Surrey · Air handling unit cleaning
Thames Ditton AHU cleaning
For air handling unit cleaning in Thames Ditton, one call is all it takes: survey, fixed quote, work and sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Plant that has been serviced but not cleaned
- Coils clogged with dust and debris
- Plant that needs cleaning after a refit
AHU cleaning for kitchens and businesses in Thames Ditton
All the building’s air passes through the fan, 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. We are often asked to deal with units that have only ever had filter changes and dust-coated heating and cooling coils, on drain trays, internal panels and supply and extract fans.
For a building near Thames Ditton, the visit is planned around how it’s used, and the journey is planned ahead. The method does not change: inspect first, clean, then record what was done.
The sign-off is always in writing: a written report, dated and illustrated with pictures, 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.
- Location
- Thames Ditton (KT7)
- Wider area
- Surrey
- Paperwork
- Report and photos after the visit
- Price
- Fixed quote, normally within a working day
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Checked
- 30 October 2026
How we price AHU cleaning
We do not publish a price list, because sites vary so much. The quote depends on:
- How easy every part is to reach
- The size of the system
- The number of sites or systems
- Travel, parking and unloading
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, which can make the next visit longer. If you are not sure what’s needed, give us a ring on 0345 646 2711, or send details by email and we’ll give you an honest view and a fixed quote.
What to send for a quote
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- Detail shots of panels, filters and grilles
- Where the site is and what kind of site it is
- When the site is open and when it’s quiet
- The paperwork from the last visit, if you have it
Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and we can price many jobs without a visit.
Also near Thames Ditton
What else we do in Thames Ditton
What the work involves, part by part
Filters
Dirty filters cut airflow and let dirt slip past their frames. We clean the frames and rails so the filters sit tight.
Fans and fan sections
Dust on a fan impeller adds weight and wear. Cleaning keeps it running as intended.
What happens on the day
We start by comparing what we find with the survey or your pictures. Anything unexpected is raised with you before we go further. After that, the work takes from a few hours for a compact unit to a day or more for a large one. For a place like Thames Ditton, we load the van from the survey notes so the work can be done in one visit where possible.
- We look at the unit and the plant area during the survey.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- Coils and trays are cleaned and the condensate drain cleared.
- The unit is closed up and handed back, with a report to follow.
How to prepare
- Tell us about site rules, permits or sign-in
- Agree a time when the area can be out of use
- Find the previous report, if there is one
Get a fixed quote
Some systems can be priced from photos; others need a survey. 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.
Read more
Thames Ditton buildings and their air
Going by the FSA’s register, there are about 13 schools, colleges and universities and about 33 hospitals, care homes and childcare premises serving food within about 1.5 miles of central Thames Ditton. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. We cover Thames Ditton, about 13 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. About 2 miles east of Thames Ditton is Tolworth Hospital, the nearest hospital. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Workplaces around Thames Ditton station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts. If you manage a school such as Thames Ditton Junior School, ventilation cleaning is best booked for the holidays. Healthcare ventilation, from large hospitals like Tolworth Hospital (about 2 miles east) to small clinics, depends on clean filters, coils and ducts.
Thames Ditton is about 1 mile west of Surbiton, in Surrey. We provide AHU cleaning for businesses, landlords and public buildings in Thames Ditton and the rest of Surrey. Thames Ditton is one of 395 places in Surrey where we work for AHU cleaning. There’s also a page for London, about 13 miles away.
All of KT7 is within our area for AHU cleaning, from the main roads to the quietest streets. Streets in the area include High Street, Watts Road and Ditton Close, and we cover them all for AHU cleaning. Main roads around Thames Ditton include the A307, which makes travel easy for evening and night visits. Other places close to Thames Ditton include Weston Green (1 mile south-west), Long Ditton (1 mile east), Hinchley Wood (1 mile south), Seething Wells (1 mile east) and Molesey (1 mile north-west). Larger places within reach include Guildford (14 miles south-west), Woking (12 miles south-west), Epsom (5 miles south-east), Redhill (13 miles south-east), Ewell (4 miles south-east) and Egham (10 miles west).
What’s near Thames Ditton
Locally, jobs take us to businesses close to Esher College, George and Dragon pub and Shrewsbury House School and the streets around them. There’s a railway station in Thames Ditton itself: Thames Ditton station. A little further out are Metropolitan Police Mounted Branch Museum (0.8 miles west) and Tolworth Hospital (2 miles east). For a walk, there’s The Wood and The Lake.
Looking after it afterwards
Here’s the after-treatment advice, short and simple:
- File each AHU report in the maintenance log
- Keep inspection doors on the unit in good order
- Report musty smells from the vents right away
- Check the drain tray is emptying during routine visits
The ducts served by the unit may need attention too. Cleaning the unit and ducts together gives the best result, and we can survey both.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air instead of leaving it to guesswork.
What happens if it’s left?
A slimy drain tray only gets worse. Leave it and you risk overflows, leaks into the space below and odours carried round the building. Clearing it now is a much smaller job. Light use slows the build-up but doesn’t stop it.
Every site is different, so we price each one individually. Size, access, the condition of the system and when we can work all play a part.
Why book with us
- A written report with photos after every visit
- A single point of contact for sites across the South East and London
- Out-of-hours work and a 24/7 emergency line
- Fixed quotes, typically within one working day
Take a look at what affects the cost and our accreditations.
Staff cleaning versus specialist work
Staff cleaning and specialist work aren’t the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.
When it’s something else
We’ll always give you a straight diagnosis, so here’s what AHU cleaning will not do:
- Faulty motors, drives or bearings
- Problems with the unit’s controls or sensors
- Coils that are corroded or leaking and need replacing
If in doubt, call us on 0345 646 2711, or email photos and we’ll say what we think before booking.
Where we work
- Drain trays
- Supply and extract fans
- Dampers and louvres
- Internal panels
- Filter sections
- Heating and cooling coils
Your questions about AHU cleaning in Thames Ditton
Can you work in Thames Ditton outside opening hours?
Yes. We work evenings, overnight and at weekends. That way a site in Thames Ditton doesn’t have to lose a day’s trading. Just call 0345 646 2711 or use the quote form with your opening times and we’ll plan around them.
Do you work in villages like Thames Ditton?
Yes, smaller places are covered as well as towns. Let us know about access, parking and anything unusual about getting there when you book.
Is there a survey before the work?
Yes. For many sites, pictures and a few details are enough, and larger or hidden systems get a visit.
What happens to the waste?
It leaves the site with us at the end of the visit. While we work, it’s kept contained to keep the area clean.
What does TR19 mean?
BESA’s ventilation hygiene specification, with two parts that matter most here: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It is not legislation, but it’s the standard people check against.
Is there a report after cleaning?
Yes, both a certificate and a report with pictures. The report also suggests when the unit should next be inspected.
Do you repair air handling units?
Motors, belts, controls and coils that need repair are a job for your maintenance contractor. We clean the unit and report anything we see that needs attention.
Can we book visits on a schedule?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, depending on what the system needs.