Hampshire · Air handling unit cleaning
South Warnborough AHU cleaning
One call covers cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in South Warnborough, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Air handling units never cleaned inside
- Air handling units due a clean after building work
- Stale or musty smells from the ventilation
How we handle AHU cleaning in South Warnborough
The fan pushes every bit of air in the system, so dirt on the impeller and housing gets spread around. We clean the fan section along with the rest of the unit, with the unit switched off and made safe first. Typical jobs include fan sections that haven’t been cleaned in years and condensate trays that won’t empty, across internal panels, heating and cooling coils and supply and extract fans.
Somewhere as small as South Warnborough, 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: a dated account with pictures of everything we did. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Place
- South Warnborough (RG29)
- Region
- Hampshire
- Paperwork
- Report and photos after the visit
- Quote
- A fixed quote up front
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Fixed quotes for AHU cleaning in South Warnborough
The diagnosis comes before the price. The main factors are:
- The condition of the system
- Site requirements such as sign-in and permits
- Whether we need access equipment or extra panels
- The size of the system
A single site or a whole portfolio, the quote is built the same way: what needs doing, how we get to it and when. You’ll have a fixed price before work begins.
What we need to know
When you contact us, these details help:
- Close-ups of filters, grilles, hatches or access panels
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- The paperwork from the last visit, if you have it
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
Quoting starts with a diagnosis, from your photos and details or, where that isn’t enough, a survey on site. Then we send a fixed price, before we start.
What your team can do, and what needs us
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, they should report it rather than try to fix it. We can diagnose it and quote.
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, next to our reports.
How it works
Your trading hours come first. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the work takes a single shift for a typical unit, longer for large or heavily soiled ones. The timing of a visit to South Warnborough is set by you, and the travel is our side of the planning.
- We look at the unit and the plant area during the survey.
- The area is protected and the unit made safe.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
How to prepare
- Name a contact who can let us in at the agreed time
- Have your last certificate or report to hand
- Let us know when the site is closed or quiet
Get a fixed quote
Quotes are quick. Call or email with a few details and you’ll usually have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.
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Towns and villages near South Warnborough
Other services in South Warnborough
South Warnborough buildings and their air
The nearest hospital to South Warnborough is Alton Community Hospital, about 5.8 miles south. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital. About 42 miles out from central London, South Warnborough is part of the South East area we work across. We work evenings, overnight and at weekends, so the visit fits around the site.
Healthcare ventilation, from large hospitals like Alton Community Hospital (about 5.8 miles south) to small clinics, depends on clean filters, coils and ducts.
South Warnborough is about 5 miles north of Alton, in Hampshire. Every kind of commercial site in South Warnborough, we can take on AHU cleaning. We can work out of hours so the site keeps running. 683 places in Hampshire are on our list, from busy centres to quieter spots. You can also see our page for Reading, about 16 miles away.
We cover every part of RG29 for AHU cleaning and the streets around it. Local streets include Gaston Lane, Tigwells Field and Alton Road, and we cover them all for AHU cleaning. Neighbouring places we cover for AHU cleaning include Long Sutton (1 mile east), Bidden (1 mile north-west), Little Hoddington (1 mile north-west), Well (2 miles east) and Greywell (3 miles north). Further out, we also cover Basingstoke (7 miles north-west), Farnborough (10 miles north-east), Fleet (7 miles north-east), Aldershot (9 miles east), Alton (5 miles south) and Petersfield (15 miles south).
Landmarks near South Warnborough
For rail, the closest station is Hook station, about 3.9 miles north of the centre. Other landmarks nearby include Odiham Castle (2.7 miles north) and Gliding Heritage Centre (3.5 miles south-west). Not far away are Holybourne Hill and Dogmersfield Lake.
When something else is needed
We will always give you a straight diagnosis, so here’s what this work can’t put right:
- A system that’s undersized for the building
- Controls and BMS settings that run the unit
- Coils that are corroded or leaking and need replacing
If you are not sure, just give us a ring on 0345 646 2711 or use the quote form and we will give you a straight answer.
Parts of the system we cover
- Dampers and louvres
- Supply and extract fans
- Internal panels
- Filter sections
- Drain trays
- Heating and cooling coils
What the work involves, part by part
Fans and fan sections
Dust on a fan impeller adds weight and wear. A clean fan runs more smoothly.
Heating and cooling coils
A dirty coil holds back the air and makes heating and cooling less effective. A clean gets air moving through the coil properly again.
South Warnborough: your questions answered
Is AHU cleaning available in South Warnborough?
Yes, South Warnborough is covered. You can call us on 0345 646 2711 or email us and let us know what needs doing.
Do you work in villages like South Warnborough?
Yes, smaller places are covered as well as towns. Let us know about access, parking and anything unusual about getting there when you book.
Which parts of an air handling unit do you clean?
Everything inside the unit that air passes over, from intake to discharge, including coils, fan and drain trays. The photo report shows each section before and after.
What should I send you?
Just the basics: the address, the site type, your opening hours and how we reach the system. Photos and any previous paperwork make it quicker. Then ring 0345 646 2711 or drop us a line.
Which kinds of sites do you work on?
Any site with a kitchen or a ventilation system to look after, from a small pub to a hospital. We work with hotels, schools, care homes, offices, retail and leisure sites.
How long does an AHU clean take?
Typically the clean takes a single shift for a typical unit, longer for large or heavily soiled ones. The shutdown is planned to fit, including evenings or weekends.
Will the ventilation be off while you clean?
Yes. Cleaning needs the unit off and isolated, and we time the work to suit the site.
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 photos.
When to call us in South Warnborough
Whatever surrounds a building in South Warnborough, the air drawn into its AHU carries dust, pollen and debris. The intake section and first filters take the brunt, and the finer material travels on.
Any of these means the system needs a check-up:
- Debris and leaves in the fresh air intake
- Condensate trays that will not empty
- Plant that has been serviced but not cleaned
- Stale or musty smells from the ventilation
School buildings such as Robert May's School are usually done in the holidays, so classrooms are not disturbed.
What your quote should include
- What happens if part of the system can’t be accessed
- What hours they’ll be on site
- What insurance they carry
- Exactly which parts of the system are covered
Aftercare tips
To keep the system working properly between visits:
- Book the next check in line with the report
- Watch for drips or damp patches near the plant
- File each AHU report in the maintenance log
- Make sure the unit’s access doors open easily
Once the clean is done, we send a TR19® certificate and a report with before and after photos. They belong in the plant or maintenance log.
Change or clean filters on time. Overloaded filters let more dirt through to the coils and fan.