Windsor and Maidenhead · Air handling unit cleaning
Air handling unit cleaning in Cookham Dean, Windsor and Maidenhead
One call covers cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Cookham Dean: survey, fixed quote, work and sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Air handling units with blocked filters
- Plant that needs cleaning after a refit
- Dust-coated heating and cooling coils
About our AHU cleaning in Cookham Dean
Drain trays under cooling coils are meant to empty. When the drain blocks, water sits there and the tray turns slimy, right in the path of the air going into the building. Clearing and cleaning the tray is central to every AHU clean. The work covers filter sections, supply and extract fans and internal panels, and the jobs we see most are air handling units with blocked filters and units needing a clean before a new tenant or handover.
In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.
We’re CHAS and SafeContractor accredited, we hold ISO 9001 and we are fully insured. We are also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we’ve been trading since 2009.
- Place
- Cookham Dean (SL6)
- Region
- Windsor and Maidenhead
- Records
- Written report with pictures
- Price
- Fixed quote, usually within a working day
- Working hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
FAQs for Cookham Dean
Do you clean school ventilation in Cookham Dean in the holidays?
Yes. The holidays are the usual time for school work. Food Standards Agency records list about 7 schools, colleges and universities with registered kitchens within about a mile and a half of Cookham Dean. Tell us your holiday dates and we’ll book the visit for when the site is empty.
Can you get to a site in Cookham Dean?
Yes, we work in villages as well as towns, and Cookham Dean is covered. Photos of the system and directions to the site help us plan the visit.
Are you fully insured?
Yes. We carry full insurance, and we have been trading since 2009.
Is there a survey before the work?
Yes, always. We diagnose before we treat: the survey shows what needs doing and what access we need and the fixed quote is built on it.
Can you price the work without visiting?
In many cases, yes. Photos of the system and the access, plus your opening hours and last report, are often enough. Larger or hidden systems need a survey on site first.
How do you protect the area?
With sheeting and covers, before anything else happens. The work is kept contained and leave the area clean.
Can you fix a faulty AHU?
AHU cleaning is what we offer here, not mechanical repairs. If we spot a fault, we note it in the report so your maintenance contractor can deal with it.
What accreditations do you have?
Our accreditations are CHAS, SafeContractor and ISO 9001, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.
Why deal with it now?
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 clean on your terms beats a breakdown on nobody’s. Our emergency line runs 24/7, but a planned visit to Cookham Dean is calmer for everyone.
When the work has to happen, how we reach it and how big the site is can all change the price. Each of those is built into the quote and give you a fixed price before work begins.
Why Cookham Dean businesses choose us
- Ventilation hygiene specialists since 2009
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- CHAS and SafeContractor accredited, with ISO 9001
- Every job surveyed first
Take a look at how cleaning jobs are priced and how to check a contractor.
Cookham Dean buildings and their air
The FSA’s food hygiene register lists about 7 schools, colleges and universities, about 7 caring premises (care homes, nurseries and hospitals) and about 4 hotels and guest houses with registered kitchens or food service across Cookham Dean and its immediate surroundings (about a mile and a half). Busy, occupied buildings like these are where clean supply air matters most. About 1.6 miles north-west of Cookham Dean is Marlow Community Hospital, the nearest hospital. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. About 28 miles out from central London, Cookham Dean is part of the South East area we work across. We work evenings, overnight and at weekends, so the visit fits around the site.
Wherever a school like Cookham Dean CofE Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Cookham Dean is about 2 miles south-east of Marlow, in Windsor and Maidenhead. Whether your site is in the middle of Cookham Dean or further out, we cover AHU cleaning for every kind of premises, from a single unit to a large public building. Our area takes in 57 places across Windsor and Maidenhead, large and small. We also work in Reading, around 12 miles away.
Here we cover the SL6 postcode area for AHU cleaning. Whether your site is on Kings Lane, Popes Lane and Hills Lane or a nearby road, our technicians can take on the work. We also cover Cookham (1 mile east), Bisham (1 mile west), Furze Platt (2 miles south), Marlow (2 miles north-west) and Temple (2 miles west). We also work in nearby towns such as Maidenhead (3 miles south), Windsor (7 miles south-east), Boyn Hill (3 miles south), North Ascot (10 miles south), Dedworth (7 miles south-east) and Broomhall (12 miles south-east).
Around Cookham Dean
Locally, jobs take us to businesses close to Jolly Farmer pub and Furze Platt Senior School. The nearest railway station is Cookham station, roughly 1 mile east of the centre. Other landmarks nearby include Marlow Community Hospital (1.6 miles north-west) and Marlow Museum (1.5 miles north-west). Green spaces nearby include Taplow Lake and Carpenter's Wood.
Between visits
Aftercare is simple, and it helps at the next visit:
- Change filters on schedule and log each change
- Diary the inspection date recommended in the report
- Flag stale or damp smells in the supply air
- Make sure condensate is draining away
Once the clean is done, we send a TR19® certificate and a report with before and after pictures. Keep both with the building’s maintenance records.
Change or clean filters on time. Overloaded filters let more dirt through to the coils and fan.
What affects the cost of AHU cleaning
The diagnosis comes before the price. The main factors are:
- What state the system is in
- Where the site is and how we reach it
- The size of the system
- Whether it’s a one-off visit or part of a schedule
Several systems or sites on one quote can make for a more efficient booking. Mention every system or site you need covered and we will price it together.
What we need to know
When you contact us, it’s useful to have:
- The times we could work without disrupting the site
- The site address and the type of premises
- The roof, plant room or outside wall the system runs to
- Your last certificate, test record or report
For AHU cleaning in Cookham Dean, call us on 0345 646 2711, or send details by email. Tell us what kind of premises it is and when it’s open, plus photos or the previous report if they’re to hand. A fixed quote normally follows within one working day.
Multi-site and managed buildings
Running several sites is easier with one contractor. We work across London and the South East, so a run of sites can go into one programme and kept on a regular cycle.
We regularly work with managing agents. Send the address, what’s needed and how access works, and we’ll send a fixed quote.
How it works
We are used to working while the site is closed. A lot of visits happen overnight or at weekends, so the site can open as normal afterwards. The visit itself takes a single shift for a typical unit, longer for large or heavily soiled ones. The timing of a visit to Cookham Dean is set by you, and the travel is our side of the planning.
- We agree a shutdown window that suits the building.
- We take before photos of each section of the unit.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- We take after pictures and issue the certificate and report.
Before we arrive
- Dig out any earlier paperwork for the system
- Let us know about permits to work or site inductions
- Let us know how we reach the system, including roofs, risers and plant rooms
Get a fixed quote
Here’s what helps us quote: where the site is, what it is and its opening hours, a few pictures and the last certificate or report, if there is one. Then ring 0345 646 2711, or send details by email.
Advice
What we are called out for in Cookham Dean
Filters catch most of the dust, but not all of it. What gets through settles on coils, fans and the inside of the casing, a little more each month.
These are the problems we see most often:
- Intake sections clogged with outdoor debris
- Stale or musty smells from the ventilation
- Dust-coated heating and cooling coils
- Air handling units never cleaned inside
Hospitals such as Marlow Community Hospital (about 1.6 miles north-west) show how much a building can rely on clean ventilation, and smaller healthcare sites near Cookham Dean are no different.
Questions to ask before you book
- Whether inaccessible sections are listed on the report
- How VAT is shown on the quote
- Whether a survey comes first
- What’s included in the scope, part by part
Also near Cookham Dean
Other services in Cookham Dean
What the work involves, part by part
Internal casing and panels
Damaged internal linings or loose panels can shed material into the air. We note any we find in the report.
Fans and fan sections
The fan moves all of the unit’s air, so dirt on it gets spread around. The impeller, its housing and the fan chamber are cleaned.