Windsor and Maidenhead · Air handling unit cleaning
Clewer AHU cleaning
Specialist AHU cleaning for Clewer: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- Dirty filters cutting the airflow
- Plant that needs cleaning after a refit
- Units that have only ever had filter changes
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. Systems on quieter sites still build up dirt and wear, just more slowly.
When the work has to happen, how we reach it and how big the site is all affect the cost. We take each of them into account and give you a fixed price before any work starts.
What you get with us
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Each visit written up, with photos
- One contact for all your sites in London and the South East
- In business since 2009
Take a look at our cost guide and our accreditations and certificates.
AHU cleaning for kitchens and businesses in Clewer
All the building’s air passes through the fan, so dirt on the impeller and housing gets spread around. We clean the fan section along with the rest of the unit, once the unit has been shut down and isolated. We’re often asked to deal with dirty coils holding back the airflow and dirty fans and fan housings, on filter sections, heating and cooling coils and drain trays.
For a building near Clewer, the visit is planned around how it’s used, and the journey is planned ahead. The work is the same as in any town: inspect, clean, record.
The paperwork matters as much as the work. Each visit is written up with photos, covering the work done, any areas we couldn’t access and a recommended next date. File it in your maintenance log so it’s to hand when an insurer or inspector asks.
- Where
- Clewer (SL4)
- Wider area
- Windsor and Maidenhead
- Reporting
- Report and photos after the visit
- Quotes
- A fixed quote up front
- Hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
Clewer: your questions answered
Do you cover smaller places like Clewer?
Yes, smaller places are covered as well as towns. A survey first, from pictures or a visit, means we arrive with the right kit.
Do you work overnight in Clewer?
Yes, we can come after you close and finish before you open. The site is handed back ready to open. Let us know the hours you are closed and we’ll book within them.
What do you do to protect the area?
By covering it before any work starts. We keep the work contained and clean down when we finish.
What’s included in an AHU clean?
All the internal parts the air touches, from the intake and filters through the coils and fan to the outlet. The photo report shows each section before and after.
What happens to the waste?
We take it away at the end of the visit. While we work, it’s kept contained so the area stays clean.
What about areas you cannot get to?
The report shows them clearly. Often the fix is extra access, such as new panels in ductwork, and we can fit those.
Do you need to switch the unit off?
Yes, while the clean is under way. Out-of-hours work is available to keep disruption down.
Do you do ventilation duct cleaning too?
Yes. We clean supply and extract ductwork to TR19® Air as well. Cleaning the unit and ducts together often makes sense, and we can quote for both.
What happens on the day
Everything the job needs comes with us, including protection sheets, the right tools and access kit. You only need to give us clear access and switch off what needs to be off. On site, the work takes anything from half a day for one small unit to several shifts for a plant room full of them. In a place like Clewer, we fit the visit around your hours.
- We agree a shutdown window that suits the building.
- We take before photos of each section of the unit.
- 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 photos and issue the certificate and report.
Before we arrive
- Agree a time when the area can be out of use
- Clear loose items from the work area
- Have your last certificate or report to hand
How to get a quote
Want a quote for AHU cleaning? Please phone us on 0345 646 2711 or send us an email with a few details about the site. We will explain what we’d do and send a fixed quote before you commit to anything.
Advice
Keeping the system healthy
Good habits slow the build-up between visits. A few tips:
- Plan the next inspection before the last report gets filed away
- Make sure condensate is draining away
- Flag stale or damp smells in the supply air
- Make sure the unit’s access doors open easily
Once the clean is done, we send a TR19® certificate and a report with before and after photos. Keep both with the building’s maintenance records.
Keep the unit’s doors and panels in working order. Sections that are awkward to open are the ones that get skipped.
When something else is needed
A few issues sit outside what this work can do:
- Ventilation that was badly designed in the first place
- Mechanical faults with motors, belts or bearings
- Building management system faults
If in doubt, call us on 0345 646 2711 or use the quote form and we will say what we think.
Parts of the system we cover
- Drain trays
- Filter sections
- Supply and extract fans
- Heating and cooling coils
- Dampers and louvres
- Internal panels
What your team can do, and what needs us
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they do not reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they can’t safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
How we price AHU cleaning
The price is fixed before any work begins. It’s based on:
- When the work can happen, such as evenings, overnight or weekends
- Any permits to work or inductions
- The scale of the work
- The condition we find in the survey
Whatever the type of site, the quote works the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we will go through it with you.
What to send for a quote
A few details help us quote accurately. When you get in touch, it helps to send:
- When the site is open and when it’s quiet
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- A few general shots of the system
- Close-ups of filters, grilles, hatches or access panels
Here’s what helps us quote: the address, the type of site and when it’s open, pictures of the system and any previous report or certificate. Then call us on 0345 646 2711, or email photos.
Other services in Clewer
Clewer buildings and their air
Going by the FSA’s register, there are about 55 schools, colleges and universities, about 14 hospitals, care homes and childcare premises and about 13 hotels, B&Bs and guest houses serving food within about 1.5 miles of central Clewer. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. About 1 mile south-east of Clewer is King Edward VII Hospital, the nearest hospital. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital. Clewer, about 23 miles from central London, is within our usual area. We work evenings, overnight and at weekends, so the visit fits around the site.
If you run a surgery, dental practice or care home near Clewer, clean ventilation matters as much to you as to a hospital like King Edward VII Hospital (about 1 mile south-east). If you manage shops or offices close to Windsor & Eton Central station, a TR19® Air inspection shows whether the ductwork needs cleaning. Classrooms and halls at schools such as St Edward's Catholic First School are easiest to work in when pupils are away.
Clewer is about 1 mile north of Windsor, in Windsor and Maidenhead. Wherever you are in the SL4 postcode area, we can carry out AHU cleaning at your premises. Our Windsor and Maidenhead coverage runs to 57 places, Clewer among them. For sites nearby, see our Reading page, about 15 miles away.
Here we cover the SL4 postcode area for AHU cleaning. If you need AHU cleaning at premises on Oak Lane, Vale Road and Mill Lane or a nearby road, we can help. Being close to the A308 and A332, Clewer is simple for us to get to for AHU cleaning. Close by, we work in Windsor (1 mile south), Eton (1 mile north-east), Eton Wick (1 mile north-west), Boveney (1 mile west) and Dedworth (1 mile south-west). Within a short drive, we also cover Maidenhead (5 miles north-west), Boyn Hill (5 miles west), North Ascot (5 miles south-west), Cookham (7 miles north-west), Furze Platt (6 miles north-west) and Broomhall (6 miles south).
Landmarks near Clewer
Locally, jobs take us to businesses close to The Windsor Boys' School, The Windsor Boys' School and The Vansittart Arms and the streets around them. Clewer’s nearest station is Windsor & Eton Central station, about 0.7 miles east. Other landmarks nearby include Museum of Antiquities (0.7 miles north-east) and King Edward VII Hospital (1 mile south-east). The countryside around Clewer includes Taplow Lake and Bray Pit.
Different parts, different methods
Fans and fan sections
Before the fan is touched, the unit is shut down and made safe with your site team.
Heating and cooling coils
A dirty coil holds back the air and makes heating and cooling less effective. A clean gets air moving through the coil properly again.