 1.8 miles west. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
Healthcare buildings such as Southlands Hospital, about 1.8 miles west, depend on their ventilation; if you manage a surgery, clinic or care home near Portslade, yours matters too. School buildings such as Peter Gladwin Primary School are typically done in the holidays, so classrooms are not disturbed. For workplaces around Fishersgate station with mechanical ventilation, cleaning can be done in the evening or at weekends.
Portslade is about 1 mile west of Brighton and Hove, in West Sussex. Whatever kind of site you run in Portslade, AHU cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Across West Sussex, we cover 371 places, Portslade among them.
Postcode districts we cover here for AHU cleaning: BN41, BN3 and BN42. That includes premises on Mill Lane, Crown Road and Drove Road and the roads around them. Portslade sits on or near the A293, which makes travel easy for evening and night visits. Other places close to Portslade include Hangleton (1 mile north-east), Southwick (1 mile south-west), Kingston by Sea (1 mile west), Shoreham-by-Sea (2 miles west) and Old Shoreham (3 miles west). We also work in nearby towns such as Worthing (8 miles west), Haywards Heath (12 miles north-east), Burgess Hill (9 miles north-east), Littlehampton (14 miles west), Lancing (5 miles west) and Rustington (13 miles west).
Around Portslade
We work in commercial kitchens and buildings around King's School, Benfield Hill and The Mill House, among other places. For rail, the closest station is Fishersgate station, roughly 0.7 miles south. Nearby you’ll also find British Engineerium (1.8 miles east) and Southlands Hospital (1.8 miles west). Green spaces nearby include Shoreham Beach and Thundersbarrow Hill.
Why act early in Portslade
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 planned clean is far less disruptive than a breakdown. Around Portslade, a kitchen or building out of action is missed straight away.
Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you’re not sure what’s needed, call us on 0345 646 2711, or send details by email and we will give you an honest view and a fixed quote.
Why Portslade businesses choose us
- Evenings, overnight and weekends, plus 24/7 emergency callout
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Fixed quotes, normally within one working day
- One number for every site across the South East and London
How the job changes from site to site
Fans and fan sections
The fan moves all of the unit’s air, so dirt on it gets spread around. The impeller, its housing and the fan chamber are cleaned.
Internal casing and panels
Access doors and panels are opened in turn and closed properly afterwards before the unit is handed back.
Honest limits
Not every problem is solved by AHU cleaning, and we will tell you before we start. It does not solve:
- The supply and extract ducts, quoted separately
- Faulty motors, drives or bearings
- Controls and BMS settings that run the unit
If you’re not sure, just phone us on 0345 646 2711 or drop us a line and we will give you a straight answer.
Where we work
- Dampers and louvres
- Supply and extract fans
- Drain trays
- Heating and cooling coils
- Internal panels
- Filter sections
Keeping the system healthy
Simple habits between visits make a real difference. We recommend:
- File each AHU report in the maintenance log
- Stick to the filter change plan
- Don’t ignore odours coming through the grilles
- Book the next check in line with the report
The report shows each section of the unit before and after, and note any part we couldn’t get to. It also notes faults we spotted, such as damaged panels or a blocked drain.
Check drain trays and condensate drains during routine maintenance. A drain that is cleared early never gets to the slime stage.