Surrey · Air handling unit cleaning
Ashtead AHU cleaning
Professional AHU cleaning in and around Ashtead, booked around your opening hours and signed off in writing with photos.
- Plant that has been serviced but not cleaned
- Intake sections clogged with outdoor debris
- Fan sections that haven’t been cleaned in years
AHU cleaning in Ashtead, done properly
The fan pushes every bit of air in the system, so dirt on the impeller and housing gets spread around. Fan, housing and the surrounding panels are cleaned as part of the job, once the unit has been shut down and isolated. The work covers heating and cooling coils, drain trays and filter sections, and people most often call us about dirty filters cutting the airflow and debris and leaves in the fresh air intake.
In Ashtead, ventilation in schools and offices is cleaned when the building is quiet: evenings, weekends or school holidays.
For insurers and inspectors, the record counts. So every job comes with a written report and photos, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Where
- Ashtead (KT21, KT22)
- Region
- Surrey
- Paperwork
- Report and photos after the visit
- Quotes
- A fixed quote up front
- When we work
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
Ventilation in Ashtead buildings
Going by the FSA’s register, there are about 15 schools, colleges and universities and about 8 caring premises (care homes, nurseries and hospitals) serving food within roughly a mile and a half of the centre of Ashtead. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. Ashtead, about 16 miles from central London, is within our usual area. We work evenings, overnight and at weekends, so the visit fits around the site. About 1.7 miles south-east of Ashtead is Headley Court, the nearest hospital. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
If you manage offices or shops near Ashtead station, their ventilation can be inspected and cleaned out of hours. If you run a surgery, dental practice or care home near Ashtead, clean ventilation matters as much to you as to a hospital like Headley Court (about 1.7 miles south-east).
Ashtead is about 2 miles south-west of Epsom, in Surrey. We provide AHU cleaning for businesses, landlords and public buildings in Ashtead and the rest of Surrey. 395 places in Surrey are on our list, large and small. You can also see our page for Guildford, about 12 miles away.
AHU cleaning in KT21 and KT22 is surveyed, quoted and booked the same way as anywhere else. Local streets include The Street, Church Road and Greville Park Road, all of which we cover for AHU cleaning. We also cover the places around Ashtead: Pachesham Park (2 miles north-west), Malden Rushett (2 miles north), Oxshott (3 miles north-west), Barwell (3 miles north) and Stoke D'Abernon (4 miles west). Further out, we also cover Guildford (12 miles west), Woking (12 miles west), Horley (11 miles south-east), Redhill (8 miles south-east), Ewell (4 miles north-east) and Egham (13 miles north-west).
Local landmarks in Ashtead
In Ashtead, that means kitchens and buildings near Ashtead Park, Barnett Wood Infant School and St Andrew's Catholic School, among other places. The closest station to Ashtead is Ashtead station, about 0.6 miles north. Nearby you’ll also find Headley Court (1.7 miles south-east) and Walton on the Hill (3.1 miles south-east). Not far away are Box Hill and The Lake.
Your questions about AHU cleaning in Ashtead
Do you do school ventilation cleaning in Ashtead in the summer holidays?
Yes. The holidays are the usual time for school work. The FSA’s register shows about 15 schools and colleges with food registrations within roughly a mile and a half of Ashtead. You can ring 0345 646 2711 or drop us a line with the dates the site is empty.
Is Ashtead in your area for AHU cleaning?
Yes. Our area runs across London and the South East, Ashtead included. To start, phone us on 0345 646 2711 or use the quote form with a few pictures of the system.
How long will the unit be out of action?
Expect it to take anything from half a day for one small unit to several shifts for a plant room full of them. Size, layout and how dirty it is decide the rest, and we’ll confirm the time when we quote.
What happens if you cannot reach some of it?
Anything we can’t reach goes on the report, with a note of where it is, and we tell you what would make it reachable, such as extra access panels in ductwork.
What types of premises do you cover?
Commercial premises of every kind: kitchens, offices, schools, healthcare, retail, leisure and food production. Work is timed around how each site runs.
Do you need to switch the unit off?
Yes. Cleaning needs the unit off and isolated, so we plan it for a time that suits the building.
What’s included in an AHU clean?
Filters, coils, drain trays, the fan and the internal surfaces are all covered. Filters are cleaned or changed as agreed in the quote.
How much does AHU cleaning cost?
We don’t publish prices, because the cost depends on the job: how big it is, what state it’s in, how we reach it and the working hours. We fix the price before work begins.
Nearby places to Ashtead
Also in Ashtead
Keeping the system healthy
How long the results last depends on use and care. Here’s what we suggest:
- Report stiff or damaged access doors
- Note any water around the unit or leaks below it
- Keep filter changes on time and recorded
- Report musty smells from the vents straight away
The report suggests a date for the next inspection or clean, based on what we found. TR19® Air is risk-based, so the interval depends on the unit and how the building is used.
Make the drain tray part of every maintenance visit. Catching a slow drain early stops standing water building up.
What the work involves, part by part
Internal casing and panels
Loose or damaged linings inside a unit can break up into the airstream. We note any we find in the report.
Heating and cooling coils
Heating and cooling coils have tightly packed fins that trap fine dust. We clean them with care so the fins aren’t damaged.
When to call us in Ashtead
Filters catch most of the dust, but not all of it. What gets through settles on coils, fans and the inside of the casing, a little more each month.
If you notice any of these, it’s worth a diagnosis:
- Air handling units with blocked filters
- Coils clogged with dust and debris
- Air handling units never cleaned inside
- Dirty fans and fan housings
For schools like Parsons Mead School, the holidays are the usual time to inspect and clean ventilation.
Before booking anyone
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Exactly which parts of the system are covered
- When they can work, and whether that’s outside your opening hours
- Whether the quote shows VAT
When it’s something else
A few issues sit outside what this work can do:
- Airflow problems caused by the system’s design
- Mechanical faults with motors, belts or bearings
- Problems with the unit’s controls or sensors
If you’re not sure, just ring 0345 646 2711 or drop us a line and we will give you a straight answer before booking.
What we work on in Ashtead
- Drain trays
- Supply and extract fans
- Dampers and louvres
- Heating and cooling coils
- Filter sections
- Internal panels
In-house cleaning or a specialist?
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We will take a look and give you a fixed quote.
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
What we do, step by step
Your staff don’t need to do much on the day. Someone lets us in at the agreed time and shows us where everything is, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. Photos taken on a phone are usually enough for us to plan a job in Ashtead and give a fixed quote.
- 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, coils, fan section and casing are cleaned in turn.
- Standing water and slime come out of the tray and the drain is checked.
- We close up the unit and send the certificate and before and after photos.
How to prepare
- Mention any parking or loading restrictions
- Allow time for equipment near the work to be turned off and cool down
- Agree a time when the area can be out of use
Get a fixed quote
If you need AHU cleaning in Ashtead, give us a ring on 0345 646 2711, or send details by email. Let us know the site type and the opening hours, and send pictures or your last report if you can. A fixed quote normally follows within one working day.
Advice
Why it’s worth doing now in Ashtead
Dirt left in an air handling unit doesn’t stay in the unit. It moves on into the ductwork and out into the rooms, which is why the unit and the ducts are best cleaned together. The sooner the work is done, the simpler the job for a site in Ashtead.
The cost depends on the size of the system, the condition it’s in and access to every part of it. You get a fixed price before any work starts, so you know where you stand.
Why book with us
- Accredited under CHAS and SafeContractor, with ISO 9001
- Survey first, then a fixed quote
- We are fully insured
- Evenings, overnight and weekends, plus 24/7 emergency callout