Surrey · Air handling unit cleaning
Air handling unit cleaning in Esher, Surrey
We cover Esher for air handling unit cleaning. Out-of-hours visits, a fixed quote and a written report with photos as standard.
- Odours coming through the supply air
- Dirty coils holding back the airflow
- Air handling units with blocked filters
How we handle AHU cleaning in Esher
Think of an AHU clean as a full check-up for the ventilation. We look inside each section, clean what we find and record it with photos, so you can see the unit’s condition for yourself. The work covers drain trays, supply and extract fans and internal panels, and the jobs we see most are stale or musty smells from the ventilation and plant that needs cleaning after a refit.
Smaller buildings around Esher often keep their ventilation units in a roof void or plant cupboard, where they’re easy to forget. Every unit, large or small, has filters, coils and a drain tray to keep clean.
Nothing is signed off by word of mouth: a dated report with photos of the work, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. It shows what was done and what, if anything, couldn’t be reached.
- Where
- Esher (KT10, KT7, KT8)
- Region
- Surrey
- Paperwork
- Report and photos after the visit
- Quote
- A fixed quote up front
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
Between visits
Good habits slow the build-up between visits. Our tips:
- Report water on the plant room floor
- Stick to the filter change plan
- Flag stale or damp smells in the supply air
- Keep the certificate and photo report with the plant records
If the ductwork hasn’t been cleaned, consider it next. Cleaning the unit and ducts together gives the best result, and we can survey both.
Regular inspection under TR19® Air shows when cleaning is due, rather than waiting for a problem.
What your team can do, and what needs us
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, they should report it rather than try to fix it. We’ll take a look and send you a fixed quote.
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.
Common questions in Esher
Do you work overnight in Esher?
Yes, we can come after you close and finish before you open. The work in Esher can fit around your hours. Let us know the hours you’re closed and we’ll book within them.
Do you do school ventilation cleaning in Esher in the summer holidays?
Yes, out-of-term visits are normal for schools. With about 7 schools and colleges on the FSA’s register within roughly a mile and a half of Esher, it pays to plan holiday dates ahead. You can call 0345 646 2711, or send details by email with the dates the site is empty.
Does the AHU have to be shut down for cleaning?
Yes. The fan must be stopped and the unit isolated, and we time the work to suit the site.
Is a quote from pictures possible?
Usually, yes. Send a few wide photos plus close-ups of panels, filters or grilles, and a fixed quote usually follows within one working day. If photos aren’t enough, we will survey first.
Is there a survey before the work?
Yes, always. Diagnosis comes before treatment: the survey tells us what the system needs and how to reach it and the fixed quote is built on it.
Is there a report after cleaning?
Yes. A TR19® certificate and photo report are sent after the clean, with any faults we noticed.
How much notice should we give?
The more notice, the better, especially for out-of-hours work. We normally quote within one working day, and emergencies are covered by our 24/7 line.
Can you look after several sites?
Yes. We work across South East England and London, so sites at different addresses can be planned together on one programme. Each site gets its own report and photos.
Places near Esher
What else we do in Esher
How it works
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Before we leave, the area is tidied and the paperwork follows. In a place like Esher, we fit the visit around your hours.
- First the unit is surveyed, from photos or a visit, and the scope agreed.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Drain trays are cleared and cleaned and the outlet checked.
- We close up the unit and send the certificate and before and after pictures.
Preparing for the visit
- Dig out any earlier paperwork for the system
- Mention any sign-in, permit or induction we need
- Allow time for equipment near the work to be turned off and cool down
Get a fixed quote
Want a quote for AHU cleaning? Please phone us on 0345 646 2711 or use the quote form and tell us about the site. We will talk you through the work and send you a fixed quote before you commit to anything.
Read more
Ventilation in Esher buildings
There are about 7 schools, colleges and universities and about 7 caring premises (care homes, nurseries and hospitals) on the FSA’s food hygiene register in Esher and the streets around it, up to about 1.5 miles out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. Esher’s nearest hospital, No. 2 New Zealand General Hospital, is about 2.9 miles north-west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. At about 15 miles from central London, Esher sits well inside the area we cover. We work evenings, overnight and at weekends, so the visit fits around the site.
If you manage shops or offices close to Esher station, a TR19® Air inspection shows whether the ductwork needs cleaning. Classrooms and halls at schools such as Milbourne Lodge School are easiest to work in when pupils are away.
Esher is about 5 miles north-west of Epsom, in Surrey. We carry out AHU cleaning for commercial premises of every kind in Esher and the rest of Surrey. Esher is one of 395 places in Surrey where we work for AHU cleaning. You can also see our page for Guildford, about 12 miles away.
All of KT10, KT7 and KT8 is within our area for AHU cleaning, from busy streets to back roads. We cover sites on High Street, Station Road and Warren Close and nearby roads. You’ll find Esher on the A244 and A307, which makes it straightforward for our technicians to reach for out-of-hours visits. Nearby, we also carry out AHU cleaning in West End (1 mile south-west), Lower Green (1 mile north), Hinchley Wood (1 mile east), Claygate (1 mile south-east) and Weston Green (1 mile north-east). Further out, we also cover Guildford (12 miles south-west), Woking (10 miles west), Epsom (5 miles south-east), Redhill (12 miles south-east), Ewell (5 miles east) and Egham (9 miles north-west).
Around Esher
Locally, jobs take us to businesses close to Albert Arms, Esher Church of England High School and Claremont Park and the streets around them. For rail, the closest station is Esher station, roughly 0.8 miles north-east. A little further out are Chessington Castle Hill (3.2 miles east) and No. 2 New Zealand General Hospital (2.9 miles north-west). Not far away are Jubilee Wood and The Lake.
Common problems we fix in Esher
Filters that aren’t changed or cleaned on time clog up, cutting airflow and sometimes letting dirty air bypass them altogether. After that, the coils and fan collect what the filter should have caught.
The symptoms we are asked about most are:
- Odours coming through the supply air
- Dust built up on fan impellers
- Units that have only ever had filter changes
- Leaves and litter drawn into the unit
Healthcare ventilation, from large hospitals like No. 2 New Zealand General Hospital (about 2.9 miles north-west) to small clinics, depends on clean filters, coils and ducts.
What your quote should include
- Whether the quote shows VAT
- Whether the work can be done while the site is closed
- What happens if part of the system cannot be accessed
- Whether a written report and photos are included
When something else is needed
We will always give you a straight diagnosis, so here’s what this work can’t put right:
- Faulty motors, drives or bearings
- Controls and BMS settings that run the unit
- Dirty ducts beyond the unit itself
Not sure which it is? You can call us on 0345 646 2711 or send us an email and we will tell you honestly before you book.
What we work on in Esher
- Filter sections
- Heating and cooling coils
- Supply and extract fans
- Dampers and louvres
- Drain trays
- Internal panels
Multi-site and managed buildings
Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We’re happy to deal with either side, and the report can go to both.
Running several sites is easier with one contractor. We work across London and the South East, so visits at different addresses can be planned together and kept to a regular schedule.
How the job changes from site to site
Drain trays
Condensate from the coil drips into a tray beneath it. We clear standing water, clean out slime and check the outlet is draining.
Fans and fan sections
The fan section is cleaned with the unit switched off and isolated in agreement with the site.