Wokingham · Air handling unit cleaning
Knowl Hill AHU cleaning
AHU cleaning in Knowl Hill from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Blocked condensate drains and slimy trays
- Dust-coated heating and cooling coils
- Units that have only ever had filter changes
What we do, step by step
We start by comparing what we find with the survey or your photos. Anything unexpected is raised with you before we go further. From there, it takes anything from half a day for one small unit to several shifts for a plant room full of them. Visits to a village like Knowl Hill are booked in advance, at a time that suits whoever runs the site.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
Preparing for the visit
- Tell us about site rules, permits or sign-in
- Let us know about parking and loading
- Allow time for equipment near the work to be turned off and cool down
Ask for a quote
Every quote begins with a look at the system, from your pictures and details or, where that isn’t enough, a survey on site. Then we send a fixed price, before we start.
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AHU cleaning in Knowl Hill
An air handling unit is the heart of a building’s ventilation: air is pulled in, filtered, conditioned and sent out through the ducts. Anything that collects inside the unit can end up in the rooms it serves, which is why we clean the unit itself, not just the ducts. The work covers drain trays, filter sections and heating and cooling coils, and people most often call us about dust built up on fan impellers and rooms that smell stuffy when the system runs.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, which makes them easy to overlook.
The paperwork matters as much as the work. You get a written report with pictures after each visit, covering the work done, any areas we couldn’t access and a recommended next date. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.
- Place
- Knowl Hill (RG10)
- Region
- Wokingham
- Paperwork
- Photo report after each visit
- Price
- A fixed quote up front
- Hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Staff cleaning versus specialist work
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
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, and that is where we come in.
Places near Knowl Hill
Other services in Knowl Hill
What affects the cost of AHU cleaning
A fixed price needs a few facts first. We check:
- Where the site is and how we reach it
- One-off work versus a regular cycle
- Whether we need access equipment or extra panels
- The number of sites or systems
What you pay reflects the actual work. That’s why every job is surveyed first, and why the quote is fixed before any work starts.
Asking for a quote
A few details help us quote accurately. With your enquiry, please include:
- When the site is open and when it’s quiet
- Your last certificate, test record or report
- Problems your staff have spotted
- Where the site is and what kind of site it is
There’s no standard price list, because every site is different. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To get going, give us a ring on 0345 646 2711 or use the quote form.
Different parts, different methods
Drain trays
Standing water in a tray sits right where the air passes. We clean it and report anything about the tray or drain that needs fixing.
Rooftop and plant room units
Many AHUs sit on roofs or in plant rooms with limited access. Access is planned during the survey so the quote reflects it.
Leave it or put it right?
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. A planned visit to Knowl Hill is easier to arrange than an emergency callout.
Kitchens, offices, schools and hospitals are all priced the same way: how much there is, how we reach it, what state it’s in and when we can work. Ask for a fixed quote and we will explain each part.
What you get with us
- Evenings, overnight and weekends, plus 24/7 emergency callout
- We are fully insured
- A written report with pictures after each visit
- In business since 2009
See our cost guide or our accreditations.
Landlords, agents and facilities managers
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we can quote for the whole system.
We also work for facilities teams across offices, schools and healthcare across Wokingham. Larger estates can be phased building by building to keep disruption down.
AHU cleaning in Knowl Hill: local notes
Food Standards Agency records list about 3 caring premises (care homes, nurseries and hospitals) registered as food businesses within roughly a mile and a half of the centre of Knowl Hill. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. About 3.3 miles east of Knowl Hill is St Mark's Hospital, the nearest hospital. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. Knowl Hill is about 31 miles from central London, well within the area we cover across London and the South East. A survey and a fixed quote come first, then the visit at a time that suits you.
If you run a surgery, dental practice or care home near Knowl Hill, clean ventilation matters as much to you as to a hospital like St Mark's Hospital (about 3.3 miles east). Classrooms and halls at schools such as Knowl Hill Church of England Primary Academy are easiest to work in when pupils are away.
Knowl Hill is about 4 miles west of Maidenhead, in Wokingham. Sites in Knowl Hill get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where needed and a written report with pictures. Knowl Hill is one of 35 places in Wokingham we cover for commercial clients. Reading is in our area too, about 8 miles from Knowl Hill.
Every address in RG10 is within our area for AHU cleaning, from busy streets to back roads. Streets in the area include Star Lane, Choseley Road and Choseley Close, and we cover them all for AHU cleaning. Other places close to Knowl Hill include Warren Row (1 mile north-west), Cold Harbour (1 mile south-east), Bowsey Hill (1 mile west), Cockpole Green (2 miles north-west) and Wargrave (2 miles west). Within a short drive, we also cover Reading (8 miles south-west), Wokingham (7 miles south), Woodley (5 miles south-west), Earley (7 miles south-west), Crowthorne (9 miles south) and Lower Earley (7 miles south-west).
Near you in Knowl Hill
Typical jobs here are in premises near Seven Stars Public House And Attached Stables. The closest station to Knowl Hill is Wargrave station, about 2.7 miles west of the centre. A little further out are Frazer Nash Archives (3.6 miles west) and St Mark's Hospital (3.3 miles east). Green spaces nearby include Weycock Hill and Hurley Chalk Pit.
What a clean will not put right
Not every problem is solved by AHU cleaning, and we’ll tell you before work begins. It won’t put right:
- The supply and extract ducts, quoted separately
- Controls and BMS settings that run the unit
- Airflow problems caused by the system’s design
If you’re not sure, just call 0345 646 2711 or send us an email and we will give you a straight answer.
What the work covers
- Drain trays
- Heating and cooling coils
- Dampers and louvres
- Filter sections
- Internal panels
- Supply and extract fans
Knowl Hill questions
Can you work in Knowl Hill outside opening hours?
Yes. We work evenings, overnight and at weekends. The work in Knowl Hill can fit around your hours. Let us know the hours you’re closed and we will book within them.
Will you come out to Knowl Hill?
Yes. Knowl Hill is within the area we cover across London and the South East. The journey is planned ahead, so a few details about the route help.
Can you fix a faulty AHU?
Motors, belts, controls and coils that need repair are a job for your maintenance contractor. We will flag anything we notice during the clean.
Is there a survey before the work?
Yes. For many sites, photos and a few details are enough, while bigger or harder-to-see systems are surveyed on site.
What should I send you?
Only a few details: the address, the site type, your opening hours and how we reach the system. Photos and any previous paperwork make it quicker. After that, simply call 0345 646 2711 or use the quote form.
Is there a report after cleaning?
Yes, a TR19® certificate and a photo report. It includes a recommended date for the next check.
Which parts of an air handling unit do you clean?
Filters, coils, drain trays, the fan and the internal surfaces are all covered. Filters are cleaned or changed as agreed in the quote.
Which kinds of sites do you work on?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, as well as food production and leisure sites.