Surrey · Air handling unit cleaning
AHU Cleaning in Selsdon
AHU cleaning for Selsdon and the surrounding area: diagnosis first, then a fixed quote, the work and a report with photos. Call for a fixed quote.
- Plant that needs cleaning after a refit
- Dirty filters cutting the airflow
- Rooms that smell stuffy when the system runs
Looking after it afterwards
Think of this as the after-treatment advice, in brief:
- Report stiff or damaged access doors
- Note any water around the unit or leaks below it
- Keep filter changes on time and recorded
- Make sure condensate is draining away
You receive a TR19® certificate and a photo report after the clean. They belong in the plant or maintenance log.
Make sure access doors and panels on the unit open easily. Sections that are awkward to open are the ones that get skipped.
About our AHU cleaning in Selsdon
Where a building in Selsdon has had little more than filter changes, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full AHU clean takes in the whole unit. If you are dealing with intake sections clogged with outdoor debris and filters that are clogged or overdue, we can put it right, from dampers and louvres, filter sections and drain trays onwards.
Visits to a place like Selsdon are fitted around opening hours. The work is the same as in any town: inspect, clean, record.
Accreditations are easy to claim and worth checking. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Where
- Selsdon (CR2, CR0)
- Wider area
- Surrey
- Reporting
- Photo report after every visit
- Quote
- A fixed quote up front
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
How the job changes from site to site
Internal casing and panels
Loose or damaged linings inside a unit can break up into the airstream. Anything like that is recorded with pictures.
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.
What we do, step by step
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Equipment that has to be off is switched off and allowed to cool before any work starts, and floors and nearby surfaces are sheeted. On site, it takes a single shift for a typical unit, longer for large or heavily soiled ones. In a smaller place like Selsdon, parking is rarely the issue, but tell us about gates, roof access and opening hours.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before photos of each section of the unit.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- The fan and drain tray are cleaned and the drain checked.
- After photos are taken and the certificate issued.
Getting ready for the visit
- Mention any locked doors, roof access or ceiling voids
- Make sure someone can let us in and lock up afterwards
- Dig out any earlier paperwork for the system
Get a fixed quote
If you need AHU cleaning in Selsdon, ring 0345 646 2711 or drop us a line. Let us know the site type and the opening hours, plus pictures or the previous report if they’re to hand. A fixed quote usually follows within one working day.
Related advice
Fixed quotes for AHU cleaning in Selsdon
Some jobs are bigger than they look, and some smaller. The main factors:
- The times the site is available
- What state the system is in
- The number of sites or systems
- Site rules, permits and inductions
Combining work into one visit or one programme often makes better use of the time. Tell us about everything you’d like looked at and we’ll price it together.
What we need to know
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- Where the site is and what kind of site it is
- The roof, plant room or outside wall the system runs to
- Your last certificate, test record or report
- Detail shots of panels, filters and grilles
Quoting starts with a diagnosis, from your photos and details or, where that isn’t enough, a survey on site. After that, you get a fixed price for the work, before we start.
Selsdon questions
Will you come out to Selsdon?
Yes. Villages and rural sites across the South East are part of our work, Selsdon included. The journey is planned ahead, so a few details about the route help.
Do you work overnight in Selsdon?
Yes, evening, overnight and weekend work is normal for us. That way a site in Selsdon does not have to lose a day’s trading. Just call us on 0345 646 2711, or send details by email with your opening times and we will plan around them.
Do you repair air handling units?
We clean the unit and flag faults rather than repair them, with the details in the report.
What should I send you?
A short description and a few pictures, with the address and opening hours. If we need more, we will ask.
Do you work with multi-site operators?
Yes. One number covers all your sites across London and the South East, with visits on a regular schedule.
What does TR19 mean?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Do you give a certificate after the clean?
Yes. A TR19® certificate and photo report are sent after the clean, with any faults we noticed.
How far ahead should we book?
Earlier is better, especially for out-of-hours work. We usually quote within one working day, and there’s a 24/7 line for emergencies.
When something else is needed
Before booking, it helps to know what’s not included:
- A system that is undersized for the building
- The supply and extract ducts, quoted separately
- Coils that are corroded or leaking and need replacing
If in doubt, phone us on 0345 646 2711 or use the quote form and we’ll say what we think before you book.
What we work on in Selsdon
- Filter sections
- Supply and extract fans
- Drain trays
- Dampers and louvres
- Heating and cooling coils
- Internal panels
Towns and villages near Selsdon
Other services in Selsdon
AHU cleaning in Selsdon: local notes
Food Standards Agency records list about 14 schools, colleges and universities and about 27 care, childcare and hospital premises registered as food businesses in and around Selsdon, up to about a mile and a half out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. We cover Selsdon, about 11 miles from central London, as part of our work across London and the South East. A survey and a fixed quote come first, then the visit at a time that suits you. For Selsdon, the closest hospital is Warlingham Park Hospital, roughly 2.1 miles south-east. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
If you manage a school such as Selsdon Primary and Nursery School, ventilation cleaning is best booked for the holidays. Warlingham Park Hospital, about 2.1 miles south-east, is the nearest hospital to Selsdon, and healthcare sites of every size need their supply air kept clean.
Selsdon is about 2 miles south-east of Croydon, in Surrey. Every kind of commercial site in Selsdon, AHU cleaning is something we can help with. We can work out of hours so the site keeps running. Our area takes in 395 places across Surrey, from busy centres to quieter spots. London is in our area too, around 11 miles away.
All of CR2 and CR0 is covered for AHU cleaning, from busy streets to back roads. If you need AHU cleaning at premises on York Road, Byron Road and Abbey Road or anywhere close by, we can help. We also cover the places around Selsdon: Forestdale (1 mile east), Addington (1 mile north-east), Sanderstead (1 mile south-west), Coombe (1 mile north-west) and Farleigh (2 miles south-east). Further out, we also cover Epsom (9 miles west), Horley (13 miles south-west), Redhill (9 miles south-west), Ewell (9 miles west), Reigate (10 miles south-west) and Caterham (4 miles south).
Near you in Selsdon
We work in commercial kitchens and buildings around The Sir Julian Huxley pub, The Quest Academy and Littleheath Woods, among other places. For rail, the closest station is Sanderstead station, about 1.7 miles west. Other landmarks nearby include St George's Walk (2.7 miles north-west) and Croydon Airport Visitor Centre (2.9 miles west). The countryside around Selsdon includes Duppas Hill and Bramley Bank.
Why it’s worth doing now in Selsdon
Tenants, auditors and owners may want proof that the air handling plant is kept clean. A TR19® certificate and photo report give you that, for audits, tenants or your own peace of mind. Booking now means the visit to Selsdon is planned around you, not forced by a breakdown.
We do not list prices on the website, because each job is priced on what it involves. Call for a fixed quote, and we’ll explain what it covers.
Why us?
- A single point of contact for sites across the South East and London
- CHAS and SafeContractor accredited, with ISO 9001
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- In business since 2009
Take a look at our cost guide and how to check a contractor.
Managing agents and facilities teams in Selsdon
If you look after several sites, we can schedule visits across all of them on one quote. Every building has its own written report, so records stay tidy.
We regularly work with managing agents. Tell us the site, the work and the access arrangements and we will come back with a fixed quote.