Hampshire · Air handling unit cleaning
AHU Cleaning in Harestock
We cover Harestock for cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Fixed quotes, work around your opening hours and photo reports on every job.
- Coils clogged with dust and debris
- Plant that needs cleaning after a refit
- Intake sections clogged with outdoor debris
AHU cleaning in Harestock, done properly
An AHU clean is a thorough examination and treatment of the unit. We look inside each section, clean what we find and record it with photos, so the report shows exactly what was done. The work covers heating and cooling coils, drain trays and filter sections, and the jobs we see most are air handling units due a clean after building work and stale or musty smells from the ventilation.
For a building near Harestock, the visit is planned around how it’s used, and the journey is planned ahead. The method does not change: inspect first, clean, then record what was done.
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. File it in your maintenance log so it’s to hand when an insurer or inspector asks.
- Location
- Harestock (SO22)
- Wider area
- Hampshire
- Records
- Photo report after each visit
- Quotes
- A fixed quote up front
- When we work
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
What affects the cost of AHU cleaning
We quote each job individually. This is what makes a difference:
- What state the system is in
- Where the site is and how we reach it
- How easy every part is to reach
- Whether it’s a one-off visit or part of a schedule
When the work has to happen, how we reach it and how big the site is can all change the price. We take each of them into account and give you a fixed price before work begins.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- Wide photos of the system and the area around it
- The times we could work without disrupting the site
- The site address and the type of premises
- How we’d reach plant on a roof or in a plant room
For a fixed quote, call us on 0345 646 2711 or use the quote form and tell us the type of site, your opening hours and roughly what the system looks like. A few pictures and your last certificate or report help a lot. We normally come back within one working day.
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
Older trays can corrode and start leaking. We record their condition with photos so repairs can be planned.
How the visit works
Your trading hours come first. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. Once we’re in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes anything from half a day for one small unit to several shifts for a plant room full of them. Tell us about any gates, ladders or locked plant areas at your site near Harestock when you book.
- The survey covers the unit, its access and how it can be shut down.
- 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.
- The unit is closed up and handed back, with a report to follow.
Before we arrive
- Clear loose items from the work area
- Mention any sign-in, permit or induction we need
- Mention any locked doors, roof access or ceiling voids
Get a fixed quote
To help us quote: the address, the type of site and when it’s open, a few photos and any previous report or certificate. Then call us on 0345 646 2711, or send details by email.
Advice
When something else is needed
Not every problem is solved by AHU cleaning, and we’ll tell you before we start. It does not solve:
- Airflow problems caused by the system’s design
- Damaged coils beyond cleaning
- Building management system faults
If in doubt, call us on 0345 646 2711, or send details by email and we’ll say what we think before booking.
What the work covers
- Heating and cooling coils
- Dampers and louvres
- Internal panels
- Filter sections
- Supply and extract fans
- Drain trays
Looking after it afterwards
After the visit, a few habits help the work last:
- Keep the area around the fresh air intake clear
- Watch for drips or damp patches near the plant
- Diary the inspection date recommended in the report
- Report musty smells from the vents right away
You receive a TR19® certificate and a photo report after the clean. Keep both with the building’s maintenance records.
Do not let leaves, litter or stored materials build up near the fresh air intake. Anything around the intake is likely to be drawn in.
Harestock questions
Do you clean school ventilation in Harestock in the holidays?
Yes. Half-terms and the summer break are the natural time for school work. Around Harestock, the Food Standards Agency lists about 11 schools and colleges with registered kitchens within a mile and a half or so. Booking early in the term gives the best choice of holiday dates.
Do you work at weekends in Harestock?
Yes, nights and weekends are routine for us. It means the site in Harestock keeps running as normal. When you phone us on 0345 646 2711, or email photos, mention when the site is quiet.
Will you repair the fan or motor?
AHU cleaning is what we offer here, not mechanical repairs. If we spot a fault, we note it in the report so your maintenance contractor can deal with it.
What’s TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
How long will the unit be out of action?
Cleaning takes a single shift for a typical unit, longer for large or heavily soiled ones. Large plant can be split over several shifts, and you can phone us on 0345 646 2711 or drop us a line to plan it.
Can you look after several sites?
Yes. You deal with one contact for every site in our area, with visits on a regular schedule.
Which accreditations do you hold?
We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
Do you look at the system first?
Yes. Every job is surveyed first, either from photos and details you send or on a site visit. A fixed quote follows.
Managing agents and facilities teams in Harestock
From a single site to a large estate, you get the same standard: a survey first, a fixed quote, the work timed around the site and a report with photos.
If you look after several sites, we can schedule visits across all of them on one quote. Every building has its own written report, so records stay tidy.
Nearby places to Harestock
What else we do in Harestock
AHU cleaning in Harestock: local notes
The FSA’s food hygiene register lists about 11 schools, colleges and universities and about 16 hospitals, care homes and childcare premises with registered kitchens or food service within roughly a mile and a half of the centre of Harestock. Busy, occupied buildings like these are where clean supply air matters most. For Harestock, the closest hospital is Royal Hampshire County Hospital, roughly 1.5 miles south. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
If you run a surgery, dental practice or care home near Harestock, clean ventilation matters as much to you as to a hospital like Royal Hampshire County Hospital (about 1.5 miles south).
Harestock is about 2 miles north-west of Winchester, in Hampshire. We provide AHU cleaning for businesses, landlords and public buildings in Harestock and the rest of Hampshire. Across Hampshire, we cover 683 places, Harestock among them. There’s also a page for Southampton, roughly 12 miles from Harestock.
Postcode districts we cover here for AHU cleaning: SO22. That includes premises on Kennel Lane, Burley Road and Stoney Lane and the roads around them. We also cover the places around Harestock: Littleton (1 mile north-west), Weeke (1 mile south), Abbotts Barton (1 mile south-east), Hyde (1 mile south-east) and Headbourne Worthy (1 mile north-east). Further out, we also cover Eastleigh (8 miles south), Andover (11 miles north-west), Totton (14 miles south-west), Chandler's Ford (7 miles south), Hedge End (12 miles south) and Romsey (9 miles south-west).
Near you in Harestock
Typical jobs here are in premises near Henry Beaufort School and The Running Horse pub, among other places. The nearest railway station is Winchester station, about 1.2 miles south-east. Other landmarks nearby include Royal Observer Corps Museum (1.1 miles south-east) and Royal Hampshire County Hospital (1.5 miles south). The countryside around Harestock includes Twyford Down and Winnall Moors.
Signs you need AHU cleaning in Harestock
Filters that aren’t changed or cleaned on time clog up, which cuts the airflow and can let air slip round the filter. Then the rest of the unit takes the load.
These are the problems we see most often:
- Fan sections that haven’t been cleaned in years
- Rooms that smell stuffy when the system runs
- Leaves and litter drawn into the unit
- Plant that has been serviced but not cleaned
Wherever a school like Harestock Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
What to look for in a quote
- If they look at the system before pricing
- How they set the interval to the next visit
- Whether the price is fixed
- Exactly which parts of the system are covered