Hampshire · Air handling unit cleaning
Air handling unit cleaning in Wallington, Hampshire
AHU cleaning in Wallington from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Condensate trays that won’t empty
- Dust built up on fan impellers
- Coils clogged with dust and debris
What a clean will not put right
A few issues sit outside what this work can do:
- Ductwork downstream of the unit, which is a separate clean
- A system that is undersized for the building
- Coils that are corroded or leaking and need replacing
If you are not sure, just give us a ring on 0345 646 2711, or send details by email and we’ll give you a straight answer before booking.
What we work on in Wallington
- Internal panels
- Dampers and louvres
- Supply and extract fans
- Filter sections
- Heating and cooling coils
- Drain trays
AHU cleaning for kitchens and businesses in Wallington
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. Coils are cleaned carefully, with methods chosen so the fins are not flattened. The work covers dampers and louvres, supply and extract fans and filter sections, and common reasons people get in touch are coils clogged with dust and debris and filters that are clogged or overdue.
In a smaller place like Wallington, buildings with ducted ventilation are more likely to be a school, a surgery, a care home or a small business unit than an office block. Even a small system collects dust in its ducts and filters.
Duct Doctor has been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
- Place
- Wallington (PO16, PO14, PO17)
- Wider area
- Hampshire
- Records
- Written report with photos
- Price
- A fixed price before we start
- Hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Looking after it afterwards
A little care between visits keeps the system in better shape. We recommend:
- Plan the next inspection before the last report gets filed away
- Report musty smells from the vents right away
- Change filters on schedule and log each change
- Store the TR19 paperwork where auditors can find it
Keep filter changes on schedule between cleans, as that does more than anything to keep the unit clean. Record each change in the maintenance log.
Check drain trays and condensate drains during routine maintenance. Catching a slow drain early stops standing water building up.
What we’re called out for in Wallington
Filters catch most of the dust, but not all of it. The fine dust that passes the filters lands on the coils, the fan and the internal panels, building up layer by layer.
Keep an eye out for these warning signs:
- Units needing a clean before a new tenant or handover
- Air handling units with blocked filters
- Plant that has been serviced but not cleaned
- Dirty fans and fan housings
Hospitals such as Knowle Hospital (about 2.3 miles north-west) show how much a building can rely on clean ventilation, and smaller healthcare sites near Wallington are no different.
Questions to ask before booking
- Whether inaccessible sections are listed on the report
- When they can work, and whether that’s outside your opening hours
- How VAT is shown on the quote
- Whether they recommend a next date
Ventilation in Wallington buildings
Food Standards Agency records list about 20 schools, colleges and universities, about 26 hospitals, care homes and childcare premises and about 3 hotels and B&Bs registered as food businesses within roughly a mile and a half of the centre of Wallington. Busy, occupied buildings like these are where clean supply air matters most. Knowle Hospital is the nearest hospital, about 2.3 miles north-west of Wallington. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
School buildings such as Wykeham House School are usually done in the holidays, so classrooms aren’t disturbed.
Wallington is about 1 mile east of Fareham, in Hampshire. We provide AHU cleaning for businesses, landlords and public buildings in Wallington and the rest of Hampshire. Our Hampshire coverage runs to 683 places, Wallington among them.
We work across the PO16, PO14 and PO17 postcode area for AHU cleaning and the streets around it. We cover sites on Bath Lane, Drift Road and Osborn Road and the roads around them. With the A32 close by, Wallington is easy for our technicians to reach for AHU cleaning. We also cover the places around Wallington: Fareham Common (1 mile south-west), North Fareham (1 mile north), Fareham (1 mile west), Boarhunt (2 miles north-east) and Crockerhill (2 miles north). Larger places within reach include Gosport (4 miles south), Havant (8 miles east), Eastleigh (11 miles north-west), Horndean (8 miles north-east), Totton (15 miles west) and Chandler's Ford (13 miles north-west).
Near you in Wallington
Locally, jobs take us to businesses close to Harrison Primary School, Cams Hill School and The Golden Lion Public House and the streets around them. For rail, the closest station is Fareham station, about 1 mile west of the centre. Well-known places in the area include Fareham Shopping Centre (under half a mile west) and Knowle Hospital (2.3 miles north-west). Not far away are Portsdown Hill and West of the River Alver.
Nearby places to Wallington
What else we do in Wallington
What affects the cost of AHU cleaning
Your quote is based on your site. We take into account:
- Parking and loading at the site
- The times the site is available
- A single visit or a regular plan
- The condition of the system
We do not list prices on the website, because each job is priced on what it involves. Call for a fixed quote, and we’ll explain what it covers.
What to send for a quote
We can often survey from photos. Try to include:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Wide photos of the system and the area around it
- The paperwork from the last visit, if you have it
- Your opening hours and when the area is out of use
Want a quote for AHU cleaning? Please phone us on 0345 646 2711, or email photos and tell us about the site. We’ll explain what we’d do and send a fixed quote before anything is booked.
Common questions in Wallington
Can you come to Wallington after we close?
Yes, nights and weekends are routine for us. The work in Wallington can fit around your hours. Your opening times are the first thing we ask for.
Can you get to a site in Wallington?
Yes. Wallington is within the area we cover across London and the South East. The journey is planned ahead, so a few details about the route help.
Do you do ventilation duct cleaning too?
Yes, supply and extract ducts, grilles and diffusers. The survey shows whether the ducts need cleaning now.
Can you fix a faulty AHU?
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.
What information do you need?
Just the basics: where it is, what kind of site, when it’s open and the access. Photos and any previous paperwork make it quicker. Then call us on 0345 646 2711 or use the quote form.
What’s included in an AHU clean?
Every section that collects dirt: filters, coils, tray, fan and panels. The survey confirms what’s in your unit before we quote.
What happens to the waste?
Anything we remove is contained as we work and taken away with us, including grease, debris and dirty water. None of it is left on site.
What is TR19?
A BESA specification, with two parts that matter most here: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It isn’t law, but it’s the benchmark.
For landlords and multi-site operators
Multi-site operators often want one contractor and one number. We cover South East England and London, so visits at different addresses can be planned together and kept to a regular schedule.
Keeping records across a portfolio is half the battle. Each visit produces a dated report with photos, so you can show an insurer or inspector what was done at each site.
What staff can safely do
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, alongside our reports.
Staff cleaning and specialist work aren’t the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they don’t reach the grease that builds up further in. That part needs specialist access and equipment.
What happens on the day
The visit has three parts: 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 photos. Most of the time goes on the work itself, and that takes a single shift for a typical unit, longer for large or heavily soiled ones. Around Wallington, access is usually simpler than in a town centre, though gates and roof access are worth mentioning.
- The survey covers the unit, its access and how it can be shut down.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Getting ready for the visit
- Arrange a key holder or contact on site
- Dig out any earlier paperwork for the system
- Mention any parking or loading restrictions
Getting a quote
Here’s what helps us quote: where the site is, what it is and its opening hours, a few photos and any previous report or certificate. Then call us on 0345 646 2711 or use the quote form.