Greater London · Air handling unit cleaning
AHU Cleaning in Long Ditton
AHU cleaning in Long Ditton, surveyed first and signed off with a written report and photos. Ask us for a fixed quote.
- Debris and leaves in the fresh air intake
- Units needing a clean before a new tenant or handover
- Blocked condensate drains and slimy trays
AHU cleaning for kitchens and businesses in Long Ditton
Think of an AHU clean as a full check-up for the ventilation. Every section is opened, cleaned and photographed, so the report shows exactly what was done. The work covers drain trays, dampers and louvres and supply and extract fans, and common reasons people get in touch are air handling units with blocked filters and coils clogged with dust and debris.
London buildings often depend on air handling units in plant rooms or on the roof to supply fresh air. In a building in Long Ditton, dust and debris build up in the units and ductwork over time.
It’s worth checking any contractor’s accreditations. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Location
- Long Ditton (KT6)
- Region
- Greater London
- Records
- Photo report after each visit
- Quotes
- A fixed quote up front
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
Aftercare tips
Looking after the system between visits is straightforward, and it makes the next visit easier:
- Make sure condensate is draining away
- Make sure the unit’s access doors open easily
- Keep the certificate and photo report with the plant records
- Flag stale or damp smells in the supply air
Photos in the report cover the filters, coils, drain tray, fan and casing, and note any part we couldn’t get to. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Keep the unit’s doors and panels in working order. Sections that are awkward to open are the ones that get skipped.
Also near Long Ditton
More services for Long Ditton
Common problems we fix in Long Ditton
Filters that aren’t changed or cleaned on time clog up, which cuts the airflow and can let air slip round the filter. After that, the coils and fan collect what the filter should have caught.
These are the problems we see most often:
- Dust built up on fan impellers
- Odours coming through the supply air
- Blocked condensate drains and slimy trays
- Plant that has been serviced but not cleaned
If you run an office near Surbiton station, its supply ductwork can gather dust for years before anyone looks inside.
What your quote should include
- Whether they recommend a next date
- If they look at the system before pricing
- Proof of insurance
- What’s included in the scope, part by part
What AHU cleaning looks like in Long Ditton
Food Standards Agency data includes about 29 schools, colleges and universities, about 45 care, childcare and hospital premises and about 5 hotels and guest houses in Long Ditton and the streets around it, up to about 1.5 miles out. Busy, occupied buildings like these are where clean supply air matters most. Ventilation cleaning in London buildings is usually planned for evenings or weekends. About 1.3 miles east of Long Ditton is Tolworth Hospital, the nearest hospital. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital.
Healthcare buildings such as Tolworth Hospital, about 1.3 miles east, depend on their ventilation; if you manage a surgery, clinic or care home near Long Ditton, yours matters too. If you manage a school such as Long Ditton Infant and Nursery School, ventilation cleaning is best booked for the holidays.
Long Ditton is about 1 mile south-west of Surbiton, in Greater London. Whether your site is in the middle of Long Ditton or further out, we cover AHU cleaning for every kind of premises, from small sites to large estates. Long Ditton is one of 764 places in Greater London where we work for commercial clients. We also work in London, around 12 miles away.
We work across the KT6 postcode area for AHU cleaning and the streets around it. Whether your site is on Pound Close, Fleece Road and St Chads Close or anywhere close by, we can help. We also cover Ditton Hill (1 mile south), Seething Wells (1 mile north), Thames Ditton (1 mile west), Hinchley Wood (1 mile south-west) and Surbiton Park (1 mile north-east). Larger places within reach include London (12 miles north-east), City of Westminster (11 miles north-east), Marylebone (12 miles north-east), Kensington (9 miles north-east), St Pancras (13 miles north-east) and Shoreditch (14 miles north-east).
Around Long Ditton
In Long Ditton, that means kitchens and buildings near Shrewsbury House School, Stokes Field and Raintree pub and the streets around them. The nearest railway station is Surbiton station, about 0.7 miles north-east of the centre. Nearby you will also find Tolworth Hospital (1.3 miles east) and Metropolitan Police Mounted Branch Museum (1.5 miles west). Not far away are The Lake and Kingston Hill Road area.
What we do, step by step
We’re used to working while the site is closed. Evenings, nights and weekends are when much of our work happens, so a kitchen or building can carry on as usual the next day. On site, the work takes anything from half a day for one small unit to several shifts for a plant room full of them. In Long Ditton, as across London, we usually work overnight or at weekends and hand the site back ready to open.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Getting ready for the visit
- Let us know how we reach the system, including roofs, risers and plant rooms
- Clear loose items from the work area
- Tell us the best time to work, such as after service or at a weekend
Get a fixed quote
Need a price for AHU cleaning? Please ring 0345 646 2711 or send us an email and tell us about the site. We will explain what we’d do and send a fixed quote before anything is booked.
Advice
Staff cleaning versus specialist work
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. That’s our job.
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
Fixed quotes for AHU cleaning in Long Ditton
Your quote is based on your site. We consider:
- How easy every part is to reach
- One-off work versus a regular cycle
- Site rules, permits and inductions
- Parking and loading at the site
When the work has to happen, how we reach it and how big the site is all affect the cost. We take each of them into account, and the price is fixed before work begins.
What to send for a quote
When you contact us, it’s useful to have:
- Your last certificate, test record or report
- Wide pictures of the system and the area around it
- Problems your staff have spotted
- Close-ups of filters, grilles, hatches or access panels
For a fixed quote, call us on 0345 646 2711, or email photos with the site type, your trading hours and a short description of the system. A few pictures and your last certificate or report help a lot. You’ll normally have a quote within one working day.
Common questions in Long Ditton
Do you work at weekends in Long Ditton?
Yes. We work evenings, overnight and at weekends. Your customers, staff or residents in Long Ditton needn’t be disturbed. Let us know the hours you are closed and we will book within them.
Is parking a problem for work in Long Ditton?
Tell us where a van can stop near your site in Long Ditton, and about any building rules on loading. Working overnight, as we often do in London, usually makes it simpler.
Can you fix a faulty AHU?
AHU cleaning is what we offer here, not mechanical repairs. If we spot a fault, we note it in the report for your maintenance team to follow up.
What’s TR19?
It’s BESA’s specification and the benchmark insurers, fire officers and EHOs look to. It sets out inspection, cleaning and record keeping, and it takes a risk-based approach.
Will the ventilation be off while you clean?
Yes, for the time we’re working on it. Out-of-hours work is available so the building isn’t left without ventilation when it’s busy.
Can we book visits on a schedule?
Yes. We run scheduled maintenance contracts, set at the interval the system needs. The report from each visit recommends the next date.
What information do you need?
Where the site is, what it is and when it’s open, plus pictures of the system and your last certificate or report if you have one.
Do you clean the ductwork as well?
Yes. We clean supply and extract ductwork to TR19® Air as well. Cleaning the unit and ducts together often makes sense, and we can survey both on the same visit.
When something else is needed
A few issues sit outside what this work can do:
- Ductwork downstream of the unit, which is a separate clean
- Airflow problems caused by the system’s design
- Mechanical faults with motors, belts or bearings
If you are not sure, just give us a ring on 0345 646 2711, or send details by email and we will give you a straight answer before booking.
Parts of the system we cover
- Internal panels
- Heating and cooling coils
- Drain trays
- Supply and extract fans
- Dampers and louvres
- Filter sections
Why deal with it now?
If people in a building in Long Ditton complain about stuffy or smelly air, the AHU is worth looking at. A clean tackles the source instead of masking it. Planning ahead in Long Ditton lets you pick a quiet night rather than lose a busy one.
Several systems or sites on one quote often makes better use of the time. Mention every system or site you need covered and we will price it together.
What you get with us
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Photo reports with every job
- Fixed quotes from a survey or pictures
- Every job surveyed first