Greater London · Air handling unit cleaning
AHU Cleaning in Catford
AHU cleaning in Catford from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Air handling units with blocked filters
- Units that have only ever had filter changes
- Odours coming through the supply air
AHU cleaning for kitchens and businesses in Catford
Drain trays under cooling coils are meant to empty. When the drain blocks, water sits there and the tray turns slimy, in the airstream that feeds the building. Clearing and cleaning the tray is central to every AHU clean. The work covers filter sections, dampers and louvres and heating and cooling coils, and people most often call us about odours coming through the supply air and dirty coils holding back the airflow.
London buildings tend to keep their plant on the roof or below ground, so ventilation cleaning in Catford is usually planned out of hours. Loading and parking are planned with the building first.
The sign-off is always in writing: a written report, dated and illustrated with pictures, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. It shows what was done and what, if anything, couldn’t be reached.
- Location
- Catford (SE6, BR1)
- Wider area
- Greater London
- Paperwork
- Written report with pictures
- Price
- Fixed quote, typically within a working day
- Working hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
What we do, step by step
A visit follows the same order every time: protect the area, make the system safe, carry out the AHU cleaning, tidy up and hand over the paperwork. The visit itself takes from a few hours for a compact unit to a day or more for a large one. A name and number for whoever controls access to the building in Catford saves time on the night.
- We survey the unit from photos or on site and agree what’s included.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters, coils, fan section and casing are cleaned in turn.
- Drain trays are cleared and cleaned and the outlet checked.
- You get a TR19® certificate and a photo report.
Before we arrive
- Tell us the best time to work, such as after service or at a weekend
- Find the previous report, if there is one
- Allow time for equipment near the work to be turned off and cool down
Getting a quote
To get a fixed quote, call 0345 646 2711, or send details by email 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 will typically have a quote within one working day.
Advice
Do you need AHU cleaning in Catford?
Cooling coils create condensation, and that water has to go somewhere. A blocked outlet or a badly sloped tray leaves standing water, and that is where slime and odours start.
The symptoms we are asked about most include:
- Drain trays holding standing water
- Dirty filters cutting the airflow
- Fan sections that haven’t been cleaned in years
- Debris and leaves in the fresh air intake
If you run a surgery, dental practice or care home near Catford, clean ventilation matters as much to you as to a hospital like University Hospital Lewisham (about 0.8 miles north).
Questions to ask before booking
- If they look at the system before pricing
- What hours they’ll be on site
- What records you’ll receive afterwards
- Proof of accreditation you can verify
Different parts, different methods
Heating and cooling coils
Coil fins are close together and catch the dust the filters miss. We clean them with care so the fins aren’t damaged.
Internal casing and panels
We open each section through its doors and close them securely when we’re done, and check every one is shut.
Common questions in Catford
Is parking a problem for work in Catford?
Parking and loading in London need planning, so tell us about bays, permits and building rules when you book. Working overnight, as we often do in London, usually makes it simpler.
Do you work at weekends in Catford?
Yes, out-of-hours work is a big part of what we do. That way a site in Catford does not have to lose a day’s trading. Tell us your opening hours when you ask for a quote.
Do you work in Catford?
Yes. Our area takes in London and the counties of South East England, Catford included.
Do you offer emergency callouts?
Yes, 24/7. Our office is open from 8am to 6pm on weekdays, and the emergency line covers the rest.
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.
How often should an air handling unit be cleaned?
TR19® Air takes a risk-based approach, so it depends on inspection rather than a fixed interval. Each report suggests when the unit should next be looked at.
Which sectors do you work in?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, as well as food production and leisure sites.
What about areas you can’t get to?
We record them 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.
In-house cleaning or a specialist?
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.
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. What they cannot safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
Nearby places to Catford
What else we do in Catford
How we price AHU cleaning
Some jobs are bigger than they look, and some smaller. The main factors:
- The condition of the system
- Whether we need access equipment or extra panels
- The times the site is available
- Any permits to work or inductions
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 any work starts.
Asking for a quote
To help us quote quickly, please include:
- The site address and the type of premises
- Your opening hours and when the area is out of use
- A few general shots of the system
- Any access panels or hatches you can see
Some systems can be priced from pictures; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before any work starts.
Why it’s worth doing now in Catford
Leave an AHU uncleaned and the dirt doesn’t stay put. It’s carried through the ductwork and out of the grilles, so cleaning the ducts without the unit only goes so far. Planning ahead in Catford lets you pick a quiet night rather than lose a busy one.
No two sites are the same, 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 fixed price before any work starts
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Fully insured
- One number for every site across the South East and London
Read what affects the cost or our accreditations and certificates.
What a clean will not put right
An honest diagnosis matters more to us than a booking, so here’s what this work cannot put right:
- Ventilation that was badly designed in the first place
- The supply and extract ducts, quoted separately
- Coils that are corroded or leaking and need replacing
If you are not sure, just ring 0345 646 2711 or drop us a line and we will give you a straight answer.
Where we work
- Dampers and louvres
- Supply and extract fans
- Drain trays
- Heating and cooling coils
- Internal panels
- Filter sections
AHU cleaning around Catford
The FSA’s food hygiene register lists about 46 schools, colleges and universities, about 109 caring premises (care homes, nurseries and hospitals) and about 3 hotels and guest houses with registered kitchens or food service within about 1.5 miles of central Catford. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Getting kit to a London plant room typically means lifts, stairs and an agreed loading slot. About 0.8 miles north of Catford is University Hospital Lewisham, the nearest hospital. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
Wherever a school like Holy Cross Catholic Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time. If you run an office near Catford Bridge station, its supply ductwork can gather dust for years before anyone looks inside.
Catford is about 5 miles east of Streatham, in Greater London. Sites in Catford get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with photos. Our area takes in 764 places across Greater London, from busy centres to quieter spots.
We cover every part of the SE6 and BR1 postcode area for AHU cleaning and the streets around it. Whether your site is on Bargery Road, Penerley Road and Inchmery Road or a nearby road, our technicians can take on the work. Neighbouring places we cover for AHU cleaning include Bellingham (1 mile south-west), Southend (1 mile south-west), Ladywell (1 mile north), Hither Green (1 mile north-east) and Bell Green (1 mile south-west). Larger places within reach include London (5 miles north-west), City of Westminster (8 miles north-west), Marylebone (8 miles north-west), Kensington (9 miles north-west), St Pancras (7 miles north-west) and Shoreditch (6 miles north-west).
Local landmarks in Catford
In Catford, that means kitchens and buildings near The London & Rye pub, Trinity Church of England School and Forster Memorial Park. The closest station to Catford is Catford Bridge station, about 0.5 miles north-west of the centre. Nearby you will also find Greenwich Castle (2.6 miles north) and University Hospital Lewisham (0.8 miles north). For a walk, there’s Downham Woodland Walk and Knight's Hill.