Windsor and Maidenhead · Air handling unit cleaning
Air handling unit cleaning in Cold Harbour, Windsor and Maidenhead
Air handling unit cleaning for commercial sites in Cold Harbour and across Windsor and Maidenhead. CHAS, SafeContractor and ISO 9001, and fully insured.
- Debris and leaves in the fresh air intake
- Blocked condensate drains and slimy trays
- Odours coming through the supply air
Multi-site and managed buildings
We regularly work with managing agents. Tell us the site, the work and the access arrangements, and we will send a fixed quote.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
AHU cleaning in Cold Harbour
We clean the parts of the unit where dirt and moisture gather: filters, coils, drain trays, fans and the internal panels. You get a TR19® certificate and a photo report showing the unit before and after. The work covers supply and extract fans, drain trays and filter sections, and the jobs we see most are odours coming through the supply air and air handling units due a clean after building work.
In a village or hamlet like Cold Harbour, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
It’s worth checking any contractor’s accreditations. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Place
- Cold Harbour (SL6)
- Region
- Windsor and Maidenhead
- Reporting
- Report and pictures after the visit
- Quotes
- A fixed price before we start
- When we work
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
How the job changes from site to site
Filters
Filters are the first line of defence in the unit. We check them, and clean or change them as agreed in the quote, and clean the filter housing.
Internal casing and panels
Damaged internal linings or loose panels can shed material into the air. Anything like that is recorded with pictures.
Cold Harbour questions
Will you come out to Cold Harbour?
Yes. Villages and rural sites across the South East are part of our work, Cold Harbour included. Let us know about access, parking and anything unusual about getting there when you book.
Can the work in Cold Harbour be done at night or at weekends?
Yes, out-of-hours work is a big part of what we do. The work in Cold Harbour can fit around your hours. Tell us your opening hours when you ask for a quote.
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.
How much does AHU cleaning cost?
Every site is different, so each gets its own fixed quote. To get one, call us on 0345 646 2711 or email us and tell us about the site and its opening hours.
How do you protect the area?
With sheeting and covers, before anything else happens. We keep the work contained and clean down when we finish.
Do you offer emergency callouts?
Yes, day and night, every day of the year. Our office is open from 8am to 6pm on weekdays, and the emergency line covers the rest.
Do you look at the system first?
Yes. Every job is surveyed first, from your pictures and details, or with a visit where necessary. A fixed quote follows.
How far ahead should we book?
For planned work, earlier is better, particularly if your next visit is nearly due. Emergencies are different, because our line is open 24/7.
Places near Cold Harbour
What else we do in Cold Harbour
What happens on the day
Protection comes first: sheeting goes over floors and surfaces close to the work. After that, the system is made safe and the work begins. It takes half a day to a full day per unit, with large plant planned over several shifts, and the area is cleaned down before we leave. If you can send pictures, we can arrive in Cold Harbour knowing what to expect.
- 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.
- We take after pictures and issue the certificate and report.
How to prepare
- Tell us the best time to work, such as after service or at a weekend
- Arrange a key holder or contact on site
- Let us know how we reach the system, including roofs, risers and plant rooms
Getting a quote
Photos are enough for some jobs, while others need a look on site. 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.
Read more
Fixed quotes for AHU cleaning in Cold Harbour
You will get a fixed price before we start. It’s based on:
- Parking and loading at the site
- The condition we find in the survey
- The size of the system
- Any permits to work or inductions
What you pay depends on how big the system is, the condition it’s in and how easy it is to reach. We give you a fixed price before work begins, so there are no surprises.
What we need to know
A few details help us quote accurately. With your enquiry, please include:
- The site address and the type of premises
- Any access panels or hatches you can see
- How we’d reach plant on a roof or in a plant room
- Your opening hours and when the area is out of use
For AHU cleaning in Cold Harbour, ring 0345 646 2711 or send us an email. Tell us what kind of premises it is and when it’s open, and send photos or your last report if you can. A fixed quote usually follows within one working day.
Between visits
Good habits slow the build-up between visits. A few tips:
- Don’t store bins or materials near the intake
- Report water on the plant room floor
- Do not ignore odours coming through the grilles
- Stick to the filter change plan
Restart the unit with your site team or maintenance contractor once we’ve finished. Check the drain tray is emptying over the first few days to make sure it stays clear.
Change or clean filters on time. Once filters clog, dirt starts getting past them.
Cold Harbour buildings and their air
Going by the FSA’s register, there are about 4 hospitals, care homes and childcare premises serving food within about 1.5 miles of central Cold Harbour. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. About 2.8 miles north-east of Cold Harbour is St Mark's Hospital, 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. At about 30 miles from central London, Cold Harbour sits well inside the area we cover. Visits are booked around your hours, evenings and weekends included.
Wherever a school like Knowl Hill Church of England Primary Academy has ducted ventilation, a half-term visit keeps the work out of lesson time. If you run a surgery, dental practice or care home near Cold Harbour, clean ventilation matters as much to you as to a hospital like St Mark's Hospital (about 2.8 miles north-east).
Cold Harbour is about 3 miles west of Maidenhead, in Windsor and Maidenhead. Every kind of commercial site in Cold Harbour, AHU cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Cold Harbour is one of 57 towns, villages and districts in Windsor and Maidenhead we cover for AHU cleaning. Reading is in our area too, around 9 miles away.
Every address in SL6 is within our area for AHU cleaning, from the main roads to the quietest streets. We also cover the places around Cold Harbour: Knowl Hill (1 mile north-west), Warren Row (1 mile north-west), Bowsey Hill (2 miles west), Cockpole Green (3 miles north-west) and Wargrave (3 miles west). Further out, we also cover Maidenhead (3 miles east), Windsor (8 miles east), Boyn Hill (3 miles east), North Ascot (8 miles south-east), Cookham (5 miles north-east) and Furze Platt (3 miles north-east).
Around Cold Harbour
We work in commercial kitchens and buildings around Cox Green School and The Royal Oak pub. The nearest railway station is Wargrave station, roughly 3.3 miles west. Nearby you’ll also find St Mark's Hospital (2.8 miles north-east). For a walk, there’s Hurley Chalk Pit and Taplow Lake.
What a clean won’t put right
Before you book, it helps to know what’s not included:
- Dirty ducts beyond the unit itself
- A system that is undersized for the building
- Leaking heating or cooling coils
Not sure which it is? You can phone us on 0345 646 2711 or email us and we will tell you honestly before booking.
Parts of the system we cover
- Drain trays
- Supply and extract fans
- Heating and cooling coils
- Internal panels
- Dampers and louvres
- Filter sections
What your team can do, and what needs us
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We will take a look and send you a fixed quote.
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, which is where we come in.