West Berkshire · Air handling unit cleaning
Frilsham AHU cleaning
AHU cleaning across Frilsham and nearby, timed so the site keeps working and signed off in writing with photos.
- Coils clogged with dust and debris
- Units needing a clean before a new tenant or handover
- Dirty fans and fan housings
Keeping the system healthy
Aftercare is simple, and it makes the next visit easier:
- Plan the next inspection before the last report gets filed away
- Do not store bins or materials near the intake
- Keep filter changes on time and recorded
- Look at the condensate drain whenever the unit is serviced
The report suggests a date for the next inspection or clean, taking into account how dirty it was. TR19® Air is risk-based, so the interval depends on the unit and how the building is used.
Keep the area around the intake clear. Anything around the intake is likely to be drawn in.
How we handle AHU cleaning in Frilsham
Heating and cooling coils trap dust that gets past the filters. Dirt on the fins holds back air and makes the unit work harder to do the same job. We clean coils with methods suited to their condition, taking care not to damage the fins. If you have dust-coated heating and cooling coils and condensate trays that won’t empty, we can put it right.
In a village or hamlet like Frilsham, few buildings have mechanical ventilation, but those that do need it inspected and cleaned like any other.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we’re fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we’ve been trading since 2009.
- Where
- Frilsham (RG18)
- Region
- West Berkshire
- Reporting
- Written report with pictures
- Quote
- A fixed quote up front
- Hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
What we do, step by step
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Equipment that has to be off is switched off and allowed to cool first, and the area around the work is covered and protected. The work itself takes from a few hours for a compact unit to a day or more for a large one. Somewhere like Frilsham, lanes, gates and parking are worth mentioning in advance.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
Before we arrive
- Name a contact who can let us in at the agreed time
- Let us know about permits to work or site inductions
- Find the previous report, if there is one
How to get 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 we start.
Advice
Places near Frilsham
Also in Frilsham
Leave it or put it right?
Stuffy rooms and stale smells in a building in Frilsham can sometimes be traced back to the AHU. A clean tackles the source instead of masking it. It’s simpler to plan the work at Frilsham now than to arrange it in a hurry later.
The cost depends on how big the system is, what state it’s in and how easy it is to reach. You get a fixed price before we start, so there are no surprises.
Why us?
- We diagnose before we treat
- A fixed price before any work starts
- CHAS, SafeContractor and ISO 9001
- Ventilation hygiene specialists since 2009
Take a look at our cost guide and how to check a contractor.
Staff cleaning versus specialist work
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, they should report it rather than try to fix it. We can diagnose it and quote.
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.
When something else is needed
We’ll always give you a straight diagnosis, so here’s what AHU cleaning will not do:
- Controls and BMS settings that run the unit
- Ventilation that was badly designed in the first place
- Faulty motors, drives or bearings
Not sure which it is? You can ring 0345 646 2711, or email photos and we will tell you honestly before booking.
Parts of the system we cover
- Supply and extract fans
- Dampers and louvres
- Filter sections
- Internal panels
- Drain trays
- Heating and cooling coils
Multi-site and managed buildings
We also work for facilities teams across offices, schools and healthcare across West Berkshire. Larger estates can be phased building by building around the people who use them.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. Where responsibility is shared, records matter even more.
Common questions in Frilsham
Do you cover smaller places like Frilsham?
Yes, Frilsham is part of our area, however small the site. A survey first, from photos or a visit, means we arrive with the right kit.
Can you come to Frilsham after we close?
Yes, we can come after you close and finish before you open. That way a site in Frilsham doesn’t have to lose a day’s trading. Tell us your opening hours when you ask for a quote.
Are you accredited?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
Do you have a 24/7 line?
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.
What should I send you?
The site address, the type of premises and your opening hours, along with a few pictures and any previous report.
Do you give a certificate after the clean?
Yes. Every clean comes with a TR19® certificate and a photo report. Keep them in the maintenance log.
How do you protect the area?
By covering it before any work starts. We keep the work contained and leave the area clean.
Do you repair air handling units?
Our AHU work is cleaning rather than mechanical repair. Any faults we notice are recorded so your maintenance contractor can deal with it.
Frilsham buildings and their air
Frilsham is about 48 miles from central London, well within the area we cover across London and the South East. We work evenings, overnight and at weekends, so the visit fits around the site. West Berkshire Community Hospital is the nearest hospital, about 4.7 miles south-west of Frilsham. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Hospitals such as West Berkshire Community Hospital (about 4.7 miles south-west) show how much a building can rely on clean ventilation, and smaller healthcare sites near Frilsham are no different.
Frilsham is about 4 miles north-east of Thatcham, in West Berkshire. Sites in Frilsham get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with photos. Our area takes in 155 places across West Berkshire, from busy centres to quieter spots. There’s also a page for Reading, about 10 miles away.
Every address in RG18 is covered for AHU cleaning, from busy streets to back roads. Local streets include Beechfield Lane, Hatchets Lane and Chapel Lane, all of which we cover for AHU cleaning. Close by, we work in Yattendon (1 mile north-east), Wellhouse (2 miles west), Little Hungerford (2 miles west), Hampstead Norreys (2 miles north-west) and Oare (2 miles west). Within a short drive, we also cover Newbury (6 miles south-west), Thatcham (4 miles south-west), Burghfield Common (8 miles south-east), Speenhamland (6 miles south-west), Hungerford (13 miles west) and Spencers Wood (11 miles east).
Near you in Frilsham
Around Frilsham, our work takes us to kitchens and buildings near The Pot Kiln pub, among other places. For rail, the closest station is Midgham station, about 4.3 miles south of the centre. Other landmarks nearby include West Berkshire Community Hospital (4.7 miles south-west) and Yattendon Castle (1 mile north). For a walk, there’s Nature Discovery Centre.
Common problems we fix in Frilsham
Mechanical servicing keeps a unit running, but it doesn’t always include cleaning the inside. So a unit can be well maintained and still dirty.
Keep an eye out for any of the following:
- Leaves and litter drawn into the unit
- Units needing a clean before a new tenant or handover
- Odours coming through the supply air
- Dust built up on fan impellers
Wherever a school like Yattendon C.E. Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Comparing quotes
- Whether a survey comes first
- Whether a written report and pictures are included
- How areas they cannot reach will be recorded
- Proof of insurance