Hampshire · Air handling unit cleaning
AHU Cleaning in Greatham
Looking for AHU cleaning in Greatham? We diagnose first, fix the price and book the work around your hours, finishing with a written report and pictures.
- Rooms that smell stuffy when the system runs
- Filters that are clogged or overdue
- Plant that needs cleaning after a refit
AHU cleaning in Greatham
We clean air handling units for buildings in Greatham and across Hampshire, working to TR19® Air, in buildings such as offices, schools, healthcare sites and shops. Units are cleaned when the site can spare them, often evenings, overnight or weekends. If you have dust-coated heating and cooling coils and air handling units never cleaned inside, we can help.
Somewhere as small as Greatham, ducted ventilation is normally limited to a school, a care home, a surgery or a converted business building, wherever there is one, but those that do need it inspected and cleaned like any other.
Accreditations are easy to claim and worth checking. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Location
- Greatham (GU33)
- Wider area
- Hampshire
- Paperwork
- Photo report after every visit
- Price
- Fixed quote, usually within a working day
- Hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
Do you need AHU cleaning in Greatham?
Filters catch most of the dust, but not all of it. What gets through settles on coils, fans and the inside of the casing, a little more each month.
Common reasons sites call us include:
- Air handling units never cleaned inside
- Odours coming through the supply air
- Air handling units with blocked filters
- Units needing a clean before a new tenant or handover
If you manage a school such as Greatham Primary School, ventilation cleaning is best booked for the holidays.
What to look for in a quote
- Whether the price is fixed
- What paperwork you get at the end
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- What happens if part of the system cannot be accessed
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.
Drain trays
Drain trays can rust and leak over time. Their condition goes into the report with pictures so repairs can be planned.
How the visit works
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Anything that needs to be off for the work is switched off and left to cool before we start, and the area around the work is covered and protected. The work itself takes anything from half a day for one small unit to several shifts for a plant room full of them. In a small place like Greatham, the journey is planned ahead and the visit arranged around the site’s hours.
- First we agree when the unit can be switched off, including evenings or weekends.
- Before cleaning, each section is photographed.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- We finish with the fan section and the drain tray.
- We take after pictures and issue the certificate and report.
Preparing for the visit
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Find the previous report, if there is one
- Let us know about permits to work or site inductions
Getting a quote
Some systems can be priced from pictures; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.
Advice
Towns and villages near Greatham
More services for Greatham
Managing agents and facilities teams in Greatham
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements, and we will send a fixed quote.
Whether it’s one building or many, the standard is the same: a survey first, a fixed quote, the work timed around the site and a report with photos.
Questions from Greatham
Is Greatham in your area for AHU cleaning?
Yes. Our area runs across London and the South East, Greatham included. To start, call 0345 646 2711, or send details by email with a few photos of the system.
Do you cover smaller places like Greatham?
Yes, smaller places are covered as well as towns. Just mention lanes, gates or anything else about the site when you book.
What information do you need?
Where the site is, what it is and when it’s open, along with a few pictures and any previous report.
Do you have a 24/7 line?
Yes. There’s a 24/7 emergency line for anything that cannot wait until a planned visit. Ring any time and tell us what’s happened.
Can you price the work without visiting?
In many cases, yes. Photos of the system and the access, plus your opening hours and last report, are often enough. Larger or hidden systems need a survey on site first.
Can you look after several sites?
Yes. One number covers all your sites in our area, and visits can be set on a regular cycle.
How much does AHU cleaning cost?
Size, condition, access and working hours all affect the cost. Call for a fixed quote and we will normally reply within one working day.
What does TR19 mean?
TR19® is BESA’s specification for ventilation hygiene. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
What a clean will not put right
Some problems need a different service or another trade:
- Faulty motors, drives or bearings
- Problems with the unit’s controls or sensors
- The supply and extract ducts, quoted separately
Not sure which it is? You can ring 0345 646 2711 or use the quote form and we’ll tell you honestly before booking.
Where we work
- Heating and cooling coils
- Drain trays
- Filter sections
- Internal panels
- Supply and extract fans
- Dampers and louvres
Ventilation in Greatham buildings
Greatham, about 45 miles from central London, is within our usual area. Visits are booked around your hours, evenings and weekends included. The nearest hospital to Greatham is Chase Community Hospital, about 2.5 miles north-east. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes.
If you run a surgery, dental practice or care home near Greatham, clean ventilation matters as much to you as to a hospital like Chase Community Hospital (about 2.5 miles north-east).
Greatham is about 5 miles north-east of Petersfield, in Hampshire. Sites in Greatham get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with photos. Greatham is one of 683 towns, villages and districts in Hampshire we cover for AHU cleaning. For sites nearby, see our Guildford page (18 miles or so).
We cover every part of GU33 for AHU cleaning and the streets around it. Whether your site is on Longmoor Road, Wolfmere Lane and Todmore or anywhere close by, our technicians can take on the work. We also cover Longmoor (1 mile east), Woolmer (1 mile north), Liss Forest (1 mile south), Blackmoor (1 mile north) and The Mint (2 miles south). Further out, we also cover Havant (15 miles south), Fleet (14 miles north), Horndean (13 miles south-west), Aldershot (13 miles north-east), Alton (7 miles north-west) and Waterlooville (15 miles south-west).
Local landmarks in Greatham
The nearest railway station is Liss station, roughly 2 miles south of the centre. Nearby you’ll also find The Romany Museum (2.9 miles north-west) and Chase Community Hospital (2.5 miles north-east). The countryside around Greatham includes Liss Riverside Railway Walk North and Selborne Hill.
Fixed quotes for AHU cleaning in Greatham
Every site gets its own quote. These are the things that affect it:
- What state the system is in
- Access, including roofs, risers and ceiling voids
- Site requirements such as sign-in and permits
- How many systems or sites are involved
Working hours, access and the scale of the site can all change the price. Each of those is built into the quote and give you a fixed price before any work starts.
Asking for a quote
Before you ask for a quote, gather:
- Where the site is and what kind of site it is
- When the site is open and when it’s quiet
- Wide photos of the system and the area around it
- Your last certificate, test record or report
Quotes are quick. Send a few details and photos, and we normally reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
Why deal with it now?
A slimy drain tray only gets worse. Leave it and you risk overflows, leaks into the space below and odours carried round the building. Dealing with it early keeps the clean straightforward. In a small place like Greatham, a system that fails can take a site out of use.
Every site is different, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all play a part.
What you get with us
- We diagnose before we treat
- Full insurance on every job
- Work around your opening hours, with 24/7 emergency cover
- One number for every site across the South East and London
Read what affects the cost or our accreditations.