Hampshire · Air handling unit cleaning
AHU Cleaning in Test Valley
AHU cleaning across Test Valley and nearby, timed so the site keeps working and finished with a written report and pictures.
- Air handling units with blocked filters
- Blocked condensate drains and slimy trays
- Dirty coils holding back the airflow
How we handle AHU cleaning in Test Valley
All the building’s air passes through the fan, 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. If you are dealing with debris and leaves in the fresh air intake and dirty coils holding back the airflow, we can put it right, from internal panels, drain trays and heating and cooling coils onwards.
For a building in or near Test Valley, access is agreed in advance and the visit is planned around the journey, and the ventilation is inspected, cleaned and recorded the same as anywhere.
Nothing is signed off by word of mouth: a written report, dated and illustrated with photos, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. Any parts we couldn’t reach are recorded on it too.
- Place
- Test Valley (SP11)
- Wider area
- Hampshire
- Reporting
- Report and pictures after the visit
- Quote
- Fixed quote, typically within a working day
- Working hours
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Updated
- 30 October 2026
What affects the cost of AHU cleaning
Before we fix a price, we need to know a few things. We look at:
- Site rules, permits and inductions
- Whether several sites go on one quote
- Travel, parking and unloading
- The condition we find in the survey
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. You’ll have a fixed price before we start.
Asking for a quote
Photos and a few facts are often enough to price the work. Useful things to send:
- Detail shots of panels, filters and grilles
- The postcode and the type of business
- How we’d reach plant on a roof or in a plant room
- The times we could work without disrupting the site
To get a fixed quote, call 0345 646 2711 or email us 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. You will normally have a quote within one working day.
FAQs for Test Valley
Do you work in villages like Test Valley?
Yes. Villages and rural sites across the South East are part of our work, Test Valley included. Photos of the system and directions to the site help us plan the visit.
Do you work at weekends in Test Valley?
Yes, evening, overnight and weekend work is normal for us. The site is handed back ready to open. Tell us your opening hours when you ask for a quote.
Which kinds of sites do you work on?
Any commercial site with kitchens or ventilation, from a small pub to a hospital. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
Is a quote from pictures possible?
Yes, if we can see what we need. Otherwise, we book a survey at a time that suits the site, and the quote follows that.
Do you need to switch the unit off?
Yes, while the clean is under way. We can work evenings, overnight or at weekends to keep disruption down.
Is there a report after cleaning?
Yes, both a certificate and a report with photos. It includes a recommended date for the next check.
What’s included in an AHU clean?
The main parts are the filters, coils, drain tray, fan and inside of the casing. The survey confirms what’s in your unit before we quote.
What do you do to protect the area?
Floors and surfaces near the work are sheeted before we start, and waste is contained as we go. Before we leave, we tidy up and clean down.
Common problems we fix in Test Valley
Cooling coils create condensation, and that water has to go somewhere. If the drain tray outlet blocks or the tray does not fall properly, water stands in it, and that’s where slime and odours start.
Keep an eye out for these warning signs:
- Air handling units with blocked filters
- Dirty fans and fan housings
- Intake sections clogged with outdoor debris
- Coils clogged with dust and debris
In Test Valley, supply and extract ducts are cleaned along with the units that serve them.
Comparing quotes
- What’s included in the scope, part by part
- Which accreditations they hold, and whether you can check them
- What records you’ll receive afterwards
- Whether inaccessible sections are listed on the report
Nearby places to Test Valley
Other services in Test Valley
What AHU cleaning cannot fix
A few issues sit outside what this work can do:
- Dirty ducts beyond the unit itself
- A system that’s undersized for the building
- Problems with the unit’s controls or sensors
Not sure which it is? You can call us on 0345 646 2711, or email photos and we will tell you honestly before you book.
Parts of the system we cover
- Dampers and louvres
- Drain trays
- Internal panels
- Heating and cooling coils
- Supply and extract fans
- Filter sections
Ventilation in Test Valley buildings
Test Valley is about 59 miles from central London, well within the area we cover across London and the South East. Visits are booked around your hours, evenings and weekends included.
Around Test Valley, as anywhere, ventilation cleaning begins with an inspection.
Test Valley is about 7 miles north of Andover, in Hampshire. Across the SP11 area, we can carry out AHU cleaning at your premises. 683 places in Hampshire are on our list, from busy centres to quieter spots. Our Reading page covers sites nearby, about 22 miles away.
Here we cover the SP11 postcode area for AHU cleaning. We also cover the places around Test Valley: Ashmansworth (1 mile east), Vernham Street (3 miles west), Upper Green (4 miles north), Inkpen Common (5 miles north) and Hell Corner (5 miles north). Within a short drive, we also cover Basingstoke (15 miles east), Andover (7 miles south), Tadley (13 miles east), Popley (15 miles east), Tidworth (11 miles south-west) and Kempshott (13 miles east).
Around Test Valley
For a walk, there’s Pilot Hill.
What the work involves, part by part
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.
Drain trays
Drain trays can rust and leak over time. We record their condition with pictures so repairs can be planned.
What we do, step by step
The first job on site is protection: floors, worktops and anything near the work are covered. Then we make the system safe and start. It takes a single shift for a typical unit, longer for large or heavily soiled ones, and the area is cleaned down before we leave. In a small place like Test Valley, 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.
- We take before photos of each section of the unit.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- After photos are taken and the certificate issued.
Before we arrive
- Plan for cooking equipment or plant to be off before we arrive
- Name a contact who can let us in at the agreed time
- Let us know how we reach the system, including roofs, risers and plant rooms
Getting a quote
Quotes are quick. Call or email with a few details and you will typically have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.
Related advice
Aftercare tips
No system stays clean for ever, but care slows the build-up. Our tips:
- Watch for drips or damp patches near the plant
- Book the next check in line with the report
- Stick to the filter change plan
- Make sure condensate is draining away
You receive a TR19® certificate and a photo report after the clean. They belong in the plant or maintenance log.
Regular filter changes are the best protection an AHU has. Once filters clog, dirt starts getting past them.
Managing agents and facilities teams in Test Valley
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Each site gets its own report and photos, so records stay tidy.
We work for landlords, managing agents and facilities managers as well as the people running the site. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we can quote for the whole system.