Surrey · Air handling unit cleaning
Banstead AHU cleaning
We cover Banstead for air handling unit cleaning. Fixed quotes, work around your opening hours and photo reports on every job.
- Dirty fans and fan housings
- Dust-coated heating and cooling coils
- Condensate trays that will not empty
About our AHU cleaning in Banstead
We clean air handling units for buildings in Banstead and across Surrey, working to TR19® Air, in offices, schools, hospitals, care homes and retail. Units are cleaned when the site can spare them, often evenings, overnight or weekends. Typical jobs include dirty fans and fan housings and units needing a clean before a new tenant or handover, across internal panels, heating and cooling coils and dampers and louvres.
In a smaller place like Banstead, buildings with ducted ventilation are more likely to be a school, a surgery, a care home or a small business unit than an office block. Even a small system collects dust in its ducts and filters.
Accreditations are easy to claim and worth checking. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Where
- Banstead (SM7)
- Wider area
- Surrey
- Paperwork
- Report and pictures after the visit
- Price
- A fixed price before any work starts
- Hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Questions from Banstead
Can you come to Banstead after we close?
Yes. We work evenings, overnight and at weekends. It means the site in Banstead keeps running as normal. Your opening times are the first thing we ask for.
Do you do school ventilation cleaning in Banstead in the summer holidays?
Yes. Half-terms and the summer break are the natural time for school work. There are about 6 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Banstead. You can give us a ring on 0345 646 2711, or email photos with the dates the site is empty.
Do you need to switch the unit off?
Yes. The unit has to be shut down and isolated before it’s opened. The shutdown is planned with whoever runs the building.
Are you fully insured?
Yes, we’re fully insured. CHAS and SafeContractor accreditation sit alongside it, for sites that check contractor safety.
What happens if you can’t reach some of it?
We record them on the report, with pictures where possible, and we tell you what would make it reachable, such as extra access panels in ductwork.
How much does AHU cleaning cost?
There’s no set price, as it depends on the job: the size of the system, its condition, access and when we can work. We fix the price before any work starts.
What do you clean inside the unit?
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.
Will we get paperwork for the AHU clean?
Yes. You receive a certificate and a report showing each section before and after, including anything we think needs attention.
Places near Banstead
More services for Banstead
Looking after it afterwards
Here’s the after-treatment advice, short and simple:
- Report water on the plant room floor
- Stick to the filter change plan
- Store the TR19 paperwork where auditors can find it
- Diary the inspection date recommended in the report
When we’ve closed the unit up, it can be restarted with your site team. Keep an eye on the condensate drain over the next few days to make sure it stays clear.
Regular filter changes are the best protection an AHU has. Overloaded filters let more dirt through to the coils and fan.
Landlords, agents and facilities managers
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we’re happy to quote for all of it.
Keeping records across a portfolio is half the battle. Each visit ends with a dated report and photos, so you can show an insurer or inspector what was done at each site.
What happens on the day
Everything the job needs comes with us, including protection sheets, the right tools and access kit. You only need to give us clear access and switch off what needs to be off. The visit takes one overnight shift for many single units, with bigger plant phased. We plan the journey to Banstead and bring what the job is likely to need.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
Preparing for the visit
- Let us know about parking and loading
- Make sure someone can let us in and lock up afterwards
- Allow time for equipment near the work to be turned off and cool down
Get a fixed 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, you get a fixed price before any work starts.
Read more
What staff can safely do
Staff cleaning doesn’t replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.
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.
What AHU cleaning cannot fix
We won’t sell you work that does not address the problem, so these are the things it won’t cover:
- Mechanical faults with motors, belts or bearings
- Building management system faults
- Dirty ducts beyond the unit itself
If you are not sure, just call 0345 646 2711 or drop us a line and we’ll give you a straight answer.
What the work covers
- Heating and cooling coils
- Supply and extract fans
- Dampers and louvres
- Internal panels
- Drain trays
- Filter sections
How the job changes from site to site
Drain trays
The drain tray collects water from the cooling coil. We clear standing water, clean out slime and check the outlet is draining.
Rooftop and plant room units
Smaller units in ceiling voids are part of the work as well. We protect the area below before opening them.
Ventilation in Banstead buildings
Going by the FSA’s register, there are about 6 schools, colleges and universities and about 23 caring premises (care homes, nurseries and hospitals) serving food within 1.5 miles or so of the middle of Banstead. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. Banstead Hospital is the nearest hospital, about 0.9 miles north-east of Banstead. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. We cover Banstead, about 13 miles from central London, as part of our work across London and the South East. The visit is fixed around your opening hours, not ours.
If you manage offices or shops near Banstead station, their ventilation can be inspected and cleaned out of hours. If you run a surgery, dental practice or care home near Banstead, clean ventilation matters as much to you as to a hospital like Banstead Hospital (about 0.9 miles north-east).
Banstead is about 3 miles west of Coulsdon, in Surrey. If you need AHU cleaning in Banstead, it’s easy to get a fixed quote: please ring 0345 646 2711 or send us an email. Our area covers London and the South East, including Banstead. Banstead is one of 395 places in Surrey where we work for commercial clients. We also work in London, around 13 miles away.
AHU cleaning in SM7 is surveyed, quoted and booked the same way as anywhere else. AHU cleaning is available to premises on High Street, Glenfield Road and Highview Path and the roads around them. Main roads around Banstead include the A217 and A2022, so getting to you is simple for evening and night visits. We also cover the places around Banstead: Woodmansterne (1 mile south-east), Shanklin Village (2 miles north), Chipstead (2 miles south-east), Little Woodcote (2 miles north-east) and Woodcote Green (2 miles north-east). Larger places within reach include Epsom (3 miles west), Horley (10 miles south), Redhill (6 miles south), Ewell (3 miles north-west), Reigate (6 miles south) and Walton-on-Thames (10 miles north-west).
Local landmarks in Banstead
Typical jobs here are in premises near The Woolpack pub, Fames Rough and Priory Preparatory School and the streets around them. For rail, the closest station is Banstead station, about 0.7 miles north-west of the centre. Well-known places in the area include Walton on the Hill (3.6 miles south-west) and The Ashley Centre (3 miles west). For a walk, there’s Colley Hill and Cuddington Meadows.
Do you need AHU cleaning in Banstead?
Planned maintenance often covers belts, motors and filters but not cleaning. That means a unit can tick every service box and still be carrying years of dirt.
If you notice any of these, it’s worth a diagnosis:
- Odours coming through the supply air
- Debris and leaves in the fresh air intake
- Units needing a clean before a new tenant or handover
- Dust built up on fan impellers
School buildings such as St Anne's Catholic Primary School are typically done in the holidays, so classrooms are not disturbed.
Questions to ask before booking
- Whether the whole system is included, or only the parts that are easy to reach
- When they can work, and whether that is outside your opening hours
- Whether the figure could change on the day
- Whether inaccessible sections are listed on the report