Hampshire · Air handling unit cleaning
Air handling unit cleaning in North Waltham, Hampshire
Need AHU cleaning in North Waltham? We diagnose first, fix the price and book the work around your hours, then sign off with a report and photos.
- Filters that are clogged or overdue
- Debris and leaves in the fresh air intake
- Fan sections that haven’t been cleaned in years
How we handle AHU cleaning in North Waltham
Drain trays under cooling coils are meant to empty. When the drain blocks, water sits there and the tray turns slimy, right in the path of the air going into the building. Clearing and cleaning the tray is central to every AHU clean. If you’re dealing with coils clogged with dust and debris and fan sections that haven’t been cleaned in years, we can help, from internal panels, drain trays and supply and extract fans onwards.
Work in a small place like North Waltham starts with agreeing access and timings, and the ventilation is inspected, cleaned and recorded the same as anywhere.
For insurers and inspectors, the record counts. So every job comes with a written report and pictures, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Place
- North Waltham (RG25)
- Region
- Hampshire
- Reporting
- Report and photos after the visit
- Price
- A fixed price before any work starts
- Hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Why act early in North Waltham
Standing water in a drain tray does not clear itself. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Dealing with it early keeps the clean straightforward. Out of sight is the usual reason a rural system goes too long without attention.
Combining work into one visit or one programme can make for a more efficient booking. Tell us about everything you’d like looked at and we will price it together.
Why us?
- Fixed quotes, normally within one working day
- Fully insured
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Work around your opening hours, with 24/7 emergency cover
Take a look at our cost guide and our accreditations and certificates.
Signs you need AHU cleaning in North Waltham
Mechanical servicing keeps a unit running, but it doesn’t always include cleaning the inside. So a unit can be well maintained and still dirty.
Common reasons sites call us include:
- Air handling units due a clean after building work
- Leaves and litter drawn into the unit
- Odours coming through the supply air
- Condensate trays that will not empty
Wherever a school like North Waltham Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Comparing quotes
- What happens if part of the system cannot be accessed
- Which accreditations they hold, and whether you can check them
- Whether they’re fully insured
- Whether the price is fixed
Keeping the system healthy
So the system stays in good health:
- Keep filter changes on time and recorded
- File each AHU report in the maintenance log
- Flag stale or damp smells in the supply air
- Book the next check in line with the report
The ducts served by the unit may need attention too. Cleaning the unit and ducts together gives the best result, and we can quote for both.
Keep the area around the intake clear. What’s near the intake ends up in the unit.
The process
The visit has three parts: set-up, the treatment itself and the sign-off. Getting ready means protecting surfaces and switching off what needs to be off, and the sign-off is a written report with pictures. The middle part takes longest, which takes half a day to a full day per unit, with large plant planned over several shifts. Somewhere as small as North Waltham, the date and timings are agreed with you well before the day.
- 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.
- The fan and drain tray are cleaned and the drain checked.
- We take after photos and issue the certificate and report.
Getting ready for the visit
- Find the previous report, if there is one
- Tell us the best time to work, such as after service or at a weekend
- Mention any parking or loading restrictions
How to get a quote
To help us quote: where the site is, what it is and its opening hours, pictures of the system and the last certificate or report, if there is one. Once you have those, give us a ring on 0345 646 2711, or send details by email.
Advice
North Waltham questions
Can the work in North Waltham be done at night or at weekends?
Yes, out-of-hours work is a big part of what we do. The site is handed back ready to open. Just phone us on 0345 646 2711 or send us an email with your opening times and we will plan around them.
Can a school’s ventilation in North Waltham be done out of term time?
Yes, holiday work suits schools best. The FSA’s register shows about 2 schools and colleges with food registrations within roughly a mile and a half of North Waltham. Send us your term dates when you call 0345 646 2711, or email photos, and we’ll fit the work in.
What does TR19 mean?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Can you set up regular visits?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, depending on what the system needs.
Which accreditations do you hold?
We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
Do you survey before quoting?
Yes, always. Diagnosis comes before treatment: the survey tells us what the system needs and how to reach it, and the quote is based on that.
How do you protect the area?
With sheeting and covers, before anything else happens. The work is kept contained and clean down when we finish.
How much notice should we give?
It depends on the time you need and how big the job is. Mention your preferred dates with your enquiry, and for anything urgent, ring our 24/7 emergency line.
For landlords and multi-site operators
Facilities teams in offices, schools and healthcare sites book us too in North Waltham and across Hampshire. Larger estates can be phased building by building around the people who use them.
Records are where multi-site compliance often slips. Each visit produces a dated report with photos, so you can show an insurer or inspector what was done at each site.
Honest limits
We’d rather tell you now than book work that won’t help, so these are the things it will not cover:
- Airflow problems caused by the system’s design
- The supply and extract ducts, quoted separately
- Mechanical faults with motors, belts or bearings
If you’re not sure, just call us on 0345 646 2711, or email photos and we will give you a straight answer.
What we work on in North Waltham
- Heating and cooling coils
- Internal panels
- Supply and extract fans
- Dampers and louvres
- Filter sections
- Drain trays
Places near North Waltham
More services for North Waltham
In-house cleaning or a specialist?
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they cannot safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.
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. Cleaning inside ducts and units is specialist work.
What AHU cleaning looks like in North Waltham
About 5.6 miles north-east of North Waltham is Park Prewett Hospital, the nearest hospital. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital. We cover North Waltham, about 51 miles from central London, as part of our work across London and the South East. Visits are booked around your hours, evenings and weekends included.
Park Prewett Hospital, about 5.6 miles north-east, is the nearest hospital to North Waltham, and healthcare sites of every size need their supply air kept clean.
North Waltham is about 5 miles south-west of Basingstoke, in Hampshire. Whether your site is in the middle of North Waltham or further out, AHU cleaning is available to all kinds of commercial premises, from a single unit to a large public building. North Waltham is one of 683 towns, villages and districts in Hampshire we cover for commercial clients. You can also see our page for Reading, roughly 19 miles from North Waltham.
Work in RG25 is surveyed, quoted and booked the same way as anywhere else. That includes premises on Church Road, Chapel Street and Cuckoo Close and the roads around them. We also cover the places around North Waltham: Dummer (2 miles east), Oakley (3 miles north), Kempshott (3 miles north-east), Newfound (3 miles north) and Farleigh Wallop (4 miles east). Further out, we also cover Basingstoke (5 miles north-east), Winchester (12 miles south-west), Andover (12 miles west), Alton (10 miles south-east), Tadley (10 miles north) and Hook (11 miles north-east).
Near you in North Waltham
We work in commercial kitchens and buildings around The Fox pub. The nearest railway station is Micheldever station, about 3.6 miles south-west. Well-known places in the area include Park Prewett Hospital (5.6 miles north-east). For a walk, there’s Farleigh Hill.