Hampshire · Air handling unit cleaning
AHU Cleaning in Worthy Down
For AHU cleaning in Worthy Down, one call is all it takes, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Dust-coated heating and cooling coils
- Units that have only ever had filter changes
- Dirty fans and fan housings
Common problems we fix in Worthy Down
Filters that are not 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.
Common reasons sites call us are:
- Dust built up on fan impellers
- Filters that are clogged or overdue
- Plant that has been serviced but not cleaned
- Leaves and litter drawn into the unit
Healthcare buildings such as Royal Hampshire County Hospital, about 3.5 miles south, depend on their ventilation; if you manage a surgery, clinic or care home near Worthy Down, yours matters too.
What to look for in a quote
- What insurance they carry
- If they look at the system before pricing
- Whether the whole system is included, or only the parts that are easy to reach
- How areas they can’t reach will be recorded
About our AHU cleaning in Worthy Down
Our AHU cleans for sites in Worthy Down cover the parts that collect dirt: filters, coils, drain trays, fans and the internal panels. You get a TR19® certificate and a photo report showing the unit before and after. Common call-outs are for leaves and litter drawn into the unit and rooms that smell stuffy when the system runs, on drain trays, filter sections and internal panels.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, where filters and drain trays get forgotten.
Good records are part of the job. Each visit is written up with pictures, covering the work done, any areas we couldn’t access and a recommended next date. File it in your maintenance log so it’s to hand when an insurer or inspector asks.
- Location
- Worthy Down (SO21)
- Wider area
- Hampshire
- Paperwork
- Photo report after every visit
- Quotes
- A fixed quote up front
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
Also near Worthy Down
More services for Worthy Down
Between visits
Looking after the system between visits is straightforward, and it makes the next visit easier:
- Store the TR19 paperwork where auditors can find it
- Note any water around the unit or leaks below it
- Flag stale or damp smells in the supply air
- Look at the condensate drain whenever the unit is serviced
Photos in the report cover the filters, coils, drain tray, fan and casing, along with anything we couldn’t reach. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Make the drain tray part of every maintenance visit. Catching a slow drain early stops standing water building up.
Fixed quotes for AHU cleaning in Worthy Down
We do not publish a price list, because sites vary so much. What we look at:
- One-off work versus a regular cycle
- Access, including roofs, risers and ceiling voids
- The number of sites or systems
- What state the system is in
What you pay reflects the actual work. That is why every job is surveyed first, and why the quote is fixed before we start.
What we need to know
What to send for a quote:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Wide photos of the system and the area around it
- The times we could work without disrupting the site
- Close-ups of filters, grilles, hatches or access panels
There’s no standard price list, because no two systems are the same. We look at your system first, from photos or on a visit, then send a fixed quote. To start, call us on 0345 646 2711 or send us an email.
Worthy Down buildings and their air
Worthy Down, about 60 miles from central London, is within our usual area. Evening, overnight and weekend visits are all possible. The nearest hospital to Worthy Down is Royal Hampshire County Hospital, about 3.5 miles south. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
If you manage a school such as South Wonston Primary School, ventilation cleaning is best booked for the holidays.
Worthy Down is about 4 miles north of Winchester, in Hampshire. Sites in Worthy Down get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with pictures. We cover 683 places across Hampshire, large and small. Southampton is in our area too, about 14 miles from Worthy Down.
We cover every part of the SO21 postcode area for AHU cleaning and the roads nearby. Whether your site is on Coopers Close, Coate Drive and Wellesley Drive or a nearby road, our technicians can take on the work. We also cover the places around Worthy Down: South Wonston (1 mile north), Springvale (2 miles south-east), Crawley (3 miles west), Sutton Scotney (3 miles north) and Stoke Charity (3 miles north-east). Within a short drive, we also cover Basingstoke (15 miles north-east), Winchester (4 miles south), Eastleigh (10 miles south), Andover (9 miles north-west), Totton (15 miles south-west) and Chandler's Ford (9 miles south).
Local landmarks in Worthy Down
Locally, jobs take us to businesses close to Henry Beaufort School and the streets around them. The closest station to Worthy Down is Winchester station, about 3.2 miles south. Other landmarks nearby include Royal Hampshire County Hospital (3.5 miles south) and Royal Observer Corps Museum (2.7 miles south-east). Green spaces nearby include Winnall Moors.
What your team can do, and what needs us
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.
For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
How it works
On the day, we arrive at the time agreed with you, which is often after service, overnight or at a weekend. Equipment that has to be off is switched off and allowed to cool before work begins, and the area around the work is covered and protected. The work itself takes half a day to a full day per unit, with large plant planned over several shifts. Visits to a village like Worthy Down are booked in advance, at a time that suits whoever runs the site.
- First the unit is surveyed, from photos or a visit, and the scope agreed.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Standing water and slime come out of the tray and the drain is checked.
- You get a TR19® certificate and a photo report.
Before we arrive
- Mention any locked doors, roof access or ceiling voids
- Mention any sign-in, permit or induction we need
- Tell us the best time to work, such as after service or at a weekend
Getting a quote
For a fixed quote, ring 0345 646 2711, or email photos and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. We normally come back within one working day.
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FAQs for Worthy Down
Can you work in Worthy Down outside opening hours?
Yes. We work evenings, overnight and at weekends. The site is handed back ready to open. Just phone us on 0345 646 2711 or email us with your opening times and we’ll plan around them.
Do you clean school ventilation in Worthy Down in the holidays?
Yes, and it’s the easiest time to do it. With about 2 schools and colleges on the FSA’s register within roughly a mile and a half of Worthy Down, it pays to plan holiday dates ahead. Tell us your holiday dates and we will book the visit for when the site is empty.
Do you give a certificate after the clean?
Yes. A TR19® certificate and photo report are sent after the clean, including anything we think needs attention.
How long will the unit be out of action?
As a guide, it takes one overnight shift for many single units, with bigger plant phased. The shutdown is planned to fit, out of hours if needed.
Do you work in Worthy Down?
Yes. Worthy Down is part of the area we cover, as part of our area across London and the South East.
Where does the waste go?
It leaves the site with us at the end of the visit. During the work, it’s contained to keep the area clean.
What should I send you?
Some photos and a quick description of the system plus the address and your hours. If we need more, we’ll ask.
Do you offer emergency callouts?
Yes. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line and we will talk you through the next steps.
When something else is needed
Not every problem is solved by AHU cleaning, and we will tell you before work begins. It won’t put right:
- Controls and BMS settings that run the unit
- Faulty motors, drives or bearings
- Airflow problems caused by the system’s design
If you are not sure, just give us a ring on 0345 646 2711 or send us an email and we’ll give you a straight answer.
What the work covers
- Drain trays
- Dampers and louvres
- Heating and cooling coils
- Supply and extract fans
- Internal panels
- Filter sections
What the work involves, part by part
Rooftop and plant room units
Units on roofs and in plant rooms can be awkward to reach. Access is planned during the survey, before we quote.
Fans and fan sections
Every bit of air passes the fan, so a dirty fan sends dirt downstream. We clean the impeller, housing and surrounding section.