Hampshire · Air handling unit cleaning
AHU Cleaning in Lower Swanwick
Looking for AHU cleaning in Lower Swanwick? We diagnose first, fix the price and book the work around your hours, finishing with a written report and photos.
- Air handling units due a clean after building work
- Air handling units with blocked filters
- Air handling units never cleaned inside
Staff cleaning versus specialist work
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they can’t safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.
AHU cleaning for kitchens and businesses in Lower Swanwick
Every supply and extract system relies on the air handling unit at its centre: it draws air in, filters it, heats or cools it and pushes it round the ductwork. Whatever builds up inside it travels with that air, which is why we clean the unit itself, not just the ducts. The work covers drain trays, dampers and louvres and supply and extract fans, and people most often call us about plant that has been serviced but not cleaned and dirty filters cutting the airflow.
Somewhere as small as Lower Swanwick, ducted ventilation is normally limited to a school, a care home, a surgery or a converted business building, wherever there is one, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
The report is your system’s health record: dated, with photos, and showing what was done. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal and sits alongside the report.
- Location
- Lower Swanwick (SO31)
- Wider area
- Hampshire
- Paperwork
- Written report with photos
- Quote
- A fixed quote up front
- When we work
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
What AHU cleaning cannot fix
AHU cleaning cannot fix everything, and we’ll tell you before any work starts. It will not put right:
- Building management system faults
- Airflow problems caused by the system’s design
- Ductwork downstream of the unit, which is a separate clean
Not sure which it is? You can ring 0345 646 2711, or send details by email and we will tell you honestly before booking.
What the work covers
- Dampers and louvres
- Internal panels
- Drain trays
- Filter sections
- Supply and extract fans
- Heating and cooling coils
Lower Swanwick: your questions answered
Can the work in Lower Swanwick be done at night or at weekends?
Yes, evening, overnight and weekend work is normal for us. The site is handed back ready to open. Your opening times are the first thing we ask for.
Can you clean school ventilation in Lower Swanwick during the holidays?
Yes. The holidays are the usual time for school work. Around Lower Swanwick, the Food Standards Agency lists about 7 schools and colleges with registered kitchens within a mile and a half or so. Tell us your holiday dates and we will book the visit for when the site is empty.
How much does AHU cleaning cost?
We do not publish prices, because the cost depends on the job: how big it is, what state it’s in, how we reach it and the working hours. You get a fixed price before any work starts.
Do you offer maintenance contracts?
Yes. We run scheduled maintenance contracts, with visits at the interval your system needs. The report from each visit recommends the next date.
How much notice should we give?
For planned work, earlier is better, especially if the next clean or test is due soon. Emergencies are different, because our line is open 24/7.
What about areas you cannot get to?
The report shows them clearly. Often the fix is extra access, such as new panels in ductwork, which we can install.
Do you give a certificate after the clean?
Yes, a TR19® certificate and a photo report. The report also suggests when the unit should next be inspected.
What should I send you?
Where the site is, what it is and when it’s open, along with a few photos and any previous report.
Common problems we fix in Lower Swanwick
An overdue filter loads up with dirt, cutting airflow and sometimes letting dirty air bypass them altogether. After that, the coils and fan collect what the filter should have caught.
Any of these means the system needs a check-up:
- Dust-coated heating and cooling coils
- Leaves and litter drawn into the unit
- Dust built up on fan impellers
- Odours coming through the supply air
If you run an office near Bursledon station, its supply ductwork can gather dust for years before anyone looks inside.
What to look for in a quote
- What’s included in the scope, part by part
- Which accreditations they hold, and whether you can check them
- What hours they’ll be on site
- Whether the figure could change on the day
Ventilation in Lower Swanwick buildings
Food Standards Agency data includes about 7 schools, colleges and universities and about 17 caring premises (care homes, nurseries and hospitals) within roughly a mile and a half of the centre of Lower Swanwick. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Lower Swanwick’s nearest hospital, Coldeast, is about 1.2 miles south-east. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Coldeast, about 1.2 miles south-east, is the nearest hospital to Lower Swanwick, and healthcare sites of every size need their supply air kept clean. If you manage a school such as Bursledon Church of England Infant School, ventilation cleaning is best booked for the holidays.
Lower Swanwick is about 2 miles west of Whiteley, in Hampshire. Across the SO31 area, we cover AHU cleaning for commercial sites. Across Hampshire, we cover 683 places, and Lower Swanwick is one of them.
Every address in SO31 is covered for AHU cleaning, from the main roads to the quietest streets. If you need AHU cleaning at premises on Green Lane, Bridge Road and Station Road or a nearby road, we can help. We also cover the places around Lower Swanwick: Swanwick (1 mile south-east), Sarisbury (1 mile south-east), Sarisbury Green (1 mile south), Park Gate (2 miles south-east) and Burridge (2 miles east). Within a short drive, we also cover Winchester (12 miles north), Gosport (8 miles south-east), Havant (14 miles east), Eastleigh (6 miles north), Fareham (5 miles south-east) and Horndean (13 miles east).
Near you in Lower Swanwick
We work in commercial kitchens and buildings around Brookfield Community School and Language College and The Old Ship Inn and the streets around them. There’s a railway station in Lower Swanwick itself: Bursledon station. A little further out are St Andrew's Castle (2.4 miles south) and Bursledon Brickworks Industrial Museum (under half a mile north-east). Not far away are Swanwick Lakes.
Keeping the system healthy
Looking after the system between visits is straightforward, and it makes the next visit easier:
- Change filters on schedule and log each change
- Clear leaves and litter away from the intake
- Do not ignore odours coming through the grilles
- Watch for drips or damp patches near the plant
Photos in the report cover the filters, coils, drain tray, fan and casing, and note any part we couldn’t get to. It also notes faults we spotted, such as damaged panels or a blocked drain.
Regular filter changes are the best protection an AHU has. Once filters clog, dirt starts getting past them.
More services for Lower Swanwick
The process
There are three stages on the day: set-up, the treatment itself and the sign-off. Set-up means sheeting and making equipment safe, while signing off means the written report and pictures. Most of the time goes on the work itself, which takes half a day to a full day per unit, with large plant planned over several shifts. A quick note on how to find the site and where to park makes a visit to Lower Swanwick run smoothly.
- We agree a shutdown window that suits the building.
- We take before photos 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.
- After pictures are taken and the certificate issued.
Getting ready for the visit
- Have your last certificate or report to hand
- Mention any sign-in, permit or induction we need
- Clear the space around the work
Ask for a 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, the quote is fixed before any work is booked.
Related advice
What affects the quote in Lower Swanwick
The price is fixed before any work begins. It takes into account:
- How big the system is
- Whether it’s a one-off visit or part of a schedule
- Access, including roofs, risers and ceiling voids
- Working hours and out-of-hours timing
Several systems or sites on one quote can make for a more efficient booking. Mention every system or site you need covered, and you will get one fixed quote.
What we need to know
Many jobs can be priced from pictures and some basics. Useful things to send:
- Problems your staff have spotted
- Detail shots of panels, filters and grilles
- Your last certificate, test record or report
- Where the plant sits or the system leaves the building, such as a roof or outside wall
To get a fixed quote, phone us on 0345 646 2711 or use the quote form 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. You’ll usually have a quote within one working day.
Why it’s worth doing now in Lower Swanwick
A light clean now is simpler than a heavy one later. Leave it for years and dirt bakes onto coils and casings, especially where there’s been moisture. Planning a trip to Lower Swanwick ahead is easier for everyone than a rushed one.
No two sites are the same, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
Why choose Duct Doctor in Lower Swanwick
- Evenings, overnight and weekends, plus 24/7 emergency callout
- In business since 2009
- A single point of contact for sites across the South East and London
- CHAS and SafeContractor accredited, with ISO 9001