Kent · Air handling unit cleaning
Air handling unit cleaning in Brook, Kent
AHU cleaning in Brook from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Dirty fans and fan housings
- Leaves and litter drawn into the unit
- Stale or musty smells from the ventilation
About our AHU cleaning in Brook
An AHU clean is a thorough examination and treatment of the unit. Every section is opened, cleaned and photographed, so the report shows exactly what was done. The work covers heating and cooling coils, dampers and louvres and filter sections, and the jobs we see most are stale or musty smells from the ventilation and units needing a clean before a new tenant or handover.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, where filters and drain trays get forgotten.
Nothing is signed off by word of mouth: a dated report with pictures of the work, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. It shows what was done and what, if anything, couldn’t be reached.

- Where
- Brook (TN25)
- Region
- Kent
- Reporting
- Written report with pictures
- Quote
- Fixed quote, normally within a working day
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
What affects the cost of AHU cleaning
Sites vary more than people expect. What affects the quote:
- Working hours and out-of-hours timing
- How many systems or sites are involved
- The condition of the system
- A single visit or a regular plan
One small site or a whole estate, we price it on the same basis: what needs doing, how we get to it and when. The price is fixed before any work starts.
What to send for a quote
Photos and a few facts are often enough to price the work. Useful things to send:
- Problems your staff have spotted
- Photos showing the whole system and its surroundings
- The site address and the type of premises
- Your opening hours and when the area is out of use
We don’t publish a price list, because no two systems are the same. Instead, we look at your site first, from photos or a survey, then send a fixed quote. To get going, call us on 0345 646 2711 or use the quote form.
More services for Brook
Brook buildings and their air
About 51 miles out from central London, Brook is part of the South East area we work across. Evening, overnight and weekend visits are all possible. William Harvey Hospital is the nearest hospital, about 2.4 miles south-west of Brook. 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 Brook Community Primary School, ventilation cleaning is best booked for the holidays.
Brook is about 4 miles east of Ashford, in Kent. Anywhere in TN25, we can take on AHU cleaning. Brook is one of 922 towns, villages and districts in Kent we cover for AHU cleaning. We also work in Maidstone, about 20 miles from Brook.
All of TN25 is covered for AHU cleaning, from the main roads to the quietest streets. Local streets include The Street, Troy Town Lane and Stonebridge, all of which we cover for AHU cleaning. Close by, we work in Folly Town (1 mile east), Wye (2 miles north-west), Hinxhill (2 miles south-west), Hastingleigh (2 miles east) and Hassell Street (2 miles north-east). Larger places within reach include Ashford (4 miles west), Canterbury (10 miles north-east), Dover (15 miles east), Folkestone (11 miles south-east), Whitstable (14 miles north) and Faversham (11 miles north).
Local landmarks in Brook
We work in commercial kitchens and buildings around Wye School, among other places. The nearest railway station is Wye station, about 2 miles north-west. Well-known places in the area include William Harvey Hospital (2.4 miles south-west) and County Square (3.9 miles west). For a walk, there’s Hatch Park.
Keeping the system healthy
Here’s the after-treatment advice, in brief:
- Report stiff or damaged access doors
- Plan the next inspection before the last report gets filed away
- Watch for drips or damp patches near the plant
- Store the TR19 paperwork where auditors can find it
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.
Make the drain tray part of every maintenance visit. A drain that is cleared early never gets to the slime stage.
The process
At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and the same goes into the written report. All told, the work takes one overnight shift for many single units, with bigger plant phased. For a village or hamlet like Brook, tell us about narrow lanes, gates and parking when you book.
- First we agree when the unit can be switched off, including evenings or weekends.
- Before cleaning, each section is photographed.
- We work through the unit from the intake to the outlet.
- The fan and drain tray are cleaned and the drain checked.
- After photos are taken and the certificate issued.
How to prepare
- Mention any sign-in, permit or induction we need
- Make sure someone can let us in and lock up afterwards
- Have your last certificate or report to hand
Ask for a quote
Every quote begins with a look at the system, 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.
Related advice
What AHU cleaning can’t fix
AHU cleaning can’t fix everything, and we’d rather say so up front. It doesn’t solve:
- Ductwork downstream of the unit, which is a separate clean
- A system that’s undersized for the building
- Building management system faults
If you’re not sure, just call us on 0345 646 2711, or email photos and we will give you a straight answer.
What we work on in Brook
- Internal panels
- Dampers and louvres
- Heating and cooling coils
- Filter sections
- Supply and extract fans
- Drain trays
Do you need AHU cleaning in Brook?
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. Most of it lands at the intake and the first stage of filters, and the finer material travels on.
Clients normally contact us when they notice something like this:
- Drain trays holding standing water
- Rooms that smell stuffy when the system runs
- Leaves and litter drawn into the unit
- Units that have only ever had filter changes
William Harvey Hospital, about 2.4 miles south-west, is the nearest hospital to Brook, and healthcare sites of every size need their supply air kept clean.
What to look for in a quote
- Whether the quote is based on a survey or pictures
- How areas they cannot reach will be recorded
- Exactly which parts of the system are covered
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
Common questions in Brook
Do you work at weekends in Brook?
Yes, evening, overnight and weekend work is normal for us. That way a site in Brook does not have to lose a day’s trading. Just give us a ring on 0345 646 2711, or email photos with your opening times and we will plan around them.
Do you cover Brook for AHU cleaning?
Yes, we work in Brook and the places around it. A fixed quote usually follows within one working day of the survey details.
Is there a report after cleaning?
Yes. Every clean comes with a TR19® certificate and a photo report. They’re worth keeping with the plant records.
Are you accredited?
We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we are fully insured.
What if parts of the system can’t be reached?
They’re listed in the report, never skipped quietly. The report says which parts couldn’t be reached and why, and we can quote to improve the access.
How far ahead should we book?
Book as early as you can for planned work, particularly if your next visit is nearly due. Emergencies are different, because our line is open 24/7.
Do you look at the system first?
Yes. Every job is surveyed first, either from pictures and details you send or on a site visit. A fixed quote follows.
Will you repair the fan or motor?
The clean includes noting faults, but repairs sit with your maintenance contractor, with pictures where it helps.
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 fault that closes a site in a village like Brook affects everyone who depends on it.
What you pay depends on how big the system is, what state it’s in and access to every part of it. We give you a fixed price before work begins, so you know where you stand.
Why us?
- We diagnose before we treat
- One number for every site across the South East and London
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Fixed quotes from a survey or photos
Part by part
Internal casing and panels
We open each section through its doors and close them securely when we are done, and check every one is shut.
Rooftop and plant room units
Units outside are exposed to weather and windblown debris. We clean the intake and first stage of filters along with the rest.