Southampton · Air handling unit cleaning
Rownhams AHU cleaning
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for commercial sites in Rownhams and across Southampton. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Fan sections that haven’t been cleaned in years
- Coils clogged with dust and debris
- Odours coming through the supply air
Different parts, different methods
Heating and cooling coils
Cooling coils stay damp in use, so dirt on them can turn sticky. We clean the coil and the tray beneath it together.
Drain trays
The drain tray collects water from the cooling coil. We clear standing water, clean out slime and check the outlet is draining.
About our AHU cleaning in Rownhams
Every supply and extract system relies on the air handling unit at its centre: air is pulled in, filtered, conditioned and sent out through the ducts. Whatever builds up inside it travels with that air, so cleaning the unit matters as much as cleaning the ducts. Common call-outs are for dirty filters cutting the airflow and stale or musty smells from the ventilation, on supply and extract fans, internal panels and heating and cooling coils.
In a place like Rownhams, air handling units are often tucked into roof spaces or small plant rooms, where they’re easy to forget. Filters, coils and drain trays need attention whatever the size of the unit.
The paperwork matters as much as the work. You get a written report with photos after every visit, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s to hand when an insurer or inspector asks.
- Location
- Rownhams (SO16)
- Wider area
- Southampton
- Paperwork
- Photo report after every visit
- Price
- Fixed quote, typically within a working day
- Hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
More services for Rownhams
What your team can do, and what needs us
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, and that is where we come in.
When to call us in Rownhams
Whatever surrounds a building in Rownhams, the air drawn into its AHU carries dust, pollen and debris. The intake section and first filters take the brunt, and some travels further into the unit.
Look out for these warning signs:
- Stale or musty smells from the ventilation
- Intake sections clogged with outdoor debris
- Drain trays holding standing water
- Coils clogged with dust and debris
Healthcare buildings such as Princess Anne Hospital, about 1.3 miles south-east, depend on their ventilation; if you manage a surgery, clinic or care home near Rownhams, yours matters too.
Comparing quotes
- What records you’ll receive afterwards
- Whether they’re fully insured
- Whether the figure could change on the day
- Whether inaccessible sections are listed on the report
AHU cleaning in Rownhams: local notes
Food Standards Agency records list about 13 schools, colleges and universities and about 22 caring premises (care homes, nurseries and hospitals) registered as food businesses within roughly a mile and a half of the centre of Rownhams. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. The nearest hospital to Rownhams is Princess Anne Hospital, about 1.3 miles south-east. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
For schools like Rownhams St John's Church of England Primary School, the holidays are the usual time to inspect and clean ventilation.
Rownhams is about 3 miles north-east of Totton, in Southampton. We carry out AHU cleaning for commercial premises of every kind in Rownhams and the rest of Southampton. Our area takes in 40 places across Southampton, large and small.
Every address in SO16 is within our area for AHU cleaning, from the main roads to the quietest streets. Local streets include Rownhams Way, Horns Drove and Rownhams Close, all of which we cover for AHU cleaning. Nearby, we also carry out AHU cleaning in Upton (1 mile west), Nursling (1 mile south-west), Hillyfields (1 mile south-west), Lordswood (1 mile south-east) and Toothill (1 mile north-west). We also work in nearby towns such as Southampton (3 miles south-east), Townhill Park (4 miles east), Midanbury (4 miles east), Thornhill (6 miles south-east), Chartwell Green (5 miles east) and Harefield (5 miles south-east).
Landmarks near Rownhams
We work in commercial kitchens and buildings around Oaklands Community School, St James' Park and Oasis Academy Lord's Hill, among other places. The closest station to Rownhams is Redbridge station, about 2.1 miles south. Nearby you will also find Princess Anne Hospital (1.3 miles south-east) and Eling Experience (2.4 miles south-west). The countryside around Rownhams includes Testwood Lakes.
For landlords and multi-site operators
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.
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.
What happens on the day
The first job on site is protection: sheeting goes over floors and surfaces close to the work. After that, the system is made safe and the work begins. It takes from a few hours for a compact unit to a day or more for a large one, and we clear up before we go. Tell us about any gates, ladders or locked plant areas at your site near Rownhams when you book.
- We start with a survey of the unit and a fixed quote for the work.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- Standing water and slime come out of the tray and the drain is checked.
- We close up the unit and send the certificate and before and after photos.
Before we arrive
- Tell us the best time to work, such as after service or at a weekend
- Let us know how we reach the system, including roofs, risers and plant rooms
- Arrange a key holder or contact on site
Ask for a quote
Every quote begins with a look at the system, from your photos and details or, where that is not enough, a survey on site. After that, you get a fixed price for the work, before we start.
Advice
Rownhams: your questions answered
Do you do school ventilation cleaning in Rownhams in the summer holidays?
Yes, holiday work suits schools best. Food Standards Agency records list about 13 schools, colleges and universities with registered kitchens within about a mile and a half of Rownhams. Tell us your holiday dates and we will book the visit for when the site is empty.
Do you work in villages like Rownhams?
Yes, smaller places are covered as well as towns. The journey is planned ahead, so a few details about the route help.
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.
Which sectors do you work in?
All kinds of commercial and public premises: kitchens, offices, schools, healthcare, retail, leisure and food production. We fit the work around how the site operates.
How much notice should we give?
For planned work, earlier is better, especially if the next clean or test is due soon. For emergencies, we take calls 24/7.
What accreditations do you have?
We hold CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.
Do you offer emergency callouts?
Yes, any time. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line, and we’ll advise on what to do next.
Do you need to switch the unit off?
Yes. Cleaning needs the unit off and isolated, and we time the work to suit the site.
Fixed quotes for AHU cleaning in Rownhams
The price is fixed before any work begins. It’s based on:
- Whether several sites go on one quote
- Travel, parking and unloading
- The condition of the system
- A single visit or a regular plan
Every site is different, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
Asking for a quote
We can often survey from photos. Try to include:
- Any previous report or certificate
- Close-ups of filters, grilles, hatches or access panels
- Problems your staff have spotted
- Photos showing the whole system and its surroundings
Photos are the quickest way to a quote: 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.
Between visits
Think of this as the after-treatment advice, in brief:
- Report musty smells from the vents straight away
- Change filters on schedule and log each change
- File each AHU report in the maintenance log
- Check the drain tray is emptying during routine visits
We recommend when the unit should next be inspected or cleaned, based on what we found. Under TR19® Air the timing is set by inspection and risk, not a fixed calendar.
Check drain trays and condensate drains during routine maintenance. A drain that is cleared early never gets to the slime stage.