Hampshire · Air handling unit cleaning
Shalden AHU cleaning
Looking for AHU cleaning in Shalden? We survey first, give you a fixed quote and work around your opening hours, then sign off with a report and photos.
- Odours coming through the supply air
- Dust-coated heating and cooling coils
- Dirty fans and fan housings
AHU cleaning in Shalden, done properly
A cooling coil drips condensate into a tray that should drain away. 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 have blocked condensate drains and slimy trays and rooms that smell stuffy when the system runs, we can put it right, from internal panels, drain trays and filter sections onwards.
Somewhere as small as Shalden, ducted ventilation is typically 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.
Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Place
- Shalden (GU34)
- Wider area
- Hampshire
- Reporting
- Report and photos after the visit
- Quote
- A fixed quote up front
- Working hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Looking after it afterwards
Aftercare is simple, and it helps at the next visit:
- Note any water around the unit or leaks below it
- Book the next check in line with the report
- Clear leaves and litter away from the intake
- Report stiff or damaged access doors
Restart the unit with your site team or maintenance contractor once we’ve finished. Check the drain tray is emptying over the first few days to make sure it stays clear.
Keep the area around the intake clear. Anything around the intake is likely to be drawn in.
Also in Shalden
Leave it or put it right?
Facilities teams are often asked for evidence that the ventilation is looked after. Our certificate and photo report give you clear evidence, ready to show anyone who asks. Equipment tucked in a roof space or outbuilding near Shalden rarely gets looked at unless someone books it.
Working hours, access and the scale of the site all affect the cost. We take each of them into account and give you a fixed price before work begins.
Why Shalden businesses choose us
- Accredited under CHAS and SafeContractor, with ISO 9001
- Fixed quotes from a survey or pictures
- Out-of-hours work and a 24/7 emergency line
- We’re fully insured
Read our cost guide and our accreditations.
Different parts, different methods
Rooftop and plant room units
Ceiling-mounted and compact units are cleaned too. The space underneath is protected with sheeting first.
Fans and fan sections
Dust on a fan impeller adds weight and wear. A clean fan runs more smoothly.
Multi-site and managed buildings
Keeping records across a portfolio is half the battle. Every visit ends with a dated report and photos, so you can show an insurer or inspector what was done at each site.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.
What staff can safely do
Staff cleaning and specialist work are not the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks shows an inspector that the system is looked after between visits, next to our reports.
Shalden buildings and their air
The nearest hospital to Shalden is Alton Community Hospital, about 2.3 miles south. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital. We cover Shalden, about 45 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.
Healthcare buildings such as Alton Community Hospital, about 2.3 miles south, depend on their ventilation; if you manage a surgery, clinic or care home near Shalden, yours matters too. Around Shalden, as anywhere, ventilation cleaning begins with an inspection.
Shalden is about 2 miles north-west of Alton, in Hampshire. We provide AHU cleaning for businesses, landlords and public buildings in Shalden and the rest of Hampshire. Shalden is one of 683 places in Hampshire where we work for AHU cleaning. Our Reading page covers sites nearby, about 19 miles away.
We work across GU34 for AHU cleaning and the roads nearby. AHU cleaning is available to premises on Southwood Road, Stancombe Lane and Shalden Lane and the roads around them. We also cover Shalden Green (1 mile north), Thedden (2 miles south-west), Beech (2 miles south), Bentworth (2 miles south-west) and Southrope (2 miles north-west). Further out, we also cover Basingstoke (8 miles north-west), Farnborough (13 miles north-east), Fleet (10 miles north-east), Aldershot (12 miles north-east), Petersfield (12 miles south) and Yateley (14 miles north-east).
Near you in Shalden
The closest station to Shalden is Alton station, about 2.1 miles south-east. Nearby you will also find Gliding Heritage Centre (1.3 miles north-west) and Alton Community Hospital (2.3 miles south). The countryside around Shalden includes Holybourne Hill.
When it’s something else
It’s worth knowing the limits before booking:
- Building management system faults
- Airflow problems caused by the system’s design
- Dirty ducts beyond the unit itself
If you’re not sure, just ring 0345 646 2711, or send details by email and we will give you a straight answer.
Parts of the system we cover
- Internal panels
- Dampers and louvres
- Supply and extract fans
- Drain trays
- Filter sections
- Heating and cooling coils
Your questions about AHU cleaning in Shalden
Can you work in Shalden outside opening hours?
Yes, we can come after you close and finish before you open. The site is handed back ready to open. Let us know the hours you are closed and we will book within them.
Do you work in villages like Shalden?
Yes, smaller places are covered as well as towns. Just mention lanes, gates or anything else about the site when you book.
Will you repair the fan or motor?
The clean includes noting faults, but repairs sit with your maintenance contractor, with photos where it helps.
Are you insured?
Yes, we’re fully insured. We also hold CHAS and SafeContractor for clients who vet their contractors.
Do you work with multi-site operators?
Yes. One number covers all your sites across London and the South East, and visits can be set on a regular cycle.
What does TR19 mean?
A BESA specification in two main parts: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It is not legislation, but it’s the standard people check against.
Can you set up regular visits?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, to suit the system and how it’s used.
How often should an air handling unit be cleaned?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. We recommend a next date in each report.
What we do, step by step
We turn up 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 first, and floors and nearby surfaces are sheeted. On site, it takes from a few hours for a compact unit to a day or more for a large one. If the van will struggle with a lane or gateway near Shalden, let us know and we’ll plan around it.
- We start with a survey of the unit and a fixed quote for the work.
- We arrange the shutdown with your staff and sheet the area.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Drain trays are cleared and cleaned and the outlet checked.
- You get a TR19® certificate and a photo report.
Getting ready for the visit
- Let us know about parking and loading
- Mention any sign-in, permit or induction we need
- Let us know how we reach the system, including roofs, risers and plant rooms
Ask for a quote
Photos are enough for some jobs, while others need a look on site. 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.