Greater London · Air handling unit cleaning
Woolwich AHU cleaning
For AHU cleaning in Woolwich, one call is all it takes, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Rooms that smell stuffy when the system runs
- Drain trays holding standing water
- Coils clogged with dust and debris
Staff cleaning versus specialist work
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. That is our job.
Staff cleaning and specialist work are not the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but they do not reach the grease that builds up further in. That part needs specialist access and equipment.
AHU cleaning for kitchens and businesses in Woolwich
Units vary a lot in size, age and layout, whether it’s a compact unit in a ceiling void or a big unit on the roof. We look at the unit first, from pictures or a site visit, and send you a fixed quote before any cleaning starts. Typical jobs include filters that are clogged or overdue and units needing a clean before a new tenant or handover, across supply and extract fans, heating and cooling coils and drain trays.
Across London, offices, hotels, schools and healthcare buildings rely on mechanical ventilation, much of it supplied through air handling units on roofs or in basements. For a building in Woolwich, dust settles in the units and ducts year after year.
Each visit ends with a written report and pictures, so you have a record of what was done and when. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Place
- Woolwich (SE18, E16, SE7)
- Wider area
- Greater London
- Records
- Written report with pictures
- Price
- Fixed quote, normally within a working day
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
Towns and villages near Woolwich
Also in Woolwich
What we are called out for in Woolwich
Planned maintenance often covers belts, motors and filters but not cleaning. So a unit can be well maintained and still dirty.
Any of these means the system needs a check-up:
- Intake sections clogged with outdoor debris
- Air handling units due a clean after building work
- Stale or musty smells from the ventilation
- Dust built up on fan impellers
Healthcare ventilation, from large hospitals like British Hospital for Mothers and Babies (about 0.5 miles west) to small clinics, depends on clean filters, coils and ducts.
Questions to ask before you book
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- If the quote is a fixed price or an estimate
- Whether the quote shows VAT
- Whether a survey comes first
Woolwich: your questions answered
Do you do school ventilation cleaning in Woolwich in the summer holidays?
Yes, out-of-term visits are normal for schools. The FSA’s register shows about 54 schools and colleges with food registrations within roughly a mile and a half of Woolwich. You can call 0345 646 2711 or drop us a line with the dates the site is empty.
Can the work in Woolwich be done at night or at weekends?
Yes, we can come after you close and finish before you open. Your customers, staff or residents in Woolwich needn’t be disturbed. Your opening times are the first thing we ask for.
What do you do to protect the area?
By covering it before any work starts. The work is kept contained and clean down when we finish.
Are you accredited?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We are fully insured and have been trading since 2009.
Are you insured?
Yes. We carry full insurance and have been trading since 2009.
How far ahead should we book?
It depends on the time you need and how big the job is. Tell us your preferred dates when you ask for a quote, and if it’s an emergency, call us any time.
What does TR19 mean?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping and expects a risk-based approach.
Can one contract cover all our sites?
Yes. One number covers all your sites across London and the South East, with visits on a regular schedule.
Different parts, different methods
Internal casing and panels
Dust settles on every internal surface of the unit. We clean each section from intake to discharge.
Rooftop and plant room units
Units outside are exposed to weather and windblown debris. The intake section gets particular attention.
Honest limits
A few issues sit outside what this work can do:
- Faulty motors, drives or bearings
- The supply and extract ducts, quoted separately
- A system that’s undersized for the building
If in doubt, call us on 0345 646 2711, or send details by email and we’ll say what we think before you book.
Where we work
- Drain trays
- Filter sections
- Dampers and louvres
- Internal panels
- Supply and extract fans
- Heating and cooling coils
Looking after it afterwards
Here’s the after-treatment advice, short and simple:
- Do not ignore odours coming through the grilles
- Keep inspection doors on the unit in good order
- Don’t store bins or materials near the intake
- Look at the condensate drain whenever the unit is serviced
Keep filter changes on schedule between cleans, as that does more than anything to keep the unit clean. Record each change in the maintenance log.
Do not let leaves, litter or stored materials build up near the fresh air intake. What’s near the intake ends up in the unit.
What happens if it’s left?
Cleaning a unit while it only has light dust is quick. Leave it for years and dirt bakes onto coils and casings, particularly where damp has made it stick. A building in Woolwich may have flats or offices above and alongside, and a fault in the system can affect them too.
Working hours, access and the scale of the site all affect the cost. We take each of them into account, and the price is fixed before any work starts.
Why book with us
- One number for every site across the South East and London
- Photo reports with every job
- Accredited under CHAS and SafeContractor, with ISO 9001
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Read our cost guide or our accreditations.
AHU cleaning in Woolwich: local notes
Going by the FSA’s register, there are about 54 schools, colleges and universities, about 50 care, childcare and hospital premises and about 3 hotels and guest houses serving food across Woolwich and its immediate surroundings (about a mile and a half). Where buildings like these have air handling units, filters, coils and drain trays need regular attention. About 0.5 miles west of Woolwich is British Hospital for Mothers and Babies, the nearest hospital. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. Ventilation cleaning in London buildings is usually planned for evenings or weekends.
Workplaces around Woolwich Dockyard station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts. For schools like Mulgrave Primary School, the holidays are the usual time to inspect and clean ventilation.
Woolwich is about 6 miles south-east of Leyton, in Greater London. Wherever you are in the SE18 postcode area, we cover AHU cleaning for commercial sites. Across Greater London, we cover 764 places, and Woolwich is one of them. London is in our area too, about 7 miles from Woolwich.
Work in SE18, E16 and SE7 is surveyed, quoted and booked the same way as anywhere else. That includes premises on Market Street, Woolwich High Street and Beresford Square Market Place and nearby roads. If your site is just outside Woolwich, we cover Plumstead (1 mile east), Charlton (1 mile west), New Charlton (1 mile west), Shooter's Hill (1 mile south) and Kidbrooke (2 miles south-west). Larger places within reach include London (7 miles west), City of Westminster (9 miles west), Marylebone (9 miles west), Kensington (11 miles west), St Pancras (8 miles west) and Shoreditch (7 miles north-west).
Around Woolwich
Locally, jobs take us to businesses close to Woolwich Common, Oasis Academy Silvertown and Oasis Academy Silvertown. Woolwich has its own railway station: Woolwich Dockyard station. Nearby you’ll also find Royal Artillery Museum (0.5 miles north-east) and British Hospital for Mothers and Babies (0.5 miles west). For a walk, there’s Gilbert's Pit.
How it works
Your staff do not need to do much on the day. Someone lets us in at the agreed time and shows us where everything is, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. Security desks and permits-to-work are routine in London, so let us know what your building in Woolwich needs from us.
- First we agree when the unit can be switched off, including evenings or weekends.
- Before cleaning, each section is photographed.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- The fan and drain tray are cleaned and the drain checked.
- We take after pictures and issue the certificate and report.
Getting ready for the visit
- Let us know about permits to work or site inductions
- Arrange a key holder or contact on site
- Dig out any earlier paperwork for the system
How to get a quote
Some systems can be priced from pictures; others need a survey. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, you get a fixed price before any work starts.