Greater London · Air handling unit cleaning
Air handling unit cleaning in Peaks Hill, Greater London
Our technicians work in Peaks Hill on cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Out-of-hours visits, a fixed quote and a written report with pictures as standard.
- Stale or musty smells from the ventilation
- Dirty fans and fan housings
- Filters that are clogged or overdue
Aftercare tips
Think of this as the after-treatment advice, in brief:
- Store the TR19 paperwork where auditors can find it
- Keep the area around the fresh air intake clear
- Flag stale or damp smells in the supply air
- Make sure the unit’s access doors open easily
If the ductwork hasn’t been cleaned, consider it next. 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, rather than waiting for a problem.
About our AHU cleaning in Peaks Hill
Our AHU cleaning covers sites in Peaks Hill and the rest of Greater London, in offices, schools, hospitals, care homes and retail. Units are cleaned when the site can spare them, often evenings, overnight or weekends. If you’re dealing with condensate trays that won’t empty and leaves and litter drawn into the unit, we can help.
Many London buildings have had their ventilation extended and altered through several fit-outs, with old runs left behind that are hard to reach. In Peaks Hill, as elsewhere, cleaning starts with an inspection of what’s there.
Accreditations are easy to claim and worth checking. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, with full insurance on top.

- Location
- Peaks Hill (CR8, SM6)
- Region
- Greater London
- Records
- Photo report after every visit
- Quotes
- Fixed quote, normally within a working day
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
What AHU cleaning cannot fix
Some problems need a different service or another trade:
- Dirty ducts beyond the unit itself
- Coils that are corroded or leaking and need replacing
- Problems with the unit’s controls or sensors
Not sure which it is? You can give us a ring on 0345 646 2711, or email photos and we’ll tell you honestly.
What we work on in Peaks Hill
- Internal panels
- Drain trays
- Filter sections
- Dampers and louvres
- Heating and cooling coils
- Supply and extract fans
For landlords and multi-site operators
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, which may be the employer, owner, landlord, FM or managing agent. Where responsibility is shared, records matter even more.
For anyone managing more than one site, we can schedule visits across all of them on one quote. Each site gets its own report and pictures, so each one has its own record.
Peaks Hill: your questions answered
Can a school’s ventilation in Peaks Hill be done out of term time?
Yes, out-of-term visits are normal for schools. There are about 24 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Peaks Hill. Just call us on 0345 646 2711, or send details by email with your term dates and we will plan around them.
Can you work in Peaks Hill outside opening hours?
Yes, we can come after you close and finish before you open. Your customers, staff or residents in Peaks Hill needn’t be disturbed. When you phone us on 0345 646 2711 or send us an email, mention when the site is quiet.
Is there a survey before the work?
Yes, always. Diagnosis comes before treatment: the survey tells us what the system needs and how to reach it and the fixed quote is built on it.
How long will the unit be out of action?
Typically the clean takes one overnight shift for many single units, with bigger plant phased. We plan the shutdown around that, including evenings or weekends.
How much does AHU cleaning cost?
It depends on the site, so we quote each one individually. For a quote, phone us on 0345 646 2711 or send us an email with the site type, opening hours and a few photos.
Do you offer maintenance contracts?
Yes. We run scheduled maintenance contracts, with visits at the interval your system needs. The report from each visit recommends the next date.
Do you need to switch the unit off?
Yes. The unit has to be shut down and isolated before it’s opened. We agree the timing with your site team.
Is there a report after cleaning?
Yes. A TR19® certificate and photo report are sent after the clean, including anything we think needs attention.
Why act early in Peaks Hill
A clogged coil or dirty fan makes the unit work harder for the same airflow. That means more wear on the motor and rooms that feel less fresh, and a planned clean is far less disruptive than a breakdown. A busy site in Peaks Hill builds up dirt and wear quickly, so putting it off makes the eventual job larger.
The price reflects the work, not guesswork. That’s why every job is surveyed first, and why the quote is fixed before any work starts.
Why us?
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- A written report with pictures after each visit
- Survey first, then a fixed quote
- Out-of-hours work and a 24/7 emergency line
Take a look at our cost guide and how to check a contractor.
Peaks Hill buildings and their air
There are about 24 schools, colleges and universities, about 74 caring premises (care homes, nurseries and hospitals) and about 6 hotels and guest houses on the FSA’s food hygiene register within 1.5 miles or so of the middle of Peaks Hill. Busy, occupied buildings like these are where clean supply air matters most. Peaks Hill’s nearest hospital, Purley War Memorial Hospital, is about 0.7 miles east. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. Many London buildings have had their ductwork altered through several fit-outs, so an inspection comes first.
Healthcare ventilation, from large hospitals like Purley War Memorial Hospital (about 0.7 miles east) to small clinics, depends on clean filters, coils and ducts. If you manage shops or offices close to Purley station, a TR19® Air inspection shows whether the ductwork needs cleaning. School buildings such as Coloma Convent Girls' School are typically done in the holidays, so classrooms aren’t disturbed.
Peaks Hill is about 1 mile north-west of Purley, in Greater London. Every kind of commercial site in Peaks Hill, AHU cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so trading isn’t interrupted. We cover 764 places across Greater London, from busy centres to quieter spots. Our London page covers sites nearby (11 miles or so).
Every address in CR8 and SM6 is within our area for AHU cleaning, from the main roads to the quietest streets. That includes premises on Furze Lane, Birch Lane and Plough Lane and nearby roads. Peaks Hill is on the A2022, which makes it straightforward for our technicians to reach for AHU cleaning. We also cover Russell Hill (1 mile north), Roundshaw (1 mile north), Woodcote (1 mile south-west), Purley (1 mile south-east) and Woodcote Green (1 mile west). We also work in nearby towns such as London (11 miles north), City of Westminster (12 miles north), Marylebone (12 miles north), Kensington (11 miles north), St Pancras (13 miles north) and Shoreditch (13 miles north).
Around Peaks Hill
In Peaks Hill, that means kitchens and buildings near Carshalton Park, Margaret Roper Catholic Primary School and The Foxley Hatch pub, among other places. The nearest railway station is Purley station, about 0.8 miles south-east. Other landmarks nearby include St George's Walk (2.4 miles north-east) and Croydon Airport Visitor Centre (1 mile north-east). For a walk, there’s Duppas Hill and Roundshaw Downs.
What happens on the day
Each visit runs to the same pattern: protect the area, make the system safe, do the work, tidy up and hand over the paperwork. The visit itself takes one overnight shift for many single units, with bigger plant phased. In Peaks Hill, as across London, we normally 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.
- Dirt and debris are removed from each section.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Before we arrive
- Let us know about permits to work or site inductions
- Clear the space around the work
- Make sure equipment near the work can be switched off and left to cool
Get a fixed quote
Getting a quote does not take long. Call or email with a few details and you’ll normally have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.
Related advice
Staff cleaning versus specialist work
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
What the work involves, part by part
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. Cleaning restores the open path through the fins.
Drain trays
Drain trays can rust and leak over time. We record their condition with photos so you can decide on any repairs.